#linuxcnc | Logs for 2015-10-25

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[00:13:55] <zeeshan> TekniQue: sorry wasnt here
[00:13:59] <zeeshan> i love the deckels :D
[00:14:14] <zeeshan> it uses sinumerik control the manual can be easily found on the net! :P
[00:14:38] <zeeshan> did you use the sintrain software?
[00:15:02] <t12> my hokey headstock aligner works better than expected: https://www.dropbox.com/sc/yppw3z66nb6vkyw/AAAJQPE-idALqBqqqpawR3TJa
[01:06:45] <XXCoder> t12: nice
[03:05:49] <Deejay> moin
[03:46:18] <justanotheruser> Am I just looking in the wrong places, or are hobbing machines all absurdly expensive
[03:46:56] <XXCoder> dunno
[03:51:35] <archivist> justanotheruser, usually silly prices, but now you can hob cheaply with a milling machine and linuxcnc
[03:52:07] <justanotheruser> you mean hob, or cut gears
[03:52:11] <archivist> does need to be a rigid machine and it will be easier if 5 axis
[03:52:32] <archivist> I mean hob, I hob and cut gears
[03:54:07] <renesis> hes got pics, ask him for pics
[03:54:12] <archivist> and now that the differential comp has been written helicals should be come easier
[03:54:33] <XXCoder> he also has pics of pics, ask him for pics of pics
[03:54:49] * archivist denies everything :)
[03:55:59] <archivist> I have a real hobbing machine with linuxcnc on it
[03:56:23] <archivist> http://www.collection.archivist.info/searchv13.php?searchv4page=1&searchstr=barber+colman
[03:57:51] <archivist> and part way through adding the spindle encoder to the 5 axis mill to enable hobbing
[04:00:47] <archivist> justanotheruser, better to say wa
[04:01:03] <justanotheruser> archivist: I'm confused why you would need 5 axis'
[04:01:05] <archivist> what type of gears you want to make
[04:01:58] <justanotheruser> For the moment only spur
[04:02:02] <archivist> on a helical the gear has angled teeth also the gear needs to rotate and the hob has a helix
[04:02:37] <archivist> you still need to account for the hob angle
[04:03:17] <archivist> a hobbing machine rotates the head to that angle
[04:03:33] <justanotheruser> So really when you say you need a milling machine, you mean you need a stationary drill facing downwards which will be orthoganol to the tailstock?
[04:04:08] <archivist> drill ?
[04:04:33] <justanotheruser> well something that rotates
[04:04:36] <archivist> a hob has a spiral cutting tooth
[04:04:54] <justanotheruser> which has to rotate
[04:04:59] <archivist> yes
[04:05:18] <justanotheruser> I see
[04:05:30] <archivist> it has a thread form so needs to be at a small angle (thread angle)
[04:06:43] <justanotheruser> $49K http://www.amazon.com/MechPro-more-YB3185H-Hobbing-Machine/dp/B00KCDB6CG/ref=sr_1_1?ie=UTF8&qid=1445761089&sr=8-1&keywords=gear+hobbing+machine
[04:06:44] <archivist> some cheat and put the table at an angle on a horizontal mill to get that angle
[04:06:50] <justanotheruser> better make some fancy gears
[04:07:14] <XXCoder> planium gears
[04:08:24] <archivist> no need to buy new http://www.ebay.co.uk/itm/Dowding-Doll-V8-gear-hobbing-machine-61-246rpm-with-equipment-3-750-00-Plus-/141445353665
[04:09:21] <justanotheruser> that looks like it is made to make massive gears
[04:09:57] <archivist> mine is for watch sized gears
[04:10:08] <archivist> http://www.ebay.co.uk/itm/PFAUTER-RS-00-Gear-Hobbing-Machine-with-Change-Gears-/271488723020
[04:10:23] <justanotheruser> that is yours
[04:10:41] <justanotheruser> I mean, not yours but the same model?
[04:10:43] <archivist> mine is max 1" dia
[04:11:06] <archivist> mine http://www.collection.archivist.info/searchv13.php?searchv4page=1&searchstr=barber+colman
[04:11:53] <archivist> too heavy for a one man lift but tiny in hobbing machine terms
[04:13:43] <Sync> if I had the space I'd get a rs00
[04:13:49] <Sync> it is a very nice machine
[04:14:02] <XXCoder> if its worth it, build a shed for it
[04:14:32] <archivist> eventually you run out of space for sheds :)
[04:14:43] <XXCoder> time ord tech
[04:14:45] <XXCoder> lord
[04:14:47] <justanotheruser> archivist: what constrains it to 1in max? Your gear cutter set?
[04:15:16] <archivist> the casting and height the head can be set
[04:15:55] <archivist> not much travel either so a limit to face width
[04:16:36] <archivist> it was designed as an auto loading small gear mass manufacture machine
[04:16:38] <Sync> yeah that one is tiny
[04:17:41] <archivist> first production off it when I got it running http://www.collection.archivist.info/searchv13.php?searchstr=speedo
[04:18:20] <justanotheruser> images take forever to load :(
[04:18:40] <archivist> serving off adsl line
[04:18:51] <justanotheruser> ...why?
[04:19:22] <archivist> because I can,
[04:19:47] <justanotheruser> your pictures need coins in them
[04:20:00] <archivist> actually a real server would cost quite a lot for the disk pace
[04:20:37] <archivist> countries have different coin sizes
[04:21:08] <archivist> http://www.collection.archivist.info/archive/DJCPD/PD/2009/2009_08_13_Watch_verge_escape/IMG_0272.JPG
[04:21:10] <XXCoder> just use mm
[04:21:18] <XXCoder> most mm is similiar in size
[04:21:29] <Sync> huh archivist, servers are cheap
[04:21:29] <XXCoder> and all mm (1" type) has same size gap
[04:21:43] <justanotheruser> now make a watch with dime gears
[04:21:57] <XXCoder> dime a dozen
[04:21:59] <archivist> Sync, for waged people maybe
[04:21:59] <justanotheruser> no idea how big the coin with the lady on it is, but that seems really small
[04:23:01] <archivist> I spent more time taking this pic http://gears.archivist.info/gears/IMG_1214_hires.JPG
[04:23:02] <justanotheruser> are these comparable in size http://www.collection.archivist.info/showresult.php?prog=1&srcprog=searchv13.php&srcdata=title&Type=PD&Accn_no=9438&subject=27340
[04:23:15] <justanotheruser> oh I remember that pic..
[04:23:24] <justanotheruser> amazing
[04:24:33] <justanotheruser> can you get that precision with a DIY setup combining a milling machine and a perpendicular mounted spindle?
[04:25:20] <archivist> those speedo gears are 8.9mm dia
[04:26:22] <Sync> well dunno archivist, if I had no money I'd get an ovh vps for 3.5€/mo and deal with the 10G I get or use their object sorage for even less
[04:26:43] <archivist> you need a rotary table set at the helix angle of the hob and spindle encoder and the correct path in gcode
[04:27:15] <justanotheruser> Digitalocean will give you basic VPS for $5/mo
[04:27:51] <archivist> I have 15gb on the web dir here
[04:28:31] <justanotheruser> they allow 20, but that is cutting it close
[04:28:40] <justanotheruser> not here to try to get you to move to a VPS though :P
[04:29:31] <Sync> yeah 15g will compress nicely if you just do a slight quality reduction on all the images tho
[04:32:13] <archivist> I lied, 66.2 gb
[04:32:30] <justanotheruser> mostly images?
[04:33:10] <archivist> the only extra I pay for is the fixed ip
[04:39:23] <archivist> a page I created in about 2006-7 http://www.collection.archivist.info/hobbing.html
[04:39:34] <archivist> now all possible
[06:23:41] * jthornton has fixed the terrible recent used in gtk file chooser for my program.
[06:55:23] <TekniQue> zeeshan|2: The thing is that the control are customised to the machine
[06:56:03] <TekniQue> I have a bunch of books, everything but the programming manual
[07:25:52] <jthornton> http://gnipsel.com/gtk/index.html
[07:28:54] <Sync> bah
[07:29:00] <Sync> damn vfd is still not talkative
[07:35:44] <jthornton> electro shock therapy is in order then
[07:51:04] <fenn> try candles and wine
[07:51:43] <XXCoder> http://www.eliomotors.com/come-along-on-the-journey-2/
[08:03:35] <Sync> dat rectangular tubing
[08:04:56] <Sync> too bad it is fwd
[08:05:53] <XXCoder> well it HAS to be fwd
[08:06:26] <XXCoder> you probably can do retrofit using motorcycle motor though, in rear
[08:06:38] <XXCoder> just not as good
[08:06:52] <XXCoder> one wheel slips you lose all power
[08:15:56] <jthornton> lol they are still selling reservations
[08:21:46] <Sync> XXCoder: it doesn't have to be fwd
[08:22:04] <XXCoder> whats left? all wheel?
