#linuxcnc Logs

Jan 15 2020

#linuxcnc Calendar

12:04 AM CaptHindsight: https://drive.google.com/file/d/19Icwb-fOron31ADhwb3RkyYShtNXt1Py/preview robot meets and waves to an Ameoba
12:09 AM CaptHindsight: https://drive.google.com/file/d/128jqB0j6fK1y7vNutDinaBVblGAyD-lZ/preview
12:09 AM CaptHindsight: cellular sized bots
12:23 AM veegee: The bridgeport/clone mills state that the one shot oiler oils all the ways AND leadscrews
12:23 AM veegee: I don't see any oil lines going to the nuts or screws (I don't think so anyway)
12:23 AM veegee: How are those getting oiled?
12:25 AM CaptHindsight: by lines not visible or they aren't
12:27 AM veegee: It's a First LC-1 1/2 VS, I highly doubt they'd lie about that
12:27 AM veegee: but I'll check the parts manual
12:28 AM veegee: I sprayed a lot of kerosene when cleaning it and after many pumps of the oiler, the screw does indeed seem to be oiled again
12:29 AM veegee: Also the quill power feed on it isn't working. Need to figure out what's broken and fix it :(
12:29 AM veegee: The head is going to be painful to disassemble
12:35 AM Elmo40: _unreal_, those threaded rods get cut yet?
04:52 AM jthornton: morning
04:53 AM XXCoder: hey
04:53 AM XXCoder: my board is nearby now yay
04:53 AM XXCoder: around a hour or so away lol
04:53 AM jthornton: you got the cable?
04:53 AM XXCoder: supposing i drove there
04:53 AM XXCoder: yeah got it few days on day board was supposed to arrive
04:53 AM XXCoder: %ago
04:59 AM Tom_L: morning
05:00 AM XXCoder: hey
05:00 AM XXCoder: anyway I hope board have had a nice vacation at ohio lol
05:20 AM jthornton: they finally got my van fixed, had to put an OEM intermediate shaft in
05:51 AM Deejay: hi
07:53 AM beachbumpete1: Mornin'
03:56 PM Deejay: gn8
05:35 PM jthornton: the mechanic that works on my old vehicles was telling me about car-part.com that's a good place to get used parts
06:22 PM CaptHindsight: jthornton: I've been using that site since they started it car-part.com
06:24 PM CaptHindsight: jthornton: for older body parts I call around the bone yards in the dry desert areas of the US
06:24 PM jthornton: that makes sense
06:25 PM jthornton: damn sure you don't want sheet metal from the salt road areas
06:26 PM CaptHindsight: some yards don't ship so i have them cut off whatever I need and then have a local messenger service pick it up....
06:26 PM CaptHindsight: and take it to a Fedex-kinkos for boxing and shipping
06:27 PM jthornton: you do a lot of restoring?
06:27 PM CaptHindsight: if the bone yard doesn't ship they will usually wrap the sharp edges
06:27 PM CaptHindsight: i try not to anymore
06:27 PM jthornton: lol
06:28 PM jthornton: chow time here
06:28 PM CaptHindsight: my last 2 week strip and paint project turned into 3 years
06:30 PM CaptHindsight: new bumpers, fenders, wheel arches, suspension, wheel bearings, seats, interior misc and carpet etc etc
06:44 PM _unreal_: Jymmm, hi
06:44 PM _unreal_: Elmo40, yes rods are cut well all but Z but I cant do Z till I get Z carriage built
06:45 PM _unreal_: Rab, I got a FAKE cartier ring in the mail
06:45 PM _unreal_: I'm 90% sure that, that is the "welder"
06:46 PM _unreal_: again I only made the purchase because I was interested in finding out what I was going to get
06:46 PM _unreal_: IF anything
06:46 PM _unreal_: sorry for being distant yall. but I have this STUPID
06:47 PM _unreal_: project of my daughters do in a few days and her mother never took her over the christmass beak so I wasnt able to work on her machine relaly. you know. endless single parent problem
06:50 PM andypugh: Some lovely chap on Practicalmachinst has a picture of the Kearns boring head.
06:50 PM andypugh: https://www.practicalmachinist.com/vb/general/hbm-facing-chuck-how-does-work-372442-post3472260/#post3472260
06:51 PM andypugh: It has a handle on the back that doesn’t rotate when the spindle is going round, but which controls a radial feed in the facing chuck.
06:51 PM andypugh: And it has taken me quite a whole to figure out how it works.
06:52 PM andypugh: (Like 40 years plus the 20 minutes looking at the picture)
06:54 PM Tom_L: and have you finally figured it out?
06:55 PM andypugh: Just about, I think
06:56 PM _unreal_: I call bull shit
06:57 PM andypugh: The carrier of the differential is driven 1:1 with the spindle. The bevel nearest the chuck is stationary and keyed to the control shaft. This means that the other bevel spins at twice the spindle speed and is then geared down 2:1 to the feed shaft that turns the feed screw,
06:57 PM andypugh: So the net effect is that the feed shaft spins at exactly the spindle speed
06:58 PM andypugh: But, if you now rotate the control shaft the feed shaft will lead or lag the spindle by as nush as you turn the control shaft.
06:58 PM andypugh: (by as much)
06:58 PM Tom_L: yeah
06:59 PM andypugh: The top shaft is power feed. Also using bevels, in a way that is actually pretty common on lathes.
06:59 PM andypugh: (and on old planers)
07:00 PM Tom_L: yeah i see what you're talking about
07:00 PM Tom_L: had to zoom in
07:02 PM andypugh: (The reversible feed is not shown that clearly. There is a bevel fixed the machine case hidden behind the dog clutch. The input gear and bevel spin one way, then the output bevel spins the opposite way because of the hidden bevel. Then the dog clutch engages the inner shaft with one or the other or neither for two directions and neutral.
07:04 PM andypugh: But it was the radial feed that I was puzzled by.
07:10 PM Tom_L: you should model that in fusion and simulate it :)
07:21 PM andypugh: Hmmm…
09:52 PM infornography: <3