#robotics Logs
Dec 16 2017
#robotics Calendar
12:00 AM rue_mohr: Tom_L, I think the real hurtle will be
12:03 AM rue_mohr: what colour to paint it when its done.
12:03 AM anonnumberanon: Tom_L, tes, and?
12:03 AM anonnumberanon: yes, and?
12:03 AM rue_mohr: ("done" aka rev1, operational)
12:03 AM anonnumberanon: aluminum inodizing...
12:03 AM rue_mohr: that great but its steel
12:03 AM anonnumberanon: the pendant is?
12:03 AM rue_mohr: titanium
12:03 AM * rue_mohr successfully dodges
12:03 AM anonnumberanon: lol gtfo
12:05 AM anonnumberanon: titanium is cheap
12:25 AM rue_mohr: huh
12:26 AM rue_mohr: I got almost no get-up-and-go right now
12:27 AM Tom_L: pink
12:32 AM anonnumberanon: http://www.taigtools.com/cmill.html
12:34 AM rue_mohr: ah your going to just buy one then
12:35 AM rue_mohr: after 2 years of it sitting on a shelf doing nothing, will you send it to me?
12:35 AM rue_mohr: I was looking at that design for my next one
12:36 AM Tom_L: i may do my way covers like that
12:36 AM Tom_L: i can get neoprene
12:36 AM rue_mohr: I spent a whole night watching videos on how to fold accordians for cnc machines
12:43 AM Tom_L: using what material?
01:09 AM rue_bed: dont remmeber, cardboaard and treated cloth I think
01:10 AM rue_bed: more tired or more hungry, arg
01:11 AM Tom_L: time for bed almost
01:12 AM Tom_L: finishing paperwork now because i was playing earlier
01:15 AM rue_mohr: anonnumberanon, can you get that cylinder to 1mmx100 and export it as an stl?
01:39 AM rue_mohr: anonnumberanon, did you get a driver for your stepper?
01:39 AM rue_mohr: do you have a roll of electrical tape?
01:48 AM rue_mohr: #define tgl(port,bit) (port ^= (1<<bit)) // Toggle bit in port
01:48 AM rue_mohr: #define tst(port,bit) (((port)&(1<<(bit)))>>(bit)) // Test bit in port
01:48 AM rue_mohr: from atmel
09:17 AM emeraldgreen1: hi
05:34 PM rue_mohr: hi give me your christmas tree :)
05:34 PM rue_mohr: wait, getting a tree isnt' the only thing I'm supposed to do today
05:34 PM rue_mohr: ooooooh
05:35 PM rue_mohr: but I'm tired
05:43 PM rue_mohr: anonnumberanon, dude, any luck exporting to stl?
05:43 PM Tom_L: ok to the shop we go...
05:45 PM rue_mohr: oh right, cutting that channel
05:45 PM rue_mohr: ugh
05:45 PM rue_mohr: I just want to go to sleep
05:45 PM Tom_L: NO!
05:45 PM Tom_L: not sure what i'm gonna do tonight
05:45 PM rue_mohr: I'm mentally cooked, too much trying to ork out why people cant grasp a macro to set and clear bits
05:45 PM rue_mohr: drill the plate?
05:45 PM Tom_L: could cut 2 squares for the standoff and maybe mount the X axis screw to the aluminum plate
05:46 PM Tom_L: but i _was_ gonna have it squared up
05:46 PM rue_mohr: can you work on the buildout for the spindle?
05:46 PM Tom_L: no, i'm not gonna drill the plate until it's in place
05:46 PM Tom_L: that way it will be square to everthing that's not
05:46 PM Tom_L: rue_mohr, that is the buildout ^^
05:47 PM Tom_L: i can cut and weld that up i suppose
05:47 PM Tom_L: and cut the aluminum mounting plate that still needs cut
05:47 PM rue_mohr: the spindle if the motor isn't it? your direct drive ont his one?
05:47 PM Tom_L: huh?
05:48 PM rue_mohr: whats your spindle?
05:48 PM Tom_L: i'm gonna use the sherline spindle for now
05:48 PM Tom_L: until i can find one i like
05:48 PM rue_mohr: righ on
05:48 PM rue_mohr: right ok
05:48 PM Tom_L: i can drill lots of holes in that standoff easy or make a new one
05:49 PM rue_mohr: doyou have motor-ballscrew couplers?
