#linuxcnc | Logs for 2018-12-01

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[00:02:16] <weenerdog> howdy Karl
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[00:18:22] <flyback> XXCoder, there's ones that do expensive alloy shit
[00:18:29] <flyback> they collect millings etc
[00:18:31] <flyback> dust
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[03:12:28] <Deejay> moin
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[03:21:40] <gloops> how come i always end up drawing dovetails first thing in the morning
[03:24:07] <XXCoder> lol. heys
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[04:03:50] <gloops> hi
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[04:27:54] <XXCoder> hey JT-Shop
[04:27:58] <XXCoder> jthornton:
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[04:55:45] <XXCoder> I wonder how well this would work as linuxcnc pc https://www.loverpi.com
[04:56:31] <XXCoder> problem is lack of parallel port, or any port for MESA or addition of parallel port
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[05:02:24] <MarcelineVQ> plug a parallel breakout into that gpio :>
[05:03:03] <MarcelineVQ> or move to ethernet
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[05:10:13] <gloops> https://ibb.co
[05:10:58] <rmu> XXCoder: it would work with SPI with the 7i90 or the upcoming (?) 7c80
[05:11:18] <gloops> so for box making, for a 100mm high box, cut the dovetails in a 100mm board, then saw the top off on table saw when the whole box is glued
[05:11:42] <XXCoder> 7i90 build of linuxcnc or?
[05:11:48] <gloops> 4mm seperation in the dovetails where the lid is sawn, for saw blade cut + a bit of planing
[05:11:50] <XXCoder> or MESA'
[05:11:53] <rmu> XXCoder: BUT you would need a rt-preempt kernel, I didn't manage to boot one and gave up in the meantime
[05:12:06] <rmu> MESA 7i90
[05:12:09] <gloops> then when the lid goes back on, the dovetails remain evenly spaced
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[05:13:47] <rmu> XXCoder: and i suspect the hm2_spi driver won't work reliably
[05:15:27] <XXCoder> ok
[05:16:11] <XXCoder> gloops: so it worked well? blended and all?
[05:18:20] <gloops> ive not cut this version yet
[05:18:57] <XXCoder> ok
[05:19:32] <gloops> leaving the drawing there for today lol, ive got my head round it now
[05:19:50] <XXCoder> :)
[05:21:24] <XXCoder> lol https://pbs.twimg.com
[05:21:51] <XXCoder> man people is merciless on those blood trees.
[05:22:48] <gloops> what are they?
[05:23:45] <XXCoder> xmas trees. apparently.
[05:24:04] <XXCoder> the added stuff is its now those "yep" and "nop" muppets
[05:25:59] <gloops> ah yeah
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[05:28:24] <XXCoder> https://www.youtube.com yep yep yep yep
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[05:30:51] <gloops> been a few years since i watched that lol
[05:31:40] <XXCoder> long time for me. that show never interested me, and when they finally started captioning shows, i was already past target age
[05:31:53] <XXCoder> btw they started captioning well before many kid shows did
[05:32:45] <gloops> something the majority never think about, but so important to the minority
[05:33:19] <XXCoder> one company who used to make sure games were captioned suddenly decided not to for one game
[05:33:24] <XXCoder> there was pretty large outage
[05:33:33] <gloops> if they ran a few shows with no sound people might start thinking about it
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[05:34:50] <XXCoder> yeah
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[05:37:22] <MarcelineVQ> that's weird, not captioning, half the places you'd watch a game at you can't hear it
[05:37:46] <MarcelineVQ> Not that you'll die if you don't heard the announcers ehe
[05:39:15] <XXCoder> not out world games. computer games
[05:42:40] <MarcelineVQ> Oh? There's definitely no excuse to skip sub-titles/captioning in games
[05:42:49] <MarcelineVQ> You already have a script :D
[05:44:02] <XXCoder> indeed
[05:44:13] <XXCoder> its worse when its remake, and orginial had it
[05:45:06] <sensille> for a 20mm face mill, fusion proposes 870PRM and 350mm/min, cutting wood. is this reasonable?
[05:45:26] <gloops> no
[05:45:48] <XXCoder> MarcelineVQ: https://www.eurogamer.net
[05:46:16] <MarcelineVQ> Ah yeah, they also don't let you turn off motion blur which really messed with some people and streaming.
[05:46:32] <MarcelineVQ> That stuff aside it's a really good remake though
[05:46:49] <MarcelineVQ> Especially given that activision maked them rush it out
[05:46:57] <XXCoder> that one is awful as its "its my way or highway"
[05:47:10] <XXCoder> motion blurs would make me SICK
[05:47:14] <XXCoder> as in cant walk
[05:47:18] <gloops> sensille get spindle up to 16000+ - move as fast as practical
[05:47:34] <MarcelineVQ> I turn off motion blur and depth of field because I can't see the goddamn enemies, they blur into the fucking scenery
[05:48:08] <MarcelineVQ> "man, this blob keeps shooting me, what the heck"
[05:48:26] <XXCoder> heh reminds me of fighting polyagons movie
[05:48:34] <sensille> gloops: max spindle rpm is 24k. "move as fast as" means the feedrate? so something like 1000mm/min?
[05:48:51] <XXCoder> I cheered for one side, whatever it is, to win first so fight would end and I can finally see who won
[05:49:14] <gloops> yeah, depending how deep a cut you want to make, 1000mm+
[05:49:24] <XXCoder> because, like I said, it was just bunch of polyagons fighting. cant tell which is which lol
[05:49:38] <XXCoder> oh yeah real movie name is the first transformers movie
[05:49:44] <gloops> it wont cut well at 870 in fact i doubt it will cut at all
[05:50:11] <MarcelineVQ> haha, a.k.a. Sound Effect Battle: War For The Polygons
[05:50:30] <sensille> ok, thanks. i want to mill off 2mm
[05:50:40] <MarcelineVQ> That shit is obnoxious, be glad you're spared it. A person can lament missing some sounds but those weren't of them.
[05:51:13] <jthornton> morning
[05:51:28] <gloops> depends on your machine, i can take 2mm off pine in one pass with 20mm cutter easily, could do 2 1mm passes or whatever
[05:52:09] <gloops> those high speed spindles have all the torque at the top speeds, very little at low speeds, also router cutters are usually designed to work in excess of 12000 rpm
[05:54:09] <gloops> as a rule of thumb the bigger diamter cutter, the lower rpm you need - the outer edge of the cutter is moving faster
[05:55:42] <jthornton> XXCoder: I wonder if that has a real ethernet chip
[05:55:57] <XXCoder> good question
[05:56:10] <XXCoder> that'd play hell on latency if it hits cpu for ethernet handling.
