#linuxcnc Logs

Oct 08 2020

#linuxcnc Calendar

12:15 AM mrec: Hi, I'm new to linuxcnc in the manual I saw that a raspberry PI 4 would be suitable; did anyone test that?
12:21 AM mrec: I'd like to convert a manual mill to CNC
12:21 AM mrec: on the other hand I still have a 2ghz PC with parport here (I plan to use that one actually)
01:44 AM Deejay: moin
02:43 AM -!- #linuxcnc mode set to +v by cherryh.freenode.net
04:43 AM Tom_L: morning
04:44 AM XXCoder: yo
04:56 AM JT-Cave: morning
04:58 AM XXCoder: yo
06:11 AM JT-Cave: just about finished the spoke lathe conversion, going to test the magazine this morning
06:12 AM XXCoder: ohh nice
06:13 AM JT-Cave: http://www.vintagemachinery.org/mfgindex/images/3838-A.jpg
06:15 AM JT-Cave: http://vintagemachinery.org/mfgindex/imagedetail.aspx?id=3838
06:15 AM JT-Cave: now I understand more what it originally looked like
07:23 AM jymmmm: morning
07:26 AM jymmmm: JT I can only imagine the cost of that way back when
01:06 PM skunkworks: wow - have not been on the mach support forum in ages.. still looks like a dumpster fire..
01:06 PM skunkworks: (that might be a little harsh)
01:20 PM FinboySlick: skunkworks: I think the new expression would be "still looks like a presidential debate"
01:29 PM skunkworks: yikes
01:44 PM FinboySlick: skunkworks: Did you progress some more on the polygonal milling/turning?
01:47 PM skunkworks: Umm what did you see last?
01:47 PM skunkworks: I added a way to add radiuses to the corner to help with the abrupt change in direction...
01:47 PM FinboySlick: Was that about a month ago?
01:48 PM skunkworks: https://www.youtube.com/watch?v=Q9zhi8Mc1fE
01:48 PM skunkworks: probably? Time is an illusion - lunch doubly so...
01:52 PM FinboySlick: Yes, seen that one. That sliced thread on the end of the piece is very familiar. We need more though.
01:52 PM FinboySlick: Your hordes of raving fans have insatiable demands for content.
01:52 PM FinboySlick: (something like that anyway)
01:57 PM skunkworks: Well - my next thought is somehow loading a shape into the componant.. (like a cam shape or such)
01:58 PM FinboySlick: It's a cute little lathe, btw. You said it was an emco, right?
01:58 PM skunkworks: yes - it was a compact 5 cnc
02:04 PM roycroft: speaking of cute little lathes
02:04 PM roycroft: i finally put my little 7x14 c2 lathe on craigslist
02:04 PM roycroft: and i've had four responses today so far
02:04 PM roycroft: one is actually driving down 3 hours to look at it
02:04 PM skunkworks: NOOOoooooooooo!
02:04 PM * roycroft will be so glad for that thing to go away
02:09 PM roycroft: i'm focusing on getting rid of the stuff that i trip over when trying to get work done
02:09 PM roycroft: and that mini-lathe is definitely a tripping thing
02:09 PM roycroft: it's on a roll-around cart that i built for ti
02:32 PM JT-Shop: roycroft, any photos of the completed bench?
02:59 PM veegee: I'm really pushing my luck
02:59 PM veegee: OTHER end of the hydraulic hose I just fixed burst
02:59 PM veegee: I'm just going to replace every single damn hydraulic hose on the forklift
03:00 PM veegee: I'm wasting more oil from the hose bursting than the cost of the hose
03:18 PM Deejay: gn8
03:28 PM skunkworks: we have a kubota that had to have all of the hoses replaced. Seemed after each one was replaced - the next one burst.
03:40 PM JT-Shop: yea my kubota bucket I just replaced all 8 hoses when one started leaking
03:40 PM JT-Shop: they are cheap anywan
03:41 PM skunkworks: right
03:41 PM skunkworks: what model?