05:49 PM Tom_L: it came with them but i need to ream one end out
05:49 PM Tom_L: nice ones
05:49 PM Tom_L: with the plastic absorber in them
05:49 PM Tom_L: i also got some screw type
05:49 PM Tom_L: don't know what you call em
05:50 PM Tom_L: so i've got 2 sets
05:50 PM Tom_L: https://www.ebay.com/itm/ER25-Spindle-Head-1-5KW-2HP-Power-Head-Unit-5Bearings-3000rpm-Drilling-Machine/201707809248?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D49451%26meid%3D2e178fceea374c15aca1033a691ecef3%26pid%3D100675%26rk%3D3%26rkt%3D15%26sd%3D162777934309&_trksid=p2481888.c100675.m4236&_trkparms=pageci%253Acdc1ef4d-e2bb-11e7-8b6e-74dbd18055bc%257Cparentrq%253A61bbdbce1600aa12f4931881ffeab0e7%257Ciid%253A1
05:50 PM Tom_L: is one candidate
05:50 PM Tom_L: but i prefer higher rpm rating
05:51 PM Tom_L: https://www.ebay.com/itm/Spindle-Unit-MT3-Power-Head-8000rpm-4Bearings-with-Drawbar-CNC-Router/192126115373?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D49451%26meid%3D2e178fceea374c15aca1033a691ecef3%26pid%3D100675%26rk%3D2%26rkt%3D15%26sd%3D162777934309&_trksid=p2481888.c100675.m4236&_trkparms=pageci%253Acdc1ef4d-e2bb-11e7-8b6e-74dbd18055bc%257Cparentrq%253A61bbdbce1600aa12f4931881ffeab0e7%257Ciid%253A1
05:51 PM Tom_L: is a bit pricey
05:52 PM Tom_L: https://www.ebay.com/itm/Spindle-with-synchronous-belt-for-CNC-milling-BT30-petal-clamp-disc-spring-drawb/322620546006?_trkparms=aid%3D777001%26algo%3DDISCO.FEED%26ao%3D1%26asc%3D49451%26meid%3D680b0b93461945bf8fac47eff3bff4db%26pid%3D100651%26rk%3D1%26rkt%3D1%26&_trksid=p2481888.c100651.m4497&_trkparms=pageci%253Acdc1ef4d-e2bb-11e7-8b6e-74dbd18055bc%257Cparentrq%253A61bbdbce1600aa12f4931881ffeab0e7%257Ciid%253A1
05:52 PM Tom_L: is another nice one but too high
05:53 PM Tom_L: i _don't_ want a router motor
06:01 PM Tom_L: https://www.ebay.com/itm/US-Stock-6-35-x-9-5mm-1-4-x-3-8-Flexible-Shaft-Coupling-Rigid-Coupler-D25-L30/371900433481?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
06:01 PM Tom_L: that's what the other couplers look like
06:08 PM robotustra: evening
06:11 PM robotustra: what's new?
07:03 PM ace4016: everything and nothing
07:04 PM emeraldgreen1: robotustra hi
07:04 PM emeraldgreen1: I'm waiting for anonnumberanon
07:05 PM emeraldgreen1: Also I'm building a sealed box for my 3d printer and I bought cheap filament
07:05 PM emeraldgreen1: I bought 1.2 kg of pink ABS for 7.31 USD and violet PLA for 11.73 USD
07:13 PM robotustra: I did a new cooling system for cnc mill, testing the temperature now
07:13 PM robotustra: https://imgur.com/DPEiaJY
07:48 PM Tom_shop: rue_mohr, it's time to wake up
07:49 PM Tom_shop: ok Z axis plate cut to size. not fun cutting 14" of 1/2" aluminum plate with hand tools
07:52 PM robotustra: only 1/2"? 14"? I was cutting 3/4" and much longer than 14"
07:52 PM robotustra: for cnc mill
07:52 PM robotustra: just take a break sometimes
07:52 PM robotustra: and don't press too much
07:53 PM Tom_shop: well that job is done anyway
07:53 PM Tom_shop: now to cut 2 plates for the Z hangover
07:54 PM Tom_shop: those shouldn't take quite as long
07:54 PM Tom_shop: 1/4" steel
08:32 PM robotustra: it's still easier than to scrape 4 plates 8x8" to flat
08:39 PM Tom_shop: that's just nuts
08:48 PM robotustra: uploading video to youtube
08:52 PM robotustra: done https://www.youtube.com/watch?v=eQI2dHTwZEA
08:56 PM Tom_shop: can't view it on this pc
08:58 PM robotustra: no problem
08:59 PM Tom_shop: i'll be inside in a bit though
08:59 PM Tom_shop: gotta clean up this mess first
09:16 PM Tom_L: robotustra, what water pump is that?
