#linuxcnc Logs
Oct 11 2018
#linuxcnc Calendar
02:12 AM Deejay: moin
02:54 AM gloops: 10ft half inch bandsaw blade - £11
02:55 AM gloops: one of the cheaper carbon steel sundries
05:02 AM jthornton: morning
05:02 AM XXCoder: yo
05:09 AM jthornton: yea my code finally updated at midnight... the heck with schedule
05:10 AM XXCoder: yay lol
05:11 AM jthornton: today = datetime.date(datetime.now(pytz.timezone('US/Central')))
05:11 AM jthornton: if lastDate != today:
05:11 AM jthornton: lastDate = today
05:11 AM jthornton: update()
05:11 AM jthornton: yea 4 lines of code lol
05:11 AM XXCoder: not very complex
05:36 AM Tom_L: what was the issue?
05:38 AM jthornton: schedule would not work as claimed it seemed to be stuck in UTC time
05:39 AM jthornton: https://github.com/dbader/schedule/issues/250
05:39 AM Tom_L: 42°F Hi 55
05:40 AM jthornton: 49°F high 64°F
05:40 AM XXCoder: oh firefox updates better now
05:40 AM XXCoder: no more tab crashing
05:46 AM gloops: cant give them away https://www.ebay.co.uk/itm/Lathe/123418959999?
05:47 AM gloops: direct english copy of atlas 10 inch lathe
05:49 AM XXCoder: lots cleaning needed
05:49 AM XXCoder: wood only or?
05:50 AM gloops: it is a metal lathe, looks like its been used for wood recently
05:51 AM gloops: screw cutting
05:51 AM gloops: http://www.lathes.co.uk/atlas/page9.html
05:52 AM gloops: real atlas usually fetches £350 + here
05:53 AM gloops: should keep buying all these cheap machines, save them until theres enough to send a container to USA, would make 10x profit
05:53 AM jthornton: neighbor has a dog problem again, dog killed two hens in the last two days
05:57 AM gloops: hard to stop them once theyve done it
05:57 AM XXCoder: interesting gloops
05:57 AM XXCoder: well if you got a boat that can travel across ocean...
05:58 AM gloops: i see loads of people trying to find lathes and mills in the usa, seems difficult to find anything in the remote parts
05:59 AM gloops: then again - not worth transporting them there because of fuel/time costs
05:59 AM jthornton: 12 gauge seems to work to stop them
06:00 AM gloops: you can get to sea in 2 hours from anywhere here, in the usa its more like 2 days
06:00 AM XXCoder: checked if magig made a comeback in videos. nope
06:00 AM gloops: is he still alive then?
06:00 AM jthornton: na, you can get to the coast in 12 hours
06:00 AM XXCoder: gloops: no just hoping grandson would re-up videos
06:00 AM XXCoder: or maybe himself dunno
06:01 AM gloops: XXCoder yeah its a shame the videos were taken down, theyre a big help to people, ive linked loads to them
06:01 AM jthornton: yea so far, I didn't have a good shot at it yesterday so I put a 9mm near the dog
06:01 AM gloops: oh they were your hens jthornton
06:02 AM jthornton: no my neighbor's hens but I help her out sometimes, she was at work and I went to check on them and saw the dog
06:02 AM jthornton: but didn't have my 12 gauge with me
06:03 AM XXCoder: not her dog?
06:04 AM jthornton: her neighbors dog... when she sent her a text she replied back shoot the damn dog I'm at work
06:04 AM gloops: lol
06:04 AM XXCoder: lol ok
06:05 AM jthornton: so they don't give a shit about the dog I guess
06:05 AM jthornton: kinda sad people are like that with animals
06:07 AM gloops: if nobody is interested in the dog seems natural hes going to find his own entertainment, and dinner maybe
06:08 AM jthornton: the dogs never eat the chickens just kill them and sometimes carry them off a bit
06:12 AM gloops: well, 4 plates to weld on, last bit always seems to be hardest to get up and do, will only take 20 minutes
06:13 AM jthornton: what are you making?
06:13 AM gloops: its a rolling bandsaw lol
06:14 AM gloops: actually, surprised how its gone, it might work
06:14 AM jthornton: for wood?
06:14 AM gloops: yeah for logs mainly, rolls along on skate bearings, screw lift either side to adjust cut
06:16 AM gloops: much smaller and more amateur version of this https://www.youtube.com/watch?v=UO8H0NWn-bY
06:16 AM jthornton: I keep telling my buddy he needs a lift and spin for his sawmill
06:17 AM jthornton: dang that is a nice one, a bit short but nice
06:18 AM jthornton: I wonder who squared off the wood for the video lol
06:18 AM gloops: im not sure how stiff they need to be until ive tried it, ive got 2ft cut accross, might have to reduce that
06:18 AM jthornton: my buddy has this one https://www.harborfreight.com/saw-mill-with-301cc-gas-engine-62366.html
06:19 AM jthornton: how wide is your blade?