[08:22:37] <XXCoder> bedtime later
[08:22:55] <XXCoder> ding me with answer so I can read it in highlight log lol
[08:27:02] <fenn> i would want a diesel electric series hybrid to have direct drive from the motor to the rear wheel (with a clutch of course) and electric motors on the front wheels
[08:27:16] <fenn> i guess that would be series/parallel
[08:28:36] <fenn> match the diesel motor power to slightly above the minimal needed power for cruise at highway speeds
[08:30:52] <Sync> XXCoder: rwd, of course
[08:31:33] <Sync> that's not what you want fenn, you need some power overhead for passing and elasticity
[08:31:45] <fenn> power for acceleration comes from the electric motors
[08:36:07] <fenn> if you're just going for maximum acceleration then use a rocket turbine
[09:23:32] <SpeedEvil> Shaped charge.
[09:28:03] <Topy44> hi
[09:29:06] <Topy44> i am still designing a quick-change system for our 3d printer, i went with locating pins in the end for positioning, now i am trying to figure out an elegant way to fix the plate to the base
[09:29:08] <Topy44> http://dump.t44.org/2015-10-25_15-04-01.png
[09:29:21] <Topy44> the upper plate is the removable one
[09:29:38] <Topy44> i need some kind of clamping mechanism or such... any ideas?
[09:30:21] <Topy44> how do commercial systems solve this?
[09:44:03] <fenn> magnets
[09:45:51] <fenn> bonus feature: if the printer head crashes, it falls off
[09:46:52] <archivist> magnets and a kinematic mount even better
[09:46:56] <fenn> with the locking pins maybe not
[09:47:07] <fenn> locating pins i mean
[09:49:45] <zeeshan|2> my the locating pins out of noodles
[09:49:50] <zeeshan|2> then it will fall off! :P
[09:49:59] <zeeshan|2> my = maker
[09:50:00] <zeeshan|2> sadjashklhsad
[09:50:50] <fenn> makernoodle
[09:50:54] <fenn> let
[09:50:59] <fenn> let's do a kickstarter
[09:51:19] <fenn> edible pasta creations for all
[09:51:34] <fenn> it will be like aluminum t-slot extrusion, but made of pasta
[09:52:04] <zeeshan|2> lol
[09:59:13] <Topy44> instead of a 3d printer that prints edibles make an edible 3d printer. yeah. i like it.
[09:59:35] <Topy44> fenn: same idea was mentioned in another channel where i asked, i do like that idea
[09:59:50] <Topy44> one question: how do i glue in the magnets? the head can get a bit warm (maybe 50°C or so)
[10:00:00] <Topy44> not so hot the magnets derate too much
[10:00:19] <archivist> Topy44, press in
[10:00:24] <Topy44> hm
[10:02:07] <Topy44> and yes, i do like the idea that if it crashes it might just fall off instead of self-destructing :)
[10:02:59] <Topy44> what should i use for the other side? a piece of steel? another magnet?
[10:03:12] <Topy44> (the construction itself is all aluminium and stainless steel)
[10:04:11] <zeeshan|2> archivist: my chuck is made in uk :D
[10:04:41] <zeeshan|2> http://i.imgur.com/ZIczyMv.jpg
[10:04:55] <zeeshan|2> http://i.imgur.com/oaEF24i.jpg
[10:04:58] <zeeshan|2> heard of this company?
[10:06:29] <archivist> yaknow one could put the writing up the right way!
[10:06:49] <zeeshan|2> no your website is slow in downloading pics
[10:06:52] <zeeshan|2> i make you suffer as well! :P
[10:07:03] <Tom_itx> or even rotate the pic if you're too lazy to spin the spindle!
[10:07:10] <zeeshan|2> bahahha
[10:07:24] <archivist> http://www.kitagawaeurope.com/power-chucks
[10:08:30] <zeeshan|2> i foudn the website
[10:08:33] <zeeshan|2> but have you heard of em?
[10:08:34] <archivist> I think a japanese company I wonder if they bought one of the british chuck makers
[10:08:34] <zeeshan|2> i havent
[10:08:42] <archivist> yes
[10:08:45] <andypugh> When writing the binary hybrid iso, how long would would the dd stage normally take?
[10:08:45] <zeeshan|2> cause its stamped w/ "UK" on it
[10:09:25] <archivist> there were a few good british chuck makers, likely they bought one
[10:09:50] <andypugh> Ah, forget that question, the second attempt took a few minutes. The previous attempt took 2 hours to write 300MB of the 1.2GB
[10:10:13] <zeeshan|2> jeez :P
[10:10:16] <Tom_itx> kick start it next time
[10:11:17] <Tom_itx> zeeshan|2, you lookin for jaws for it?
[10:11:31] <zeeshan|2> yes
[10:11:40] <zeeshan|2> but gonna buy right now
[10:11:44] <zeeshan|2> but just researching
[10:11:50] <zeeshan|2> i havent paid much attention to the mechanical stuff
[10:14:00] <archivist> that made me look at my starturn lathe chuck but it is a Yamakawa
[10:15:10] <zeeshan|2> http://i.imgur.com/7GlBCCi.jpg
[10:15:14] <zeeshan|2> i wonder how much i can sell these relays for
[10:15:16] <zeeshan|2> useless to me
[10:15:22] <zeeshan|2> i like the din style wago
[10:16:43] <Tom_itx> 2 different types
[10:16:48] <zeeshan|2> yes
[10:17:08] <zeeshan|2> i dont like how big they are
[10:17:11] <zeeshan|2> very old school :P
[10:17:19] <anomynous> schunk had a cool chuck. You could press a button and remove/insert jaws freely
[10:27:03] <archivist> zeeshan|2, sometimes have to be big for the contact rating
[10:27:17] <zeeshan|2> those wago ones are 30A
[10:27:20] <zeeshan|2> max
[10:27:23] <zeeshan|2> and they're tiny!
[10:27:27] <zeeshan|2> like .625 wide
[10:38:03] <Sync> zeeshan|2: those are cheap relays
[10:38:10] <Sync> new under $6 at farnell
[10:38:10] <zeeshan|2> are they
[10:38:16] <zeeshan|2> link
[10:38:44] <Sync> http://de.farnell.com/webapp/wcs/stores/servlet/Search?st=omron+my2&catalogId=15001&categoryId=700000006250&langId=-3&storeId=10161
[10:39:05] <Sync> they have gotten a tad more expensive, but I ordered similar ones for less
[10:39:08] <zeeshan|2> 6.44 euro
[10:39:18] <zeeshan|2> so 9bux canadian
[10:39:19] <Sync> for one
[10:39:25] <zeeshan|2> i just want $50 us for em
[10:39:26] <zeeshan|2> :)
[10:39:29] <zeeshan|2> therees a lot
[10:39:44] <zeeshan|2> i might actually give them to my friend
[10:39:51] <zeeshan|2> lets see if he can use em
[10:40:45] <Sync> http://ecx.images-amazon.com/images/I/51VTz0Ej1OL._SX425_.jpg zeeshan|2 explain this shit to me, why would someone install that crap
[10:41:39] <zeeshan|2> no idea what that is
[11:02:23] <Sync> zeeshan|2: aftermarked lsd "kit"
[11:07:37] <zeeshan|2> oh god
[11:07:38] <zeeshan|2> haha
[11:07:42] <zeeshan|2> might as well weld your diff
[11:09:21] <Sync> I mean, I actually engineered something similar
[11:09:24] <Sync> but with actual ramps
[11:10:14] <ssi> zeeshan|2: we welded the diff on a car once
[11:10:18] <ssi> it was miserable to drive
[11:10:51] <zeeshan|2> lol
[11:10:56] <zeeshan|2> drifto
[11:11:12] <pcw_home> fine if you never turn
[11:11:46] <ssi> yep, chatters and hops all over the place when you turn
[11:12:00] <Sync> not if you doriftoooooo
[11:12:08] <ssi> it didn't have enough powertodoriftoooo
[11:12:22] <ssi> we also cut the roof off with a sawzall
[11:12:40] <Sync> > not enough power
[11:12:47] <Sync> you mean it had too much traction
[11:13:09] <ssi> no, I'm not that optimistic :)
[11:13:42] <Sync> put some 20 year old winter asphalt cutting discs on it and most any car will be able to break traction
[11:14:35] <ssi> found it
[11:14:35] <ssi> https://scontent-dfw1-1.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/298358_4083905650700_424390471_n.jpg?oh=5f95d076f4cc61b36f11a5ab782a8cb3&oe=56C182AB
[11:14:39] <ssi> bam
[11:22:47] <JT-Shop> ssi, got a very basic GUI added lol
[11:59:57] <anomynous_> ssi if you dont have enough power, you steer and then counter steer with gas pedal to drift ;D
[12:00:27] <anomynous_> or then you just need moar speed
[12:02:36] <anomynous_> lesson. always drive straight untill you go fast enough to side slide turns with your welded rear underpowered race car
[12:02:55] <anomynous_> or maybe not
[12:02:57] <anomynous_> :]
[12:18:44] <anomynous_> after i got my license i went to ice track with my father and he would randomly pull the hand brake at turns. Just for the sake of teaching me to counter steer. He also taught me how to reverse and turn the car on same lane fast without going back and fourth many times over. Not very useful today. Except for being dangerous in traffic ;D
[12:26:01] <archivist> with each new to me vehicle I go out in the snow/ice to practice on the roads, wonderful fun, becomes harder to lose control because you get used to catching the skids
[12:27:00] <archivist> be careful if you try that in a 4wd, you arrive at bends without enough braking distance
[12:33:02] <anomynous_> well, 4wd doesnt stop any faster. Just accelerates. With two wheels instead of one ;D
[12:33:35] <anomynous_> i once drifted out of road when playing two lanes going in one direction and empty road ;D
[12:33:48] <archivist> so much more traction it is easy to get very fast
[12:34:15] <anomynous_> and then i would be smiling like a happy boy at road side stopping cars and asking if they have a tow rope ;D
[12:35:53] <archivist> and you can bend a landrover wing on a large snowdrift in the middle of the road...dont ask me how I know
[12:36:02] <andypugh> Last winter I was driving along perfectly happily in about 1mm of snow (just enough to paint the road white) when I decided, on a whim, to check that I could brake. I found that I couldn’t. Nothing bad happened, but I slowed right down and eventually had to abandon the car (4x4) on the first significant incline. The road was a lot colder than the snow, it was freezing into ice.