09:18 PM robotustra: it's kinda water pump for boats
09:18 PM robotustra: 13 V
09:18 PM rue_mohr: whats it cooking?
09:18 PM robotustra: but I use PWM to run it, I think I run it at 6-8 V only
09:18 PM rue_mohr: oh
09:19 PM rue_mohr: cant see sliders
09:19 PM rue_mohr: nice setup
09:19 PM Tom_L: pics to come
09:19 PM rue_mohr: pump isn't a bit big?
09:20 PM robotustra: no, it's not big
09:20 PM robotustra: actually the motor is about 4cm in diameter, all the rest is just plastic around
09:20 PM rue_mohr: thats the motor-screw ratio?
09:20 PM robotustra: external diameter is about 8 cm
09:21 PM rue_mohr: 2:1?
09:21 PM robotustra: 1:3
09:21 PM rue_mohr: :)
09:21 PM robotustra: 1/2-10
09:21 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Z_Column_Standoff1.jpg
09:21 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Z_Column_Standoff1.jpg
09:21 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Z_Column_Standoff2.jpg
09:21 PM rue_mohr: oh acme?
09:22 PM rue_mohr: are they all bar slides?
09:22 PM * Tom_L feels rue should have some show n tell pics
09:23 PM rue_mohr: oh bugger
09:23 PM rue_mohr: hmm
09:23 PM rue_mohr: its raining out now
09:23 PM kaokai: what foot you plan to crush with that ting lol
09:24 PM rue_mohr: anonnumberanon, did you see robotustras machine?
09:24 PM Tom_L: kaokai, that's the general plan: http://tom-itx.no-ip.biz:81/~webpage/cnc/Column_Mill_VMC.jpg
09:24 PM Tom_L: yeah robotustra btw where you been?
09:25 PM rue_mohr: Tom_L, looks good, lots of laborious cutting eh?
09:25 PM Tom_L: some
09:25 PM Tom_L: i was able to square the aluminum plate on the sherline though. it barely fit
09:25 PM Tom_L: one edge at a time
09:25 PM rue_mohr: heh
09:26 PM Tom_L: you do what you gotta do
09:26 PM rue_mohr: what pass/speed you use?
09:26 PM Tom_L: hand crank
09:26 PM rue_mohr: heh
09:26 PM rue_mohr: what pass/speed you use?
09:26 PM rue_mohr: :)
09:26 PM Tom_L: and my switch on the pendant is bonkers so it was on uber slow crank too
09:26 PM rue_mohr: :/
09:26 PM rue_mohr: full dep?
09:26 PM Tom_L: supposed to have 3 speeds and i've only got fast and snail slow
09:27 PM Tom_L: yes
09:27 PM rue_mohr: what ipm do ya think it was?
09:27 PM Tom_L: you mean iph?
09:27 PM rue_mohr: 1/2?
09:27 PM Tom_L: :)
09:27 PM Tom_L: i dunno, i was cranking as fast as i could
09:28 PM rue_mohr: well how long did the track take?
09:28 PM Tom_L: i wasn't keeping track. head down gettin stuff done
09:28 PM robotustra: oh you remade the mill
09:28 PM rue_mohr: appox?
09:28 PM Tom_L: maybe half hour each side
09:28 PM rue_mohr: and its 8"
09:28 PM Tom_L: maybe a little less
09:28 PM rue_mohr: ?
09:29 PM Tom_L: 6 x 7
09:29 PM Tom_L: on that one
09:29 PM rue_mohr: k, so pesimistically 6" in 30 mins
09:29 PM Tom_L: probably
09:29 PM rue_mohr: 0.2ipm
09:29 PM Tom_L: it seemed, maybe some less
09:29 PM rue_mohr: not bad for stuff that thick
09:30 PM Tom_L: it's square but not real smooth, lots of chatter
09:30 PM rue_mohr: continious or did you have to back up at all?
09:30 PM rue_mohr: finishing passes tom, finishing passes...
09:30 PM rue_mohr: 1/4" bit?
09:30 PM rue_mohr: 1/8"?
09:31 PM kaokai: looks like some sort of high precision drilling machine
09:31 PM Tom_L: 3/8"
09:31 PM Tom_L: one pass per side
09:31 PM rue_mohr: hey, I'm noy the only one to use cleaned worn-out socks for rags
09:32 PM Tom_L: cleaned!?!?!?
