#linuxcnc | Logs for 2020-06-15
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[00:11:10] <perry_j1987> hmm swgcr is on side of one of these holders
[00:11:16] <perry_j1987> not finding anything on google about that
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[02:30:44] <Deejay> moin
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[04:08:09] <pink_vampire> hi
[04:08:36] <XXCoder> yo
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[04:21:08] <pink_vampire> how are you
[04:21:30] <XXCoder> dizzy as usual heh
[04:21:32] <XXCoder> you
[04:24:42] <XXCoder> you?
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[06:02:33] <JT-Cave> morning
[06:04:52] <XXCoder> yo
[06:05:04] <XXCoder> soon I will go back to grindstone
[06:05:13] <XXCoder> hopefully I wint be too dizzy to.
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[07:16:13] <Tom_L> morning
[07:17:35] <JT-Cave> yo
[07:17:55] <XXCoder> yo
[08:22:25] <transhumanist> anyone able to point me to a delta type cnc that is built toward accuracy rather than speed?
[08:28:31] <JT-Cave> sounds like unobtainum to me
[08:29:09] <transhumanist> well with the design its a trade off between speed and accuracy isn't it
[08:32:28] <JT-Cave> I have seen some large accurate deltas if you have a few million dollars of spare change
[08:33:56] <transhumanist> you wouldnt have a link would you? Just trying to judge what it takes to get the accuracy from them, thanks
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[08:50:36] <JT-Cave> no, it was a video I saw years ago
[08:50:53] * JT-Cave wanders out to clean chicken poop
[08:51:39] <transhumanist> thanks JT-Cave
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[09:26:57] <Rab> transhumanist, https://www.youtube.com
[09:27:48] <Rab> The test in wood doesn't prove much, I thought the same person had done a test in aluminum but I don't see it. They seem to have dropped out of sight.
[09:30:17] <perry_j1987> mornign
[09:32:03] <perry_j1987> woke up grizzly said 60% off summer sale
[09:32:12] <perry_j1987> sadly not on the mills haha
[09:35:26] <Rab> transhumanist, I believe you were asking about a 4th axis for a Taig. I haven't used a Taig, but I noticed that somebody's selling a rotary stage commonly used for Sherline mills for what seems like a bargain price: https://www.ebay.com
[09:38:12] <Rab> Of course you still need to mount a chuck, or other workholding method. This one is built up for that purpose: https://www.ebay.com
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[09:49:11] <perry_j1987> when i bought my rotary i went for one of those belt driven ones with through hole chuck
[09:49:43] <perry_j1987> its been real nice being able to swap rod stock between lathe and mill without having to part off individual pieces first
[09:49:56] <perry_j1987> saves a lot of waste
[09:50:03] <Rab> perry_j1987, that sounds pretty cool.
[09:51:24] <Rab> I'd like something like that for my manual mill. Unfortunately the rotary table I have now won't mount vertically (for horizontal axis).
[09:51:44] <perry_j1987> https://amzn.to this is the one
[09:52:12] <Rab> And I expect to use it even less frequently than the rotary table, so I'm brainstorming ways to do it on the cheap. ;)
[09:54:10] <perry_j1987> ah you want a table?
[09:55:37] <Rab> JUst a 4th axis. Or an indexer, but if it's a motorized axis I could use it on the CNC too.
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[09:58:14] <perry_j1987> what type of work are you holding
[09:58:21] <perry_j1987> bar stock, rod stock or random pieces
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[10:00:29] <Rab> perry_j1987, primarily rod stock I suppose.
[10:01:11] <perry_j1987> im not one to spend copious amounts of money and this is the rotary axis solution that looked best of all worlds for me
[10:01:25] <perry_j1987> i looked into those worm gear things too
[10:01:39] <perry_j1987> but alot of work and money spent for no through hole capability
[10:02:20] <Rab> perry_j1987, sure. The one you posted looks pretty good. No issues with rigidity?
[10:02:42] <perry_j1987> havnt had any issues yet
[10:03:12] <perry_j1987> if you get one i can share my setup for it with you
[10:03:41] <perry_j1987> was a bear to figure out how to calibate when i was super new lol
[10:17:31] <perry_j1987> Rab the only thing i wish fusion 360 did more with 4th axis cam
[10:17:53] <perry_j1987> it would be fun to have ability to do eccentric work with the 4th axis and such
[10:19:21] <transhumanist> thank you very much RAb!
