#linuxcnc | Logs for 2018-06-30

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[00:52:55] <RyanS> Wolf_ I'm working on a mesa setup for a plasma, but I'm new to this stuff
[00:54:20] <RyanS> mesa has the THCAD board for THC. I'm told it's better than the ebay ones
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[01:08:04] <Wolf__> yeah, I’ll probably end up going that route for the control side seeing its already proven and has documentation on the forum
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[01:24:11] <RyanS> I'm hoping I can work it out. a bit worried I'll fry something with interference from the plasma
[01:25:11] <Wolf_ITX> best bet if you have questions about the setup is to ask jt I think
[01:26:47] <RyanS> yeah i'm going to use his setup and post processor
[01:29:38] <Wolf_ITX> I wanted to make a simple setup using something like a smoothie board but the THC is a hangup
[01:29:46] <Wolf_ITX> becomes not so simple lol
[01:35:20] <Wolf_ITX> you doing a regular gantry table?
[01:38:23] <RyanS> yeah 1200x1200mm ( 4'x4'), water table, rack and pinion. not decided on the linear rails yet
[01:44:38] <Wolf_ITX> sounds good, I'm thinking about trying a arm and carriage setup, maybe 6'x4'
[01:44:57] <RyanS> cool
[01:45:32] <Wolf_ITX> I would do a 6x12' table but I dont want to give up a whole garage bay lol
[02:00:03] <gloops> i wish id built vertical now, though not an option for plasma i wouldnt think
[02:04:19] <RyanS> A NON-Newtonian water table that defies gravity
[02:04:31] <gloops> could have a waterfall
[02:04:59] <Wolf__> loading a vertical plasma table with odd shaped stock might be a pain
[02:06:22] <gloops> some pros and cons
[02:09:00] <gloops> https://www.youtube.com
[02:09:07] <gloops> look at the lovely space
[02:11:07] <gloops> i think you could get some kind of water flow running down the back panel, a rail with drips/jets at the top, keep it damped down
[02:14:10] <RyanS> apparently those are lemons
[02:17:48] <gloops> vertical tables?
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[02:18:30] <RyanS> burntables brand
[02:18:59] <gloops> ahh, no idea
[02:19:11] <gloops> id have the gantry running the other way i think
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[02:31:52] <IchGucksLive> morning from germany
[02:32:06] <IchGucksLive> Wolf_ITX, still on
[02:32:53] <IchGucksLive> Wolf__, still on
[02:33:11] <Wolf__> yeah
[02:33:20] <IchGucksLive> thc is quite easy
[02:33:28] <IchGucksLive> if yoiu got up down signals
[02:33:51] <IchGucksLive> Wolf__, there is a component that does it for you
[02:34:14] <Wolf__> yeah, just feed the thc signals in to the mesa board, right lol
[02:34:35] <IchGucksLive> Wolf__, depending on thc you also can have a torch on pin
[02:34:58] <IchGucksLive> whatever board you have
[02:35:52] <IchGucksLive> loadrt thcud
[02:35:52] <IchGucksLive> addf thcud servo-thread
[02:36:13] <IchGucksLive> net TorchUp thcud.torch-up <= hm2_5i25.0.7i76.0.0.input-09
[02:36:13] <IchGucksLive> net TorchDown thcud.torch-down <= hm2_5i25.0.7i76.0.0.input-10
[02:36:13] <IchGucksLive> net ArcOk thcud.arc-ok <= hm2_5i25.0.7i76.0.0.input-08
[02:36:59] <IchGucksLive> and then it is up to lcnc vercion
[02:37:15] <IchGucksLive> the thc copmponent changes from time to time
[02:37:33] <IchGucksLive> net CurVel thcud.current-vel <= motion.current-vel
[02:37:33] <IchGucksLive> setp thcud.requested-vel 15.0
[02:37:33] <IchGucksLive> setp thcud.vel-tol 8.0
[02:37:33] <IchGucksLive> setp thcud.correction-vel 0.001
[02:37:36] <Wolf__> yeah, if you are using something like the thcad and linuxcnc or mach3, everything else I have looked at like gbrl/smoothie + stand alone thc looks like a mess
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[02:43:01] <IchGucksLive> still on i got wlan problems as so many are here today starting at 6 am at lakeside
[02:43:09] <IchGucksLive> eatch party all day long
[02:43:56] <IchGucksLive> im off have a nice bitbreak free day wherever you are in the world
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[03:10:18] <Deejay> moin
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[04:17:18] <gonzo_> morning
[04:18:04] <gonzo_> will just repost a question from last night, in case fresh people can enlighten me....
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[04:18:09] <gonzo_> <gonzo_> any cambam experts in here this eve? (well, more expert than me, which is not difficult)
[04:18:09] <gonzo_> <gonzo_> trying to get it to mill a sloping surface (sloping in Z axis), in an easy way
[04:19:19] <gonzo_> I would like to avoid the whole 3d surface thing at the mo. As I'm new to cad/cam, let along this package
[04:20:53] <gonzo_> alone
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[04:39:47] <gloops> nope never used it
[04:40:14] <gloops> IchsGuckslive will know it
[04:41:36] <gloops> any drawing of the part gonzo?
[04:44:47] <XXCoder> my experence with cambam is that usually bam, it crashes :(
[04:46:43] <gloops> probably going to be looking at a 3D contour toolpath for a slope i think
[04:47:10] <gloops> unless you can incline a pocket or something
[04:49:21] <gloops> gonzo you may as well bite the bullet, you need to know this app inside out, go through all the youtube tutorials until you can do everything
[05:00:58] <gonzo_> no drawings, just knocking up a test part for an exercise
[05:01:50] <gonzo_> I need to mill off a surface, part flat, part sloping down.
[05:02:39] <gonzo_> I have a pocket with a sloped side whick looks like it may work, but I'm doing a hell of a lot of air milling that way
[05:03:32] <gonzo_> you don't seem to be able to slope a whole pocket though
[05:04:00] <gloops> can you do a 2 rail sweep?
[05:06:50] <gloops> http://www.cambam.info
[05:07:10] <gloops> there does look to be a sweep/loft option, like freecad
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[05:09:26] <gloops> thats a spindle profile though i think
[05:10:36] <gloops> extrude would be one way maybe http://www.cambam.info
[05:10:51] <gloops> draw 2d cross section, extrude, rotate
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[05:42:49] <gloops> hmm, what to try today
[05:42:57] <gonzo_> gloops, I was looking to see if I could do an extrude, then rotate it
[05:43:17] <gloops> problem is my mind isnt geared to wards small things, signs and bits and bobs
[05:43:24] <gloops> i should working on cathedrals
[05:44:10] <gloops> gonzo there should be some option to drive a vector along a drive rail or between 2 rails
[05:45:21] <gloops> dont know which would be the best option for your part, but these tools are common to most CAD apps
[05:55:11] <RyanS> why doesn't nema 24 seem to be a popular size?