[05:56:50] <jthornton> well the rpi has a usb ethernet thing so can't use it for the ethernet boards
[05:58:03] <jthornton> dang it's going to be 70°F today!
[05:58:40] <XXCoder> one of those boards is $45 though I'd wait for confirmion they actually produced and shipped em out first.
[05:58:55] <XXCoder> 2 gb models. theres 512 mb ram and 1 gb editions also.
[06:03:17] <gloops> miserable drizzling rain here
[06:03:20] <gloops> always
[06:03:28] <XXCoder> washington state?
[06:03:35] <MarcelineVQ> XXCoder: hehe
[06:03:37] <gloops> yorkshire, UK lol
[06:03:44] <XXCoder> ah dont know there
[06:03:55] <XXCoder> it feels like 99% of rain goes to washinton state west side lol
[06:04:14] <jthornton> yea been raining all night here I'm pretty sure my fire has gone out by now
[06:04:16] <gloops> nothing has been dry for weeks
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[06:05:44] <gloops> was going to do bandsaw today, old motor was kaput and strange fitting so made a pulley adaptor so any motor with a pulley can drive it
[06:06:51] <gloops> or engine heh
[06:07:47] <XXCoder> or you
[06:09:05] <gloops> pedals are a last resort lol
[06:12:41] <XXCoder> yep lol
[06:12:57] <XXCoder> just read a book and pedal you wuss
[06:14:06] <gloops> better off with 300 hamster wheels
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[06:29:04] <sensille> gloops: that worked nicely. i still can slightly feel the pattern from the runs. does that mean the spindle isn't completely square? or do i need some overlap?
[06:29:35] <XXCoder> did you do perfectly edge to edge cut? or half overlap?
[06:29:49] <gloops> hmm, are you running the 20mm cutter at 20mm spaces?
[06:29:51] <XXCoder> usually good idea to have some overlap even of nicely square
[06:30:01] <gloops> yes, called 'stepover'
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[06:31:37] <sensille> looks like fusion chose 19mm. i'll do another run with more overlap going vertically instead of horizontally
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[06:32:36] <XXCoder> well if you got material to waste, do 2 squares of mill flat by tool
[06:32:42] <XXCoder> one in X rows, and other in Y rows
[06:32:56] <XXCoder> it'll tell you whats happening
[06:32:59] <gloops> you want to be less than half usually, depends what the task is really
[06:33:14] <gloops> lemme see what vectric gives as default for 20mm
[06:34:29] <gloops> for 19mm endmill stepover is is 7.6mm for pocketing
[06:34:36] <gloops> you want to try about 8mm
[06:35:19] <sensille> ok, thanks
[06:35:37] <XXCoder> sensille: after you do those squares, you will be able to see how far off tool is
[06:35:51] <gloops> if you get ridges then you need to tram the spindle
[06:36:07] <XXCoder> unless ridges is what you want lol
[06:36:59] <sensille> the ridges aren't completely consistent, so i'm afraid i'll never completely get rid of those
[06:37:48] <XXCoder> not consistent? you might be pushing spindle too hard
[06:37:53] <XXCoder> too much sideload
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[06:38:05] <XXCoder> or maybe need tighten stuff up remove some backlash
[06:38:17] <sensille> not consistent between the 2 halfes of the board
[06:38:47] <sensille> i'm using the full range of the machine, trying to make a flat spoilboard
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[06:40:24] <sensille> i don't see anything to adjust the spindle, i'll ask loetmichel later, he knows the machines (6040z)
[06:40:58] <weenerdog> good mawnin
[06:41:45] <gloops> could be some backlash or deflection somwhere, what machine is it sensille?
[06:42:20] <sensille> chinese 6040Z
[06:42:58] <sensille> i think the gantry is just not completly straight
[06:44:17] <gloops> yeah i think Loetmichel is up on those
[06:44:39] <XXCoder> sens yeah adjusting hardware itself to be better
[06:44:53] <XXCoder> you have something like two dial indictaor?
[06:44:55] <gloops> make sure its dead level all round
[06:44:58] <XXCoder> or maube just one
[06:45:48] <gloops> or at least, out of level consistently lol
[06:46:16] <gloops> you dont want one side up and one side down
[06:46:52] <sensille> i have one
[06:46:58] <Loetmichel> sensille: adjust it in which way?
[06:47:19] <sensille> but by milling the spoilboard it should be square to the board, no?
[06:47:26] <Loetmichel> yes
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[06:47:38] <sensille> Loetmichel: i milled the spoilboard and got slight ridges
[06:47:42] <Loetmichel> ah
[06:47:51] <Loetmichel> you can only adjust it sideways
[06:47:52] <gloops> milling the spoil board will ensure a parallel plane to the cutter motion all over yes
[06:48:00] <sensille> even slightly different from one side to the other
[06:48:01] <gloops> but that is not always a solution
[06:48:37] <Loetmichel> if you losen all 4 clamps of the spindle (careful, it will fall down) you can turn it sideways a couple mm
[06:49:01] <weenerdog> would a big fat ass bit and tiny stepover work out the ridges?
[06:49:05] <sensille> sounds like it's very easy for me to only make it worse
[06:49:23] <Loetmichel> the other direction is done by shimming either the upper or lower clamp with "hasberg foil" (or aluminuim foil in a few layers, whatever you have handy)
[06:49:25] <gloops> you only need something you know is square, a metal block or something to get the spindle close enough to play with
[06:49:41] <gloops> push the square up to a long cutter in the spindle
[06:49:54] <gloops> and rotate the cutter by hand, see if it looks true
[06:50:07] <Loetmichel> gloops: even better if you have a ground dowel pin
[06:50:14] <Loetmichel> made of steel
[06:50:21] <gloops> yeah anything like that
[06:50:30] <Loetmichel> or a tool shaft that has no edges
[06:50:44] <gloops> if you want .0 accuracy you can start from there
[06:50:55] <XXCoder> can use dial test indictor or dial indictor to see how much angle you moved it
[06:51:06] <XXCoder> might make for fewer iternations of trueing
[06:51:09] <Loetmichel> sensille: in which direction do you have ridges?