06:19 AM gloops: im going to try half inch blade, apparently narrower blade is better for green wood
06:20 AM gloops: hmm his has 1 and a quarter blade
06:20 AM gloops: might try 3/4 first then
06:21 AM jthornton: this is a big lumber area with lots of hardwood forests and most resaw blades I've seen are pretty wide like 2"
06:21 AM XXCoder: 2 inches?
06:21 AM gloops: yeah they use big blades here on the big bandsaws, i suppose it depends on the motor too, its only 1.5 hp ive got
06:21 AM XXCoder: pretty wide allrigght
06:22 AM jthornton: yea, that is for high speed resawing of cants (square lumber)
06:22 AM gloops: but apparently with green wood theres more friction/gum etc to trap the blade, narrower blade gets through easier
06:22 AM jthornton: resawing would be on dry wood
06:23 AM jthornton: my buddy will cut up the log the same day he dropped it with his sawmill
06:23 AM gloops: if i put a green log through my small bandsaw it flies through with half inch blade, but thats only 8 inch cut
06:25 AM XXCoder: the woodgears guy is so busy moving lately apparently
06:25 AM XXCoder: been quiet for while and finally update recently
06:27 AM jthornton: got any photos of the sawmill?
06:53 AM gloops: not yet, ill get some when its rolling, maybe tommorrow
06:53 AM jthornton: what are you using for wheels?
07:01 AM gloops: i got an old bandsaw, complete with wheels, adjusters etc, chopped it and put a 1 piece of box section for the spine, its very rigid so far as i can try and twist it
07:02 AM gloops: thing is if it twists im thinking the blade is gonna come off
07:16 AM jthornton: yea that makes sense to have a rigid frame for the saw
07:30 AM jthornton: well crap the pseudo door did not open at dawn... now to wait another 24 hours to test the code
07:30 AM XXCoder: doh
07:30 AM XXCoder: api bug?
07:41 AM pink_vampire: my soldering iron tip die
07:45 AM pink_vampire: https://i.imgur.com/g01hfXv.png
07:48 AM gregcnc: it's a consumable
07:50 AM pink_vampire: all start with my new mini keyboard,
07:51 AM pink_vampire: i waned to make her a surgery, but the tip of the soldering iron was wayy too bad,
07:52 AM pink_vampire: https://i.imgur.com/17MYtJC.png
07:53 AM pink_vampire: https://i.imgur.com/FNnf8V2.png
07:54 AM pink_vampire: so i made a tip for my soldering iron with the lathe
07:55 AM XXCoder: nice
07:56 AM pink_vampire: worked https://i.imgur.com/KAQ70iN.png
08:01 AM XXCoder: thats good
08:02 AM pink_vampire: it's is awesome! the seam was 3mm and 24.5 mm long
08:12 AM XXCoder: :)
08:23 AM Deejay: making your iron tip? nice!
08:23 AM Deejay: *own soldering iron tip
08:23 AM Deejay: so excited, cannot type any more ;)
10:13 AM Roguish: hey any of you machinist out there. what is the best type of tap for rigid tapping? using a floating tap holder in an older Haas.
10:15 AM gloops: jthornton you want a dog like this https://video.twimg.com/amplify_video/1050367055164305408/vid/400x400/83pPC31VAXbXBPAp.mp4?tag=8
10:19 AM gloops: yes they know in here Roguish, gregcnc
10:20 AM sync: Roguish: just put the tap in a regular holder
10:20 AM sync: you don't need to float it
10:22 AM Roguish: gotta use the floatting holder. old Haas, not quite good enough for rigid rigid tapping. floating holder is an ER32 collet type.
10:22 AM gregcnc: any tap supplier has suggestions, but spiral point for through holes, spiral flute for blind. form tap if you like them
10:22 AM Roguish: really just not sure what type of tap? spiral, straight or what????
10:22 AM Roguish: this project has thru holes in mild steel.
10:23 AM rmu: pink_vampire: what material did you use? and how did you wet the tip with tin?
10:31 AM cradek: definitely spiral point
10:32 AM cradek: get good name brand HSS taps
11:01 AM * jthornton doesn't want a dog...
11:01 AM fragalot: lol
11:02 AM jthornton: Roguish: for through holes a spiral point, for blind holes a spiral flute tap
11:02 AM jthornton: I like OSG ElectraLube taps for CNC
11:03 AM fragalot: i've alwayds wondered why you can't just use a spiral flute for thru holes too
11:06 AM gregcnc: nothign stopping you they just cost more?
11:06 AM fragalot: i guess
11:07 AM cradek: they are much weaker and more fiddly
11:07 AM cradek: and the chips come up and get twisted around the tap, instead of just being pushed through
11:08 AM cradek: so you can sure use them, but spiral point are so much nicer to use that it's worth having both
11:08 AM fragalot: cradek: thanks :)
11:09 AM gregcnc: fragalot have you never used both?