[05:55:31] <XXCoder> nema23
[05:55:44] <RyanS> no 24
[05:56:31] <RyanS> 60x60mm
[05:57:37] <XXCoder> im not correcting you
[05:57:38] <XXCoder> nema23 is the reason nema24 isnt popular
[05:58:22] <RyanS> too close to the next size?
[05:58:32] <XXCoder> I guess at some point in past 23 or 24 were made, and 23 someone wanted lots of em, so they made lots of em, and hence cheaper
[05:58:41] <XXCoder> size is close so everyone gets 23
[05:59:02] <XXCoder> maybe im wrong on how it started but yeah 23 and 24 is quite close
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[06:18:38] <gloops> not sure if Tom_L uses nema 24, hes got the strongest of that 23/24 motor anyway
[06:20:02] <gloops> i noticed when i was marking stuff out for the motors and such - the metric dimensions all seem to fall on a distinct imperial measurement, so maybe thats where the sizes came from
[06:20:47] <gloops> as the chinese ones are all copied from american anyway
[06:21:32] <RyanS> there's a nema 24 that is 4nM, close to a small 34 but higher RPM
[06:32:30] <gloops> well, the nema 34a i bought opened my eyes
[06:32:43] <gloops> there is no comparison to the chinese nema 23 motors
[06:34:39] <XXCoder> I bet yeah
[06:34:55] <XXCoder> my machine can only use 23s without adoptions anyway
[06:36:23] <RyanS> well 43s have a lot more torque
[06:36:39] <RyanS> 34
[06:38:38] <Wolf__> gloops: “The National Electrical Manufacturers Association (NEMA) defines standards used in North America for various grades of electrical enclosures typically used in industrial applications”
[06:38:54] <Wolf__> might explain the imperial sizes
[06:40:42] <gloops> Wold i just noticed when using ruler with metric on one side and imperial on the other - it always fell on a regular imperial size
[06:40:56] <gloops> like 2 1/4
[06:41:24] <gloops> why would anyone using metric pick 23 anyway, why not 25
[06:55:53] <Wolf__> just 34 all the things
[06:56:30] <jthornton> morning
[07:01:21] <Wolf__> morning
[07:05:44] <jthornton> wow it's already 76°F
[07:05:58] <XXCoder> its 84f here. no sun yet
[07:06:46] <jthornton> wow that's hot for a night time low
[07:07:23] <XXCoder> oh well lol
[07:07:29] <XXCoder> welcome to summer
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[07:13:33] <IchGucksLive> hi all
[07:13:52] <IchGucksLive> RyanS, you are pulling a torque non BIT
[07:14:08] <IchGucksLive> i got best expirience with 2Nm
[07:14:30] <IchGucksLive> RyanS, you need speed as your request
[07:14:57] <IchGucksLive> gonzo_, try the free SHEETCAM version
[07:15:56] <IchGucksLive> XXCoder, the nema 24 have 30% more torque with same Mounting pattern only 60 insted of 57
[07:16:26] <IchGucksLive> XXCoder, nema 24 can go 4Nm at 3A
[07:16:45] <IchGucksLive> XXCoder, gift is one psu 3 hard working steppers
[07:17:07] <IchGucksLive> om off till later
[07:17:32] <IchGucksLive> around 3000 swimmsuit ladys here
[07:17:50] <IchGucksLive> lakeside even no water in view so many peole here
[07:18:04] <IchGucksLive> why dident they go to Holiday
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[07:55:41] <jthornton> https://forum.linuxcnc.org
[07:55:49] <jthornton> dunno if I should reply or not
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[08:34:09] <fragalot> hey
[08:34:25] <gloops> afternoon
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[08:58:00] <Guest63643> hi
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[08:59:52] <diverdude> Hi, I have for some reason begun to get this error when I am trying to issue mdi commands: "Must be in MDI mode to issue MDI command". What is causing this error? How do i get into MDI mode?
[09:01:47] <nick001> push F3
[09:02:45] <diverdude> ah yeah found it :)
[09:02:57] <diverdude> c.mode(linuxcnc.MODE_MDI)
[09:06:05] <JT-Shop> dang people
[09:08:08] <nick001> s'matter
[09:08:46] <JT-Shop> I keep getting requests for costs of shipping when they can do it in the cart'
[09:10:11] <nick001> post it on the cart page-lead en to the water
[09:11:18] <nick001> also thougt the cart had zip code box for that
[09:11:21] <tjb1> JT-Shop: you use sheetcam dont you?
[09:13:56] <jthornton> tjb1: yes
[09:14:07] <tjb1> Does it have a way to detect that its crossing a kerf?
[09:14:15] <tjb1> and insert a code before and after the kerf?
[09:14:20] <jthornton> not that I know of
[09:15:11] <tjb1> How does your THC handle crossing a kerf?
[09:15:34] <nick001> JT -hardinge indexing, is it possible to program in anoter set of indexes for the turretin the PLC? ie,t21,t22,t23 etc and use the same H - t21 G43 H1
[09:15:36] <jthornton> I don't cross a kerf
[09:16:10] <jthornton> nick001: for a dual turret?
[09:18:45] <nick001> no-2 tools on the same turret face- stock stop and move over and spot drill
[09:19:33] <nick001> rough and finish face on same turret position
[09:19:43] <jthornton> so tool T1 and T21 are the same index?
[09:20:12] <nick001> yes
[09:20:15] <jthornton> or T1 and T11
[09:20:22] <jthornton> I'm sure it can be done
[09:21:10] <jthornton> might be easier to do T1, T11 T2, T21 etc and only use the first digit for the index
[09:21:34] <nick001> Fisrt Hardinge I used Wallaces script and have actually used 3 tools on the same station T1 T21 T31
[09:22:05] <jthornton> hmm so the last digit is the index position
[09:22:15] <nick001> right
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[09:23:02] <tjb1> .weather 14902
[09:23:06] <nick001> this way I can touch off both tools and have full offset control
[09:23:31] <jthornton> that should work...
[09:24:09] <nick001> can I doctor the PLC on the second machine to do this?
[09:24:48] <jthornton> a real PLC or Classicladder?
[09:25:13] <jthornton> hmm I smell bacon cooking
[09:25:16] <nick001> Classic ladder - your setup
[09:25:22] <diverdude> for some reason i can run this code: G54 Z0.5 but i cannot run this G54 Z-0.5. It says it will exceed the limit....but if i first run this 2 times: G54 Z0.5, it has moved 1mm - then it should be able to move 0.5mm back again yeah?
[09:25:49] <diverdude> ahhh its because its absolute positioning?
[09:25:58] <tjb1> wouldnt that depend on absolute vs incremental?
[09:26:25] <diverdude> tjb1: right....so i have to somehow set it to incremental instead then
[09:26:42] <tjb1> G91?