[10:19:30] <transhumanist> err Rab
[10:21:43] <Rab> transhumanist, take a look at perry_j1987's link above, too.
[10:25:07] <perry_j1987> finally ordering some more tool holders for this qctp
[10:25:20] <perry_j1987> took a year but finally got tired of swapping some of the tools haha
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[10:28:56] <transhumanist> thanks perry_j1987
[10:29:02] <perry_j1987> np
[10:30:16] <transhumanist> anyone of you guys seen the multi million dollar high accurace delta , I am very curios what they did to make it so accurate
[10:30:31] <transhumanist> I cant seem to find the video
[10:30:48] <transhumanist> delta type8
[10:30:54] <transhumanist> delta type*
[10:31:11] <gregcnc> metrom?
[10:31:30] <transhumanist> is that what its called? I dont know will look though
[10:32:01] <perry_j1987> hmm whats this tool holder used for SWGCR
[10:33:30] <gregcnc> trigon inserts
[10:35:03] <perry_j1987> left face is 90 degree to the shank
[10:35:19] <perry_j1987> front face is 5 to 7 degree it appears
[10:37:33] <gregcnc> the G in the callout
[10:50:22] <Rab> transhumanist, certainly some of that money must have gone into the tool platform bearings, since any play will be magnified by the delta geometry.
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[11:08:49] <transhumanist> Ya, I am just hoping to find a good video of it
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[11:44:52] <gregcnc> commercial machine?
[12:15:55] <jymmmm> These hilink ac/dc module are pretty good, especially for those that need 5V without needing a USB port... $3 https://www.youtube.com
[12:16:25] <transhumanist> ]
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[12:32:59] <Rab> andypugh, not sure if you're around, but I updated my system to use current 4.14.174-rtai packages from http://www.linuxcnc.org The module load/unload test still hangs my system: 5 runs hung at passes 777, 49, 917, 2375, and 813, which seems similar to the spread of the last test.
[12:35:20] <Rab> I want to emphasize that I'm not having any problem in normal operation, and that this is not a request for any type of support, just an effort to provide some field data.
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[12:37:32] <Rab> But in related news: since I updated the packages, my Intel onboard video is correctly identified and my display comes up at the correct 1920x1200. So I couldn't be more pleased. ;)
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[13:10:14] <norias> howdy
[13:10:28] <Thorhian> Its been a while norias, how's it going?
[13:10:43] <norias> good, you?
[13:10:57] <norias> I just discovered the Haas CL-1 ... man is that giving me ideas
[13:11:56] <Thorhian> Pretty good, are you familiar with steel alloys? I'm trying to choose/find steel for the structure of my mill.
[13:12:29] <norias> hmmm
[13:12:36] <Thorhian> I'm trying to pick between A36 (cheap and easy to find in various shapes and sizes) and 1018.
[13:12:39] <norias> steel just seems like a bad idea
[13:12:50] <norias> a36 and 1018 are pretty much the same thing
[13:13:00] <norias> look at the chemical composition
[13:13:07] <norias> the ranges overlap
[13:13:33] <norias> a36 is the structural variety, and 1018 is more what's sold to machine shops
[13:13:41] <Thorhian> It's better than aluminum norias, and I'm also using epoxy granite to fill the Z axis column (a rectangular tube).
[13:13:58] <norias> well, ok, now that's fair
[13:14:47] <Thorhian> I can't cast a whole bunch of iron and then machine it into shape lol. I don't have that kind of equipment/skill lol
[13:15:07] <norias> yeah
[13:15:09] <norias> dude
[13:15:24] <norias> i should make a little hobby swiss lathe
[13:15:28] <norias> haha
[13:15:38] <norias> slay the dragon
[13:15:45] <Thorhian> Lol
[13:16:03] <norias> i'm "consulting" for this startup
[13:16:07] <Thorhian> Whats the difference between a normal "metal" lathe and a swiss lathe?
[13:16:23] <norias> uh, generally ... roughly ...
[13:16:29] <norias> the way the material is held
[13:16:32] <norias> and the tooling
[13:16:43] <norias> basically the headstock moves
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[13:17:06] <norias> and some of the tools only move in the X axis
[13:17:29] <norias> so, this startup
[13:17:33] <Thorhian> Oh wait, they can move the stock that's being worked on right?