[06:51:11] <gloops> yes
[06:51:26] <sensille> Loetmichel: also the first run showed that the spoilboard differed in relative height by about 0.5mm initially, might be the board, might be the bed itself
[06:51:43] <Loetmichel> thats normal
[06:51:49] <Loetmichel> the bed is made of extrusions.
[06:51:55] <gloops> thats ok, i was 1mm out
[06:52:01] <Loetmichel> those are not straight by any means
[06:52:16] <gloops> over 4 ft..
[06:52:22] <sensille> Loetmichel: i only tried milling along the longer edge
[06:52:35] <sensille> so never trust the bed?
[06:52:39] <Loetmichel> so the edge the gantry moves in?
[06:52:43] <sensille> yes
[06:52:59] <sensille> i'll try the other direction next, but with lower stepover
[06:53:03] <Loetmichel> yes, on those cheap machines its better to mill the spoilboard flat because the bed itself isnt.
[06:53:13] <sensille> i used 19mm for a 20mm mill
[06:53:30] <Loetmichel> router bit?
[06:53:32] <sensille> and with a vacuum bed you'd do the same?
[06:53:37] <Loetmichel> yes
[06:53:38] <XXCoder> Loetmichel: yeah though im not sure what would be best thing for me to do yet.
[06:53:48] <sensille> 20 mm router bit, yes
[06:54:05] <Loetmichel> and you got ridges in y direction?
[06:54:07] <XXCoder> sens i once ran one router (giant one) that had caps for vacuum when that spot woild not be holding a part down
[06:54:22] <XXCoder> interesting design. I learned to hate vacuum hold by that machine though
[06:54:22] <Loetmichel> (assuming you sit in front of it and not sideways like me)
[06:54:38] <gloops> you cant be certain that both rails are absolutely parallel, there will be some twist along the gantry movement, and some twist in the bed
[06:54:47] <gloops> small errors accumulate
[06:55:08] <Loetmichel> XXCoder: i use painters tape to close any parts of the vaccum table that are larger than the workpiece
[06:55:13] <sensille> Loetmichel: ridges when moving my finger across the smaller direction, which i configured to be Y
[06:55:17] <gloops> for woodwork this is largely irrelevant unless you are talking a lot
[06:55:24] <XXCoder> I will never use vacuum hold.
[06:55:35] <Loetmichel> sensille: so your spindle is not aligned well in x
[06:57:06] <sensille> hard to talk in coordinates, i'm never sure we're talking about the same. misaligned in the direction i can fix by loosening the screws
[06:57:15] <Loetmichel> thats easy resolved: just losen up 3 of the four big inbus bolts that hold the spindle (DONT take them out, only losen them) , losen the fourth slightly but not completely and them take a brass/rubber mallet to tap the spindle in the right direction
[06:57:31] <Loetmichel> refasten all four bolts, try again
[06:57:42] <Loetmichel> if its good: try the other way for ridges
[06:57:55] <XXCoder> if has, use dial indictor to see how much you have moved it.
[06:58:22] <weenerdog> a speck of debris on the mating face would dick it up
[06:58:40] <Loetmichel> the otehr direction is harder because you would have to push some shims under one of the two holders of the spindle
[06:58:57] <Loetmichel> lets hope there are no ridges in that direction ;)
[06:59:32] <Loetmichel> weenerdog: spindle holder AND z plate are made of aluminium
[06:59:47] <Loetmichel> a spec of debris would just embed itself in the faces
[07:00:00] <Loetmichel> and not be a problem at all
[07:00:11] <XXCoder> only non alum parts of machines we are talking about is bolts, ballscrews and electrics stuiff
[07:00:52] <Loetmichel> XXCoder: indeed
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[07:01:01] <gloops> try this tramming method https://www.youtube.com
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[07:01:49] <Loetmichel> weenerdog: thats what sensille is doing atm: http://www.cyrom.org
[07:01:57] <Loetmichel> on the same kind of machine
[07:02:02] <sensille> Loetmichel: i compare it to the freshly milled spoilboard, right?
[07:02:07] <gloops> if you want to move the spindle along x dorection - shim top or bottom of the bracket
[07:02:15] <Loetmichel> just with a spoilboard, not a vacuumtable
[07:02:20] <Loetmichel> sensille: yes
[07:02:21] <sensille> using a square it is visibly very not square :)
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[07:02:51] <Loetmichel> gloops: correct, its the only way
[07:02:54] <weenerdog> there you go
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[07:03:30] <gloops> most woodwork is not required to be more square than a set square
[07:03:45] <gloops> (assuming the square IS square lol)
[07:03:47] <Loetmichel> (btw: that quarter inch phenolic paper stuff is a MESS when faced off ;)
[07:04:44] <Loetmichel> but its great as spoilboard because its waterproof but easy to mill
[07:05:11] <Loetmichel> so no problems when you accidentally or on pourpose mill into the board
[07:05:11] <sensille> i need to work my way up the precision ladder step by step :)
[07:05:19] <XXCoder> loet theres some plastics thats amazing good for milling also
[07:06:04] <Loetmichel> XXCoder: its great because it doesent melt when the aluminium on top gets searing hot because of dull mill bit or overeager feedrates... ;)
[07:06:06] <Karlheinz> Hi together, just a short test if the reg. is successful :-)
[07:06:24] <Loetmichel> Karlheinz: looks like it.. german?