[12:36:16] <anomynous_> ah i belive thats possible
[12:36:56] <anomynous_> its also possible that you can cross the snow bench by going fast over it. First over yanks the car left, and then back straight when right tires go over
[12:37:01] <andypugh> Driving up the hill, slower, slower, slower… sliding down the hill backwards, no control at all…..
[12:37:04] <anomynous_> if going too slow over it would end up in ditch
[12:37:05] <anomynous_> ;D
[12:37:27] <anomynous_> aaaa
[12:37:42] <anomynous_> andypugh has been driving heavy equipment?
[12:38:06] <andypugh> Not for a long time, and never in snow. We had a JCB at one point.
[12:38:12] <archivist> andypugh, I got half stuck like that, left the wheels spinning slowly the warmed the road surface enough to make slow progress till I was up the hill
[12:38:41] <archivist> that was in a mondeo
[12:39:11] <andypugh> To be honest I wasn’t that keen to be at the top of the hill, as it was follwed by a very narrow downhill road with dry stone walls and ditches.
[12:39:55] <archivist> I needed to get to the top, there it levelled out, didnt fancy the reverse
[12:41:45] <andypugh> You can’t really see that this is moderately steep downhill. It wasn’t my car, either. Imagine it with no grip… https://goo.gl/maps/N4yN9hjVENu
[12:42:15] <andypugh> (the ditches are deep, and that’s a little bridge ahead)
[12:43:18] <archivist> google maps is a javascript phail on this browser
[12:43:59] <andypugh> There used to be rather more dry-stone walls until someone brought a low-loader with a crane on top down there. (Ignoring many warning signs)
[12:48:13] <Tom_itx> https://www.google.co.uk/maps/@53.614025,-1.9164539,3a,75y,177.96h,92.95t/data=!3m6!1e1!3m4!1sq3W9IoFbwXyKHLFmVu-bjA!2e0!7i13312!8i6656
[12:48:19] <Tom_itx> how much narrower could it get?
[12:54:50] <MrSunshine> hmm do i want high volume or high preasure when moving dust from wood working machines ?
[12:55:10] <andypugh> Follow the road down to the left. The low-loader finally jammed at the white-painted house.
[12:55:16] <Tom_itx> i did
[12:55:52] <andypugh> It isn’t that is it narrower there, as such, but that the walls are backed by earth and won’t move….
[12:56:16] <Tom_itx> all your roads are narrow :)
[12:56:47] <Tom_itx> that looks single lane at best
[12:56:49] <andypugh> That lane is unusually narrow even for the UK.
[12:57:33] <andypugh> Yes, if you have a wider than normal _car_ you have problems.
[12:58:58] <anomynous_> archivist, saw some russian truck driver doing the same thing ;D I thought he didn't care much for his tires.
[13:00:17] <anomynous_> (he could have backed and shifted his position a bit left or right for better traction on snow instead of packed snow/ice)
[13:00:43] <anomynous_> but backing can be tricky too. You can't really use brake or front will lock and you lose steering. and if you go wrong, you cant go forward
[13:00:57] <archivist> I was leaving the engine at tickover, being gentle
[13:07:15] <anomynous_> with a truck if it looks like you go to a stop in icy hill, what you can do, is right before you stop, you shift in reverse and reverse back without touching brake
[13:07:31] <anomynous_> might have to go fast ;D
[13:07:49] <anomynous_> never had to do that
[13:08:10] <anomynous_> once i put hand brake and was doing something and the car started sliding backwards because of tires melting ice
[13:08:15] <anomynous_> and not possible to go forward
[13:09:05] <anomynous_> when going backwards, its not possible to get the reverse in anymore.
[13:27:50] <anomynous_> http://www.rekkakuvat.fi/var/albums/vapaat-kuvat/tuttu-firma-tallakin-tiella.jpg?m=1381917657 i drove things like these for a while. Rear lip in car and exchangable container (like in pic). Pulling different carts from clients to terminal and vice versa and doing some distribution to areas where no terminal was nearby.
[13:28:00] <anomynous_> thing actually. not things.
[13:29:50] <andypugh> Must be exciting in the snow
[13:31:48] <anomynous_> for a while ;) i only drove for one winter, so not much experience there. The wagon has to be loaded so front has more weight and truck must not be too light or the wagon will start pushing the truck in front of it.
[13:37:44] <ssi> I'm really sick of brushing rust :(
[13:39:19] <andypugh> ssi: Juat loeave everything in a 10:1 water:molasses mix for 3 weeks or so.
[13:39:41] <ssi> waaat
[13:39:48] <ssi> I'd need a LOT of molasses for that
[13:40:10] <andypugh> I bought every tin in the shop when I did my Ner-a-Car
[13:40:31] <ssi> I'm working on a two post car lift
[13:40:33] <andypugh> But you can buy it from agricutural suppliers as they use it in bulk in silage (apparently)
[13:40:37] <ssi> the columns are 12x12x120"
[13:40:43] <ssi> I'd also need a hell of a bucket
[13:41:15] <andypugh> If you build a wooden coffin, line it with plastic and interlock the columns with each other it would work
[13:42:03] <andypugh> This is my Ner-a-Car chassis. https://picasaweb.google.com/lh/photo/fegbuaxZTo7wU_uY-ClZpNMTjNZETYmyPJy0liipFm0?feat=directlink
[13:42:05] <ssi> I just about have it all done
[13:42:57] <andypugh> Ah, well, OK. Bear it in mind for the future, it takes a long time, but it is zero effort, and the results are good.
[13:43:19] <ssi> gotcha
[13:43:29] <ssi> 3 weeks is longer than I want to wait too
[13:43:43] <ssi> I'm just knocking the surface rust off and painting with rustoleum
[13:44:41] <andypugh> So, I am going to have this part cast: https://picasaweb.google.com/lh/photo/uAlPT5kN2FhSu0Wyq8sHxdMTjNZETYmyPJy0liipFm0?feat=directlink
[13:45:20] <ssi> aluminum or iron?
[13:45:25] <andypugh> Should I make a core-box (a lot of work) or just leave the top solid in the casting and machine it out?
[13:45:28] <andypugh> Iron
[13:45:54] <andypugh> I am tending towards the “not making another blasted core box” policy
[13:46:04] <andypugh> (it’s a one-off, probably)
[13:46:08] <archivist> make a core else the shrinkage will dimple the thick areas
[13:46:27] <ssi> yeah I'd probably make a core box also
[13:46:28] <andypugh> It will be machined on all faces
[13:47:06] <andypugh> It would need to be two core boxes and they take literally days of machine time...
[13:47:06] <archivist> may need to stress relieve if you dont make a core
[13:47:34] <Sync> andypugh: or just get the chassis co2 blasted
[13:48:45] <andypugh> It would need to be two cores, and I am not sure how to support them.
[13:49:10] <Sync> small pins?
[13:49:23] <andypugh> Though I guess that the cores could only be the top “holes” rather than two complete L shapes
[13:49:58] <archivist> ask your foundry man
[13:50:19] <andypugh> archivist: Too sensible!
[13:50:40] <archivist> aw
[13:50:54] <Sync> hmm, do you have a nail gun? then making core boxes is easy
[13:51:16] <andypugh> Making _boxes_ is easy
[13:51:34] <andypugh> Making ones with all the required features is less so.
