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[02:50:57] <humble_sea_bass> roofles
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[02:53:49] <Tom_itx> mighty quiet evening
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[15:54:48] <JT-Shop> quiet in here today
[15:55:07] <Deejay> indeed
[16:02:29] * syyl_ws drops a needle
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[16:07:02] <ReadError> so
[16:07:13] <ReadError> square m3 nuts are impossible to find in the USA ;/
[16:07:23] <ReadError> only 1 sketchy sorta place had them
[16:07:25] <jdh> make them!
[16:08:20] <jdh> I don't seem to use a lot of nuts.
[16:11:31] <ReadError> lol I value my time more than that ;)
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[16:14:05] <jdh> what are you making that needs a square nut?
[16:14:52] <ReadError> basically an easy way to bind 2 parts
[16:15:05] <ReadError> im doing a --|- slot
[16:15:16] <ReadError> for material i cant tap
[16:18:58] -!- IchGuckLive [IchGuckLive!~chatzilla@88-134-131-25-dynip.superkabel.de] has joined #linuxcnc
[16:19:03] <IchGuckLive> hi all B)
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[16:19:31] <IchGuckLive> oh not many posts today
[16:19:41] <IchGuckLive> ReadError: why sqare
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[16:19:58] <IchGuckLive> m3 is best to make it yourself
[16:20:29] <IchGuckLive> M20> is a bit a grab with no shop
[16:21:07] <jdh> for a kent style dust shoe?
[16:24:36] <ReadError> IchGuckLive: square because its easier tolerance wise
[16:24:45] <ReadError> nah jdh
[16:24:59] <IchGuckLive> up to you
[16:25:04] <ReadError> basically want to mount 2 pieces of G10 together at a 90 degree angle w/ minimal hardware
[16:25:15] <jdh> too bad. I want someone to draw one up and send it to me :)
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[17:27:26] <IchGuckLive> its holiday time all over the world
[17:27:46] <IchGuckLive> 2 days to go till retirerment
[17:28:47] <IchGuckLive> and good news for me >bad< for the channel the goverment did accept the movement towards the outback for 5 years
[17:29:12] <jdh> what does that mean in .us english?
[17:29:31] <IchGuckLive> im off for at least 5 years in the near futur
[17:29:57] <jdh> what happens after 5 years?
[17:30:24] <IchGuckLive> thats the way live is
[17:31:00] <IchGuckLive> the contract for the farm is only signed 5 years
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[17:32:23] <jdh> an outback farm in .de?
[17:32:48] <IchGuckLive> its a old saw mill station in middle of the forest
[17:32:54] <IchGuckLive> deep in a valey
[17:33:28] <IchGuckLive> NOt realy far from neyt town but its not inside the "civilication" connections
[17:33:37] <jdh> no interwebbes?
[17:34:14] <IchGuckLive> so far no to all own waterwell no power
[17:34:36] <IchGuckLive> im a ham so i will see what i can do
[17:34:52] <IchGuckLive> but its in a national park side
[17:35:03] <IchGuckLive> i dont think i can get a tower up
[17:35:26] <IchGuckLive> the contract does not give the clue on that
[17:36:02] <IchGuckLive> in snow winters there is 3month off the road
[17:36:12] <IchGuckLive> if it is
[17:36:48] <IchGuckLive> the familie now on is forced to leave because of school children
[17:37:14] <IchGuckLive> Now they ttry with older people
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[17:44:55] <mozmck> anyone know why the mailing lists have changed headers?
[17:45:20] <mozmck> It has messed up all my linuxcnc message filters! :)
[17:45:54] <IchGuckLive> new distro chanfe from rtai to preeamt
[17:46:25] <IchGuckLive> mozmck: ask on devels
[17:55:49] <asah> I have an OT bolt question. what do you call a bolt with a hex socket on the end of the threaded end, opposite where the typical cap screw hex is.
[17:56:26] <asah> so I can put it into a blind hole and hold the threads from moving while tightening a nut on it.
[17:56:48] <asah> looking on mcmaster
[17:56:52] <asah> can’t find it.
[17:56:58] <archivist> http://www.ebay.co.uk/itm/200pcs-Stainless-Steel-Allen-Head-Socket-Hex-Set-Grub-Screw-Assortment-Cup-Point-/111418502673?pt=LH_DefaultDomain_0&hash=item19f10f6e11
[17:57:23] <asah> sorry, blind was the wrong word.