[09:27:09] <tjb1> mill yeah?
[09:27:36] <diverdude> right...i will try it
[09:27:37] <diverdude> yes
[09:27:38] <nick001> G91 G54 switch back to G90 when dome
[09:28:23] <tjb1> Maybe someone knows..how do you program a C axis move that crosses 0?
[09:28:49] <tjb1> For instance, currently at 300 and need to move 120, if you program that as 60 it goes backwards
[09:29:43] <tjb1> Maybe a poor example...I think my problem that start + move was equal to the start because of the cross
[09:31:44] <nick001> back later - hve to actually make some tooling
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[09:34:03] <diverdude> Is linuxcnc always moving in either inches or mm?
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[09:36:19] <tjb1> G20/G21 typically determines that in Fanuc world
[09:36:36] <tjb1> well what the program is written in
[09:36:51] <diverdude> tjb1: Fanuc world?
[09:37:16] <tjb1> I mostly program machines with Fanuc controllers
[09:37:28] <diverdude> aha i see
[09:38:00] <diverdude> tjb1: just because in step wizard i can only choose between mm and inch
[09:38:24] <tjb1> did you want it to be something else?
[09:38:55] <diverdude> tjb1: no...i actually want it to be in mm....but I am asking out of curiosity
[09:41:44] <diverdude> Also, in my manual ( https://www.china-cncrouter.com) It says under specifications: "Repeat positioning Accuracy ： 0.05mm". Does that mean that the smallest stepsize which this machine can move with is 0.05mm?
[09:44:50] <pcw_home> If you want the basic machine to be mm, you choose that in stepconf, you can still use inch or mm gcode with g20 or g21
[09:46:02] <pcw_home> things like jog speed and maximum velocity will stay in the basic machine units regardless of G20 or G21
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[09:46:25] <tjb1> https://blog.robotiq.com
[09:47:09] <SpeedEvil> diverdude: stepsize would usually be resolution
[09:47:32] <SpeedEvil> diverdude: repeat positioning accuracy means if you command it to a position, some other position, then return to the first, it will be 0.05mm away at most
[09:47:58] <SpeedEvil> - sometimes with the requirement that the move be in the same direction as the last movement to take up backlash
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[10:00:44] <diverdude> SpeedEvil: ahh ok thats very interesting
[10:01:53] <diverdude> SpeedEvil: hmm manual does not say anything about resolution....is there a way to figure out what the smallest move is in each direction?
[10:02:09] <Tom_L> 80�F
[10:03:17] <diverdude> Tom_L: ?
[10:06:56] <Tom_L> 26.6�C ?
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[10:07:25] <IchGucksLive> hi all
[10:07:32] <IchGucksLive> we are near melting ;-)
[10:08:02] <IchGucksLive> diverdude, online ?
[10:08:49] <diverdude> IchGucksLive: yes, hello :)
[10:08:51] <IchGucksLive> Repeat positioning Accuracy may be the backlash
[10:09:01] <diverdude> IchGucksLive: yes its REALLY warm
[10:09:26] <IchGucksLive> diverdude, you shoudt get some Simulation practice
[10:09:50] <IchGucksLive> diverdude, as you fight with coordinate system and setup of gcode
[10:09:52] <diverdude> IchGucksLive: im sitting on 5th floor right under the roof....Gives a nice bit of extra heat feeling :D
[10:10:29] <IchGucksLive> im in frech air outside and look on lots of nice swimming girls
[10:10:38] <diverdude> small room of 10m2 and some heat generating machinery running also dont make things more cool haha
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[10:11:10] <diverdude> ohhh sounds like you are enjoying life more haha
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[10:14:11] <IchGucksLive> live is there to be enjoyd
[10:14:45] <gloops> france 1 arg 0
[10:15:22] <IchGucksLive> diverdude, my channel for Gcode https://www.youtube.com
[10:15:30] <IchGucksLive> diverdude, lotsa more there
[10:17:22] <diverdude> oh nice. i will check it out. thanx
[10:18:42] <IchGucksLive> diverdude, what CAM system you use
[10:20:23] <IchGucksLive> gloops, more head to come in the UK
[10:20:39] <gloops> yes looks like Ichs
[10:21:19] <IchGucksLive> 33 here now according to the Lake temp led sign
[10:22:10] <gloops> maybe about 30 here
[10:22:33] <IchGucksLive> gloops, did the pdm guy join onesmore
[10:22:41] <diverdude> IchGucksLive: this one https://www.edmundoptics.com
[10:22:44] <JT-Shop> it's already 28°C here at 9:22am
[10:22:53] <gloops> not seen him - he hasnt been on facebook since
[10:22:57] <gloops> maybe got it going
[10:24:40] <IchGucksLive> im off till later
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[10:29:53] <miss0r> Anyone in here from sweden?
[10:32:19] <miss0r> I'm going there(again) this summer for some camping with the guys. But with the current heatwave'n all we are getting worried that we would not be allowed to light a campfire. Is it ever forbidden completely? or should you just take extra care?
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[10:34:40] <CaptHindsight> aren't fires hot?
[10:35:05] <miss0r> last time I checked very hot. So hot, infact, that I burned myself
[10:36:08] <CaptHindsight> I'd want some sort of camp cooler
[10:36:42] <miss0r> a campfire cooler... :D
[10:36:43] <CaptHindsight> cools the campsite for a few m^2
[10:37:25] <miss0r> that'd be sweet
[10:37:38] <miss0r> Doesn't sound like something that would consume alot of power, at all :D
[10:38:09] <CaptHindsight> heat absorbing bottle
[10:38:15] <miss0r> :o
[10:38:36] <CaptHindsight> open it and it collects the heat, cap it until you're leaving, then release
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[11:15:04] * fragalot returns!
[11:15:25] <gloops> wow 2-2
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[11:21:52] <gloops> France looking favourites 3-2
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[11:26:23] <gloops> 4...
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[11:50:15] <miss0r> fragalot: Have you video recorded some of your mad scraping skillzz ?
[11:51:00] <fragalot> no
[11:51:27] <fragalot> syyl_ is better at that than me :P
[11:51:28] <miss0r> :] go reinact it
[11:51:46] <miss0r> hardly fair comparison. Theres little he can't kick our asses at.
[11:53:10] <miss0r> If I can choose between lobster and spaghetti, i'll take the lobster. but if that is sold out, i'll take the spaghetti.
[11:53:19] <Roguish> JT-Shop: we're going 100+ here today.
[11:53:37] <miss0r> damn
[11:55:43] <miss0r> fragalot: When AvE breaks the bolt for the breaking bell :D hehe
[11:56:03] <fragalot> I liked how he predicted himself doing it
[11:56:07] <miss0r> yeah
[11:56:07] <fragalot> wait until he tries to extract it
[11:56:13] <miss0r> "Oh for frogs snacks!"