[13:51:41] <JT-Shop> I can think of hundreds of things I'd rather be doing than siding the shop
[13:52:14] <archivist> I remember on book I skim read that had chills too to adjust local cooling rates in a casting
[13:52:46] <andypugh> I have been wondering if my big casting will need chaplets
[13:57:56] <Sync> I guess you will find out :D
[14:01:18] <archivist> took me a while to find the title, Directional solidification of steel castings R Wlodawer Pergamon Press 1966
[14:03:47] <andypugh> This is the big pattern, and I am getting to the point where I have had enough…
[14:03:49] <andypugh> https://picasaweb.google.com/lh/photo/T6Ks0gmDHhdQE3IiTMoFAdMTjNZETYmyPJy0liipFm0?feat=directlink
[14:04:25] <andypugh> Still days of filling and sanding to be done on the core box. I think the pattern just needs paint.
[14:05:09] <archivist> keeps you out of the pub :)
[14:06:13] <andypugh> Literally. I skipped the department autumn pub-crawl to get an extra evening of patternmaking in.
[14:07:40] <JT-Shop> nice, what is it?
[14:09:12] <ssi> andypugh: oh wow that's a much bigger part than I was picturing
[14:09:50] <andypugh> It replaces the feeds gearbox on my Holbrook lathe with a servo mount and ballscrew bearing/drive
[14:10:52] <andypugh> It is paart-modelled in this picture: https://picasaweb.google.com/lh/photo/t30w7IzwpLdSNfPFP6orwNMTjNZETYmyPJy0liipFm0?feat=directlink
[14:10:58] <Sync> wouldn't a weld construction have been easier?
[14:11:34] <andypugh> Yes… But I didn’t realise how much easier when I decided on the casting
[14:11:50] <Sync> :D
[14:12:13] <andypugh> The casting makes it rather easier to get a stiff Z-screw mounting solidly connected to the bed
[14:12:48] <andypugh> I priced up a set of laser-cut parts and that was £120, the casting was quoted at £80
[14:12:55] <Sync> well, if you made it from 20mm al plate welded with full penetration you'd get the same effect
[14:12:58] <Sync> yeah
[14:13:05] <Sync> but you spend more than 40 quid on the box
[14:13:28] <andypugh> I can’t do full-penetration welds on 20mm Aluminium
[14:13:47] <andypugh> In fact I can barely weld aluminium at all
[14:14:45] <Sync> you can always chamfer the edge and do multiple passes
[14:16:37] <Sync> you'd get a lot of practice doing the piece ;)
[14:17:52] <andypugh> I would use more than £40 of Argon
[14:19:20] <Sync> I doubt that
[14:20:20] <Sync> but you would already have the part by now :D
[14:21:01] <archivist> you need a large welder too
[14:21:46] <Sync> my small 200A tig does it just fine, although it takes its time to heat up
[14:21:49] <archivist> I remember running a lot of current just for 5mm al
[14:21:52] <Sync> with helium it is so much nicer
[14:22:38] <archivist> 140 is about the tops on a home mains supply
[14:22:49] <Sync> o_0
[14:22:55] <Sync> maybe for 110V
[15:09:41] <zeeshan|2> boy
[15:09:44] <zeeshan|2> what a mission to move the car in
[15:10:41] <zeeshan|2> andypugh: nice lathe model!
[15:10:43] <archivist> did someone put a lathe in the way
[15:10:57] <zeeshan|2> what are those tapered shafts
[15:11:01] <zeeshan|2> archivist: haha
[15:11:09] <zeeshan|2> im so glad the lathe is where it is
[15:11:33] <zeeshan|2> http://imgur.com/a/RlUxN
[15:11:35] <zeeshan|2> laugh away
[15:11:36] <zeeshan|2> :)
[15:11:56] <andypugh> zeeshan|2: The tapered things are spring ballscrew covers
[15:12:00] <zeeshan|2> ah
[15:12:05] <zeeshan|2> that makes sense :)
[15:12:10] <andypugh> (or placeholders for)
[15:12:42] <zeeshan|2> the lathe and mill make good anchors
[15:12:48] <archivist> I like the wooden bridges
[15:12:52] <zeeshan|2> hahaha
[15:13:19] <zeeshan|2> i can work on the mill for sure with the car in
[15:13:25] <zeeshan|2> the lathe might be a bit tight, but i got space
[15:13:26] <archivist> I had wooden rails moving the CMM down the drive
[15:13:35] <zeeshan|2> you got pot holes too?
[15:13:51] <archivist> it is a but too rough for rollers
[15:14:45] <archivist> and easy to add spacers to level the planks
[15:15:31] <zeeshan|2> yes
[15:15:40] <zeeshan|2> i thiink thats the best combo..
[15:15:44] <zeeshan|2> if you have 2x4
[15:15:49] <zeeshan|2> and some steel pipe or solid
[15:15:58] <zeeshan|2> and a winch in the garage
[15:16:07] <zeeshan|2> or a bob cat or something like that pushing the machine up
[15:16:17] <zeeshan|2> if the egyptians could move those massive stones
[15:16:22] <zeeshan|2> we can move dinky little machines :P
[15:16:24] <archivist> levers, more gentle
[15:16:40] <zeeshan|2> thats true
[15:16:52] <zeeshan|2> i dont feel safe with alever only
[15:16:54] <zeeshan|2> cause im a weakling
[15:16:59] <zeeshan|2> if it slips, the machine might roll down
[15:17:06] <zeeshan|2> i like to strap it to something always
[15:17:15] <zeeshan|2> or block the rollers with a wedge
[15:17:31] <archivist> I put wedges to stop rolling
[15:18:28] <archivist> the dangerous bit was the out the van then drop a couple of feet
[15:18:51] <zeeshan|2> are pickup trucks not common up there?
[15:18:57] <zeeshan|2> i notice even in tv shows
[15:19:02] <zeeshan|2> its a lot of mercedes vans
[15:19:21] <archivist> white van man
[15:20:01] <zeeshan|2> haha
[15:21:55] <archivist> mercs, rusty transits and iveco with a bunch of badged vans nissan renault vauxhall
[15:22:06] <TekniQue> zeeshan|2: I'm machining the other side of that rotor today
[15:22:12] <TekniQue> almost done
[15:22:19] <zeeshan|2> nice
[15:22:21] <zeeshan|2> throw some pics up :)
[15:22:30] <zeeshan|2> youre so lucky youre using the 5 axis
[15:22:36] <zeeshan|2> thats a sweet machine
[15:25:03] <andypugh> zeeshan|2: You could wrap a rope round the lathe chuck then jog the car in, if you set up the C axis :-)
[15:25:15] <zeeshan|2> LOL
[15:25:31] <TekniQue> zeeshan|2: it's a 4 axis machine
[15:25:32] <andypugh> This is a more complete model of my lathe: https://picasaweb.google.com/lh/photo/WQFxCu0W_unhplIIXkv2CNMTjNZETYmyPJy0liipFm0?feat=directlink
[15:25:42] <TekniQue> but it's got two work tables
[15:25:45] <zeeshan|2> andypugh: im impressed
[15:25:48] <zeeshan|2> at how nice that looks
[15:25:55] <zeeshan|2> elite reverse engineering skills
[15:25:55] <zeeshan|2> :)
[15:25:59] <TekniQue> one inside the machine, one outside
[15:26:23] <andypugh> I am not 100% sold on mounting the jogwheels on the apron yet
[15:26:27] <TekniQue> so there's no downtime while loading/unloading stock in mass production
[15:26:56] <zeeshan|2> yes its a pallet based system
[15:27:02] <zeeshan|2> i used to fix those type of machines
[15:27:06] <zeeshan|2> very similar -- the emags
[15:27:30] <zeeshan|2> emag vl6 -- very common in europe
[15:27:32] <zeeshan|2> and up here too
[15:30:16] <TekniQue> this machine used to belong to prosthetics manufacturer Ossur
[15:30:43] <zeeshan|2> is it your machine
[15:30:47] <zeeshan|2> or your buddys cnc shop
[15:31:56] <Sync> zeeshan|2: buy some gojacks
[15:32:56] <TekniQue> zeeshan|2: a buddys
[15:33:02] <zeeshan|2> nice
[15:33:03] <TekniQue> no shop though
[15:33:25] <TekniQue> he's planning to start a machine shop with it
[15:42:41] <andypugh> I think Stuart has a machine you could machine my machine shop with.
[15:43:19] <Sync> heh
[15:44:59] <andypugh> Hmm, 16’ x 8’ is about the size of my garage, but the Z of 39” would be a bit low: http://www.mpm1.com/viper.html
[15:47:36] <Sync> I know a company that machines car prototypes out of ureol
[15:48:19] <andypugh> Sounds expensive
[15:48:51] <Sync> yeah, but cheaper than building real prototype for a show
[15:49:41] <andypugh> They seem to generally use clay on a foam core
[15:50:10] <archivist> andypugh, you could machine that on that DSG you found a while ago
[15:50:14] <Sync> often, but apparently for painting ureol is easier as you can source it easily that big
[15:50:38] <Sync> and it is one piece, for whatever reason that is important
[15:56:25] <archivist> andypugh, http://www.collection.archivist.info/archive/mirror/cnc/Travelling_Gantry_Machine.pdf
[16:16:53] <zeeshan|2> andypugh: jeez!