[13:17:38] <norias> yeah
[13:18:01] <norias> they are only ever bar fed
[13:18:15] <norias> and usually high production, precision stuff
[13:18:22] <Thorhian> Yeah, I've seen a big one on grimsmo's youtube channel.
[13:18:31] <norias> because you can have >1 tool in contact with the part at once
[13:18:53] <norias> automating milling is this big thing
[13:19:14] <norias> trying to get good automation for 1 part (i.e. prototyping)
[13:19:23] <norias> but i kinda want to go go at turning
[13:19:29] <norias> since i feel like no one is looking at it
[13:19:39] <norias> and from a certain perspective, it's an easier problem
[13:21:32] <norias> i kinda wonder if inverting 100% of the thinking makes sense
[13:21:41] <norias> do prototyping on a cnc swiss
[13:22:24] <Thorhian> You would need one first lol
[13:22:42] <Thorhian> Also, this is the Tornos Machine that I have seen on youtube https://youtu.be
[13:24:40] <norias> yep, looks right to me
[13:24:43] <norias> i'm saying...
[13:24:47] <norias> why not make one?
[13:26:02] <Thorhian> I don't know, I think that is up to you, and your wallet lol
[13:26:35] <norias> could be <= cost of a mill
[13:26:43] <norias> all the parts are small
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[13:27:13] <Thorhian> And how big/how good of tolerances you want.
[13:27:33] <norias> bar sizes don't get that big
[13:27:49] <norias> so, let's say you did a dedicated machine just for 6061 aluminum
[13:27:59] <Thorhian> I'm guessing swiss lathes don't work do larger stock sizes?
[13:29:43] <norias> 1-2" max
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[13:30:39] <Thorhian> 1 to 2 inches is still pretty beefy for a system like that IMO lol
[13:31:13] <norias> oh, so, i have a weird question
[13:31:18] <norias> for you, personally
[13:31:20] <norias> say...
[13:31:32] <norias> someone had a CNC Mill with cameras all throughout it
[13:31:46] <norias> and some system to load stock and unload parts
[13:32:03] <norias> that, given standard stock sizes and tooling
[13:32:23] <norias> you could write your own programs for remotely
[13:32:23] <norias> and submit them to be run
[13:32:24] <norias> is that something you would pay for?
[13:33:58] <Thorhian> If some of measurement work required for repeatability could be automated, I would be interested (if I could actually pay for it and actually use it for a business).
[13:34:26] <Thorhian> I've already seen some work on using computer vision to read analog measurement tools using openCV on LinuxCNC and a Haimer probe, so I bet it would be doable.
[13:35:45] <Thorhian> I know pallet changers exist, but I haven't seen robots that setup pallets for the pallet changer robot before.
[13:40:36] <Loetmichel> Ouch... just filled the convertible up the second time after buying it... MAN now i know why it was so cheap... the 250000km (155kmiles) on the odo show: 11.5l/100km (20mpg) E10 AND half a liter oil to refill after only 485km (300mi) driven... :-( -> https://www.spritmonitor.de
[13:47:38] <Thorhian> Oh boy
[13:49:37] <norias> eh. analog tools
[13:50:03] <norias> i feel like the feature set on turned parts is less
[13:50:22] <norias> i think it would make measurement simpler
[13:52:16] <norias> my intuition is that there's something interesting to be done with air gaging and machine learning
[14:15:47] <veegee> Our transformer is a 600V - 208Y120. If I want to power several 240V single phase machines, how important is it to balance the phases on industrial utility power?
[14:16:22] <veegee> Like if I have only two machines and using only two legs, do I have to worry about having that third leg not being used?
[14:16:29] <Loetmichel> no
[14:16:39] <Loetmichel> but if you have three dont put 2 on the same phase
[14:16:47] <Loetmichel> that could overload the neutral
[14:16:58] <veegee> Well yeah, the goal is to balanace as much as possible
[14:17:21] <veegee> 208V is good enough for 240V machines right?
[14:17:28] <veegee> I know, stupid question, depends on the machine
[14:17:44] <Loetmichel> rule of thumb: if the current on neutral is smaller than the current on any single Phase you are good (usually
[14:17:46] <Loetmichel> )
[14:17:57] <Loetmichel> for some yes, for some no
[14:18:06] <veegee> I also have a 600V - 240V three phase transformer sitting unused. I guess I should hook that one up instead
[14:18:13] <veegee> for the 240V stuff anyway
[14:19:23] <veegee> I'm rewiring the entire unit. Getting rid of the ridiculous 14 AWG wire and replacing with at least 10 AWG for 30A everywhere
[14:19:57] <veegee> 120V/15A is so ridiculously stupid in any workshop setting
[14:21:09] <veegee> Any tips on muffling the sound of the air blast from my compressor air tank auto drain?