[11:56:22] <miss0r> hehe, I can't wait!
[12:04:45] <miss0r> Meh. he pulled it off
[12:04:59] <fragalot> nearly made it worse though
[12:05:03] <fragalot> which is what I meant
[12:05:35] <miss0r> yeah. Funny though - he has a milling machine; why would he not mount it proper in there to do that job? :S
[12:05:43] <fragalot> because it's AvE.
[12:06:08] <fragalot> and his hands are probably more accurate than his clapped out bridgeport :P
[12:06:37] <miss0r> hehe probally :)
[12:06:58] <miss0r> Gotta return to family duty. see you agound
[12:07:01] <miss0r> around*
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[12:14:21] <jthornton> Nick001-shop: you around?
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[12:25:25] <skunkworks> jthornton: is mesaus.com down?
[12:25:34] <jthornton> no
[12:25:46] <skunkworks> heh - just came up
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[12:51:42] <Lcvette> quiet today
[12:52:55] -!- IchGucksLive has joined #linuxcnc
[12:52:59] <IchGucksLive> hi all
[12:53:28] <IchGucksLive> so im off duty for today at this age and this temps outside a pain
[12:54:15] <IchGucksLive> gloops, france wins messi OUT
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[12:56:12] <IchGucksLive> diverdude, still online
[12:58:27] <diverdude> IchGucksLive: yes
[12:59:08] <IchGucksLive> diverdude, with CAM i mean the software that generates the G-code out of the part/drawing/3dmodell
[12:59:16] <IchGucksLive> diverdude, not a webcam
[13:00:44] <diverdude> IchGucksLive: ahh sorry :) I am not using any...I am writing my own python code
[13:01:28] <IchGucksLive> diverdude, what parts are you making
[13:01:52] <IchGucksLive> or expect to make as python is involved
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[13:03:30] <diverdude> IchGucksLive: i am moving a camera around in the XY plane and autofocusing in the Z plane
[13:04:00] <IchGucksLive> ah ok for astronomics or ...
[13:04:36] <IchGucksLive> i got a C16 around for imaging stars and nebulars
[13:04:47] <diverdude> IchGucksLive: no its actually for microscopic use
[13:05:05] <IchGucksLive> the complete other way
[13:05:15] <diverdude> yes :)
[13:05:39] <IchGucksLive> so precicion is best repedatly also
[13:05:48] <diverdude> yes exactly
[13:06:01] <diverdude> and my table is not the best quality
[13:06:08] <diverdude> but i hope it will work
[13:07:13] <IchGucksLive> as there is no workforce cheep Ballscrew SFU1204 and 2Nm Stepper system 36V on a TB6560
[13:07:33] <IchGucksLive> timy and good
[13:08:03] <IchGucksLive> better a 542t on 36V microstepping if needed
[13:08:24] <IchGucksLive> diverdude, http://heimwerkermarkt-tretter.de
[13:08:43] <diverdude> IchGucksLive: is this yours?
[13:09:05] <IchGucksLive> yes
[13:09:19] <IchGucksLive> http://heimwerkermarkt-tretter.de
[13:09:35] <IchGucksLive> http://heimwerkermarkt-tretter.de
[13:09:52] <IchGucksLive> http://heimwerkermarkt-tretter.de
[13:10:29] <diverdude> impressive
[13:10:43] <diverdude> looks very tidy
[13:10:49] <IchGucksLive> for all mashines the equal elektronics
[13:11:15] <diverdude> what are you using it for
[13:11:16] <IchGucksLive> tidy is the small tb6560 mashines 30x30x30cm all included
[13:11:35] <IchGucksLive> diverdude, im building mashines for education
[13:11:47] <IchGucksLive> diverdude, around 80-100 a year
[13:12:26] <IchGucksLive> diverdude, http://tv-profi-gmbh.de
[13:12:44] <diverdude> oh wauw... I think I should have ordred a machine from you then instead
[13:12:49] <IchGucksLive> diverdude, if you put the 1204 in there you got a tiny system
[13:13:05] <IchGucksLive> diverdude, i do not sell
[13:13:06] <diverdude> yes indeed
[13:13:14] <diverdude> oh ok
[13:14:13] <IchGucksLive> diverdude, the tiny mashine running here https://www.youtube.com
[13:14:25] <IchGucksLive> diverdude, and also the lectronics in full view
[13:18:59] <IchGucksLive> diverdude, did you take a look at the video
[13:20:39] <diverdude> yes i am watching it now
[13:21:26] <diverdude> its quite neat
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[13:22:02] <IchGucksLive> its a 0,01mm system at 2400mm/min
[13:22:24] <IchGucksLive> workarea 175x175x65
[13:23:49] <Roguish> Ich's : very nice electrical boxes....
[13:23:50] <diverdude> when you say 0.01mm system, do you mean resolution then?
[13:24:03] <IchGucksLive> yes
[13:24:18] <IchGucksLive> diverdude, but i go only halfstepping
[13:24:29] <IchGucksLive> so there is more to be if you need
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[13:24:48] <IchGucksLive> diverdude, with only a dip switch change
[13:25:28] <IchGucksLive> Roedy, thanks if you make mass you go simple and easy
[13:25:52] <IchGucksLive> Roguish, thanks if you make mass you go simple and easy
[13:26:04] <diverdude> i see
[13:26:23] <Roguish> very efficient, cost effective
[13:26:36] <IchGucksLive> diverdude, with 800 insted of 400 you are at 0,005
[13:26:51] <IchGucksLive> diverdude, at 1600 0,
[13:27:03] <IchGucksLive> diverdude, at 1600 0,0025
[13:27:23] <IchGucksLive> diverdude, the 542 go up to 32 *200
[13:27:57] <IchGucksLive> diverdude, this will exite the C/ precision on Ballscrews
[13:28:01] <IchGucksLive> c/
[13:28:04] <IchGucksLive> c7
[13:28:09] <IchGucksLive> LOL
[13:28:28] <IchGucksLive> Roguish, cost is always my problem
[13:28:47] <IchGucksLive> Roguish, if you get 2500Euros and want 12CNC
[13:29:19] <IchGucksLive> Roguish, ofcause with wirechain
[13:30:36] <IchGucksLive> diverdude, the complete electronics on Tiny is 104Euros
[13:30:54] <IchGucksLive> including Board Cable PSU and Steppers
[13:31:31] <IchGucksLive> 185oz the 210oz ads 10 euros
[13:32:25] <IchGucksLive> but then you need to extend the Z spindle as 76mm motors will colide
[13:34:59] <IchGucksLive> im off Have a nice sutorday watering the Garden GN8
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[13:41:04] <tjb1> 94 here :/
[13:48:11] <gloops> hope you got all that diverdude
[13:49:02] <diverdude> gloops: well.... yeah....but I have to keep working on the machine I have for now
[13:49:11] <gloops> heh
[13:51:36] <diverdude> gloops: right now i am battling with mostly autofocus implementation of camera+ z axis
[13:52:08] <gloops> whats not working with it?