[16:16:57] <zeeshan|2> thats a serious machine
[16:17:13] <zeeshan|2> and archivist wow.
[16:17:14] <zeeshan|2> :P
[16:17:56] <zeeshan|2> ita funny how that machinei s masive
[16:18:02] <zeeshan|2> still looks like its using cat40/50
[16:18:03] <zeeshan|2> :)
[16:19:06] <Sync> bt50
[16:19:11] <Sync> yeah
[16:19:25] <Sync> but that is due to the 2 axis head
[16:19:32] <Sync> and yeah it is not a roughing monster
[16:23:21] <andypugh> What I like about that DSG is that it is basically a Mechmate. Welded frame and linear guides. It’s just a bit bigger than most.
[16:35:37] <PetefromTn_> she shure is puny ;)
[17:13:49] <TekniQue> zeeshan|2: https://scontent-ams3-1.xx.fbcdn.net/hphotos-xap1/t31.0-8/12189395_10153216404761662_7098902374720426396_o.jpg
[17:14:10] <XXCoder> nice
[17:14:16] <XXCoder> on yo side b eh
[17:14:20] <XXCoder> *to
[17:15:27] <Praesmeodymium> das a lot of work ofr a hubcap
[17:16:19] <XXCoder> thats better guess than my chip dip guess lol
[17:16:32] <Deejay> gn8
[17:21:26] <PetefromTn_> http://imgur.com/pOCO19I
[17:21:48] <Jymmm> Man, that looks like shit!
[17:21:58] <Jymmm> Should I click on the link now?
[17:22:01] <PetefromTn_> thanks man appreciate it
[17:22:07] <XXCoder> PetefromTn_: looks neat. too bad about straches on it
[17:22:52] * Jymmm clicks the link now...
[17:23:24] <Jymmm> APU... isnt't that the guy fro the quickymart?
[17:23:58] <PetefromTn_> dunno never been there ;)
[17:24:41] <PetefromTn_> its just mild steel exhaust manifold plate
[17:26:11] <Connor> PetefromTn_: How long did it take to engrave it?
[17:26:35] <PetefromTn_> the engraving takes just a minute or two
[17:26:48] <PetefromTn_> maybe 3?
[17:27:15] <PetefromTn_> it .030 deep with a .020 tip single flute so I can't go too fast with it.
[17:27:59] <Connor> Cool
[17:28:30] <PetefromTn_> does it look bad?
[17:28:42] <Connor> I don't think so.
[17:29:12] <PetefromTn_> heh
[17:31:56] <Connor> TekniQue: What is that for ?
[17:49:09] <TekniQue> Connor: water brake dyno absorber
[17:49:30] <TekniQue> both sides are done now
[17:50:38] <Connor> Cool
[17:55:51] <TekniQue> This was our first time using this machine
[17:57:34] <TekniQue> and I think we did okay
[17:58:24] <PetefromTn_> TekniQue looks real good man
[18:30:07] * JT-Shop hangs up the nail apron for the day
[18:37:39] <Akex_> Hy all
[18:38:21] <Akex_> The most important in latency is servo thread or base thread ?
[18:41:18] <JT-Shop> depends on the machine and hardware
[18:41:23] <JT-Shop> stepper?
[18:41:28] <JT-Shop> tell us more
[18:44:23] <Akex_> I use a dc servo
[18:44:37] <Akex_> But the driver is a step dir
[18:44:53] <Akex_> The same for stepper driver
[18:45:39] <JT-Shop> parallel port or hardware step generation?
[18:45:43] <Akex_> Dg4s
[18:45:48] <Akex_> Paralele
[18:45:59] <JT-Shop> base thread is important
[18:46:11] <JT-Shop> for software step generation
[18:46:15] <Akex_> Thanks JT-Shop :)
[18:46:44] <JT-Shop> np
[18:50:03] <Tom_itx> JT-Shop, you find the last piece of siding yet?
[18:50:11] <Tom_itx> or still lookin for it..
[18:50:32] <JT-Shop> on the north wall the last piece of lap siding just went up a few minutes ago
[18:50:39] * JT-Shop is a tired puppy
[18:51:32] <JT-Shop> now I need to put up the sheet stuff on the soffet
[18:51:42] <JT-Shop> or gable ...
[18:52:09] <JT-Shop> 320 sq ft on the north wall
[18:52:14] <JT-Shop> plus the gable
[18:52:22] <SpeedEvil> First project - external crane system.
[18:52:49] <JT-Shop> I have a crane for my scaffold
[18:52:56] <JT-Shop> used that to raise the trusses
[18:53:31] <JT-Shop> time for a bowl of Texas Red
[19:13:05] <Contract_Pilot> Odd order for 6 Cancled under my account under Wifes order for 4 shipped!
[19:16:27] <PetefromTn_> who's really good here with feeds and speeds in steel?
[19:19:04] <Praesmeodymium> Contract_Pilot: you have enough motors they decided
[19:19:16] <Praesmeodymium> I still havent heard anything about my order of 5
[19:21:55] <PetefromTn_> Don't everybody stand up at once now :D
[19:22:37] <Contract_Pilot> Google pete
[19:22:58] <Contract_Pilot> Or tool data sheet!
[19:23:10] <PetefromTn_> thanks
[19:24:08] * Tom_itx is too lazy to stand
[19:34:10] <PetefromTn_> running these YG1 V7 coated carbides thru this A36 plate full slot for the profile
[19:35:15] <PetefromTn_> right now about 3600RPM and 15IPM at .1833 DOC.... cuts look great but I am getting some squealing that I don't like. Gotta make a bunch of these plates so concerned about cutter wear
[19:35:37] <Tom_itx> 3600 might be a little fast
[19:35:45] <Tom_itx> for steel
[19:36:09] <PetefromTn_> that zero divide calculator I have been using says to run 5k at 28 LOL
[19:36:20] <Tom_itx> hmm
[19:36:26] <Tom_itx> it's usually pretty good
[19:36:59] <PetefromTn_> that is only .0013 IPT
[19:37:01] <Tom_itx> what ipt does that give you?
[19:37:33] <PetefromTn_> 3600 at 19 is the same .00138 IPT
[19:37:35] <Tom_itx> so what gives you the .0013 ipt at 3600?
[19:37:39] <Tom_itx> mmm
[19:37:58] <_methods> ayeah sounds like you're running too slow
[19:37:59] <Tom_itx> is 19 too fast for your machine?
[19:38:06] <_methods> depth of cut?
[19:38:06] <PetefromTn_> cuts look great but it starts to squeal a bit when in the middle
[19:38:17] <PetefromTn_> .1833
[19:38:24] <_methods> it's a full width slot?
[19:38:25] <PetefromTn_> Tom_itx what do you mean?
[19:38:30] <Tom_itx> doesn't sound too deep to me
[19:38:30] <PetefromTn_> yeah full slot
[19:38:45] <PetefromTn_> 3 passes down past .5"
[19:38:48] <_methods> well better safe on full slot
[19:38:54] <Tom_itx> how does 19ipm load your machine?
[19:39:00] <_methods> i'd take it slow then like you are
[19:39:05] <Tom_itx> if you have the hp, try it
[19:39:25] <PetefromTn_> I tried to run faster feed but it did not seem to help and I slowed the speed and it still squealed a bit
[19:39:27] <Tom_itx> how are the chips coming off?
[19:39:39] <Tom_itx> dry or coolant?
[19:39:41] <PetefromTn_> lookin a bit blue/dark blue
[19:39:44] <PetefromTn_> full flood
[19:39:46] <Tom_itx> that's normal
[19:39:52] <Tom_itx> carbide likes heat
[19:39:58] <PetefromTn_> some get a touch brownish
[19:40:16] <PetefromTn_> machine does not seem to mind any of it
[19:40:41] <PetefromTn_> I could go a lot faster or slower just trying to optimize
[19:40:56] <Tom_itx> cutter diameter?
[19:41:11] <PetefromTn_> .375
[19:42:31] <_methods> are you rampin in or plunging to depth?
[19:42:48] <PetefromTn_> neither
[19:42:53] <PetefromTn_> coming in from outside
[19:43:00] <Tom_itx> how hard is that steel?
[19:43:02] <Tom_itx> br
[19:43:08] <PetefromTn_> A36
[19:43:08] <_methods> how do you do that in a slot lol
[19:43:26] <PetefromTn_> well its the outside profile cut
[19:43:35] <andypugh> PetefromTn_: Have you tried fswizard?