[14:21:30] <veegee> I set it to 1 second burst every 10 minutes and it startles me every time
[14:24:47] <SpeedEvil> veegee: put a hose on it.
[14:25:21] <Loetmichel> i would make a small box filled with stainless steel wool and a bottom made of chicken wire
[14:25:27] <Loetmichel> and feed the exhaust into the top
[14:25:36] <Loetmichel> of course it needs to hover above ground a bit
[14:25:47] <veegee> Loetmichel excellent, thanks!
[14:26:24] <Loetmichel> important is that the air has room to expand before it leaves the box
[14:26:50] <Loetmichel> so ideally its a pyramid with the air intake at the top
[14:27:03] <Loetmichel> (a box works just the same though)
[14:27:26] <SpeedEvil> If you have absolutely nothing on it, a sponge brass or whatever vent plug will make it lots quieter
[14:27:59] <Loetmichel> sponge brass isnt ideal if its a water drain
[14:28:05] <Loetmichel> it clogs to easily
[14:29:08] <veegee> Got it, thank you!
[14:29:22] <SpeedEvil> I've used 5mm aquarium tubing in the past with good results
[14:30:15] <veegee> I have plenty of hose
[14:30:20] <SpeedEvil> ID is so small that no pressure can get out at flow
[14:30:33] <SpeedEvil> ^high flow
[14:30:39] <veegee> Oh I get what you're doing
[14:30:52] <Tom_L> run a hose outside and you won't hear it
[14:30:59] <SpeedEvil> That too of course.
[14:31:10] <veegee> Yeah thought of that, but I don't want to run a hose along the floor
[14:31:24] <veegee> A muffler as Loetmichel suggested is perfect
[14:31:43] <Tom_L> if it's ferrous it will rust quickly
[14:32:05] <veegee> stainless steel
[14:32:28] <SpeedEvil> Stainles steel only rusts when it's most annoying
[14:33:03] <veegee> If it becomes a problem, I'll replace it with a non metal spongy material
[14:33:20] <Tom_L> mold
[14:33:26] <veegee> harmless to humans
[14:33:41] <veegee> (I studied mycology) ]
[14:33:45] <SpeedEvil> Also can you for example hook the drain valve and compressor to a light circuit?
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[15:19:50] <perry_j1987> hows it going
[15:21:43] <CaptHindsight> 1-2mm thread forming in soft steel, whats your most successful method?
[15:22:08] <CaptHindsight> inside threads
[15:26:13] <perry_j1987> so im getting sensor tripped while homing
[15:27:34] <Rab> CaptHindsight, I've had good luck roll tapping 2-56 in stainless, by hand. But I haven't done a lot of it.
[15:27:52] <Rab> Not quite 2mm, but close.
[15:29:48] <CaptHindsight> these are likely M2 x 0.40, yeah close
[15:33:11] <CaptHindsight> https://www.youtube.com
[15:34:52] <Rab> I like roll tapping for metals in general, but the process isn't too forgiving at small diameters.
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[15:36:23] <CaptHindsight> they do go down to M2
[15:36:30] <perry_j1987> does linuxcnc need epp or ecp mode for parallel port?
[15:37:00] <CaptHindsight> yes
[15:37:16] <Rab> If the hole is even slightly too small, the tap can break. Too large, and the thread doesn't fully form, which can result in cross-threading into that divot in the formed thread you can see in the video.
[15:37:20] <CaptHindsight> but you need a LPT card that is actually capable of doing so
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[15:38:31] <CaptHindsight> Rab: the holes would be properly drilled
[15:39:06] <Rab> So if I'm threading a hole which will be used with a bunch of different fasteners, carelessly inserted (e.g. some kind of shop tool), I'll cut tap instead.
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[15:40:55] <Rab> CaptHindsight, use a sharp tap and cutting oil, and find the exact hole size for a forming tap at your desired thread engagement: it's pretty far off from the cut tap chart.