[07:06:33] <XXCoder> yeah theres plastics like that
[07:07:00] <Karlheinz> it is
[07:07:03] <XXCoder> ah not cutting itself but alum. hmm maybe not yeah lol
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[07:07:34] <Loetmichel> XXCoder: i use it for spolboard/vacuumtable top
[07:07:42] <XXCoder> indeed
[07:07:44] <Loetmichel> so i can still cool with water spray occasionally
[07:08:06] <Loetmichel> but have no problems when i do my usual thing of perforating sheet alu ;)
[07:08:34] <weenerdog> when i build the rig i'm designing, i'll be thrilled if its straight by .5mm :)))
[07:09:11] <sensille> next run, hopefully the ridges are gone before the spoilboard is :)
[07:11:02] <XXCoder> lol yeah. just lower z by very slightly more than ridge height was ;)
[07:14:15] <Tom_L> 43�F Hi 49
[07:18:42] <Loetmichel> XXCoder: in the beginning i used MDF as spoilboard. Works pretty well but lacks water resistance
[07:19:17] <Loetmichel> https://www.youtube.com <- right after i got my first 6040 ;)
[07:19:50] <Loetmichel> thats 1" thick MDF taped/screwed to the bed
[07:20:08] <XXCoder> fun
[07:30:05] <sensille> wow, much much better :) can't really feel ridges anymore, but it still feels a bit "wavy". might as well be the tool not being perfectly flat
[07:31:00] <XXCoder> do a quick sand on it
[07:31:07] <XXCoder> see if it is easily blendable
[07:31:14] <XXCoder> if it is, then its close enough for wood
[07:31:40] <sensille> it's still with only 1mm overlap on a 20mm tool
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[07:35:27] <sensille> XXCoder: doesn't need much sanding to go completely away
[07:36:03] <XXCoder> maybe want trim more but if its for wood only it should be fine
[07:36:43] <sensille> the other direction measures ok with the square
[07:37:22] <sensille> XXCoder: i'm not sure i can do better with the means i have
[07:38:17] <XXCoder> yeah you'd need indictor to see how much you moved for better precision'
[07:38:18] <sensille> i want to do aluminum, though
[07:38:41] <XXCoder> and less loosen bolts and bit more rubber hammer
[07:39:13] <XXCoder> but without indictor its bit hard to say. theres really cheap ones that wouldnt pass at machinist shop but plenty precise for home
[07:39:22] <sensille> also i'm not sure it's not the tool, or a mixture of both
[07:40:22] <XXCoder> https://www.amazon.com
[07:40:59] <XXCoder> dont belive its .0005" its more like .002" maybe repeatability but plenty for home
[07:41:09] <sensille> yeah, i have one of those, but only one
[07:41:11] <jesseg> haha I ordered an R8 7/8"-20 shank for my boring head from a guy on ebay for $20 delivered, and they sent the 1-1/2"-20 instead by accident. I complained and they say they are sending me the correct one and that I can keep the wrong one.
[07:41:36] <weenerdog> sweet
[07:41:41] <XXCoder> you could use it on spindle side
[07:41:48] <XXCoder> see how far you move it
[07:42:00] <XXCoder> or touch it on smooth side of tool and rotate tool by hand
[07:42:05] <XXCoder> see how much runout it has
[07:42:13] <sensille> aren't there drill bits for squaring?
[07:43:05] <XXCoder> geez! this is super cheap https://www.amazon.com
[07:43:15] <XXCoder> everything for 32 bucks usd
[07:43:32] <XXCoder> used to be impossible to buy that cheap
[07:44:22] <Loetmichel> sensille: an old trick is to get a 4mm copper wire, make a "crank" out of it with 100mm or more in diameter, then put one end in the spindle, and a ballpen on the other end, then slowly rotate the spindle and move the spindle down 'til it touches the spoilboard. adjust the spindle until it makes a complete circle
[07:44:36] <Loetmichel> and you have a perfectly level and square spindle
[07:45:07] <weenerdog> thats a pretty cool tip, Loetmichel
[07:45:08] <Loetmichel> (that is considering that your spoilboard is milled reasonably flat)
[07:45:16] <jesseg> XXCoder, cool, allindustrialsupply is who I ordered that R8 boring shank from! The wrong one which arrived does look nice, but of course I have no idea how true it is
[07:45:27] <XXCoder> lol ok
[07:46:07] <XXCoder> Loetmichel: nice.
[07:46:55] <jesseg> XXCoder, by the way that style of articulated indicator arm mount is bloody awful to use. After suffering for years with one exactly like that, I'm gonna try one of these: https://www.amazon.com
[07:46:55] <Loetmichel> weenerdog: my great-grandma used to say "ein fuulen abbider derf net dum sin!" (old german dialect, it translates to "a lazy worker shouldnt be a fool")
[07:47:07] <Loetmichel> and i took that to heart ;)
[07:47:17] <sensille> Loetmichel: nice, and the geometry of that 'crank' is completely irrelevant
[07:47:23] <Loetmichel> indeed
[07:47:25] <XXCoder> jess yeah I own one of those, and all of em is that tpe at work
[07:47:27] <jesseg> however this one is cheap and not as big as it says but does look like it'll work - but nuga has some nice looking ones
[07:47:36] <XXCoder> theres also snake type, dunno how good it is
[07:47:36] <Loetmichel> only thing that matters is that the spindle bearing is good
[07:47:45] <Loetmichel> and the spolboard "flat" to the axis
[07:48:03] <jesseg> XXCoder, I have a snake one and it doesn't work, but someone told me that a Starret brand snake type works but all the other off brands just don't have it
[07:48:23] <XXCoder> I guess cant hold on shape enough
[07:48:32] <XXCoder> you really dont wanna arm move when measuring something
[07:48:56] <XXCoder> it could move something to completely unknown position which might mean scrapped part
[07:50:05] <Loetmichel> XXCoder: i used one like that: http://www.cyrom.org and it works pretty well... but this one i bought recently is even better: http://www.cyrom.org
[07:50:45] <XXCoder> yeah latter seems to be more and more standard.
[07:50:52] <XXCoder> mine come in badly misassemblied
[07:51:06] <XXCoder> I had to fix it, and worked really good since then. not bad for chineseium one
[07:51:45] <XXCoder> anyone with a lathe can easily make one
[07:51:53] <weenerdog> at least it aint harborfreightium
[07:52:01] <XXCoder> well in most cases. some stuff not too sure
[07:52:15] <XXCoder> weenerdog: harbor fright sells chinseium stuff
[07:52:31] <weenerdog> yeah but its a whole nother class of crappy
[07:52:32] <XXCoder> except some stuff I think may be actually rejects from them
[07:53:00] <weenerdog> except some of their stuff kicks ass. its either really good or really bad
[07:53:13] <XXCoder> or good bad
[07:53:27] <weenerdog> i got one of their oscillating spindle sanders and its awesome.
[07:53:30] <XXCoder> ie: something thats bad but easily hackable to do something else great
[07:54:25] <weenerdog> yeah if you're creative you can go in a HF and sometimes come up with a $5 solution to a $100 problem
[07:55:47] <sensille> Loetmichel: around 20 euro?