[19:43:44] <PetefromTn_> material is just slightly larger
[19:43:50] <PetefromTn_> yeah
[19:44:24] <andypugh> I normally find it OK for me, once I turn the speed right down to suit my machine
[19:44:49] <andypugh> (my machine is stiff for the size, but a very slow spindle)
[19:44:55] <Tom_itx> i'd try a slower rpm keeping the ipt cut
[19:44:58] <Tom_itx> see what that does
[19:45:37] <PetefromTn_> okay I think I am at least close tho
[19:45:48] <Tom_itx> sounds like it
[19:45:54] <PetefromTn_> just don't like the squealing
[19:45:59] <Tom_itx> try 3k once and see
[19:46:19] <PetefromTn_> i have four more to finish tonight
[19:47:56] <Tom_L> http://www.emastercam.com/board/topic/63821-a36-steel-machining/
[19:48:05] <Tom_itx> that's what they say about it
[19:48:14] <Tom_L> .007
[19:48:19] <Tom_L> ipr
[19:48:27] <andypugh> Somone has found an intersting way to game eBay. He’s auctioning a list of parts for sale. http://www.ebay.co.uk/itm/Bridgeport-interact-308-auto-changer-milling-machine-and-manual-mil-machine-list/121792059520?_trksid=p5713.c100282.m3503&_trkparms=aid%3D333008%26algo%3DRIC.MBE%26ao%3D1%26asc%3D33412%26meid%3Dede703ab7e0a4e41b5cf1afd8d958471%26pid%3D100282%26rk%3D1%26rkt%3D12%26sd%3D331681462531
[19:49:18] <Tom_L> .375 4-flute Onsrud EM, 400SFM, 4080rpm, 51.0ipm, .003fpt
[19:49:29] <PetefromTn_> whats IPM?
[19:49:37] <Tom_L> inch per min
[19:49:51] <PetefromTn_> hard to say if that is full slot doubt it
[19:49:57] <CaptHindsight> idiots per Monday
[19:50:02] <Tom_L> sounds like you're not pushing it enough
[19:50:03] <Tom_L> maybe
[19:50:44] <XXCoder> jeez
[19:50:57] <Tom_itx> i've been out of production too long to pull it outta my head
[19:51:11] <PetefromTn_> http://imgur.com/mrsme5g
[19:51:55] <_methods> where's the slot?
[19:51:57] <Tom_L> you don't like the finish, is that it?
[19:52:14] <PetefromTn_> finish is fine. the slot is all the way around
[19:52:24] <_methods> ahhh
[19:52:50] <_methods> is it screaming once you get almost through?
[19:52:51] <Tom_L> the hole?
[19:53:00] <_methods> or all the time when youre in the cut
[19:53:14] <PetefromTn_> http://imgur.com/NNElMsN
[19:53:30] <PetefromTn_> mostly screams in the middle area on the outside profile
[19:53:51] <Tom_L> maybe it's lifting the edge and making noise
[19:53:52] <_methods> how are you clamping?
[19:53:58] <Tom_L> are you clamping the excess?
[19:54:09] <PetefromTn_> no excess falls away
[19:54:09] <Tom_L> that would cause it too
[19:54:14] <_methods> yeah
[19:54:23] <PetefromTn_> clamping with four 3/8-16 SHCS in the small holes
[19:54:24] <Tom_L> do you have room to clamp it?
[19:54:30] <Tom_L> i'd try that once
[19:54:36] <Tom_L> i see that
[19:54:51] <Tom_L> plug your ears
[19:54:55] <Tom_L> let it sing to you
[19:54:55] <PetefromTn_> using countersunk head shcs to center the holes
[19:55:04] <PetefromTn_> its not terrible
[19:55:15] <PetefromTn_> I just don't have a bunch of extra endmills here
[19:55:18] <PetefromTn_> for this run
[19:55:25] <PetefromTn_> and I was concerned about cutter life
[19:55:36] <Tom_L> we used to get squealing cutters all the time but we were using long cutters in deep pockets
[19:55:38] <PetefromTn_> finish in the slots and exterior looks pretty good really
[19:55:59] <Tom_L> what's the cutter look like?
[19:56:08] <PetefromTn_> like a cutter ;)
[19:56:14] <Tom_L> not dulling?
[19:56:26] <Tom_L> bump up the ipt a little bit
[19:56:29] <CaptHindsight> andypugh: ebay tends to take down auctions like that since ebay doesn't get a cut of the sale
[19:56:29] <PetefromTn_> yeah the first one or two dulled after awhile
[19:56:46] <_methods> you're going to get vibration clamping like that
[19:56:52] <_methods> nature of the beast
[19:56:55] <PetefromTn_> why?
[19:56:59] <Tom_L> PetefromTn_, you said carbide right?
[19:57:09] <PetefromTn_> YG1 V7 Tialn coated carbide
[19:57:11] <_methods> because you cant hold all that center area
[19:57:14] <CaptHindsight> I guess you might argue that he was only asking for potential buyers to contact him about what parts they are interested in
[19:57:17] <Tom_L> mmm
[19:57:20] <_methods> if you put a top plate on it would help
[19:57:31] <_methods> through those big holes too
[19:57:31] <PetefromTn_> that is doable
[19:57:37] <CaptHindsight> so he could list them as separate auctions
[19:57:40] <_methods> then you could apply some downard pressure
[19:57:45] <PetefromTn_> drill and tap holes center block down with plate
[19:57:59] <Tom_L> those bolts should be holding it down ok though
[19:58:10] <PetefromTn_> It is not going anywhere as it is..
[19:58:12] <Tom_L> i suppose the center could be vibrating
[19:58:14] <PetefromTn_> but there may be some vibes
[19:58:16] <_methods> yeah it will hold it fine for machining but it will vibrate
[19:58:25] <_methods> and cause premature tool wear
[19:58:40] <Tom_L> profile with a .500 cutter
[19:58:50] <PetefromTn_> looking at those plates pics how many would you say I should get from a 3/8 cutter?
[19:58:56] <Tom_L> all of em
[19:59:08] <PetefromTn_> 10?
[19:59:13] <Tom_L> at least
[19:59:22] <PetefromTn_> not so far LOL
[19:59:27] <_methods> that's a lot of linear machining for a solid carbide mill
[19:59:36] <_methods> you have any inserted cutters?
[19:59:57] <_methods> for an outside profile like that i try to use larger insert cutters
[19:59:59] <PetefromTn_> they really should be cut from a laser cutter but I got the job and don't have one LOL
[20:00:00] <_methods> and just wipe it all out
[20:00:08] <Tom_L> how many cutter did it take to get those 5?
[20:00:13] <PetefromTn_> 1
[20:00:18] <Tom_L> still good?
[20:00:22] <PetefromTn_> but I got more to do
[20:00:27] <Tom_L> how many more?
[20:00:31] <PetefromTn_> no swapped out halfway
[20:00:40] <PetefromTn_> using a new cutter now
[20:00:48] <PetefromTn_> hoping to get the rest of the way thru
[20:00:51] <Tom_L> try bolting the holes with a washer like he said
[20:01:00] <Tom_L> i don't think that's gonna help that much
[20:01:08] <PetefromTn_> keep in mind the first side milling was drilled then pocketed with the same cutter
[20:01:17] <Tom_L> check the old cutter under magnification
[20:02:02] <Tom_L> did you sand those edges?
[20:02:32] <PetefromTn_> no
[20:02:43] <PetefromTn_> 3m scotchbrite wheel
[20:03:00] <Tom_L> well they looked like you did _something_ to them
[20:03:18] <PetefromTn_> just the corner to knock the sharp off
[20:03:28] <Tom_L> right
[20:04:23] <Tom_L> how thick is that plate?
[20:04:31] <Tom_L> hard to tell from a pic
[20:04:49] <PetefromTn_> .5
[20:04:59] <Tom_L> so 4 passes?
[20:05:04] <Tom_L> 3 at best
[20:05:49] <PetefromTn_> 3 passes plus offset finish pass .01
[20:06:01] <_methods> that poor endmill lol
[20:06:18] <_methods> workin it's ass off lol
[20:07:11] <PetefromTn_> heh yeah it is
[20:07:41] <PetefromTn_> thats what they are for right!!
[20:07:47] <_methods> damn right
[20:08:28] <PetefromTn_> ooh 3100 sounds nice
[20:08:41] <Tom_L> i'd keep the same ipt
[20:08:46] <Tom_L> just lower rpm
[20:08:59] <PetefromTn_> that'd be like 10IPM
[20:09:05] <Tom_L> that'll push the cutter a bit more
[20:09:24] <Tom_L> or increase it like they did in the forum i posted
[20:09:53] <Tom_L> it's hard to give advice on a noise you can't hear
[20:10:21] <_methods> feedrate/spindle override to the rescue hehe
[20:10:54] <Tom_L> you need a feedrate widget on the side of your axis
[20:11:01] <PetefromTn_> hell yeah man
[20:11:07] <Tom_L> put one there
[20:12:12] <Tom_L> mmm i thought i added one but i guess not
[20:12:16] <Tom_L> just cycle times
[20:12:26] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/cnc/screenshot.png
[20:12:37] <PetefromTn_> welp 3 more to go!