09:32 PM rue_mohr: ;)
09:32 PM rue_mohr: ok, I seem to have to get-up-and-go in me, better work out what to do with it before it burns out
09:32 PM Tom_L: i was gonna work on the big X plate but it's not quite square
09:33 PM rue_mohr: did I completely offend anonnumberanon ?
09:33 PM Tom_L: just a tiny bit off on the end i was gonna work on
09:33 PM Tom_L: so i'll go out and let him square it up
09:33 PM rue_mohr: dosn't the sherline spindle bolt in from the back?
09:33 PM Tom_L: no
09:34 PM rue_mohr: oh
09:34 PM Tom_L: one screw on the side iirc
09:34 PM rue_mohr: ONE!?
09:34 PM Tom_L: it clamps on that center post remember?
09:34 PM rue_mohr: why dosn't the sherline just flex all over the place and fall apart again?
09:34 PM Tom_L: it does
09:35 PM Tom_L: guess why i'm building a mill?
09:35 PM rue_mohr: I'm pondering sticking my Y motor under the pillar like you are
09:35 PM Tom_L: no reason not to
09:35 PM rue_mohr: but I'm uncomfortable with bridging
09:35 PM Tom_L: it's not like you need access to it that often
09:36 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Welding/Column_Supports1.jpg
09:36 PM Tom_L: that's what that's for
09:36 PM Tom_L: it's plenty rigid
09:36 PM rue_mohr: part of the design hangup for me is what to use for sliders
09:37 PM rue_mohr: I love the box slider thing
09:37 PM Tom_L: i know what i'd do
09:37 PM Tom_L: do it once and do it right
09:37 PM rue_mohr: you would spend money
09:37 PM Tom_L: on that i would
09:37 PM Tom_L: the rest has been very minimal
09:37 PM rue_mohr: those woogly curtin rods I got do a pretty good job
09:38 PM rue_mohr: if I was going to spend money on anything, it would be ball screws
09:38 PM Tom_L: you sell yourself short on things you shouldn't
09:38 PM rue_mohr: I think thats the most important bit to have good
09:38 PM Tom_L: that kit i got was the very cheapest thing i could find
09:38 PM rue_mohr: low friction screws with no backlash
09:38 PM Tom_L: and the slides
09:38 PM Tom_L: even cheaper than ali
09:39 PM rue_mohr: you machine is comming in $300-$500 tho, yes?
09:39 PM Tom_L: probably
09:39 PM Tom_L: the screws etc were the biggest part
09:39 PM Tom_L: and steppers but steppers are cheap now
09:39 PM rue_mohr: I have a large crate of them
09:39 PM Tom_L: big ones?
09:40 PM rue_mohr: lots of sizes, ya
09:40 PM rue_mohr: some bigger than the ones I used o that last machine
09:40 PM Tom_L: i'm tellin ya man, you need to bite the bullet and do this
09:40 PM Tom_L: it's almost christmas... :)
09:40 PM rue_mohr: I could bite a lot of bullets, its not worth the dental bill
09:41 PM Tom_L: but this is an important tool to make the other stuff you want easier
09:41 PM rue_mohr: I used to chew air-riffle pellets as a kid, dosn't that mean I'v bitten enough bullets??
09:41 PM rue_mohr: (I didn't swallow for what its worth)
09:41 PM rue_mohr: but I dont need it, yet
09:41 PM rue_mohr: there are 3 machines in my shop
09:41 PM Tom_L: but when you do you'll be rushed to get it done
09:42 PM rue_mohr: armyofevilrobots ' machine, and two I made
09:42 PM Tom_L: i know
09:42 PM rue_mohr: I'm a last minute kinda guy
09:42 PM rue_mohr: besides, I am seriously out of space
09:42 PM * Tom_L has a cure for that
09:42 PM robotustra: Tom_L, how are you going to make your mill square?
09:42 PM rue_mohr: sledgehammer
09:42 PM rue_mohr: and washers
09:42 PM Tom_L: last step i will tram it
09:43 PM Tom_L: and shim if needed
09:43 PM robotustra: rails?
09:43 PM Tom_L: i'm gonna check it on my bud's 6' surface plate
09:43 PM Tom_L: yes
09:43 PM robotustra: are you going to bolt rail on this raw tubes?
09:43 PM Tom_L: err precision granite slab
09:43 PM Tom_L: yes
09:43 PM rue_mohr: I was surprised how well within 0.25mm that machine I made is
09:44 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Z_Slide1.jpg
09:44 PM Tom_L: like that
09:44 PM rue_mohr: armyofevilrobots, hows your upgrade going anyhow?