[13:53:09] <gloops> the z obviously wants to be slower than the speed the camera can focus
[13:53:34] <gloops> but cameras can focus pretty fast - like there is an auto tracking mode
[13:54:25] <diverdude> gloops: well...i am just working with the api for the camera and finding a suitable metric for blurriness of the image and find a good scheme for moving z in the right direction and such
[13:54:40] <gloops> so you are going to select a focus point on the camera - set tracking mode, and you can move the z up and down as you want, the camera will remain focused on that point
[13:55:05] <diverdude> gloops: there is no built in autofocus on the camera
[13:55:15] <diverdude> gloops: i am implementing that part myself
[13:55:31] <gloops> no autofocus?
[13:55:43] <gloops> i didnt know anybody didnt have AF these days
[13:56:28] <diverdude> gloops: well on microscopic lenses there is not really so many lenses w. autofocus
[13:56:28] <gloops> so, how are you focusing then?
[13:57:01] <gloops> is this a standard 35mm macro lens?
[13:57:10] <diverdude> gloops: no
[13:57:27] <diverdude> gloops: it has no moving parts
[13:57:51] <gloops> so you move the camera to focus
[13:57:59] <diverdude> exactly
[13:58:01] <gloops> or is it electronic?
[13:58:10] <gloops> ahh
[13:58:22] <diverdude> i move camera up and down until i hit the spot.
[13:58:36] <diverdude> field of depth is only about 100mu
[13:59:08] <gloops> could make for pretty dull vids you know lol
[13:59:32] <diverdude> hehe what do you mean? :)
[13:59:42] <gloops> you are making video or stills?
[13:59:46] <diverdude> stills
[13:59:51] <gloops> ahh
[13:59:55] <gloops> oh thats ok then
[14:00:23] <diverdude> there is no need to make a video....i just need to grab an image when i have moved my axis
[14:01:08] <gloops> so you want fine z control
[14:01:53] <gloops> if you want an in focus view of a 3d object, with such shallow dof, you need to stack
[14:02:28] <diverdude> gloops: what do you mean by stacking?
[14:02:38] <gloops> stack the images
[14:03:08] <gloops> so we focus on the very top of the object, take a shot
[14:03:24] <gloops> move down until the next layer is in focus - take a shot
[14:03:33] <gloops> and so on until we reach the bottom
[14:03:38] <diverdude> gloops: ahh yes ok.
[14:03:52] <diverdude> gloops: and then look at each slice independently
[14:03:58] <gloops> no
[14:04:10] <gloops> then we stack the lot into one image
[14:04:13] <diverdude> gloops: or somehow combine it
[14:04:16] <gloops> the OOF is deleted
[14:04:19] <gloops> yes
[14:04:27] <diverdude> how is it combined?
[14:04:51] <gloops> there is software to this automatically, or you do it manually in gimp or photoshop
[14:05:08] <diverdude> gloops: i wonder what technique this software is using
[14:05:21] <gloops> place one image in each layer in photoshop
[14:05:41] <tjb1> Whats the best way to put multiple small wires into a terminal block? Twist and put a fork terminal on it?
[14:05:57] <diverdude> gloops: yes but somehow all those layers are combined and only the in-focus parts are kept
[14:06:26] <gloops> diverdude the software recognises sharpness and masks out the rest in each image
[14:06:35] <gloops> youre left with a combined all sharp image
[14:06:49] <gloops> or you do that yourself, manually in photoshop
[14:07:10] <gloops> a bit time consuming but can bring staggering results
[14:09:05] <diverdude> gloops: yeah...but it must be a special algorithm that somehow picks out all in-focus areas and combines them
[14:09:44] <gloops> https://digital-photography-school.com
[14:10:11] <gloops> you better start reading on this diverdude, you wont make good macro works if you dont know about it
[14:11:24] <gloops> oh that page needs login
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[14:11:57] <gloops> https://photographylife.com
[14:12:16] <diverdude> gloops: thats interesting....thanks for the tip
[14:13:06] <gloops> i used to be a keen amateur, not got time much these days
[14:13:56] <diverdude> gloops: hehehe :) yeah looks like some really interesting thing can come from focus stacking
[14:15:11] <gloops> thinking about it, you could also control bellows with a stepper motor
[14:16:46] <diverdude> gloops: what is bellows?
[14:17:01] <diverdude> oh
[14:17:04] <gloops> lol
[14:17:08] <diverdude> change of topic hehe
[14:17:18] <gloops> no same topic
[14:17:42] <diverdude> why would a bellow be interesting in this context?
[14:18:34] <diverdude> maybe its just my english which is not so good :) I am thinking bellows for the fireplace hehe
[14:19:10] <gloops> https://upload.wikimedia.org
[14:19:29] <gloops> with bellows you can adjust focus
[14:19:57] <gloops> not by moving the camera, but by moving the lens in relation to the focal plane
[14:20:13] <JT-Shop> Roguish: we are under a heat advisory but only showing 93°F as the high but heat index of 106°F
[14:21:21] <fragalot> hi
[14:21:34] <diverdude> gloops: right.....but will that not have the same effect?
[14:21:35] <tjb1> JT-Shop: where are you?
[14:21:49] <JT-Shop> south east Missouri
[14:22:01] <fragalot> diverdude: are you focus stacking? or what is the context here?
[14:22:07] <gloops> diverdude yes it will
[14:22:24] <gloops> have you ever used extension tubes diverdude?
[14:23:26] <tjb1> JT-Shop: 94 now near corning ny
[14:23:29] <fragalot> bellows (like gloops showed you) are actually a very good and common technique to do high depth of field macro shots (using focus stacking)
[14:23:31] <diverdude> gloops: yeah
[14:24:14] <diverdude> fragalot: ok but can't that same be done by just moving the camera?
[14:24:28] <fragalot> diverdude: not quite the same
[14:24:32] <gloops> one of my plans is to make a large format camera, thats if i get round to it before film is extinct
[14:25:05] <fragalot> diverdude: what you do is keep the LENS fixed, and move the camera
[14:25:15] <fragalot> that way your field of view does not change
[14:25:28] <fragalot> but the focus point does shift
[14:25:31] <tjb1> was going to see a race at watkins glen but its disgusting outside
[14:25:36] <diverdude> fragalot: yeah, but how is the effect different from moving the camera and lens together?
[14:26:42] <fragalot> diverdude: perspective change
[14:26:58] <fragalot> i'm not saying that moving both is a bad technique
[14:27:13] <fragalot> and i'm not saying that bellows or focus ring tweaking is better :-)
[14:27:23] <fragalot> they all have advantages & drawbacks
[14:27:30] <gloops> focus stacking with linux - http://www.barrygrussling.com
[14:27:59] <diverdude> fragalot: yeah...sorry its not to question what you are saying... I just find it interesting and want to understand
[14:28:33] <fragalot> diverdude: warning, the water gets deep with focus stacking :P dip your toe in and you're hooked!