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[15:42:34] <CaptHindsight> haven't had to do a bunch of them
[15:43:00] <CaptHindsight> I might design to avoid it
[15:43:03] <Rab> For 6-32 and over, I'll often just chuck the roll tap into a power screwdriver or cordless drill and shoot it in by hand. No chips, no need to back out. Occasionally I will break taps at 6-32, so it's a bad habit at that level.
[15:43:34] <CaptHindsight> yeah for protos that is what I do
[15:43:53] <Rab> They are much stronger than cut taps, having no flutes.
[15:44:10] <Rab> (Sometimes coolant channels)
[15:44:30] <CaptHindsight> but if I have to make 1,000's of parts with 4 holes in each
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[15:46:46] <CaptHindsight> https://images-na.ssl-images-amazon.com 7mm rail mounted to steel
[15:48:38] <CaptHindsight> in aluminum is easy, the steel screws self thread
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[15:58:11] <perry_j1987> cause im getting error when homing
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[15:58:37] <CaptHindsight> perry_j1987: what error?
[15:58:49] <perry_j1987> when i home it says sensor triggered
[15:59:05] <perry_j1987> or if i move an axis it keeps tripping it says
[15:59:06] <CaptHindsight> how does homing error relate to LPT mode?
[15:59:18] <perry_j1987> i just swapped the computer out to a new computer
[15:59:42] <perry_j1987> its BOB setup so was wondering if something with the lpt port mode was different than the previous computer
[15:59:46] <CaptHindsight> when you home is there a change of state on the home switch?
[16:00:05] <jymmmm> This lil PS is actually kinda cool... https://www.aliexpress.com
[16:00:44] <dirty_d> perry_j1987, sounds like an issue I had with incorrect homing setup
[16:01:04] <dirty_d> I didn;t have my offsets right so at the home position the switch was right on the edge of being tripped
[16:01:22] <jymmmm> I found a linux software someone wrote to interface to it
[16:01:28] <perry_j1987> i just copied the configs over from the old computer to the new one
[16:01:38] <dirty_d> mine worked until it didnt too
[16:02:00] <dirty_d> probably a change in temperature in humidity moved something a few thou and tripped the switch at the home position
[16:02:08] <dirty_d> or humidity*
[16:02:44] <Rab> perry_j1987, I use the diagnostic utility at the bottom of this page when I want to monitor or toggle parport line status outside LinuxCNC: http://yyao.ca
[16:03:27] <Loetmichel> jymmmm: missing a transformer though
[16:03:42] <Loetmichel> and its an SMPS, so probably not very "clean" power
[16:03:48] <jymmmm> Loetmichel: use any foxed PS you want for inout
[16:03:52] <jymmmm> fixed*
[16:04:06] <Loetmichel> you mean: input?
[16:04:11] <Loetmichel> yeah, possible
[16:04:44] <Loetmichel> but i meant: its only half the thing if it has no 110V60hz/230V50Hz input
[16:04:47] <jymmmm> Loetmichel: Has PC SW and App to control/program it
[16:04:51] <Loetmichel> so sure its cheap
[16:05:36] <Loetmichel> point i wanted to make is that while that thing certainly has its uses its not that good as a general lab supply
[16:05:52] <Loetmichel> a lab supply has to be "clean" and fast regulating IMHO
[16:06:07] <jymmmm> Loetmichel: IT's $20
[16:06:33] <Loetmichel> i may have high standards though because i do many audio things on my electronics workbench
[16:06:39] <Loetmichel> jymmmm: i know
[16:06:59] <andypugh> Thorhian: Probably too late. But all steels have exactly the same stiffness, and you wont be getting anywhere near the elastic limit of even the cheapest, so go for ease of welding, if you are welding, or price, or machinability.
[16:07:07] <Loetmichel> still $20 to much if you expected a clean output, fast regulating and an AC input
[16:07:37] <Loetmichel> s/and/or
[16:07:44] <jymmmm> Loetmichel: But, that it's programmable, could interface with arduino/EPS, and make a custom charger =)
[16:08:17] <Loetmichel> no, for being a charger it has to have some measuring inputs/balancing inputs
[16:08:38] <Loetmichel> it can make a crude NiCd/NiMh charger maybe
[16:08:47] <jymmmm> Loetmichel: have you ever seen a solar control woth balancing leads?
[16:08:52] <jymmmm> with*
[16:08:53] <Loetmichel> but any CC/CV PSU can do that
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[16:09:09] <jymmmm> Loetmichel: Not multi stage
[16:09:21] <jymmmm> (hands off)
[16:09:47] <Loetmichel> i have never seen ANY Lithium solar battery without BMS. not the point
[16:10:00] <Loetmichel> and you wont tell me that you want to charge your solar battery with 5A?