[17:57:38] <asah> imagine a set screw like that with a cap on one end.
[17:57:42] <asah> or a flange
[17:58:13] <archivist> cap head is a common name
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[17:59:24] <asah> so imagine a typical hex bolt, with the end of it looking like those set screws you just set.
[17:59:26] <asah> sent
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[18:00:02] <archivist> no sensible qty use so would be a special
[18:00:13] <asah> so I can put a hex key in and hold it in place while I wrench a nut down along the threaded end.
[18:00:36] <asah> I could just slot the end of a bolt I suppose and hold it that way.
[18:00:43] <archivist> hold the head, much easier
[18:00:43] <IchGuckLive> im off for today by
[18:00:45] <asah> flathead screwdriver style
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[18:00:51] <asah> I can’t reach the head.
[18:01:01] <asah> its inside a place I can’t reach.
[18:01:20] <archivist> fix the design or get bolts made
[18:01:33] <asah> I can get the bolt in on that end, and I have access to the side that is out to the world.
[18:01:36] <asah> =)
[18:01:46] <asah> its an old mill I don’t want to drill anymore holes in. =)
[18:01:55] <archivist> glue a nut inside
[18:01:56] <asah> I could drill an access hole.
[18:02:17] <archivist> tap the hole
[18:02:27] <asah> its holding on a very large servo.
[18:02:54] <asah> I got it on using vise grips to hold the threaded end.
[18:03:01] <asah> its on, but thats not a great solution.
[18:03:09] <asah> I want to redo it a little cleaner.
[18:03:10] <asah> =)
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[18:05:56] <asah> I could swear I have seen such a bolt
[18:06:44] <archivist> I have seen some similar but they are the sort you find made to order for car companies etc
[18:10:44] <asah> like this, but with a hex instead of a hole:
http://www.google.com/imgres?imgurl=http%3A%2F%2Fimages.chassisshop.com%2FCACHE887656E06065293AE0449983A7D0C34D%2FEarls%2Fpn_993304%2F993304.jpg&imgrefurl=http%3A%2F%2Fsecure.chassisshop.com%2Fpartdetail%2F993304%2F&h=595&w=600&tbnid=04SVl1eRJmE24M%3A&zoom=1&docid=zTvftw7UNb8o5M&ei=iwbpU5DZMcSpyATtoIDwBA&tbm=isch&client=safari&ved=0CFcQMyhPME84yAE&iact=rc&uact=3&dur=1676&page=7&start=237&ndsp=46
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[18:16:34] <archivist> you can drill and punch the hex
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[18:20:09] <archivist> at a previous job I made broaches to make internal squares in bar (clock winding keys)
[18:20:10] <asah> archivist: thanks for the ideas.
[18:20:42] <asah> drill and punch may be the way to go.
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[18:22:28] <archivist> there is another way or three
[18:23:10] <archivist> get bolts drill and turn the internal hex.... you need linuxcnc for that :)
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[18:24:33] <archivist> asah, that was not a joke :)
https://www.youtube.com/watch?v=FpP7iTKuWpw
[18:24:35] <asah> trying to get my mill up so I can build nice things like that.
[18:25:45] <asah> nick mueller has a nice vid of his 4th axis doing cam milling on his 4th axis.
[18:25:55] <archivist> https://www.youtube.com/watch?v=T4q8gCpeY1A
[18:25:59] <asah> planning to have a spindle and a 4th axis as options for mill turn
[18:26:07] <archivist> this is the actual hex
[18:27:02] <asah> cool!
[18:27:42] <archivist> you could also shape the form
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[18:30:47] <archivist> if you can index the lathe spindle you can use the carriage as a shaper, a bit boring but doable
[18:31:26] <archivist> I did a knurl on a finger nut that way
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[18:35:37] * JT-Shop adds another note to self, don't include the dowel pin offset in the cam part location
[18:36:46] <archivist> methinks you have a large board on the workshop wall covered in notes
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[18:43:23] <jdh> I carry a sharpie around with my badge. I write lots of notes in control cabinets. It annoys the maint. guys, but they like to see them when things break.
[18:46:00] <JT-Shop> my BP Anilam CNC knee mill used to be covered in sticky notes...