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[08:02:07] <XXCoder> looks like bush sr died
[08:02:17] <sensille> 'magnetic' wouldn't make much sense with an aluminum bed, or where are the supposed to be attached to?
[08:02:37] <XXCoder> yeah that is unfortunate. you culd use a heavy steel plate though
[08:02:54] <XXCoder> ,aybe with one bolt hole to be able to bolt it somewhere
[08:06:26] <Loetmichel> sensille: the " messuhrhalter"?
[08:08:43] <gloops> theres a useful ground plate on ebay here for 20 quid
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[08:10:06] <gloops> https://www.ebay.co.uk
[08:10:24] <gloops> not even worth grinding it for that
[08:10:57] <XXCoder> geez its almost as large as my router
[08:11:00] <gloops> https://www.ebay.co.uk
[08:11:09] <gloops> 25mm x 300x500
[08:11:11] <XXCoder> that IS larger
[08:11:47] <gloops> maybe useful for working with ally on router
[08:12:14] <gloops> some drilling to do though lol
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[08:13:37] <XXCoder> 1,000 drill and taps
[08:13:48] <gloops> with cordless drill
[08:13:59] <XXCoder> what, with battery and all?
[08:14:13] <XXCoder> if it moves electrons its too modern for you
[08:14:15] <XXCoder> ;)
[08:14:17] <gloops> hopefully with a spare battery..or 3
[08:15:17] <gloops> well ive given up on the saw for now, the weather has cheated me of final victory again, like Napoleon
[08:15:37] <XXCoder> no! give up and russia wins
[08:15:43] <XXCoder> just loike napoleon also lol
[08:16:09] <gloops> he who sits in front of the fire lives to fight another day
[08:18:16] <sensille> Loetmichel: yes. i'd need one to either use with nuts or bolt to the spoilboard
[08:20:12] <gloops> if you have a t-slot base, you can bolt strips of mdf to the highs, surface those, then you can still make use of the metal slots for clamping, shame to cover them
[08:21:19] <XXCoder> gloops: mine does. not sure how to do that
[08:22:06] <XXCoder> ff to bed before i die
[08:22:10] <Loetmichel> sensille: double sided tape and/or its own weight
[08:22:15] <Loetmichel> usually sufficient
[08:22:16] <gloops> you would need to drill the t-slot base, drill the strips with recess for the bolts
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[08:30:17] <Karlheinz> 1
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[08:36:30] <sensille> so i just buy the arm and make a boltable base
[08:42:53] <sensille> Loetmichel: can't even reach the spoilboard with a small tool, need to move the spindle lower :(
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[08:44:39] <Loetmichel> sensille: its a cylinder so that shouldnt be a problem
[08:44:58] <Loetmichel> once you losen all four clamping screws it will fall down all on its own
[08:46:26] <sensille> or i don't put in the bit that much
[08:46:44] <sensille> hm. moving the spindle makes sense in the long run
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[08:53:04] <gloops> did this machine come already assembled sensille?
[08:53:28] <gloops> they wont have put any thought into the spindle height, they just throw them together
[08:54:02] <sensille> it did
[08:54:25] <sensille> so i just move it down and re-align it
[08:55:18] <gloops> yes, wherever it needs to be
[08:55:32] <sensille> if i want to mill two parts that fit tightly, how much clearance would i give them?
[08:55:46] <sensille> aluminum
[08:58:23] <gloops> you wont be working to anything nearer than .05mm som trial and error with your machine might be needed
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[09:22:08] <gloops> 81 people have been arrested as Paris fuel protests turn violent with riot police firing tear gas and stun grenades
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[09:22:30] <gloops> another starkly divided country
[09:24:00] <gloops> Macron calls for a more united europe, he cant even keep his own country peaceful
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[09:26:17] <weenerdog> heh i just vote and then turn off the tv for a couple years
[09:28:33] <gloops> im at the point where i think ill give up voting, they never do what they promise anyway, its all a sham
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[10:09:06] <sensille> Loetmichel: so for aluminum: 24kRPM, F1200, 0.1mm depth?
[10:10:26] <sensille> also, what acceleration do you use on the 6040?
[10:13:21] <sensille> 750mm/s^2 seems to be too much for my table, the "official" "manual" seem to recommend 150mm/s^2
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[10:19:22] <weenerdog> at .1mm, drive it like you stole it
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[10:37:58] <sensille> how is it called in f360 if i want to clear a pocket completely into the corners by going too far into it?
[10:39:25] <fragalot> you mean mickey mouse ears?
[10:39:37] <sensille> probably :)
[10:39:46] <fragalot> https://www.youtube.com
[10:40:37] <fragalot> https://www.youtube.com
[10:40:38] <fragalot> and that
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[10:42:34] <sensille> so the cam module can't do it, i have to model it
[10:42:42] <fragalot> as far as I know, yes
[10:43:26] <sensille> ok, so i can stop clicking through all options over and over :)
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[10:48:28] <Tom_L> naw, keep clickin til you find it...
[10:49:33] <Tom_L> i don't use fusion but i just add an array of lines to my cutter path on a bolt head etc
[10:50:12] <HighInBC> dog boning it is called sensille
[10:50:46] <weenerdog> thats what we called hanging out with the girls' soccer team in college
[10:50:51] <HighInBC> lol
[10:51:20] <weenerdog> ba dum DUM
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[12:17:56] <sensille> hm. is there a way to specify a max stepdown in f360 for all paths at once? it's easy to forget one path and lose an endmill
[12:38:52] <gregcnc> you can compare toolpaths
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[12:43:03] <fragalot> regardless of how much you tinker with it, getting a good surface finish in a 60mm thick block of cast iron in a ~20mm bore using a tiny chinese boring head with screw-on MK2 shank, an MK2-ISO30 adapter, with an 8mm lathe boring bar, even if you custom make a thicker 20mm bar to go into the 8mm mounts... who knew.
[12:43:08] <fragalot> :D
[12:48:02] <cpresser> sensille: parameters?
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[13:30:47] <sensille> cpresser: sorry?
[13:35:40] <cpresser> you can also use global parameters of fusion in toolpaths
[13:35:52] <cpresser> so one option is to make a stepdown variable, and use that
[13:38:08] <sensille> but is there a way that every new path has that prefilled?