[16:10:07] <jymmmm> But BMS isn't lithium multi stage charging
[16:10:09] <Loetmichel> thats useless for that application
[16:10:21] <jymmmm> Nope, 10A =)
[16:10:40] <Loetmichel> still useless unless its a portable system
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[16:10:50] <Loetmichel> and not powering a house or RC
[16:10:52] <Loetmichel> RV
[16:11:22] <jymmmm> Loetmichel: I just need to charge the battery from mains within 6 hours, bonus for car too
[16:13:27] <jymmmm> Loetmichel: But they don't make a buck/boost higher than 5A
[16:15:27] <jymmmm> Loetmichel: And I do understand what you are saying about a "proper" bench PS =)
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[16:30:14] <jymmmm> Loetmichel: just a little something you don't care if you blow it up =)
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[16:51:24] <Deejay> gn8
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[17:23:13] <perry_j1987> ok in the shop now
[17:23:17] <perry_j1987> exact error i got probe tripped during homing motion
[17:28:26] <andypugh> That means that the prope input pin triggered during a homing motion.
[17:29:08] <andypugh> Do you have a probe? Is it wired?
[17:29:34] <andypugh> Did it trip during the homing motion? :-)
[17:29:44] <perry_j1987> the z probe? touch plate?
[17:29:57] <andypugh> You tell me, it’s your machine :-)
[17:30:15] <andypugh> Whatever is wired to motion.probe-in
[17:30:31] <perry_j1987> hahahahaha
[17:30:44] <perry_j1987> damn it fell off the cradle and was touching the bed
[17:30:45] <andypugh> The error means that the HAL pin motion.provbe-in changed state during the homing motion.
[17:30:47] <perry_j1987> ty haha
[17:31:10] <andypugh> The clue was in the error message, really.
[17:31:22] <perry_j1987> i was getting worried cause i had just swapped out computers with a new one and was thinking it was bigger issue than simple one
[17:31:46] <perry_j1987> i havnt used the probe in over a year so forgot i had the thing
[17:38:59] <perry_j1987> brb
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[18:17:55] <perry_j1987> there we go always fun making some quick cash selling on facebook marketplace lol
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[19:20:57] <pink_vampire> hi
[19:21:06] <pink_vampire> any lathe users?
[19:22:27] <andypugh> Yes
[19:22:41] <andypugh> don’t you have one?
[19:27:33] <JT-Cave> lol
[19:28:55] <Loetmichel> yes
[19:29:04] <Loetmichel> who hasnt?
[19:29:09] <Loetmichel> in this channel i mean
[19:29:11] <Loetmichel> :-)
[19:29:34] <Loetmichel> s/not/none
[19:30:01] <andypugh> A lot of people start (wrongly) with a mill, thinking that willl be more useful. And missing the fact that lathes are just more fun...
[19:30:22] <pink_vampire> yes I have one, but I want to get some tool holders,
[19:30:28] <Loetmichel> andypugh: a mill IS more usefull most of the time.
[19:30:31] <Loetmichel> until its not.
[19:30:49] <andypugh> (Consider the relative popularity of wooturning v freehand routing…)
[19:31:33] <andypugh> Yes, but for a hobby, lathes are somehoe more pleasant to work with.
[19:31:56] <andypugh> pink_vampire: tool holdrs for carbide?
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[19:32:45] * Loetmichel has two lathes. one medium sized benchtop one ("optimum D480") and a REALLY small C0 clone ;)
[19:32:48] <Loetmichel> that thing is funny
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[19:33:01] <pink_vampire> andypugh: yes, I want some nice kit
[19:33:08] <Loetmichel> https://www.youtube.com
[19:33:24] <Loetmichel> 7kg... you can literally transport it onehanded ;)
[19:34:08] <andypugh> Loetmichel: Yes, I had one. Kept it in a spare cupboard in the kitchen.
[19:34:27] <andypugh> Hmm. Drehschrank!
[19:35:15] <Loetmichel> (no, i have no oversized hands, that thing IS so small ;)
[19:35:37] <andypugh> pink_vampire: I would suggest holders for the WNMG inserts, as those have 6 edges per insert so work out more cost-effective.
[19:36:39] <pink_vampire> do you know any good kit for them?