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[18:56:36] <JT-Shop> I need to plug a 23/64" machining hole in 7075, I'd like a good press fit. Any ideas on what size the plug should be? The hole measures 0.3595
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[19:00:32] <archivist> you can also make a running fit and rivet it up
[19:01:25] <archivist> we usually hammer then file flat in clock plate repair
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[19:02:29] <archivist> cant see the join most of the time :)
[19:02:31] <JT-Shop> I have to drill into the plug
[19:02:59] <archivist> we do when bushing a clock
[19:03:31] <archivist> allow enough so the hole wont weaken it too much
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[19:05:46] <archivist> on this image the hole was offset so I keyed the plug (crap image)
http://www.collection.archivist.info/archive/DJCPD/PD/2003/2003_07_28_Dial_Norfolk/P1010023.JPG
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[19:07:02] <archivist> but reasonable hidden at the end
http://www.collection.archivist.info/archive/DJCPD/PD/2003/2003_07_30_Dial_Norfolk/P1010008.JPG
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[19:07:35] <JT-Shop> nice
[19:09:16] <archivist> I think riveting in fills the gaps a bit better than pressing because in may seize in a pressed fit
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[19:10:01] <JT-Shop> this part is 3/4" thick and I ended up with a slip fit anyway
[19:11:26] <archivist> we have polished hammer faces for that work too
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[19:12:43] <archivist> if you get it right the outer lip of the old hole burrs upwards a weeny bit so when its filed back nothing shows
[19:12:56] <JT-Shop> cool
[19:14:05] <archivist> a taper broach helps there to round the hole first ( from both ends)
[19:16:43] <JT-Shop> I did a combination of loc tite and peen tight
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[19:28:08] <Tom_itx> JT-Shop, half thousandth to .001 should be nice and tight
[19:28:28] <Tom_itx> are you gonna freeze it in place?
[19:34:56] <JT-Shop> I could not hold that tolerance on the old Samson lathe so I used loc tite and a ball peen hammer
[19:35:12] <syyl_> ball pain?
[19:35:13] <JT-Shop> plug done, new hole in place I'm a happy guy
[19:35:29] <JT-Shop> what you get when you loose the bull fight
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[19:38:08] <syyl_> ah ok
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[20:26:34] <zeeshan> JT-Shop: something to note is with drill bits -- when you measured the drill hole of .3595, it might have been ovalled out in reality
[20:26:41] <zeeshan> by a couple thou
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[20:26:51] <JT-Shop> yea I know
[20:26:52] <zeeshan> so usually you have to ream the hole first, then measure
[20:26:53] <zeeshan> then plug
[20:27:14] * JT-Shop says screw it I'm going for a bike ride in the woods
[20:27:25] <zeeshan> and a force fit is about intereference of 0.0015
[20:27:27] <zeeshan> "
[20:27:33] <zeeshan> ultra force!
[20:28:26] <PetefromTn_> jeez man
[20:28:40] <PetefromTn_> just got a call from a friend I used to work with in that shop.
[20:28:52] <PetefromTn_> he said he has something he wants me to machine for him
[20:29:07] <PetefromTn_> only problem is he said it is copper
[20:29:12] <PetefromTn_> I hate copper.
[20:29:15] <PetefromTn_> LOL
[20:32:18] <zeeshan> why
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[20:37:37] <PetefromTn_> makes a mess of the machine LOL
[20:41:40] <syyl_> it makes a mess of the tools :(
[20:41:53] <syyl_> its kinda abrasive and gummy and crapy and bla
[20:41:53] <syyl_> :D
[20:44:15] <CaptHindsight> PetefromTn_: a friend eh? So your machine rather than his.
[20:46:30] <CaptHindsight> anyone want to tap all my 6051 for me? :p
[20:47:41] <syyl_> here, me!
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[20:48:01] <syyl_> tie it to a pigeon and let fly it over to me
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[20:48:51] <CaptHindsight> European or African pigeon? :)
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[20:49:14] <syyl_> european! they feel home in germany
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[20:53:00] <CaptHindsight> http://www.youtube.com/watch?v=1nrJJDsbSOg anyone try one of these? Mega Synchro Tapping Holder
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[21:28:40] <Deejay> gn8
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[21:51:57] <zeeshan> http://www.tormach.com/store/index.php?app=ecom&ns=prodshow&ref=32021
[21:51:58] <zeeshan> CaptHindsight: ^
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[21:55:19] <JesusAlos> hi
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[21:56:25] <JesusAlos> I looking for the pin or signal to know the velocity in mm/min
[21:56:52] <JesusAlos> only found in units machine, but need mm/min
[21:57:22] <JesusAlos> motion.current-vel is for units machine
[21:57:36] <CaptHindsight> zeeshan: you like dat one?