09:44 PM robotustra: I will scrape mine pipes flat before screwing any rails to that
09:45 PM Tom_L: i'm gonna have my bud mill them
09:45 PM rue_mohr: hmm I should unburry the horizonal bandsaw I suppose
09:45 PM robotustra: ah ok
09:45 PM Tom_L: i hope
09:45 PM Tom_L: depends how busy he is
09:45 PM Tom_L: if not... plan B
09:45 PM rue_mohr: Tom_L, my machine is going to be smaller than the one your maiing
09:45 PM rue_mohr: making
09:46 PM robotustra: because the deviation from flatness was about 0.3 mm on my 8x8" plates
09:46 PM Tom_L: that's fine, but do that design and you'll get more Z area
09:46 PM robotustra: 0.3 mm
09:47 PM Tom_L: i'm not going for absolute perfect, just useable
09:47 PM robotustra: now it's flat within 0.01mm
09:47 PM robotustra: for me usable - means 0.001" precision
09:47 PM Tom_L: i won't be making space shuttle parts on it
09:47 PM robotustra: == 0.025 mm
09:47 PM robotustra: me either not, but 0.02 mm is reasonable
09:48 PM Tom_L: i'll see how it goes
09:48 PM robotustra: anyway, what I got - the scraping is a real power
09:48 PM Tom_L: i did run an indicator across the rails and they weren't that bad even like they are
09:48 PM rue_shop3: the upright beam I have is 4"x2-3/4"
09:48 PM robotustra: do you have granite plate?
09:49 PM Tom_L: no but my bud has a 4 x 6' one
09:49 PM Tom_L: 5" thick
09:49 PM Tom_L: approx
09:49 PM robotustra: did you test rail on that granite plate?
09:49 PM Tom_L: no i haven't been out there yet
09:50 PM robotustra: if the rail is not fitted to flat surface - it'll start to bend under the load
09:50 PM Tom_L: i'm aware
09:50 PM robotustra: it' will create a bunch of problems after
09:51 PM robotustra: that's why I'm doing this https://imgur.com/7fpYf6A
09:51 PM robotustra: and this https://imgur.com/klbZyVV
09:52 PM Tom_L: i know
09:52 PM robotustra: it was very uneven in the beginning https://imgur.com/Ps1kFN6
09:53 PM Tom_L: i'd think you would be scraping them after they are in place
09:54 PM rue_shop3: what are the plates for?
09:54 PM Tom_L: he's making a lathe i think
09:54 PM robotustra: I did an experiment - I tried to clamp them hard - and it didn't even bend
09:54 PM robotustra: yes, cnc lathe
09:54 PM Tom_L: just don't be surprised later
09:54 PM Tom_L: i've worked with metal quite a bit
09:55 PM robotustra: all adjesent surfaces will be scraped
09:55 PM Tom_L: what part is this plate?
09:55 PM rue_shop3: what are the plates for tho?
09:56 PM robotustra: I know what are you talking about, of cause I'll recheck them after putting on the place
09:56 PM robotustra: it' will be chuck hub mount
09:56 PM robotustra: I'll mount taper bearings on them
09:57 PM robotustra: in hubs I'm going to mill
09:57 PM robotustra: to mill them I have to install my new t-slotted table on cnc mill
09:58 PM robotustra: https://imgur.com/c8zW6YQ
09:58 PM robotustra: that's why I moved my cooling system outside the box
09:58 PM Tom_L: aluminum?
09:58 PM robotustra: yes, cast aluminum
10:00 PM robotustra: tomorrow will try to prepare mounting spots for this table
10:00 PM Tom_L: just don't let the T's pull the aluminum up
10:00 PM Tom_L: then it won't be flat
10:00 PM robotustra: I know, not going to abuse it
10:01 PM robotustra: anyway now I know how to make really flat surface
10:01 PM Tom_L: lots of work ehh?
10:01 PM robotustra: actually, I'm already got how to do it fast
10:02 PM rue_shop3: wtf, a few of my orders say "shipment canceled" WTF?
10:02 PM robotustra: new year?
10:02 PM robotustra: or you are too far?
10:02 PM Tom_L: that's not til february
10:02 PM Tom_L: for them
10:03 PM Tom_L: rue_mohr did you see those other couplers i got?
10:03 PM robotustra: I do raugh flatnes with grinder
10:03 PM Tom_L: yeah
10:03 PM Tom_L: be careful not to get it hot
10:03 PM rue_shop3: did n't see the couplers
10:04 PM rue_shop3: this is subtle, how many of my other orders are canceled?