[14:29:10] <diverdude> fragalot: haha :)
[14:29:13] <fragalot> diverdude: this is basically a comparison between focussing by ring, and focussing moving the camera: http://zerenesystems.com
[14:29:30] <fragalot> note how the perspective changes and the jar tips over.. that's what you get when moving the camera
[14:30:12] <diverdude> aha....so the tipped jar is when using focus ring?
[14:30:12] <gloops> what lens are you using anyway diverdude?
[14:30:29] <renesis> i am so confused right now
[14:30:49] <fragalot> diverdude: the tipped jar is when moving the camera, with the focus ring your perspective stays good, but it is difficult to move the focal point in tiny increments
[14:30:54] <gloops> renesis im guessing you voted for brexit too
[14:31:12] <renesis> gloops: i voted for that fail bitch hillary
[14:31:15] <renesis> :(
[14:31:30] <gloops> lol
[14:31:41] <gloops> what seems to be the problem?
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[14:31:56] <diverdude> gloops: this one: https://www.edmundoptics.com
[14:32:03] <renesis> ha, nothing i only read a few lines of scroll and i dont know anything about cameras
[14:32:27] <renesis> well, i know enough to be confused
[14:33:14] <gloops> fixed aperture f45...
[14:33:29] <diverdude> yes
[14:33:31] <fragalot> gloops: it's a microscope lens, not a DSLR lens...
[14:33:46] <diverdude> fragalot: its actually a telecentric lens
[14:33:56] <gloops> i cant say im familiar with it
[14:34:09] <fragalot> diverdude: my mistake. Didn't know those existed.. Interesting though!
[14:34:12] <gloops> but f45 raises a few problems
[14:34:23] <diverdude> gloops: what kind of problems?
[14:34:29] <gloops> not least motion/light
[14:34:37] <fragalot> diverdude: the "I can't shoot hand-held at night" kind
[14:34:40] <fragalot> which is irrelevant
[14:34:42] <fragalot> :P
[14:34:58] <diverdude> gloops: yeah i nned a lot of light...but i got that :)
[14:35:04] <gloops> you wont be getting a mosquitos eyes etc
[14:35:13] <gloops> in the field anyway lol
[14:35:23] <fragalot> somehow I don't think that lens is meant for field use
[14:35:25] <diverdude> gloops: oh, no haha true...im not planning to :)
[14:35:35] <gloops> also noise
[14:36:37] <diverdude> fragalot: telecentric lenses has a larger field of view...and they also have the cool effect that they remove perspective so that objects at different distance appears to be side by side
[14:36:42] <gloops> http://www.earthboundlight.com
[14:36:51] <diverdude> sorry not larger field of view....larger depth of field i mean
[14:36:58] <gloops> however at £1000 lets assume the lens compensates for that
[14:37:01] <fragalot> diverdude: yeah I'm reading up on them now, very interesting :D
[14:37:13] <fragalot> gloops: it's a very weird lens
[14:37:23] <gloops> yes unusual
[14:37:56] <fragalot> I kinda want one just to add to the collection now even though I have absolutely no use for one >.>
[14:37:59] <diverdude> i got a good quality normal microscope lens as well but it does not do as good images
[14:38:03] <gloops> have you had good results with the lens so far diverdude?
[14:38:28] <diverdude> gloops: yes i think its giving me good images
[14:38:34] <gloops> ok
[14:38:41] <diverdude> definitely usable
[14:39:06] <diverdude> i have a 4x, 6x, 8x and and different type of 10x lens
[14:39:35] <fragalot> i'm currently eyeing up a sony FE 100-400mm f/4.5-5.6 GM
[14:39:44] <diverdude> but right now i am struggeling with the camera API.....its quite poorly documented :(
[14:40:29] <fragalot> at least it's documented :P
[14:40:40] <fragalot> most API's ive been trying to use lately have missing or blank pages
[14:40:57] <diverdude> its horrible
[14:41:09] <diverdude> and the most simple stuff takes forever
[14:42:22] <diverdude> but focus stacking is definitely something i will look into
[14:42:40] <fragalot> yeah it can really improve macro shots if that's what you are going for
[14:42:47] <diverdude> because my subject is not always flat and sometimes i cannot get everything in focus....so focus stacking could help me there
[14:42:55] <fragalot> Exactly.
[14:43:01] <gloops> its a must
[14:43:09] <diverdude> so good point guys...thanks a lot!
[14:45:15] <diverdude> bbl
[14:45:15] <gloops> the big downside of fixed aperture is that you cant bracket each stack to hdr the amoeba ...
[14:46:28] <fragalot> would you really want to bracket using the aperture when doing focus stacked macro shots?
[14:46:58] <gloops> why not?
[14:47:45] <CaptHindsight> why are electric skateboards still >$1K?
[14:47:57] <fragalot> CaptHindsight: you can get a hoverboard for $120
[14:48:05] <fragalot> or a lil' scooter for $150
[14:48:16] <gloops> why were electronic skateboards ever $1000?
[14:48:32] <fragalot> batteries, marketing, or the lack thereof
[14:48:33] <CaptHindsight> yeah but an actual skateboard is min $800
[14:49:03] <fragalot> gloops: I'd figure the change in depth of field would mess you up when going to stack 'm?
[14:49:39] <fragalot> I'd probably prefer to change exposure time to bracket on a focus stack
[14:49:46] <fragalot> but,.. i do have zero experience with it :D
[14:50:34] <CaptHindsight> https://www.amazon.com
[14:51:27] <tjb1> CaptHindsight: make your own
[14:52:20] <CaptHindsight> decades ago i had motorized that we ran nitromethane in
[14:52:31] <CaptHindsight> >50 mph
[14:52:49] <SpeedEvil> Annoyingly, proper hoverboards are harder to make, very, very loud and really, really illegal.
[14:52:54] <SpeedEvil> (at least here)
[14:53:03] <tjb1> Ive seen enough of casey neistat run around NYC on a boosted board
[14:53:08] <tjb1> damn scary
[14:53:10] <CaptHindsight> >80 Kph
[14:53:12] <Rab> "aerospace-grade batteries" "machined metal" "composites instead of cheap plastic"
[14:53:19] <SpeedEvil> (100kW or so of fans, ...)