03:42 PM FinboySlick: Think they got the planned obsolescence on hoses down to within a week? ;)
03:44 PM JT-Shop: LA-302 loader tractor is a B7500
03:44 PM JT-Shop: you get your parts from Messick?
03:45 PM JT-Shop: same thing on my antique backhoe I just replaced all the hoses on the digger when they started to leak
03:49 PM * JT-Shop has one more part to blast the mill scale off of then it's time to quit early and start celebrating
03:55 PM skunkworks: I don't know what dad has
03:55 PM skunkworks: he got a 3 point backhoe that fits it perfect
03:58 PM JT-Shop: prob a larger one than mine, dunno if they have a backhoe attachment for the B7500 or not
04:01 PM JT-Shop: https://www.usadscenter.com/fotos/jennson30_1_1383671338.jpg
04:01 PM JT-Shop: well it looks like they have a backhoe attachment for the B7500
04:01 PM JT-Shop: I have the bucket and a roof
04:02 PM skunkworks: JT-Shop: http://electronicsam.com/images/greenmachine/IMG_20200407_133027.jpg
04:02 PM skunkworks: cool!
04:02 PM JT-Shop: that looks smaller than the B7500
04:03 PM skunkworks: it is a smallish tractor. (compared to the ford 4000 he has :) )
04:03 PM JT-Shop: that comes in handy when you need to get into tight places
04:03 PM JT-Shop: I rebuilt one of the cylinders on the bucket, 3 more kits on the way...
04:04 PM * JT-Shop is knocking off 1/2 hour early and celebrating
04:06 PM roycroft: how's your workbench design going, jt-shop?
04:06 PM JT-Shop: still reading and pondering
04:06 PM JT-Shop: got any photos of your completed bench?
04:08 PM roycroft: no, i should snap a pic or two
04:08 PM roycroft: i still haven't finshed the deadman
04:08 PM roycroft: and i haven't drilled any holes for my holdfasts yet
04:08 PM roycroft: i'm still deciding where to put them
04:08 PM roycroft: and i still have to flatten the bench top a bit more
04:08 PM roycroft: but none of those things stops me from using it
04:09 PM roycroft: if i'm honest, i was so focused on building it for 2-1/2 months that i didn't get much else done
04:09 PM JT-Shop: nice, I'm enjoying reading chris's book
04:09 PM JT-Shop: I know how that goes for sure
04:09 PM roycroft: and since i mostly completed it and put it in place, i've been scrambling to catch up on the things i ignored
04:10 PM roycroft: i'm going to go pick up some walnut after work today to maek the planing stop/tool holder strip that goes in the middle of the bench top
04:10 PM roycroft: i'm still a bit unsure about that
04:10 PM roycroft: whether i'll use it much or not
04:10 PM roycroft: i think i'll use it
04:11 PM roycroft: the thought occured to me that instead of buying $100 worth of walnut to make it i might just make it out of pine for now, to see if i end up using it much or not
04:11 PM roycroft: but if i make it out of walnut and end up not using it, i can repurpose most of the walnut
04:11 PM roycroft: so it won't be a big loss
04:12 PM roycroft: chris schwarz knows a lot about workbenches, and has a really great historical perspective on them
04:12 PM roycroft: he's pretty opinionated about them though
04:13 PM JT-Shop: yea, I can hear his voice when he speaks lol
04:14 PM roycroft: although he's of the mind that people need to figure out what works best for them
04:14 PM roycroft: he just thinks that most people will come around to his way of thinking, given enough time and information :)
04:15 PM roycroft: but it's really all about what you're doing with it that matters
04:15 PM roycroft: if i were running a custom cabinet shop like i did 30 years ago, i'd have absolutely no use for a roubo bench
04:15 PM roycroft: i'd have a bunch of big assembly tables
04:15 PM roycroft: with festool mft type grids of holes
04:16 PM roycroft: that's why when people ask me to recommend a workbench i ask them 'what are you doing to do with it?'