[19:37:01] <andypugh> pink_vampire: Only in the UK
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[19:38:28] <pink_vampire> I need it for my small lathe
[19:39:09] <andypugh> I bought one of these in left and right recently: https://www.ebay.co.uk
[19:39:25] <andypugh> But that’s probably cheaper than you want, and bigger.
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[19:40:10] <andypugh> They are fine for my lathe, but for a little lathe you might want a smaller clamping system to get the tool overhanf less.
[19:40:38] <andypugh> (And those inserts are pretty poor, as you moght expect)
[19:40:52] <pink_vampire> something with 10mm - 1/2" shank
[19:42:48] <pink_vampire> I want to get something common, and get it as a set, because right now, I have some HSS stuff with 8 bolts tool post, and I want to start working with modern tools without having to grind them inside the house.
[19:43:38] <pink_vampire> andypugh: ^
[19:43:39] <andypugh> I can’t see any WNMG holders with a 12mm shank
[19:44:48] <Loetmichel> for a 10mm shank i would suggest CCMT inserts not WNMG. way to big
[19:45:38] <andypugh> Ah, well, if you are buying a present for the lathe…. How about the AA set here? http://www.createtool.com
[19:46:10] <andypugh> Loetmichel: Yes, I was concluding the same.
[19:46:53] <pink_vampire> maybe a piston type
[19:46:54] <andypugh> pink_vampire: What is the distance from the top of the compound slide to centre-line of the lathe?
[19:47:01] <Loetmichel> and get the ones made for alu
[19:47:05] <Loetmichel> not the steel ones
[19:47:27] <andypugh> pink_vampire: Multifix > wedge > piston
[19:47:30] <Loetmichel> they are sharper, which is good for finish on such a small machine thats not THAT rigid
[19:47:44] <pink_vampire> andypugh: I was joking
[19:48:23] <andypugh> I didn’t get the joke, any sort of QCTP will be a win.
[19:48:57] <andypugh> But the Multifix AA size might be too big for your lathe.
[19:49:52] <pink_vampire> I have 26 mm from the top of the compound to the top of the 8 bolts tool post
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[19:50:30] <andypugh> The important measure is top of the compound to the point of the tailstock centre
[19:50:49] <andypugh> (ie, to the spindle axis)
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[19:51:35] <perry_j1987> o/
[19:52:33] <perry_j1987> you use that formula for thread depth, multiply the pitch by .614 to get the thread depth?
[19:54:31] <pink_vampire> andypugh: I'm trying to measure it and to take a picture
[19:56:52] <pink_vampire> 10 mm
[19:57:11] <andypugh> ?
[19:57:14] <andypugh> 10mm?
[19:57:27] <pink_vampire> one sec I'm taking a pic
[19:59:42] <andypugh> I wonder if this pic is real? Looks like biggest + smallest multifix: https://i.ebayimg.com
[20:02:31] <pink_vampire> https://i.imgur.com
[20:02:54] <pink_vampire> AWWWWWWWWWW this is soooooooo cute!!!
[20:03:40] <andypugh> Here is the size AAA one: https://www.ebay.co.uk
[20:03:55] <andypugh> But it only seems to take 1/4” tools
[20:04:28] <andypugh> Your measurement seems to be from the bottom of the toolholder slot to the centre.
[20:04:31] <pink_vampire> this is the Aaa nit AA or A0
[20:04:40] <pink_vampire> correct
[20:04:50] <pink_vampire> do you want me to remove the tool post?
[20:05:15] <andypugh> Not much point. I think the answer is “not a lot”
[20:06:46] <andypugh> You need > 18mm to even think about the AA size multifix.
[20:07:14] <andypugh> The AAA might work, but then you can only use really tiny tools.
[20:07:24] <andypugh> Is the lathe CNC?
[20:07:30] <pink_vampire> 14.14.2mm
[20:07:56] <pink_vampire> 14.2**
[20:09:26] <andypugh> You could consider removing the swivelling slide.
[20:09:42] <andypugh> (Especially if it is CNC)
[20:09:44] <pink_vampire> https://i.imgur.com 14.2
[20:09:50] <pink_vampire> it is manual
[20:10:29] <andypugh> But (for example) that Gotteswinter chap on Youtube has a solid top slide on his lathe.
[20:11:05] <pink_vampire> what do you mean??
[20:11:27] <andypugh> It looks like you could mill down the slide to make some space
[20:13:00] <pink_vampire> you mean to make the compound lower?