[14:54:55] <CaptHindsight> https://www.aliexpress.com
[14:55:01] <gloops> yes youre right fragalot, i am a bit rusty tbh
[14:55:48] <gloops> i need to draw something like this http://shaneturpin.com
[14:56:19] <fragalot> works of art, old cameras :D
[14:56:21] <gloops> however, i dont usually work like that, i start with a basic concept and work out the fitting as i build
[14:57:10] <gloops> so probably better making one by hand, or a prototype, then draw one in cad using the measurements
[14:57:53] <CaptHindsight> https://www.aliexpress.com
[14:57:54] <CaptHindsight> e2fc14c7-bcc2-4eee-8187-a52980d5c1e1-23&algo_pvid=e2fc14c7-bcc2-4eee-8187-a52980d5c1e1&transAbTest=ae803_1&priceBeautifyAB=0
[14:58:03] <CaptHindsight> my apologies
[14:58:33] <CaptHindsight> https://www.aliexpress.com
[15:02:26] <fragalot> https://www.youtube.com <- always interesting to learn WHY a certain tool geometry works better than another
[15:03:07] <SpeedEvil> CaptHindsight: one of those with a toothed outer would be fun
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[15:04:35] <CaptHindsight> I have some 6k rpm servos ~500W
[15:05:00] <fragalot> brushless RC motors would work well too
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[15:05:18] <fragalot> high power in tiny packages, and the motor/ESC combo's are quite cheap
[15:05:41] <fragalot> CaptHindsight: https://odriverobotics.com <= :P
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[15:09:04] <CaptHindsight> 5K RPM servo should get me to 90kph
[15:09:28] <gloops> will your trainer sole stop you at that speed?
[15:09:39] <CaptHindsight> now i need to get my bones softer again
[15:10:14] <CaptHindsight> regenerative breaking
[15:10:59] <fragalot> of your bones?
[15:11:44] <CaptHindsight> what we started with back then http://wackyboards.blogspot.com
[15:13:01] <CaptHindsight> if you break your bones >40 you have to regenerate them
[15:13:30] <gloops> may as well not bother
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[15:14:25] <CaptHindsight> I'd need an ironman suit now
[15:15:14] <gloops> zorbing could be the answer
[15:15:16] <Rab> Ditto...I've still got my awesome banana board, but I'm afraid to get on it now.
[15:15:20] <gloops> or is it xorbing
[15:16:11] <CaptHindsight> my friends started breaking bones in their 20's just hoping on for a few minutes
[15:16:36] <CaptHindsight> noithing like having to explain to work why you have a cast for 4 weeks
[15:18:03] <fragalot> CaptHindsight: that is private information
[15:19:05] <CaptHindsight> best reasons, sex, ghosts, defending against terrorists
[15:20:57] <gloops> Uru2 Por1
[15:22:22] <gloops> France crushed Argentina earlier, i think France will be the team to beat
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[16:50:02] <gloops> UK to develop plans for its own satellite system if EU’s restricts access to Galileo https://www.express.co.uk …
[17:12:33] <andypugh> gloops: Surely we just ask to keep out share of the constellation :-)
[17:12:42] <Lcvette> anyone in here good with electronics and correct board building?
[17:12:49] <Lcvette> circuit
[17:13:28] <Lcvette> I'm working on a diy wo probe
[17:13:38] <Lcvette> wireless*
[17:13:43] <Lcvette> project
[17:13:49] <Lcvette> http://imgur.com
[17:14:11] <Lcvette> http://imgur.com
[17:14:31] <Lcvette> never done anything like this before
[17:14:39] <Lcvette> so learning as i go
[17:14:45] <andypugh> Tracks seem thinner than necessary
[17:14:57] <andypugh> What PCB software are you using?
[17:15:14] <Lcvette> one i found from watching YouTube
[17:15:18] <Lcvette> easyeda
[17:15:23] <Lcvette> online
[17:15:30] <andypugh> OK, never heard of it :-)
[17:15:43] <andypugh> Does it do ground planes?
[17:16:13] <Lcvette> maybe?
[17:17:41] <Lcvette> I've never designed or built a circuit board before
[17:17:47] <Lcvette> so..
[17:18:33] <Lcvette> i priced together information i find on google
[17:18:38] <Lcvette> pieced
[17:19:00] <Lcvette> to make an ir circuit
[17:19:19] <Lcvette> with battery charging circuit
[17:20:08] <Lcvette> for a snall 3.7v lithium battery pack
[17:20:17] <andypugh> How are you going to make it?
[17:20:48] <Lcvette> make the circuit board?
[17:20:57] <andypugh> Yes
[17:21:21] <andypugh> (Seeedstudio is pretty cheap, I use them a fair bit)
[17:21:27] <Lcvette> easyeda has an online sourcing thingy
[17:21:34] <andypugh> Ah, OK.
[17:21:42] <Lcvette> their cheap
[17:22:15] <Lcvette> but if like to have them made with the components on them so I'll probably have some made in China i guess
[17:22:49] <andypugh> Seeed (three ees) will do 10 boards for $5
[17:22:50] <Lcvette> anyone interested in a group diy projects?
[17:23:05] <Lcvette> :)
[17:23:59] <andypugh> Or PCBAstore will put 300 components on a board for £47 per board, including £40 of components.
[17:24:46] <andypugh> Any of them should be able to make that board. I was going to suggest fatter tracks if you were going to DIY it.
[17:26:24] <Lcvette> ok
[17:26:39] <Lcvette> I'm not sure if the circuitry is good
[17:27:07] <Lcvette> it's best guess on my part
[17:27:11] <Lcvette> lol
[17:28:06] <Lcvette> I'm still trying to lab how to use the test functionality in the online software
[17:28:13] <Lcvette> learn
[17:30:01] <Lcvette> need to make the receiver still to
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[17:51:02] <pcw_home> Lcvette A thought I had about the FF1 error in the drives is that it may be that there is a significant delay from step to simulated encoder output (especially if the simulated encoder output is done in software)
[17:52:40] <pcw_home> that is at 100% velocity feed forward in the drives and ~12IPS your ~8 mill following error represents ~600 usec
[17:53:44] <pcw_home> that may just be a drive characteristic (and make them quite hard to tune for closed loop operation)
[17:54:51] <Deejay> gn8
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[18:00:51] <pcw_home> so it may be better to just run them open loop (and complain to Mesa about why step/dir doesn't not support homing to index even though the firmware does)
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[18:16:47] <Lcvette> pcw_home: I'm not complaining about mesa at all
[18:16:58] <Lcvette> i know the issue is in the drives
[18:17:13] <Lcvette> is evident
[18:17:46] <Lcvette> i think your product and support is excellent
[18:19:16] <Lcvette> i did try and research how to setup the hal to read the feedback from the encoder like you mentioned but i got lost in the reading
[18:19:32] <Lcvette> i did learn a few more tidbits along the way though
[18:20:34] <Lcvette> to the contrary of complaining, o give you alot of credit on Instagram and my forum thread for the help I've received
[18:21:09] <Lcvette> if be running open loop blind with massive following error had you not helped me
[18:21:15] <Lcvette> I'm grateful!