[21:57:43] <JesusAlos> wha't for mm/min?
[21:58:14] <zeeshan> yes
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[22:01:12] <CaptHindsight> zeeshan: howizit in 6061?
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[22:23:07] <PetefromTn_> CaptHindsight Man those tapping heads look nice. I wondered how they measured that thrust forces in both directions during the video tho.
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[22:29:35] <CaptHindsight> PetefromTn_: with a load cell on the z-axis
[22:29:46] <PetefromTn_> aah
[22:30:04] <PetefromTn_> looks like a nice setup but Big Kaiser is known for making some good tooling ideas come to life
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[22:30:39] <CaptHindsight> they are local for me as well
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[22:37:46] <PetefromTn_> nice maybe they can get you a discount then LOL?
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[22:39:51] <chopper79> Good day all, Since the jog pendant issue I was having is fixed now. I have been able to go on to some actual testing. Any of you have an idea on why I can jog the machine all around in any axis and return to zero and it actually be dead on zero, but when I run a code that is nothing more then linear drill pattern the spacing is off more and more per hole?
[22:41:18] <chopper79> Example is drill pattern on X axis with holes drilled in a straight line 1.5" on center. The first 2 are fine then the holes progressively get more room between them. The code will end and the machine will go back to zero and it is dead on zero
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[22:42:06] * JT-Shop needs to get back into the habit of riding a few times a week
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[22:43:01] <chopper79> All tests with indicator show nothing that would result to this happening. I guess you all will also need to know that this is a servo system with encoders using 5i25 7i77
[22:44:31] <chopper79> I was thinking that the PID needed tuning some more so I followed JT's tutorial and adjusted the x axis PID to produce some similar readings as shown in the write up. This did not help out at all with the results produced.
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[22:46:42] <chopper79> Only difference is it seems I needed to add a great deal of FF1 to the setup to get the ferror graph to show decent. In the write up it says 0.03% of P for FF1 (his setup anyway) and I am more along .8% of P
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[22:48:27] <chopper79> And FF2 is about .05% of P instead of .003% as stated(his setup). I know that the write up is just some basic guidelines and all setups will be different. Just not sure if this is normal or not as Y and Z axis show good ferror graphs without any FF1or FF2
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[22:50:33] <chopper79> Values are P = 200, FF1 = 1.76 FF2 = 0.006. No I, D, FF0, Bias, or deadband tuning at all.
[22:50:56] <chopper79> This produced a smooth graph like was shown in the tutorial.
[22:51:56] <chopper79> When code is running the DRO shows the correct position but the position is off as stated before. Lost and need some help please
[22:53:48] <JT-Shop> chopper79, I'd say your scale is wrong
[22:54:30] <chopper79> ok, 500ppr encoder x 4 = 2000 x 5tpi = 10,000 scale
[22:54:52] <cradek> is the spindle running when you're testing with jogging? all kinds of noise can interfere with the encoders
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[22:56:16] <chopper79> can position with a .0001 indicator and be dead on every time. Just is off when running code. Yes spindle is on when running code but not jogging. Did not think of trying that.
[22:56:55] <JT-Shop> have you ran the length of your travel by G code and measured how far you moved?
[22:58:21] <chopper79> No just jogged the length from set zero to end of travel and measured. Shows correct measurements with tape measure as I don't have a set of 34" calipers. Wish I did :)
[22:59:32] <chopper79> cradek: Would the noise injected from the spindle reflect on the DRO if the encoders were being interfered with?
[23:00:07] <cradek> it will cause the dro to no longer accurately say where the table is
[23:00:12] <cradek> so it depends
[23:00:14] <chopper79> got ya
[23:00:32] <chopper79> I will try that tomorrow also
[23:00:46] <JT-Shop> do you have shielded wire on the encoders?