11:09 AM fragalot: i have
11:09 AM gloops: how much are these spiral flute cutters costing then? ive got a few in a box ill never use
11:09 AM fragalot: just never found a real downside to spiral personally
11:09 AM gregcnc: iirc the cutting torque for spiral flute is quite a bit lower
11:12 AM gloops: not that expensive, ill keep them
12:46 PM gloops: did you get the handwheel working yet Blumax?
12:50 PM Blumax: gloops, yes but the homing is still not automatic :(
12:51 PM Blumax: I do the homing machine that makes XYYZ, then I go to the menu for A
12:51 PM Blumax: If I disable the handwheel it's automatic :(
12:51 PM gloops: hmm strange
12:52 PM Blumax: yes
12:53 PM Blumax: I read on the doc linuxcnc that we could disable the homing on an axis in the file hal but I have an error ...
12:54 PM Blumax: http://linuxcnc.org/docs/devel/html/config/ini-homing.html
12:54 PM Blumax: Section 3.14. Inhibiting Homing
01:06 PM jthornton: you need to tell the exact error message
02:24 PM pink_vampire: rmu: I have no idea, it was scrap i think it is just cold rolled steel, and i did it at the beginning as a lathe project just for fun, but it turns out very nice and much better than i expected, for "wetting" the tip the first time I used "tip tinner compound " you just holed the tip it the tip tinner compound for few seconds and you have it. https://www.youtube.com/watch?v=J3OlDsKvzss
02:26 PM Tom_L: while it's hot or cold?
02:26 PM pink_vampire: hot
02:27 PM pink_vampire: it is melt the compound and make nice uniform coat of tin on the tip
03:23 PM Rab: pink_vampire, looks great. FWIW I believe the composition of "real" tips (typically iron-clad copper) is chosen to minimize alloying with the solder and compromising the joint. If you're doing critical electronics work, might be something to think about.
03:24 PM pink_vampire: let me show you what i did with it
03:25 PM Rab: Might be copper for thermal conductivity, iron as a barrier to keep the copper from alloying. Steel doesn't have very good thermal conductivity by comparison.
03:25 PM XXCoder: copper has pretty good heat conductivity also
03:26 PM pink_vampire: but copper is bad, it its too soft so it will deform over time
03:27 PM XXCoder: more expensive if I remember right
03:28 PM pink_vampire: the mini keyboard surgery https://i.imgur.com/MYqHHaY.png
03:29 PM XXCoder: moving buttons around eh
03:29 PM pink_vampire: it was done with the tip i made
03:32 PM pink_vampire: XXCoder: yeah, on the top in a premium location they put "mute" and "explorer", i changed it to be shift and ctrl
03:32 PM XXCoder: interesting
03:32 PM pink_vampire: and i set the linux cnc to work with shift and also ctrl for max jog
03:33 PM pink_vampire: https://i.imgur.com/hU1VS7j.png
03:33 PM XXCoder: wow such perfect setup for pendant
03:34 PM XXCoder: I prefer encoder wheel myself but nice indeed
03:38 PM pink_vampire: right side control the X and Y, and the left side control Z and C, and what nice about the "new" shift and ctrl, is the ability to just jog the machine without moving the hands all over the pendant, other than that, no remap was done, so the "new" shift on the left can work with the arrow keys on the right, and the "new" ctrl on the right can work with the ZXCV on the left.
03:41 PM DaViruz: couldn't you have remapped them with xmodmap?
03:41 PM pink_vampire: if you look closly on the keyboard photo you will the the problem, the original Ctrl and Shift, was located on the bottom left corner, so to make something like Ctrl+Z was a bit tricky
03:41 PM XXCoder: DaViruz: it wasnt apparently a normal key
03:42 PM XXCoder: so maybe wouldnt work with remap
03:42 PM XXCoder: ya saw
03:42 PM DaViruz: i think the multimedia extension key-thingies should be remappable
03:43 PM pink_vampire: DaViruz: i did it originally, but it wasn't smooth, linuxcnc just ignore it several times, and freeze.
03:43 PM DaViruz: oh
03:44 PM pink_vampire: so you can't go wrong if it's done on the hardware level
03:44 PM DaViruz: that's true, never having to worry about it again is nice
03:46 PM pink_vampire: but all the other keys like the Vol+ Vol- Next Back, was configure in the axis python file, so it is native to linuxcnc to work with them to control the Z and C axis.
04:13 PM Deejay: gn8
04:18 PM _abc_: Hi. Does anyone know if a bidirectional lpt port in linux can be read, for testing, as a device file? dd if=/dev/lp0 ... ?
04:23 PM pink_vampire: i'm not sure
04:23 PM pink_vampire: i guess just try it.
04:24 PM _abc_: I tried, it is not ok.
04:26 PM pink_vampire: mm
07:37 PM robotustra: evening
07:37 PM infornography: lo
07:38 PM robotustra: 127.0.0.1?
07:39 PM infornography: ?
07:40 PM infornography: you are groot?
08:10 PM robotustra: who is groot?
09:23 PM skunkworks: more ramblings...
09:23 PM skunkworks: https://www.youtube.com/watch?v=8iqdw16afA0