[13:38:26] <Loetmichel> sensille: F1200, 24krpm, 0,1mm depth with a 2mm two flute tungsten carbide cutter
[13:38:28] <Loetmichel> correct
[13:38:43] <Loetmichel> acceleration is 650mm/s^2 here
[13:39:16] <sensille> ah, good. used 200 now, and it's really slow
[13:39:19] <Loetmichel> and for the "mickeymouse ears" try exporting it as a DXF and then download CamBam
[13:39:42] <Loetmichel> and do the cam in there
[13:40:27] <Loetmichel> the preset is called "pocket and corners" or something.
[13:40:51] <Loetmichel> <- doesnt like F360, so cant do any advice there
[13:43:05] <cpresser> sensille: afaik there is no button that does exactly the thing you asked for
[13:43:15] <sensille> the first part came out 0.1-0.15mm too small
[13:43:33] <Loetmichel> at which size?
[13:43:45] <cpresser> there is an option to compare toolpaths, so you can quickly spot the differences of settings
[13:43:53] <sensille> cpresser: ok, so i just have to take care at each now path
[13:44:17] <sensille> Loetmichel: 6mm x 10mm
[13:44:27] <cpresser> yes, and if you use parameters, you can change that value globally
[13:47:14] <sensille> same effect on a pocket, 0.1-0.15mm
[13:47:21] <sensille> too wide
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[13:49:04] <sensille> is that spindle runout?
[13:50:43] <fragalot> that's a lot of runout, but it is possible
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[13:52:01] <sensille> should do the same test with different endmill diameters
[13:52:36] <sensille> or the same endmill, but only inserted half as deep?
[13:53:44] <fragalot> or just measure the runout with an indicator
[13:55:29] <sensille> just drilling a single hole should also do it
[13:55:48] <sensille> i ordered the indicator holder, takes a while to arrice
[13:55:52] <fragalot> that's assuming the drill is perfect
[13:55:52] <sensille> *arrive
[13:57:04] <sensille> how would i measure runout with an indicator? wouldn't i need a shaft-only bit?
[13:57:21] <fragalot> you measure against the flutes. spin it backwards and measure the "high spots"
[13:58:08] <sensille> and measure from different sides
[13:58:54] <fragalot> that shouldn't matter
[13:59:26] <fragalot> when I said spin, I meant slowly, by hand
[13:59:32] <fragalot> (just to make that clear :))
[13:59:37] <sensille> yes :)
[14:04:00] <sensille> finding a book with all the tricks of the trade would be great
[14:06:21] <fragalot> that's one of the issues.. afaik, there aren't all that many books that have a good collection of the special tricks that the oldtimers all use without thinking twice about it
[14:10:50] <sensille> "maschining for hobby cnc'ers"
[14:25:15] <syyl_> there are books on all of those things
[14:27:33] <syyl_> metall working sink or swim, machine shop trade secrets, "the tricks and secrets of old time machinists" 1-4, machinists bedside reader, toolroom practice, workshop techniques by famous g.h. thomas, "shop theory" by the henry ford trade school
[14:28:17] <fragalot> I've not seen any of those in my local bookshop. The closest thing they've got is the "blue machinists' bible' .. no idea what the official name is.. but it's blue.
[14:28:31] <syyl_> i had to buy them all ;)
[14:29:27] <sensille> syyl_: noted :) which one to start with, as a total newbie?
[14:29:45] <syyl_> a friend that has a machine and show you a few things ;)
[14:29:47] * sensille was just looking at "machining for dummies"
[14:30:49] <syyl_> depends, most of them are older and for manual machining
[14:31:51] <fragalot> the friends, or the books?
[14:31:57] <syyl_> haha
[14:31:59] <syyl_> books
[14:32:11] <syyl_> but most of my machining buddys are manual machinists too
[14:32:12] <syyl_> haha
[14:32:17] <fragalot> :-)
[14:33:04] <sensille> i should have to make those friends first ...
[14:35:10] <sensille> s/should/would
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[15:10:53] <sensille> fragalot: "machinery's handbook"?
[15:16:06] <cpresser> "Tabellenbuch Metall" they are cheap on ebay, because everybody needs to buy one :)
[15:16:30] <JT-Shop> machinery's handbook is great if you know the fundamentals of machining and need a formula or how to heat treat something
[15:23:23] <JT-Shop> sensille: the Machinery's Handbook is a Reference Book for the Mechanical Engineer, Designer, Manufacturing Engineer, Draftsman, Toolmaker, and Machinist.
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[16:24:28] <gloops> https://www.facebook.com
[16:24:40] <gloops> diy fully automatic crossbow lol
[16:27:50] <weenerdog> thats bad ass
[16:28:31] <gloops> i need to practice an insane german accent for if i make any videos
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[16:34:08] <syyl_> as far as i know that guy doesnt live to far from me
[16:34:32] <gloops> syyl_ thats not good
[16:44:48] <gloops> i bet they would go like hotcakes on ebay though, not sure what the law on crossbows is here
[16:46:24] <gloops> Using a crossbow (or any bow weapon) for hunting is completely illegal here in the UK. The crossbow itself cannot be carried in public and a common sense approach should be adopted when transporting a crossbow. However, It is not illegal to own a crossbow.
[16:46:33] <SpeedEvil> Always carefully read your laws.
[16:46:59] <gloops> seems theyre legal if you dont use for hunting
[16:47:03] <SpeedEvil> Minor construction details can change something from no licence required to as illegal as a sawn-off AK47
[16:47:24] <gloops> well they have paintballing guns
[16:50:19] <gloops> also 18 year old age restriction, kinda does the ebay sales
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[17:20:02] <Deejay> gn8
[17:23:49] <weenerdog> heh here you can hunt deer with a law rocket if you want
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[17:31:14] <gregcnc> I haven't unwrapped by copy of "Machining for Dummies" yet.