[23:00:47] <cradek> if linuxcnc is commanding movement, the actual motion will be wrong - but the dro will say what is commanded
[23:01:15] <cradek> if linuxcnc is not commanding movement the table will actually move itself (pid will make the encoder count stay right)
[23:01:16] <chopper79> Yes shielded wiring on encoders, motors, and all data lines
[23:01:18] <SpeedEvil> But - wait
[23:01:29] <cradek> I wasn't clear on what behavior you were seeing
[23:01:31] <SpeedEvil> If it was spindle interference - it wouldn't go back to zero on zero
[23:01:41] <cradek> what is "it"
[23:01:57] <SpeedEvil> I should probably read all backscroll
[23:02:03] <asah> chopper79: have you captured a long slew on halscope?
[23:02:15] <asah> you can set the multiplier up, so you can gather more points.
[23:02:29] <asah> your following error may increase on longer moves.
[23:03:01] <asah> if you have issues on relative moves of different lengths.
[23:03:36] <asah> but if you are absolutely off by a scalar, I would second the “ENCODER_SCALE is wrong argument"
[23:04:15] <JT-Shop> chopper79, your shield wire is grounded only on one end?
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[23:04:49] <chopper79> No its not as I was reading and it said not to unless I needed to. First servo system so I am following others advice
[23:05:10] <asah> you could check by zeroing, then entering a single G0 X 2 or something. go back to zero, then try x4, x0, x6, x0,x8,x0,x10
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[23:05:27] <asah> then check with a single x0, x10
[23:05:28] <cradek> shield is not grounded at all? it should be (on the computer end)
[23:06:00] <chopper79> I will ground the shield then also.
[23:06:31] <asah> try the same thing with and without spindle on.
[23:06:35] <chopper79> asah: I will run this test. But it seems to be the same as me just jogging at full speed and returning to zero
[23:07:48] <asah> its systematic at least. you can run it from a file.
[23:07:55] <chopper79> So if the scaling is off then I will adjust that but I believe my math is correct. Unless the ball screws are not 5 tpi
[23:07:58] <asah> check it with various setups.
[23:08:50] <chopper79> should be 5tpi based on measuring them, but if scale was off then I could not position back to 0 every time correct?
[23:09:10] <mutilator> omy
http://insidemovies.ew.com/2014/08/11/robin-williams-dead-at-63/
[23:09:13] <asah> no, you would be fine going back to zero
[23:09:35] <asah> problem would show up at the large end of moves.
[23:09:55] <asah> all linearly off by some multiplier
[23:10:07] <CaptHindsight> the scale can be off and return fine to zero, scale just matches machine units to real world units of measurement that you choose
[23:10:29] <chopper79> Ok, makes sense.
[23:10:32] <chopper79> BRB pizza is done
[23:10:51] <asah> yeah, what CaptHindsight said.
[23:10:54] <LeelooMinai> mutilator: Heh, I wonder what "suicide due to asphyxia.” even means...
[23:11:12] <mutilator> swung from the rafters
[23:11:18] <LeelooMinai> He was suffocating and decided to kill himself?
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[23:12:03] <asah> carbon monoxide in a garage?
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[23:12:21] <LeelooMinai> That would be "by" not "due"
[23:12:38] <CaptHindsight> ballscrews might not be 5tpi, or the encoders might not be the expected counts per rev
[23:12:43] <JT-Shop> chopper79, make sure you ground it on one end only or you will create a current loop
[23:13:11] <Jymmm> OH MAN =(
http://insidemovies.ew.com/2014/08/11/robin-williams-dead-at-63/
[23:13:45] <CaptHindsight> if it was encoder noise then he probably would be returning exactly back to zero unless he produced the same noise going both directions
[23:13:48] <JT-Shop> hmmm 5mm pitch is almost 5tpi
[23:13:58] <CaptHindsight> would be/would not be
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[23:15:25] <CaptHindsight> if it's noise then the more he moves back and forth the more error he'll get and not be back to zero after his moves
[23:15:45] <asah> CaptHindsight: agreed
[23:15:46] <tjtr33> cosine err can return to 0 also with same counts. cosine err is when motion is slightly skewed to desired direction.
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[23:17:40] <asah> chopper79: if the problem is encoder_scale, then you can take your multiple from moving out to the end of your travel and multiply your current encoder_scale * commanded_distance / actual_distance_traveled
[23:19:33] <CaptHindsight> I just thinking of theoretical conditions that could produce the same noise in both directions, it would have to be some accurate noise source (60hz AC) or noise synced to the encoder in some way, highly unlikely
[23:19:56] <tjtr33> is the error repeatable with same program ( hole position error is same )?