[20:14:48] <andypugh> I removed the top slide on my lathe, and replaced it with a solid block: https://photos.app.goo.gl
[20:15:38] <pink_vampire> but the you can't cut angles
[20:18:25] <andypugh> https://youtu.be is someone (who is often online here) who has done the same on a manual lathe: https://youtu.be
[20:19:02] <andypugh> Well, with a CNC you can still cut angles, very easily.
[20:19:48] <pink_vampire> I don't think this lathe is going to become a cnc in my life time.
[20:19:53] <andypugh> With a manual, well, how often have you actually used the top slide?
[20:20:20] <pink_vampire> ALL the time
[20:21:09] <andypugh> OK, so then the question is whether you can make room for a QCTP, if you want one.
[20:21:14] <andypugh> I suggest CAD.
[20:22:30] <pink_vampire> I have a cad model of the AA multifix
[20:23:10] <pink_vampire> I think I need to make the bottom part of the compound abit shorter,
[20:23:54] <andypugh> But at some point there isn’t enough metal to hold the big stud in the middle.
[20:24:51] <pink_vampire> the stud is
[20:24:57] <pink_vampire> M8 screw
[20:25:15] <pink_vampire> I can make bushing for it
[20:25:45] <andypugh> But if you make the top slide too thin it has nothing to grip into.
[20:25:56] <pink_vampire> the bottom
[20:26:01] <pink_vampire> let me take a pic
[20:29:07] <pink_vampire> https://i.imgur.com
[20:29:33] <pink_vampire> to face cut this bottom section abit
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[20:31:21] <pink_vampire> what is the size of the shank on a 10mm or 1/2" tool?
[20:31:27] <pink_vampire> 10x10mm?
[20:31:35] <pink_vampire> 10x1/2"?
[20:31:39] <pink_vampire> andypugh: ^
[20:32:59] <andypugh> Depends in the tool. They are often, but not allways, square/
[20:33:40] <pink_vampire> ok, so let's say 10x10
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[20:37:35] <pink_vampire> in the lowest position of the holder the tip of the tool will be 16mm from the bottom. instead if 14.2
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[20:38:36] <pink_vampire> I might need to face the bottom of the tool shank to be 7mm instead of 10
[20:38:47] <pink_vampire> so it will be 10x7mm
[20:38:57] <pink_vampire> andypugh: what do you think?
[20:39:45] <andypugh> I am trying to imagine how it all fits together, but it does look like you could remove a fair bit of material there.
[20:41:22] <pink_vampire> but I don't want to modified the original part of the lathe
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[20:45:10] <andypugh> Why not? It’s your lathe :-)
[20:45:23] <andypugh> Did you see what I did to my lathe?
[20:46:26] <norias> this lathe was made for turning
[20:46:31] <norias> and that's just what it'll do
[20:46:39] <norias> one of these days this lathe will throw
[20:46:43] <norias> chips all over you
[20:46:58] <norias> sometimes turning can be boring
[21:00:21] <pink_vampire> I want to keep it as original as possible
[21:02:04] <andypugh> That’s fine, I am like that with my 1930s living-room lathe.
[21:03:06] <andypugh> But it does seem like the original design was a bit strange in how high it put the top of the top-slide.
[21:03:27] <andypugh> Anyway, time to try to sleep. (success unlikely)
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[21:15:58] <pink_vampire> it's so funny to find that the lead screw for the compound is 1/4"-20
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[22:01:56] <skunkworks> pink_vampire: is it left hand?
[22:11:37] <pink_vampire> skunkworks: no, regular 1/4" - 20
[22:14:49] <skunkworks> huh - interesting
[22:15:05] <pink_vampire> in did
[22:15:45] <pink_vampire> now I need to find nice tools for carabid inserts for aa holder
[22:15:57] <pink_vampire> 10mm shank or smaller
[22:16:33] <pink_vampire> skunkworks: what do you recommended as a general kit?
[22:18:23] <skunkworks> uh.. I don't know. I just usually see what my dad has ;)
[22:20:09] <pink_vampire> cool!
[22:20:20] <skunkworks> sorry.
[22:20:44] <skunkworks> I have played with the harbor freight lathe tooling kits. They work ok
[22:22:08] <pink_vampire> I have the small 1/4" shank, and it fine, but you can't find inserts for it, and I have no idea what rake angle it have.
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