[17:38:53] <syyl_> a crossbow is sportsgear here, gloops
[17:39:00] <syyl_> but hunting with it is prohibited
[17:39:26] <gloops> a lot of wounded animals with bow hunting
[17:39:31] <syyl_> they are not considered a weapon, only a "dangerous item" at max
[17:39:53] <gloops> well ive seen some pretty lethal crossbows
[17:40:09] <syyl_> i guess most crossbows are pretty lethal ;)
[17:40:46] <gloops> there was a lot of fuss here years ago when someone got shot on a bus with one
[17:41:32] <syyl_> well, thats unique
[17:42:19] <Wolf__> arrow are fun, they defeat most soft body armor and can pass right through car doors and whatnot
[17:43:59] <weenerdog> i deer hunt with a remington model 783 .308
[17:44:09] <weenerdog> great cheap rifle
[17:51:28] <Wolf__> I dont hunt… and I dont have any cheap rifles lol
[17:56:36] <XXCoder> Wolf__: yeah it may be old type, but still very effective for all that
[17:56:49] <XXCoder> its why bow and arrows lasted for long time
[17:57:28] <XXCoder> im surpised its not used to assassate someone yet though carrying bow around is VERY visiable lol
[17:57:55] <weenerdog> ask the dude that went to north sentinel island
[17:58:03] <MarcelineVQ> These days classy assasins use meds that simulate heart attacks instead
[17:58:07] <Wolf__> mod a paintball gun to fire arrows
[17:58:23] <XXCoder> as well as bring a gun
[17:59:00] <XXCoder> im picturing pro assassin bringing a nice violin case, open it and pull out sections of bow and assemblies it
[17:59:10] <XXCoder> $1000 if you use that idea in movie
[18:00:05] <gloops> hmm, arrows are boring, it needs to be 5 sided sharpened metal discs
[18:02:00] * Wolf__ wonders how you make a disk with 5 sides...
[18:02:24] <XXCoder> ask mr ecluid
[18:02:33] <XXCoder> he can do weird stuff
[18:04:29] <gloops> http://images.ontheedgebrands.com
[18:05:08] <XXCoder> thats not disc
[18:05:25] <gloops> isnt it it?
[18:09:17] <jesseg> well I guess if you modify the definition of disk just about anything could be a disk
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[18:10:03] <gloops> its based on a disc, what would you call it?
[18:10:24] <jesseg> well what's not "based" on a disk to some degree?
[18:10:29] <Wolf__> rail gun + throwing stars = fun? =)
[18:10:57] <gloops> i dont know what other word to use for something like that
[18:11:50] <Wolf__> shuriken
[18:12:01] <Roguish> check this: go to about 2:30 https://www.youtube.com
[18:12:03] <jesseg> You could take a sphere and say oh look it's round, so is a disk, it's a disk. Or a flat square and say oh, it has a flat side, and so does a disk, so it's a disk. Everything in the universe could be logically declared to contain some facet that was similar to part of a disk.
[18:12:22] <gloops> its a flat circular object lol
[18:12:33] <jesseg> gloops, a fan-blade, a zero pitch propeller,
[18:12:53] <gloops> i wouldnt say it was a fan blade, because it isnt
[18:13:02] <jesseg> and no it's not circular as a feature, but it does consist of a radial array of sector shapes.
[18:13:29] <jesseg> well sure it is a fan blade with a pitch of zero, assuming it's sharpened equally on both sides. If not, then it has a non zero pitch.
[18:14:28] <jesseg> a fan is in theory anything that has 2 or more essentially idental features arrayed in a polar fashion.
[18:14:42] <gloops> a fan describes a specific function like moving air, this is for flying
[18:16:00] <jesseg> sorry my friend, fan can mean lots of other things. Look up fan-out -- it's the number of downline network hubs can be connected to an output port on the master hub. That isn't about moving air, it's about the radial array of nodes as drawn on the wiring diagram.
[18:16:08] <MarcelineVQ> you can describe a sphere with a disc, you can also describe it with a line, or simply with a distance from origin. Being pedantic about whether a circular fairly flat object is a disc is a little silly though. That semantic was solved a long time ago, discus means disc after all, even though it's a lens shape.
[18:17:14] <jesseg> gloops, and here's how you fan out cards: https://www.youtube.com
[18:17:17] <MarcelineVQ> is that shit roundish, is if flatish too? call a duck a duck
[18:18:16] <MarcelineVQ> there's better things to be upset about, like being arrested for taking a pocket knife camping with you in scotland
[18:19:09] <gloops> im not upset over this, it was a light hearted comment about a thing that probably doesnt exist
[18:19:26] <jthornton> or arrested for having a stray .22 bullet under the seat of your motorhome when you cross into Canada
[18:19:55] <MarcelineVQ> jthornton: those things get everywhere too
[18:20:03] <MarcelineVQ> so tiny
[18:20:07] <jesseg> MarcelineVQ, ok I could get upset about that. You can't take a pocket knife camping in Scotland? No wonder my grandpa left there!
[18:20:18] <jthornton> and work as fuses too lol
[18:20:32] <jesseg> yeah they let you knwo if you overcurrent them too
[18:22:15] <jthornton> hmm bootloader failed to install... I wonder if that is bad or not
[18:23:13] <XXCoder> jesseg: would be funny to see acciental death report: "Fuse blew and bounced around car and killed driver"
[18:23:29] <XXCoder> that diesnt sound good
[18:23:34] <XXCoder> the bootloader thing
[18:25:01] <jesseg> XXCoder, I doubt the lead goes much of anyplace. The brass is much lighter and would be the one to move, and probably sideways because it probably splits sideways and shoots off that way
[18:25:42] <XXCoder> lol ok
[18:25:51] <jesseg> but that's pure conjecture because I've never tried it
[18:26:24] <XXCoder> probabkly because your iq is higher than room temperate
[18:26:28] <jthornton> yea without anything to contain the pressure the bullet will not have much velocity
[18:26:33] <jthornton> lol
[18:27:05] <jesseg> well it's about 55F in here so it might be above room temperature
[18:27:14] <XXCoder> lol
[18:27:51] <jthornton> I unplugged the 1TB drive so the install doesn't get confused
[18:27:55] <XXCoder> would be very strange world if we were dependant on temperate for iq. iq = temperate area is at
[18:28:14] <XXCoder> we probably would heat the heck out of building, to max tolentable temperate
[18:28:32] <jdh> reptiles
[18:28:58] <jesseg> it's cold enough in here I might not be smart enough to turn on the heat to solve the problem though so I might be stuck dumb
[18:29:12] <XXCoder> indeed
[18:29:36] <XXCoder> probably have saying "I got stuck cold" as in got a dumb moment
[18:29:46] <jesseg> I might already be stuck dumb. I think I'm going to go outside where it's even colder. I hope I still have enough IQ left to come back indoors :P
[18:29:55] <XXCoder> lol
[18:30:23] <jesseg> take it easy folks, I'ml off.