10:04 PM Tom_L: https://www.ebay.com/itm/US-Stock-6-35-x-9-5mm-1-4-x-3-8-Flexible-Shaft-Coupling-Rigid-Coupler-D25-L30/371900433481?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
10:04 PM robotustra: I can't because I'm doing spots grinding
10:04 PM Tom_L: that's not the ones that came with the screws
10:04 PM robotustra: it's very light touches
10:05 PM rue_shop3: k, right
10:05 PM robotustra: you'll make direct drive?
10:05 PM robotustra: not timing belts?
10:05 PM rue_shop3: with direct drive the resolution is .01thou
10:05 PM rue_shop3: or was it .1 thou?
10:05 PM robotustra: what is the motor?
10:06 PM rue_shop3: 1.8*
10:06 PM rue_shop3: w/10 microstep driver
10:06 PM robotustra: number of steps?
10:06 PM rue_shop3: 1.8* is 200spr
10:06 PM robotustra: I don't beleive in mictostepping
10:06 PM rue_shop3: I can see that argument
10:06 PM robotustra: what is the screw step?
10:07 PM rue_shop3: 5mm pitch
10:07 PM rue_shop3: Tom_L, see how handy it is for me to have already worked this all out?
10:07 PM robotustra: ok, 5mm/200 = 0.025mm
10:07 PM rue_shop3: crap, I'd have to view detail on all 92 items
10:07 PM robotustra: == 0.001"
10:08 PM rue_shop3: then mcirstepping
10:08 PM rue_shop3: so "somewhere less than a thou"
10:08 PM robotustra: if Tom will not flaten the plates - he don't need microstepping :)
10:09 PM rue_shop3: I love the "1 angstrom is not enough resolution for me" argument
10:09 PM rue_shop3: it seems that if it can be measured, people aren't happy with it
10:11 PM robotustra: that's what I have for microstepping on my motor https://imgur.com/QbcBKu2
10:11 PM robotustra: but I didn't try it yet
10:11 PM rue_shop3: robotustra, the argument against ya I have, is that sofar I'v only seen your machine doing wood, and the wood will change by more than 2 thou just due to ambient moisture changes
10:12 PM Tom_L: i'm gonna try direct drive on X and Y, Z is 3:1
10:12 PM Tom_L: if i need to change that i'll figure it out later
10:12 PM robotustra: rue_shop3, I did aluminum parts and they were within 0.02mm
10:13 PM rue_shop3: k
10:13 PM rue_shop3: you seen my machine?
10:13 PM rue_shop3: with the 3d printed sliders?
10:13 PM robotustra: https://ic.pics.livejournal.com/maholet/24765393/17146/17146_600.jpg
10:13 PM rue_shop3: would you cr** yourself if I did a hole and it came out to within 1 thou?
10:13 PM rue_shop3: :)
10:14 PM robotustra: may be, I saw a lot of you machines
10:14 PM rue_shop3: cause if the results made you and anonnumberanon have a bird, I'd do it
10:14 PM robotustra: I can do more precise, but I don't need to
10:15 PM Tom_L: rue builds things. they may not be so refined but he builds things
10:15 PM rue_shop3: robotustra, has done an awesome job on that one,
10:15 PM robotustra: I saw hes things, no problem with them
10:15 PM Tom_L: some feel they need to be exacting and some don't
10:15 PM rue_shop3: Tom_L, yours is good too, dont get me wrong
10:15 PM Tom_L: i fall somewhere in the middle
10:15 PM robotustra: I'm not competing with anybody
10:15 PM rue_shop3: http://ruemohr.org/~ircjunk/projects/cnc4/p1080739.jpg
10:16 PM rue_shop3: 3d printer sliders
10:16 PM Tom_L: i'm not either, in fact i'm encouraged someone is building something else i can watch
10:16 PM rue_shop3: completely untrammed
10:16 PM rue_shop3: cmon
10:16 PM rue_shop3: what do you think I can get?
10:16 PM robotustra: oh, this mill looks solid
10:16 PM Tom_L: but see that inspired me to make one
10:16 PM rue_shop3: _3d printed sliders_
10:16 PM robotustra: didn't see it before
10:17 PM robotustra: they are short
10:17 PM Tom_L: i need more practice welding though
10:17 PM robotustra: ganrty looks strong
10:17 PM rue_shop3: http://ruemohr.org/~ircjunk/projects/cnc4/p1080693.jpg
10:17 PM Tom_L: some weren't that stellar looking
10:18 PM Tom_L: those tubes flex alot though don't they?