04:16 PM JT-Shop: the main thing I need right now is exposure to all the variations so I can pick the features I "think" I need/want
04:16 PM roycroft: yup
04:17 PM roycroft: i saw a video recently about a guy who claimed to have made a 'hybrid scandanavian-roubo' workbench
04:17 PM roycroft: i did not believe the description
04:17 PM roycroft: but then i saw what he built
04:17 PM roycroft: he built a fairly wide bench
04:17 PM roycroft: on one side he had a leg vise on the left and a wagon vise on the right
04:18 PM roycroft: on the back side of the bench he had a shoulder vise on the left and a european-stype tail vise on the right
04:18 PM roycroft: i would still not call it a 'hybrid' bench
04:18 PM roycroft: i'd call it two different styles joined together at their back sides
04:18 PM roycroft: but it was kind of an interesting idea
04:18 PM roycroft: and if you can't make up your mind what you want, that's one way of dealing with it
04:19 PM roycroft: i just love how massive mine is
04:20 PM roycroft: it's just rock solid
04:20 PM roycroft: and i absolutely love the benchcrafted vise hardware
04:20 PM roycroft: it took me a really long time to convince myself to spend the money on it
04:20 PM roycroft: but now that i have it i don't regret it for an instant
04:21 PM JT-Shop: good quality hardware is usually worth the price
04:21 PM roycroft: yeah
04:21 PM roycroft: i had a guy over the other day - he was buying some stuff i had listed on cl
04:21 PM roycroft: he was looking at the bench, and freaked out when i told him how much the vise hardware cost
04:22 PM roycroft: and was telling me that it was way overprice
04:22 PM roycroft: i opened the leg vise about 6"
04:22 PM roycroft: held a board in the jaw opening
04:22 PM roycroft: spun the handle with one finger
04:22 PM roycroft: let it spin shut on its own
04:23 PM roycroft: i did not touch the handle after that
04:23 PM roycroft: then i put my entire body weight on the board and it did not move at all
04:23 PM JT-Shop: that's pretty sweet
04:23 PM roycroft: the guy shut up after that
04:23 PM roycroft: he did like the wagon vise a lot, even before my leg vise demo
04:24 PM roycroft: for me, if i really liked the scandanavian style bench, i'd do a real "hybrid"
04:24 PM roycroft: with a shoulder vise on the left and a wagon vise on the right
04:24 PM roycroft: those european tail vises are just stupid
04:24 PM roycroft: when they're brand new they're nice
04:24 PM roycroft: but the sag over time
04:25 PM roycroft: and you can't fix them
04:32 PM JT-Shop: what does an European tail vise look like?
04:36 PM roycroft: https://blog.lostartpress.com/2018/02/22/james-krenovs-workbench/https://blog.lostartpress.com/2018/02/22/james-krenovs-workbench/
04:36 PM roycroft: ack
04:36 PM roycroft: https://blog.lostartpress.com/2018/02/22/james-krenovs-workbench/
04:36 PM roycroft: let's just do it once :)
04:37 PM roycroft: but basically they have a long, giant moving jaw
04:40 PM JT-Shop: yea that face vise looks like it just gets in the way and the long overhang well doesn't look supported well
04:41 PM JT-Shop: I have a bunch of very heavy duty linear rails...