[18:30:33] <XXCoder> later
[18:30:38] <XXCoder> looks like bush sr died
[18:31:07] <jthornton> now it wants to know if I want to force UEFI mode...
[18:31:15] <jdh> heh
[18:31:41] <XXCoder> a bios replacement. interesting
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[18:44:07] <jthornton> I'm running Linux Mint 18.1 here but can't find the disk...
[18:44:43] <XXCoder> flash drive?
[18:45:05] <jthornton> never done that.. I always use CD or DVD
[18:45:26] <jthornton> I'll download 18.3 in the morning during free time
[18:45:38] <XXCoder> cool
[18:45:54] <jthornton> I think I had that boot thing error before with two drives plugged in
[18:46:04] <XXCoder> i wonder if theres a program to automatically download stuff you wanna download at assigned time
[18:47:18] <weenerdog> on linux or win?
[18:47:31] <XXCoder> whatever os jt uses
[18:47:37] <XXCoder> I have unlimited here
[18:48:03] <weenerdog> heh the only thing about living in the boondocks is my internet
[18:48:07] <jthornton> most of my pc's are linux
[18:48:27] * jthornton lives out past the boondocks lol
[18:48:31] <weenerdog> its unlimited, but i have to pay $50/mo. for 1 (one... uno) megabit
[18:49:13] <jthornton> hmm the barbie should be warmed up and ready to slap the meat on
[18:49:26] <weenerdog> i have 60 megabit at work tho. i do big stuff there
[18:50:25] <HighInBC> dang
[18:54:50] <XXCoder> you menioned food, you must send some to me
[18:55:11] <XXCoder> drinking soylent now. yummy
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[20:46:41] <weenerdog> never bang a woman with the crazy-eye https://www.cbsnews.com
[20:47:04] <norias> whoa
[20:52:42] <skunkworks> I make awesome videos.. https://www.youtube.com
[20:52:52] <XXCoder> you better
[20:53:09] <XXCoder> its steady cam, captioned
[20:53:12] <XXCoder> way to go
[20:53:18] <XXCoder> wellll autofocus a negative
[20:54:41] <skunkworks> heh
[20:54:59] <skunkworks> It is my f'in phone.. circa 2013
[20:55:07] <skunkworks> ;)
[20:55:41] <XXCoder> :)
[20:56:02] <skunkworks> really? captioned? cool
[20:56:03] <XXCoder> was you here when jt and me talked a lot about vismach?
[20:56:13] <skunkworks> No.
[20:56:37] <XXCoder> lol ok. i made a new vismach example with more comments than you (or anyone) can handle lol
[20:56:42] <XXCoder> its now part of linuxcnc
[20:56:49] <skunkworks> awesome!
[20:57:04] <skunkworks> I have only looked at vismach in passing
[20:57:05] <XXCoder> comments alone probably tripled the file length
[20:57:23] <XXCoder> its named rolfmill
[20:58:48] <XXCoder> https://www.youtube.com video I made
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[21:01:41] <XXCoder> https://github.com peer the comments lol
[21:02:26] <skunkworks> cool - nice work
[21:02:31] <XXCoder> welcome
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[21:55:42] <cawfeet> when i'm welding galv iron i get a headache
[21:56:02] <cawfeet> will this go away with prolonged exposure?
[21:56:06] <norias> hmmmmm
[21:56:17] <cawfeet> kind of like how i'd get stiff from lifting weights... if i keep doing it i won't get stiff anymore?
[21:56:57] <norias> you got the fever
[21:57:07] <XXCoder> cawfeet: look up zinc fever
[21:57:26] <cawfeet> here's a legit question
[21:57:35] <weenerdog> milk is supposed to make zinc fever go away faster
[21:57:39] <cawfeet> if i spin a VFD backwards before starting it will that damage the motor?
[21:57:48] <weenerdog> really the calcium. i'd do coral calcium.
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[22:50:20] <CaptHindsight> yes if you breath in the vapors from welding galvanized deeply then after death you'll feel no pain
[22:51:18] <CaptHindsight> add another nick to the galvanized troll list
[22:52:06] <XXCoder> lol
[22:54:42] * roycroft votes for avoiding toxic fumes vs. embracing anecdotal remedies for ameliorating the effects of the fumes
[22:56:54] <skunkworks> wtf
[23:06:14] <CaptHindsight> and the "legit" question was also weird, why would you spin a VFD? it's a piece of solid state electronics
[23:06:47] <roycroft> one might want to spin it for fun
[23:07:00] <CaptHindsight> true
[23:07:09] <roycroft> however, spinning it should not affect its functionality unless it is spun very fast
[23:07:09] <CaptHindsight> who am I to judge
[23:07:47] <roycroft> keeping the cabling connected properly while it is being spun would be an interesting challenge
[23:07:51] <MarcelineVQ> What if VFD's actually spin the world around them to work
[23:08:06] <CaptHindsight> how bored do you have to be to troll about hurting yourself?
[23:08:16] <MarcelineVQ> 20 bored
[23:08:32] <CaptHindsight> we certainly get a few weirdos in here
[23:08:33] <roycroft> it may be more a function of drugs than boredom
[23:08:44] <CaptHindsight> or lack thereof
[23:08:46] <XXCoder> or function of zinc
[23:08:49] <roycroft> welcome to the internet!
[23:10:41] <roycroft> yes, they could be the result of zinc fever
[23:11:44] <roycroft> anyway, when the real kooks come around i don't mind so much
[23:11:57] <ziper> my chinese power supply has an inductor rattling around inside
[23:12:03] <roycroft> it makes me feem not so odd in comparison
[23:12:21] <roycroft> feel, rather
[23:21:55] <Tom_L> ziper they put spare ones in them sometimes just to rattle around
[23:22:34] <Tom_L> are zinc fumes better than crack?
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[23:22:46] <XXCoder> no idea as never tried either
[23:23:00] <roycroft> nor i
[23:23:08] <Tom_L> me either
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[23:23:30] <roycroft> i prefer different kinds of vises :)
[23:23:55] <roycroft> but
[23:24:01] <roycroft> different strokes for different folks
[23:24:07] <ziper> yeah never know when you might need a spare
[23:24:36] <roycroft> a spare vise?
[23:24:49] <Tom_L> i wanted to get one but not sure i will
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