10:18 PM rue_shop3: so far its not much of a problem
10:18 PM rue_shop3: 1mm bits and all
10:18 PM Tom_L: yeah
10:19 PM robotustra: as soon as I know how strong can be PLA - I'm not sirprized about 3d printed slides
10:19 PM rue_shop3: actually, we been putting a LOT of hours on that machine (hundreds now) and I think its picked up about 0.1mm backlash
10:19 PM rue_shop3: I'm using a split HDPE nut
10:20 PM rue_shop3: http://ruemohr.org/~ircjunk/projects/cnc4/p1080719.jpg
10:20 PM rue_shop3: they initially took a lot of wear
10:21 PM rue_shop3: http://ruemohr.org/~ircjunk/projects/cnc4/p1080720.jpg
10:21 PM rue_shop3: seem to be normalizing
10:21 PM robotustra: I have these nuts https://www.ebay.com/itm/Delrin-AB-nut-1-2-10-acme-2-start-2-rev-CNC-router-leadscrew-anti-backlash-RH/131889585122?hash=item1eb53b5be2:m:mWiMA1znWdvKKn0xXkcTamA
10:21 PM rue_shop3: but their high friction
10:21 PM rue_shop3: ! thats what yours usses?
10:22 PM robotustra: yes
10:22 PM robotustra: delring
10:22 PM rue_shop3: hmmmm
10:22 PM robotustra: works already since 2011
10:23 PM robotustra: may be will replace it with brass ones
10:23 PM rue_shop3: we have a 16.5 hr part we been making on mine, we've made about 30 of them
10:23 PM rue_shop3: and about 30 of the part that takes 1.5 hrs
10:23 PM rue_shop3: so thats like 5xx hrs
10:23 PM rue_shop3: 2 breakdowns in ~550 hrs, not bad!
10:24 PM rue_shop3: with the other stuff its prolly about 600hrs
10:25 PM robotustra: after I finish my cnc lathe I'll probably remake my mill to be able to mill steel
10:26 PM robotustra: now I can mill it with very light feed and have to stand an pour coolant byb hands
10:26 PM rue_shop3: I have air puffers, for the aluminum
10:28 PM robotustra: I have a fish tank compressor too, but didn't made a blower yet
10:29 PM robotustra: anyway, I'm not going to mill steel with delring nuts :)
10:29 PM robotustra: it's too much for them
10:30 PM robotustra: you was asking about plates - they will be mounted like this https://imgur.com/e9M8PyS and I'll make a holes in it and put spindle through them
10:33 PM rue_shop3: then why are you making them so flat?
10:33 PM robotustra: because they were like 0.3 mm off
10:34 PM robotustra: bent
10:36 PM rue_shop3: how do the bearings mount to it?
10:37 PM rue_shop3: arg, I should freaking run the web browser in a bash loop so it automatically restarts after it crashes
10:38 PM robotustra: I'll make hubs from aluminum
10:38 PM robotustra: on cnc mill
10:38 PM robotustra: bearings are 110mm OD
10:39 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Couplers.jpg
10:39 PM Tom_L: there's the 2 different couplers i've got
10:39 PM Tom_L: the plastic center came with the screws
10:40 PM robotustra: I got my couplers with screw also, but I'll not use them
10:43 PM Tom_L: rue_mohr, is that the sprayer handle you're making?
10:43 PM rue_shop3: yea
10:43 PM Tom_L: so how long _should_ they take to make?
10:44 PM rue_shop3: its going like a gocart with nailed on wheels down a steep hill
10:44 PM rue_shop3: its a 1mm bit, I cant push it harder
10:44 PM Tom_L: if it gets you there...
10:44 PM Tom_L: i get this done maybe you can offload some
10:45 PM rue_shop3: we dont know, if the wheel comes off anymore our options are to bail or try to lean it all over to the wheels on the other side
10:45 PM rue_shop3: not for the price of them
10:45 PM Tom_L: i'd lean
10:45 PM Tom_L: how thick is the aluminum?
10:45 PM rue_shop3: 1/8"
10:45 PM rue_shop3: but max bit size is 1.5mm cause of a slot
10:46 PM Tom_L: well on that slot anyway
10:46 PM rue_shop3: they are having issues with them tho
10:46 PM rue_shop3: the design is horrily sensitive
10:46 PM Tom_L: what issues?
10:46 PM Tom_L: maybe we should redesign it
10:47 PM rue_shop3: breaking banding bad fitting
10:47 PM rue_shop3: its not really made up the initial design time
10:47 PM rue_shop3: and it was just copied from the ones they used to have
10:47 PM Tom_L: what's it drawn in?