04:41 PM roycroft: the shoulder vise is nice in some respects
04:41 PM roycroft: the chop can swivel to hold angled pieces
04:41 PM roycroft: and there's no screw in between the chop and the bench, so it can hold long pieces upright
04:42 PM roycroft: but it sticks out too far for me
04:42 PM roycroft: i'd be bumping into it all the time
04:42 PM roycroft: i have a moxon vise, and if i need to hold long pieces upgright i can use that
04:42 PM JT-Shop: the twin screw vise that goes on top of the table seems to work for holding long vertical parts
04:43 PM JT-Shop: yea a moxon vise
04:43 PM JT-Shop: I forgot the name
04:44 PM roycroft: i made mine a couple years ago
04:44 PM roycroft: i go the benchcrafted hardware for it
04:44 PM roycroft: i wanted to see if benchrafted stuff was as good as folks say it is without investing the big bucks for the leg and wagon vise hardware
04:44 PM roycroft: and it is :)
04:45 PM roycroft: https://www.routerforums.com/tools-woodworking/113754-scandinavian-workbench-restoration-2.html
04:46 PM roycroft: if you're still thinking about making a moravian bench, that's a pretty nice one, and you can download pdf plans for it
04:48 PM JT-Shop: interesting they did't angle the face vise
04:49 PM roycroft: i've seen them done both ways
04:49 PM roycroft: benchcrafted say their hardware works at up to a 15 degree angle
04:50 PM roycroft: on my bench i figure that between the moxon vise and the deadman (whenver i finish it) the vise screw won't be a problem for me
04:52 PM Tom_L: JT-Shop, what are you celebrating?
04:53 PM JT-Shop: well 67 years ago...
04:54 PM JT-Shop: on this very day...
04:54 PM JT-Shop: in a quanset hut...
04:54 PM JT-Shop: on the island of Kodiak
04:54 PM JT-Shop: in the territory of Alaska...
04:54 PM JT-Shop: a baby boy was born
04:57 PM JT-Shop: the most amazing thing is I'm still breathing
04:57 PM JT-Shop: after all the crap I did as a ute
04:59 PM roycroft: congratuations
04:59 PM roycroft: with an l
05:00 PM JT-Shop: thanks
05:00 PM Tom_L: yeah happy birthday
05:01 PM Tom_L: who knows if they're better celebrated early on or now :)
05:08 PM JT-Shop: had a good fit up test on the spoke machine this afternoon, came back and welded it all up and powder coating the parts
05:08 PM JT-Shop: going to do a function test tomorrow afternoon
05:08 PM Tom_L: cool
05:08 PM Tom_L: you should shoot some video
05:09 PM JT-Shop: I will when it's running in automatic
05:09 PM JT-Shop: LOL my sister and her math class sang me happy birthday this morning on the phone
05:09 PM Tom_L: heh
05:10 PM Tom_L: she a teacher?
05:10 PM JT-Shop: yea
05:11 PM JT-Shop: my older sister worked her way up to superintendent of her school district then she retired
05:26 PM * JT-Shop just got a package from Lignomat
05:50 PM roycroft: nice birthday present to yourself, jt-shop :)
05:51 PM * roycroft just spent $103 on walnut
05:51 PM roycroft: i'll have a lot of cutoffs though, so probably only $60 worth of it will go into the plane stop/tool holder
05:52 PM roycroft: i'm trying to decide how thick to make it
05:52 PM roycroft: the rainy season is just beginning, so i expect my bench to swell up a bit over the next few months
05:52 PM roycroft: a slightly loose fit would probably be ok
05:53 PM roycroft: certainly i don't want a snug fit
06:01 PM JT-Cave: take some photos! LOL
06:07 PM roycroft: yeah, after i make it
06:08 PM JT-Cave: of the bench too
06:08 PM roycroft: unfortunately, where my bench lives it's hard to get good pictures
06:08 PM JT-Cave: you mean it's not well lit by a southerly window?
06:08 PM roycroft: i suppose i could get a gopro with that ridiculous ultra-wie angle lens
06:08 PM roycroft: it's too near a wall
06:08 PM roycroft: lighting is not a problem
06:09 PM roycroft: i'll figure something out
06:09 PM JT-Cave: my phone does panoramic photos but they look distorted
06:09 PM roycroft: i should have taken some more pictures before i installed it
06:09 PM roycroft: but when it was ready to install so was i
06:09 PM roycroft: and i did not hesitate to move the old one out of the way
08:15 PM Rab: JT-Cave, happy birthday!
08:22 PM _unreal_: There finished getting the wires fingered out
10:01 PM snakedGT is now known as snakd
10:01 PM snakd is now known as snaked