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[23:20:14] <CaptHindsight> so it's more likely that his screw pitch is slightly off
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[23:21:03] <tjtr33> " The first 2 are fine then the holes progressively get more room between them. The code will end and the machine will go back to zero and it is dead on zero "
[23:21:53] <CaptHindsight> we'll have to wait for pizza time to be over to find out :)
[23:21:54] <tjtr33> a linear scale ( glass scale ) that uis not aligned to axial motion will cause cosine err also ( not a rotary encoder )
[23:22:11] <tjtr33> oh pizza pizza pizza! ok
[23:22:43] <CaptHindsight> 500ppr encoder x 4 = 2000 x 5tpi = 10,000 scale
[23:22:45] <tjtr33> http://pergatory.mit.edu/kinematiccouplings/documents/Lecture_Notes/Topic%204%20Errors%20in%20precision%20machines.pdf
[23:23:04] <CaptHindsight> lets guess that he has a 5mm pitch screw vs 5 tpi
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[23:24:20] <Tom_itx> Robin Williams dead at 63...
[23:24:38] <asah> any idea what his machine is?
[23:25:05] <CaptHindsight> it's a 3 axis mill, it's in the backlog from a couple of days ago
[23:25:30] <Jymmm> Tom_itx: Sad, I gave link a few minutes ago.
[23:25:34] <asah> He didn’t say how far off his holes were.
[23:25:42] <asah> over what distance.
[23:25:51] <Tom_itx> missed it
[23:26:05] <Jymmm> Tom_itx:
http://insidemovies.ew.com/2014/08/11/robin-williams-dead-at-63/
[23:26:06] <CaptHindsight> if it's ~1.7% we'll know
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[23:31:30] <Jymmm> Tom_itx: quote from him… "I used to think the worst thing in life was to end up all alone, it’s not. The worst thing in life is to end up with people that make you feel all alone”.
[23:34:46] <chopper79> Ok, sorry everyone for the delay. I will not miss dinner time with my family. Make it s point to sit at a table and have dinner with them every night.
[23:34:51] <CaptHindsight> he's been battling depression and addictions for decades and unfortunately psychiatry is still in the dark ages
[23:35:21] <CaptHindsight> chopper79: how far of were the holes as you moved in one direction?
[23:35:24] <chopper79> Mill is a Kasuga 3 axis mill. Factory screws which are metric so that is probable where im off then
[23:35:41] <chopper79> The holes are out about .04-.06 detween each other
[23:35:50] <tjtr33> chopper79, was the error repeatable? were the holes in the same wrong place?
[23:35:55] <CaptHindsight> are you using mm or inch for the DRO?
[23:36:07] <chopper79> I can stick it in the same hoes every time all the time.....
[23:36:22] <chopper79> inch on DRO as I function in inches.
[23:36:44] <chopper79> so my conversion is off on the crews possibly.
[23:37:09] <CaptHindsight> how far are the holes from 0?
[23:37:17] <chopper79> holes not hoes, but same diffrence I guess
[23:37:21] <tjtr33> stepper or servo? ( position feedback or no position feedback) . if feedback, rotary encoder or linear encoder?
[23:37:45] <chopper79> holes are 1.5" inches apart on center starting from zero
[23:38:08] <tjtr33> ^^ desired/programmed, not measured
[23:38:11] <chopper79> servo, with rotary encoder on back of motor shaft
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[23:38:52] <chopper79> The code is written for 1.5" on center spacing
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[23:39:37] <chopper79> G81 X-1.5 Y0.0 R0.1 Z-0.25 F15.0
[23:39:41] <chopper79> X-3.0
[23:39:45] <chopper79> X-4.5
[23:39:48] <chopper79> etc.
[23:41:23] <JT-Shop> what does each hole measure from X0?
[23:41:35] <JT-Shop> more important did you save us any pizza?
[23:41:37] <CaptHindsight> are you off by ~1.7%? 25mm vs 25.4mm
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[23:43:34] <tjtr33> hmmm 1st 2 holes were correct, no pizza here, yes is error algebraic ?