[20:12:46] <Tom_L> doin better?
[20:13:06] <Tom_L> you went to 3.1k and slowed the feed too?
[20:13:17] <PetefromTn_> yeah 3100 sound much better
[20:13:32] <PetefromTn_> no well yeah just slightly
[20:13:37] <PetefromTn_> 14IPM
[20:14:01] <Tom_L> i think generally speaking you run the feeds up and rpm down on steel, ti etc
[20:14:23] <PetefromTn_> well yeah
[20:14:28] <PetefromTn_> I have cuts lots of steel
[20:14:29] <Tom_L> constant feeds on ti and ss so it doesn't work harden
[20:14:36] <PetefromTn_> just have not had this squealing like that
[20:14:49] <Tom_L> we mostly ran aluminum
[20:15:02] <Tom_L> had _some_ steel parts
[20:15:09] <Tom_L> ti
[20:15:15] <PetefromTn_> I MOSTLY machine aluminum here LOVE that shit LOL
[20:15:24] <Tom_L> a couple parts were tungsten
[20:15:26] <PetefromTn_> cuts like butter
[20:15:30] <Tom_L> those were a bitch
[20:15:49] <_methods> tungsten will work harden if you fart near it
[20:15:50] <XXCoder> bheh wish more jobs was alum herebut no its mostly hard metals or "other"
[20:16:06] <Tom_L> every time the cutter entered the material you thought the block was gonna shatter
[20:16:40] <Tom_L> these were like 2.5" x 5 x 8 or so blocks
[20:16:57] <PetefromTn_> never machined tungsten
[20:16:57] <Tom_L> you had to be careful lifting them
[20:16:58] <_methods> dats a chunk
[20:17:02] <Tom_L> from the pallet
[20:17:04] <PetefromTn_> machined about everything else
[20:17:13] <Tom_L> never try it if you're smart
[20:17:18] <XXCoder> PetefromTn_: seen videos on those? amazing.
[20:17:22] <PetefromTn_> copper,brass, ally, steel, stainless, ti
[20:17:27] <XXCoder> it cant be cooled by coolant or anytjhing
[20:17:27] <Tom_L> these were wing ballast for some plane
[20:17:32] <_methods> hastelloy and waspalloy are absolutely miserable too
[20:17:47] <PetefromTn_> we hard milled some inconel once
[20:17:49] <Tom_L> i was looking at my old iges & cad stuff and found the parts last night
[20:17:51] <PetefromTn_> ceramics
[20:18:13] <PetefromTn_> finish on sides looks good no?
[20:18:53] <Tom_L> i'll post a pic of the models
[20:18:57] <_methods> yeah we do a fair abount of inconel
[20:19:08] <PetefromTn_> that shit is HEAVY
[20:19:09] <XXCoder> lots inconel here
[20:19:15] <_methods> wire drawing plant next door uses it alot in there furnace
[20:19:22] <XXCoder> inconel eats tools.
[20:19:33] <XXCoder> PetefromTn_: https://www.youtube.com/watch?v=c1K5QjR3hyU
[20:19:48] <PetefromTn_> oh yeah 3100 at 14 is the shiznit ;)
[20:19:49] <malcom2073_> Inconel milling looks amazingly awesome
[20:19:52] <malcom2073_> Wouodn't wanna do it
[20:20:09] <XXCoder> its doing rough cut, more clean I suppose uses regular tools that will wear very fast
[20:20:40] <XXCoder> zee said if it ghas coolant spraying on it it will explode
[20:20:52] <XXCoder> special cermitic tools
[20:21:01] <XXCoder> those tools get harder with heat
[20:22:52] <PetefromTn_> really shoulda bought a coated carbide ball for these tapered wall pockets
[20:23:01] <PetefromTn_> my HSS ball is NOT liking it LOL
[20:23:14] <XXCoder> heh
[20:23:51] <XXCoder> inconel milling with cerminic tool https://www.youtube.com/watch?v=DO1PyDOHq2A
[20:24:41] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/ballast1.jpg
[20:24:45] <Tom_L> most of those were lead
[20:24:49] <XXCoder> lol smiley face
[20:24:57] <Tom_L> a couple were tungsten
[20:25:05] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/ballast2.jpg
[20:25:32] <PetefromTn_> http://www.ebay.com/itm/3-8-YG-1-V7-MILL-INOX-4-FLUTE-REGULAR-LENGTH-CARBIDE-END-MILL-QTY-5-/121010555435?hash=item1c2cca8a2b:g:UTUAAOSwGvhTz7IJ good deal
[20:25:59] <Tom_L> yeah if they're good quality
[20:26:06] <PetefromTn_> I like em
[20:26:14] <PetefromTn_> the shops here use them a lot
[20:26:25] <PetefromTn_> they're pretty cheap for what you are getting
[20:26:36] <PetefromTn_> thats what is cutting my parts now too LOL
[20:27:22] <XXCoder> interesting part https://www.youtube.com/watch?v=o12cYQvpwbU (it has boring ad intro)
[20:31:32] <Tom_L> coolant would probably shatter those
[20:31:40] <XXCoder> yeah
[20:33:35] <Tom_L> i used to have a couple of those fins around here somewhere
[20:33:50] <Tom_L> that were rejects from something.. not even sure where they came from
[20:34:29] <XXCoder> wonder if it works great on stainless too
[20:37:43] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/sample.png
[20:37:48] <Tom_L> hah, i forgot that was up there
[20:38:53] <XXCoder> nice and complex lol
[20:41:14] <andypugh> You can do hard turning on nearly any lathe, but you need a good mill to do it, I reckon.
[20:42:07] <XXCoder> can always put tool on spindle and part held on tool head
[20:42:36] <XXCoder> but yeah
[20:45:39] <PetefromTn_> two more to go! ;)
[20:46:12] <PetefromTn_> I like watchin' Star Trek while I machine parts at home with the family :D
[20:46:44] <PetefromTn_> Dacia's Makin' Brownies....Life is GOOD!!
[20:47:04] <Tom_L> heh
[21:07:39] * zeeshan|2 remembers why he doesnt let people borrow things
[21:07:53] <zeeshan|2> i let my friend borrow my plasma torch
[21:07:57] <zeeshan|2> and now i plug it in, and it doesnt work
[21:07:58] <zeeshan|2> hm
[21:12:31] <zeeshan|2> that inconel is getting owned by that insert
[21:13:34] <XXCoder> link I posted? yeah
[21:13:37] <zeeshan|2> yes
[21:13:50] <zeeshan|2> PetefromTn_: you machining those stainless flanges
[21:13:52] <zeeshan|2> ?
[21:18:18] <Praesmeodymium> under most englich based legal systems common law lending someone a tool forms a commodate (word I had to look up to find) and the user is responsible to return it in the same condition
[21:18:45] <Praesmeodymium> the things you learn watching judge judy
[21:19:49] <Tom_itx> puts a strain on friendship either way it turns out
[21:20:10] <Praesmeodymium> yeah
[21:20:43] <Wolf_> whats annoying is when they don’t tell you they broke it or it stopped working
[21:21:09] <Praesmeodymium> well they dont want to be on the hook for the item they couldnt afford in the first place thus the needing to borrow it
[21:22:27] <PetefromTn_> zeeshan|2 Yeah mild steel flanges
[21:22:31] <PetefromTn_> almost done
[21:22:35] <zeeshan|2> nice
[21:22:45] <PetefromTn_> do they look okay to you?
[21:22:51] <zeeshan|2> i didnt see the pic?
[21:22:58] <PetefromTn_> ah
[21:23:16] <XXCoder> I always try to return items I borrow BETTER than it was before
[21:23:31] <zeeshan|2> where is it
[21:23:32] <PetefromTn_> http://petefromtn.imgur.com/all/
[21:23:37] <PetefromTn_> oops
[21:23:40] <XXCoder> I dont understand people who think its fine to break borrowed thing and return like its nothing
[21:23:49] <PetefromTn_> http://i.imgur.com/pOCO19I.jpg
[21:23:52] <zeeshan|2> whos the blond? :)
[21:23:59] <zeeshan|2> dude that looks nice!!
[21:24:04] <PetefromTn_> http://i.imgur.com/mrsme5g.jpg
[21:24:08] <Wolf_> plasma cutters are a pain in the ass tho, can be small simple things that keep it from working
[21:24:12] <PetefromTn_> blond?
[21:24:18] <zeeshan|2> PetefromTn_: yea on your first link
[21:24:21] <zeeshan|2> can see all your pics :P
[21:24:40] <PetefromTn_> Oh that's my wife Dacia
[21:24:56] <zeeshan|2> you got a good looking wife
[21:24:57] <zeeshan|2> :)
[21:25:04] <PetefromTn_> hehe thanks
[21:25:09] <zeeshan|2> i guess that 45 degree insert works really well eh?