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[18:30:08] <pcw_home> What I'm saying is that you may be OK with open loop (if the following error is due to a fixed delay and is equivalent between axis, it really doesn't matter
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[18:32:16] <Lcvette> pcw_home: lookng over the diagram I'm not sure how to interpret if the encoder feedback is software or not, i see it goes through an error counter and then there's a divider, but mine is set at 1x for no dividing and true counting. then it has to the controller
[18:32:43] <Lcvette> ah i see
[18:32:53] <pcw_home> yeah no real way to know except add a real encoder to the ballscrew
[18:33:30] <Lcvette> i don't see i could split the encoder signal before it enters the drive?
[18:33:40] <Lcvette> suppose*
[18:34:54] <pcw_home> its possible but may be bad for noise immunity and a cable nightmare
[18:36:58] <Lcvette> so if its a delay, does that mean i should set the gain back down?
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[18:38:44] <infornography> ello
[18:41:16] <infornography> i'm looking at machines to run linuxcnc, for a router table , 3 axis and a spindle, step motors.
[18:41:22] <pcw_home> I mainly means that closing the externally loop is not going to work very well
[18:41:29] <pcw_home> It
[18:43:04] <Lcvette> ok
[18:43:06] <infornography> an advice on machines to avoid, I've been looking at machines with a parallel port off craigslist
[18:43:21] <infornography> *any
[18:44:36] <Lcvette> computer?
[18:45:34] <infornography> that's what I'm shopping for
[18:46:09] <Lcvette> for software stepping?
[18:47:29] <Lcvette> pcw_home: does that mean it's not worth further looking into and trying your other thought on the low bandwidth feedback method?
[18:50:41] <infornography> There is nothing to drive the motors yet, I'm guessing software stepping. Unless there is another method that is better?
[18:51:05] <Lcvette> Mesa hardware is certainly better
[18:52:16] <Lcvette> smoother motion, more inputs and outputs, higher speeds and less fussy about the computer you use
[18:52:49] <infornography> I will look into that
[18:52:55] <infornography> thanks
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[18:54:38] <Lcvette> for steppers, 5i25/7i76 plug and go kit is terrific
[19:01:41] <pcw_mesa> Lcvette: only if homing to index is needed
[19:03:04] <Lcvette> if like to have that function
[19:03:09] <Lcvette> I'd
[19:03:09] <pcw_mesa> I really should arrange to get homing to index on stepgen supported, only needs 1 pin per axis
[19:04:02] <Lcvette> yeah?
[19:04:41] <Lcvette> must be a big job if guess
[19:04:51] <Lcvette> I'd
[19:05:07] <Lcvette> can't even imagine. lol
[19:05:14] <pcw_mesa> yeah it works like encoder homing to index but latches the current stepcount instead of encoder count
[19:05:30] <pcw_mesa> (on index detection)
[19:05:39] <Lcvette> ah
[19:08:23] <Lcvette> is the low bandwidth config you were referring to a major hal overhaul?
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[19:10:43] <pcw_mesa> not terribly bad, you add a second PID component for the slow encoder feedback (and the slow encoder feedback PID output is fed into the primary PID bias input)
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[19:12:30] <pcw_mesa> It will remove the following error at speed, but unfortunately I don't think it will work with homing to index
[19:12:41] <Lcvette> oh
[19:13:02] <pcw_mesa> because the stepgen is not aware of the index
[19:13:41] <pcw_mesa> it wil work if all feedback is via the encoder but that has other issues with those drives
[19:14:43] <Lcvette> oh
[19:15:13] <Lcvette> I'm confused
[19:15:48] <pcw_mesa> so best bet is to get stepgen index support
[19:15:53] <Lcvette> i was wanting to try feedback that way via the encoder
[19:16:05] <Lcvette> ok
[19:17:24] <pcw_mesa> I would just finish you machine, home to limits now and start making chips and worry about homing to index later
[19:19:08] <Lcvette> so 0.003" following error was at Max rapid speed. in open loop but at lower does it was less, like.
[19:19:33] <Lcvette> 0.0005"
[19:20:00] <Lcvette> waiting on my bearing blocks
[19:21:27] <pcw_mesa> right so as I mentioned, the following error may only represent delay in the encoder emulation from the drive
[19:22:44] <pcw_mesa> if you have .003: FE at 12 IPS thats only a 250 usec delay
[19:23:03] <Lcvette> would that not shift the graph plot to the right completely?
[19:23:18] <pcw_mesa> no
[19:23:55] <pcw_mesa> a fixed delay causes an error proportional to velocity
[19:24:44] <pcw_mesa> but if all drives have the same delay, it causes no path errors
[19:25:54] <Lcvette> i see
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[19:28:29] <pcw_mesa> Actually I think there's a way to check this
[19:28:53] <Lcvette> ok
[19:29:10] <Lcvette> hole?
[19:30:10] <pcw_mesa> if we think there's a 250 usec delay from step to feedback you could sample the encoder 250 usec later than the stepgen and check the (open loop) FE
[19:31:20] <pcw_mesa> bbl
[19:31:24] <Lcvette> ok
[19:31:44] <Lcvette> I'll need some clarification on that procedure i think
[19:31:50] <Lcvette> lol
[19:31:55] <Lcvette> later
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[19:48:47] <andypugh> This is nice. I don;t need it, but it’s nice. https://www.ebay.co.uk
[19:57:28] <XXCoder> pretty small
[20:02:17] <andypugh> Yes, it’s a mig watchmakers lathe
[20:02:23] <andypugh> (big)
[20:03:30] <andypugh> That particular one seems to have rather a good selection of the accessories. http://www.lathes.co.uk
[20:10:42] <XXCoder> interesting
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[20:56:48] <Lcvette> that's a sweet looking like lathe!
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[22:57:51] <Tecan> https://www.thingiverse.com hotcup of water some filament and spring mold
[22:58:50] <XXCoder> nice
[22:58:55] <XXCoder> how firm is it?
[22:59:21] <XXCoder> one step closer to purely printed rc car lol
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[23:21:53] <Tecan> i would assume it can be done with anykind of filament aswell so it could be really firm and durable
[23:22:19] <Tecan> nylon or abs might boil up nicely
[23:23:08] <Tecan> pla is what they used but its prone to warping with sunlight even
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[23:29:32] <Tecan> https://www.ebay.ca << is the metal block with all the bolts in it for holding parts ?
[23:29:56] <Tecan> and does the big handle on it squish it down evenly ?
[23:32:14] <XXCoder> in least it dont say mill lathe 3d printing lol
[23:32:57] <Tecan> oh its a quick change tool post
[23:33:16] <XXCoder> ah the 4 bolt and hand;e
[23:33:30] <XXCoder> *8
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[23:55:34] <Tom_L> log
[23:55:34] <c-log> Tom_L: Today's Log http://tom-itx.no-ip.biz:81