[23:43:53] <chopper79> Holes 1st = 1.5, 2nd, = 3.0, 3rd = 5.06, 4th = 6.72
[23:44:29] <tjtr33> ! 5.06 not 4.5! woah
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[23:44:57] <tjtr33> can you wiggle the spindle around with your little finger or a sneeze ;)
[23:45:10] <CaptHindsight> logged off
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[23:45:15] <tjtr33> ^^ kidding
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[23:45:20] <chopper791> sorry back pidgin locked up
[23:45:27] <chopper791> what did I miss
[23:45:45] <tjtr33> ! 5.06 not 4.5! woah
[23:45:53] <tjtr33> can you wiggle the spindle around with your little finger or a sneeze ;)
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[23:46:00] <tjtr33> ^^ kidding
[23:46:00] <CaptHindsight> .........and that's how I'd fix it
[23:46:09] <CaptHindsight> lol
[23:46:46] <tjtr33> as Mork would say "Stay!"
[23:47:05] <tjtr33> thats a HUGE error
[23:47:10] <CaptHindsight> chopper791: do the holes come out at the same pacing every time?
[23:47:14] <chopper791> 1.5, 3.0, 4.56, 6.12
[23:47:14] <zeeshan> CaptHindsight: i dont own any of those compression/tension heads
[23:47:19] <zeeshan> i'd like to one day :D
[23:47:31] <CaptHindsight> zeeshan: ah
[23:47:34] <tjtr33> <chopper79> I can stick it in the same hoes every time all the time.....
[23:47:40] <chopper791> yes holes are the same every time
[23:48:00] <CaptHindsight> just making sure we're talking about the same thing
[23:48:05] <JT-Shop> chopper791, is is possible you have a 5mm pitch screw not a 5TPI? they are very close
[23:48:21] <chopper791> tjtr33: lol, yeah my typing sucks sometimes
[23:48:59] <chopper791> they are metric screws so I measured them and put in 5tpi. I am guessing they are off
[23:49:11] <tjtr33> forget the hoes thing, 1/2 inch is wackoi huhe, is the error of hole # 3 1/2 inch really?
[23:49:19] <tjtr33> wacko hughe
[23:49:22] <chopper791> no
[23:49:25] <tjtr33> i cant type either
[23:49:31] <chopper791> 1.5, 3.0, 4.56, 6.12
[23:49:37] <chopper791> typo
[23:49:37] <tjtr33> oh!
[23:50:02] <CaptHindsight> yeah thats about 1.6666666%
[23:50:15] <tjtr33> deltas are 0, .06, .06
[23:50:26] <chopper791> so going form a metric screw to inch conversion is maybe where im off then.
[23:50:30] <chopper791> from*
[23:50:39] <CaptHindsight> use 5m per rev vs 5 turns per 1 inch (25.4mm)
[23:51:03] <JT-Shop> 5TPI is 0.2" pitch and 5mm is 0.19685" pitch
[23:51:21] <tjtr33> ok but i dont see hole # 2 being correct given pitch error
[23:51:29] <chopper791> backlash
[23:51:34] <chopper791> maybe
[23:51:47] <chopper791> measured about .001 of backlash on X axis
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[23:51:59] <CaptHindsight> 3" + 1.7% = 3.051
[23:52:21] <chopper791> seems about right
[23:52:31] <chopper791> where did your 1.7% come from
[23:52:36] <chopper791> may have missed it
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[23:53:16] <CaptHindsight> 0.2" vs 0.19685" pitch
[23:53:17] <tjtr33> 25.4 / 25 = 1.016
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[23:54:53] <chopper791> So my scale is off due to the metric conversion
[23:55:10] <CaptHindsight> you were close
[23:55:44] <chopper791> close is for horseshoes and hand grenades.
[23:56:00] <chopper791> damn figures I missed something liek that
[23:57:27] <asah> whats your machine chopper791?
[23:57:49] <zeeshan> rip robin williams
[23:57:59] <chopper791> old scale is 10,000 based on 5tpi so new scale should be 10,160
[23:58:04] <chopper791> if I am correct
[23:58:14] <chopper791> Kasuga knee mill.
[23:59:02] <asah> I am setting up my maho to be metric. =)
[23:59:24] <chopper791> http://youtu.be/SHb9Q8-EX0A
[23:59:36] <chopper791> Like this
[23:59:36] <tjtr33> asah, using EXE boxes to get Heid scales -> TTL ?
[23:59:55] <asah> thats me