[21:25:18] <zeeshan|2> mirror like finish
[21:25:27] <zeeshan|2> howd you engrave that btw?
[21:25:32] <PetefromTn_> well I really did not get too scientific with it but it looks okay
[21:26:06] <PetefromTn_> engraving is with single flute carbide engraver .020 tip .030 deep 10IPM 5500RPM I think
[21:26:21] <zeeshan|2> looks great
[21:26:45] <PetefromTn_> I think so the engraving and everything looks decent
[21:27:02] <PetefromTn_> they look better than the ones they were buying if you ask me but they could be better
[21:27:19] <PetefromTn_> I have to make three 3 rotor ones here now after this small run is finished
[21:28:12] <zeeshan|2> hope youre asking a lot for em! :)
[21:28:18] <zeeshan|2> lots of metal removal
[21:28:25] <PetefromTn_> meh you can't really ask too much for them
[21:28:33] <zeeshan|2> 80-100bux?
[21:28:54] <zeeshan|2> how much is the metal
[21:28:56] <PetefromTn_> its not bad tho I don't have much time in them really I have just been draggin my feet with them lately LOL
[21:28:59] <andypugh> I wonder who it was who had the nerve to try faster and harder on strong materials? I recall it was a new discovery back in the mid 90s when I was working as a metallurgist
[21:29:10] <PetefromTn_> its A36 barstock 6X.5
[21:29:34] <PetefromTn_> I bought a 12foot stick for like $90
[21:29:45] <zeeshan|2> thats not bad
[21:29:45] <andypugh> Because somebdoy with a lot of cutters had to watxh that tool-life curve heading to zero and not believe it
[21:29:47] <zeeshan|2> heavy stick :)
[21:30:02] <PetefromTn_> yeah its kinda heavy until you cut the sucker LOL
[21:30:38] <PetefromTn_> I did have to make two different prototypes
[21:30:45] <zeeshan|2> wolf: any idea why im not getting pilot arc?
[21:30:49] <PetefromTn_> the first one they liked but made some changes
[21:30:52] <zeeshan|2> he told me he took apart the torch to reverse engineer it
[21:30:55] <zeeshan|2> i took it apart
[21:30:57] <zeeshan|2> and it looks okay..
[21:31:20] <Wolf_> safety switch in the head
[21:31:28] <zeeshan|2> where is that?
[21:31:33] <zeeshan|2> i only see a trigger
[21:31:38] <zeeshan|2> PetefromTn_: nice
[21:31:49] <zeeshan|2> as long as you're happy
[21:31:54] <zeeshan|2> its all good :)
[21:32:13] <Wolf_> on mine its a micro switch on the tip shield
[21:32:40] <zeeshan|2> http://www.everlastgenerators.com/product/plasma/powerplasma-50
[21:32:42] <zeeshan|2> this is what i got
[21:32:44] <PetefromTn_> I'm happy because I made some money and once they are done I will be making MORE money fabbing up the manifolds for turbo cars LOL
[21:32:45] <zeeshan|2> i shoulda bought a hypertherm
[21:32:49] <zeeshan|2> first china piece of shit garbage i bought
[21:32:52] <zeeshan|2> and its garbage after the 6th use
[21:33:37] <PetefromTn_> my brother in laws son has an everlast 250DX tig and he loves it actually. Had been using it daily for over 8 years now
[21:33:46] <andypugh> My cheap chinese TIG dies once, then the next time it worked fine, and since.
[21:33:46] <Wolf_> funny part, mine is a hypertherm, stopped working due to that switch, also use to cut out due to dirty contacts on one of the daughter board
[21:34:11] <zeeshan|2> it has to be the torch
[21:34:13] <zeeshan|2> he only had the torch
[21:34:19] <zeeshan|2> it took it apart and didnt do something right
[21:34:33] <zeeshan|2> http://forum.longevity-inc.com/attachment.php?attachmentid=3313&d=1312144031
[21:34:36] <zeeshan|2> thats what it looks like
[21:34:56] <zeeshan|2> http://forum.longevity-inc.com/showthread.php?3121-S45-plasma-torch-mod-for-CNC
[21:35:02] <Wolf_> see that red wire
[21:35:08] <PetefromTn_> not a lot to it
[21:36:05] <zeeshan|2> i see the red wire
[21:36:07] <zeeshan|2> what about it
[21:36:11] <zeeshan|2> it looks like its goging to the trigger
[21:36:16] <Wolf_> thats the tip switch
[21:36:57] <zeeshan|2> does that need to touch something always
[21:37:00] <zeeshan|2> and be closed?
[21:37:13] <Wolf_> looks like the trigger closes thru it and the metal in the tip
[21:37:15] <zeeshan|2> okay i think i see it
[21:37:18] <zeeshan|2> when you screw that black thing
[21:37:26] <Wolf_> yup
[21:37:28] <zeeshan|2> in which the copper thing goes into
[21:37:34] <zeeshan|2> it pushes against those red wire copper tip things
[21:37:35] <zeeshan|2> hmmmmmmmmm
[21:37:40] <zeeshan|2> i think that might be it!
[21:37:55] <zeeshan|2> let me go shock myself with 180vdc
[21:37:56] <zeeshan|2> brb
[21:38:50] <Wolf_> mine needs a new torch :/ shell is totally cooked on mine
[21:45:43] <Wolf_> ouch http://www.ebay.com/itm/Hypertherm-Duramax-25-Retrofit-Hand-Torch-228788-for-1000-1250-1650-/370891029411?hash=item565ad3fba3:m:m4_hBa8sBena8GpuMsWJEEw
[21:52:05] <zeeshan|2> doesnt work
[21:52:14] <zeeshan|2> like those switches were ok
[21:52:26] <zeeshan|2> if you try to take the black cover off and trigger the torch, it doesnt work
[21:52:31] <zeeshan|2> but when you put the black thing on, it works
[21:52:35] <zeeshan|2> i can hear the air going
[21:52:46] <Wolf_> hmm odd
[21:53:00] <zeeshan|2> its got a 3 year warranty left on it
[21:53:08] <zeeshan|2> im gonna get them to fix it
[21:53:10] <zeeshan|2> its near my work
[21:53:18] <Wolf_> that works :D
[21:53:28] <zeeshan|2> asap it works
[21:53:30] <zeeshan|2> im selling it
[21:53:35] <zeeshan|2> and buying a proper brand
[21:53:47] <zeeshan|2> something that doesnt stop working after 6 users
[21:53:48] <zeeshan|2> uses
[21:54:01] <Wolf_> hypertherm is pretty cool, they walked me though a field service test over the phone once
[21:54:11] <ssi> I've been happy with my hypertherm
[21:54:16] <zeeshan|2> nice
[21:54:22] <zeeshan|2> yea likely going to get hypertherm
[21:54:22] <zeeshan|2> brb
[21:54:28] <ssi> I sometimes wish it were a 65
[21:54:39] <ssi> but mostly it's quite adequate
[21:54:42] <Wolf_> only issue with them is $$$
[21:54:53] <Wolf_> mine is only 60A
[21:55:02] <ssi> mine's a 45
[21:55:16] <Wolf_> https://www.red-d-arc.com/pdf/Powermax%201000%20Spec%20Sheet.pdf
[21:55:24] <Wolf_> also old now lol
[22:21:46] <PetefromTn_> Last one almost done! Good too because I am about ready for sack time LOL
[22:46:08] <Tom_itx> same cutter?
[22:46:19] <Tom_itx> did the lower S help?
[22:47:51] <PetefromTn_> yeah same cutter finished the job!!
[22:47:59] <PetefromTn_> its actually still sharp too LOL
[22:48:00] <zeeshan|2> using the yg1?
[22:48:03] <PetefromTn_> so yeah it helped
[22:48:08] <PetefromTn_> yeah YG1 V7
[22:48:12] <zeeshan|2> nice
[22:51:56] <PetefromTn_> yup hopefully these will hold them over for awhile ;)
[22:52:12] <PetefromTn_> now I gotta finish the drawing for the 3 rotor ones and get them machined
[22:52:19] <PetefromTn_> but thats for another day.
[22:52:38] <Tom_itx> still using cambam?
[22:52:57] <PetefromTn_> yeah mostly
[22:53:06] <Tom_itx> what will it import?
[22:53:10] <Tom_itx> formats..
[22:53:31] <PetefromTn_> most things solidworks files .dxf dwg etc. etc.
[22:53:36] <PetefromTn_> I don't remember the list
[22:53:43] <Tom_itx> do you draw solids or flat patterns?
[22:53:48] <Tom_itx> mostly
[22:54:09] <PetefromTn_> mostly just 2d stuff because I have not had need for much else
[22:54:34] <PetefromTn_> My trusty Cincinatti Arrow 500 with LinuxCNC retrofit triumphs again!!!
[22:55:28] <Tom_itx> later..
[22:56:02] <PetefromTn_> later man