10:48 PM rue_shop3: a mess of things
10:48 PM rue_shop3: sorry
10:48 PM Tom_L: stl?
10:48 PM Tom_L: solidworks will import just about anything
10:48 PM rue_shop3: I'm TRYING to check all my aliexpress orders, and I'm clicking too fast and the browser keeps crashing
10:48 PM rue_shop3: I'm on page 8 of 10
10:48 PM Tom_L: heh
10:49 PM rue_shop3: this isREALKLY a pissoff, siome of the orders have been canceled by shipping
10:49 PM rue_shop3: like WTF this is new
10:49 PM Tom_L: why due to shipping?
10:50 PM rue_shop3: I have no idea
10:50 PM Tom_L: did their ship sink?
10:50 PM rue_shop3: and the ONLY way to see this problem is to "view detail " on EVERY listing I'v puchased
10:51 PM rue_shop3: and FFFFFFFFFFFFF javascript and leaky broswer and ARG
10:51 PM Tom_L: well i think i've got most things cut out now at least
10:52 PM Tom_L: still need to do or redo the stepper mounts and verify them
10:52 PM rue_shop3: 2017.11.30 09:39 (GMT-7): Shipment cancelled
10:52 PM rue_shop3: 2017.11.17 08:39 (GMT-7): Waiting for pick up
10:53 PM rue_shop3: I have 91 orders, this isn't fun
10:53 PM Tom_L: maybe you ordered too much stuff
10:53 PM Tom_L: at once
10:55 PM rue_shop3: ok, out of 91 orders, it happened to 3 things
10:55 PM rue_shop3: I'v written the sellers, see what they say
10:55 PM Tom_L: just 3? that's not too bad
10:56 PM rue_shop3: it was a fluke I caught it tho
10:56 PM rue_shop3: I need a good idea for ball joints for a helping hands I'm making for ma
10:57 PM Tom_L: didn't i make one for you once?
10:57 PM Tom_L: snap fitting?
11:01 PM rue_mohr: I put some holes in two plates and sandwhiched it
11:01 PM rue_mohr: but the plates bent
11:02 PM rue_mohr: so far all my ideas are insanely complex
11:02 PM Tom_L: look on grabcad for ideas
11:15 PM rue_mohr: 3 images comming up
11:16 PM rue_mohr: http://ruemohr.org/~ircjunk/images/p1090549.jpg
11:16 PM rue_mohr: this is the horizontal bandsaw
11:16 PM rue_mohr: as you can see, there is some stuff stored in the frame of it
11:17 PM Tom_L: keeps it from moving around
11:17 PM rue_mohr: http://ruemohr.org/~ircjunk/images/p1090547.jpg this is from the other side, as you can see, not gonna be easy to get it out
11:17 PM rue_mohr: http://ruemohr.org/~ircjunk/images/p1090551.jpg
11:17 PM rue_mohr: that (sorry, just cant find better image) is the channel
11:18 PM rue_mohr: I need to take the saw to the channel
11:18 PM Tom_L: how'd you get that in there?
11:18 PM rue_mohr: OR load it back on the truck and see if I can trade the welder for a non-galvanized peice
11:18 PM rue_mohr: on the truck rack
11:18 PM rue_mohr: w/help
11:19 PM rue_mohr: :|
11:19 PM rue_mohr: http://ruemohr.org/~ircjunk/images/p1090547.jpg
11:19 PM rue_mohr: if you squint
11:19 PM rue_mohr: under that bicycle wheel is a "garbage can robot"
11:20 PM rue_mohr: which MIGHT provide a path out
11:20 PM rue_mohr: the large grey box is a 200A single phase transfer switch (generator)
11:21 PM rue_mohr: on the empty spool is a transmission for an ~97 S10 ;)
11:21 PM rue_mohr: the vert bandsaw is still under repair
11:21 PM rue_mohr: under the hanger (not in it) is all my long steel stock
11:22 PM rue_mohr: I MUST remember this year to sell the snow shovels I got if the weather goes bad again
11:23 PM Tom_L: falling asleep in the chair... gnite
11:24 PM rue_mohr: :D
11:24 PM rue_mohr: good way to and up numb
11:25 PM rue_mohr: you know
11:25 PM rue_mohr: I suppose it would be an awesome time of year to have a table of cnc'd boxes and junk at a craft sale
11:26 PM rue_mohr: if only I weren't hopeless at selling things
11:27 PM rue_mohr: ok I thinkI have an idea
11:27 PM rue_mohr: ohbut I dont like it