#linuxcnc Logs

Mar 19 2021

#linuxcnc Calendar

12:53 AM XXCoder: HMM mill restore https://youtu.be/zGv7MkdIP_w
01:08 AM roycroft: well that was productive
01:08 AM roycroft: earlier today i found the m2 screws i had misplaced right after i bought them
01:08 AM roycroft: so i just went out to the shop and secured the wifi card in my linuxcnc computer
01:09 AM roycroft: which is what needed the m2 screws
01:09 AM roycroft: and now the linuxcnc machine has working wifi for the first time
01:09 AM roycroft: that's only a tiny step forward, but it's a step forward
01:11 AM XXCoder: awesome!
01:11 AM XXCoder: saw your router thing too. funny
01:11 AM XXCoder: 60 usd less jeez
01:13 AM Bleeptech: I went and dropped $20 on a new old stock SIIG P11012 parallel port card because I'm sick of looking for a working port and then finding nothing but dead motherboards in all the old machines I have. LOL
01:13 AM XXCoder: :)
01:23 AM roycroft: i have so many other projects going right now, but i don't want to finish them all up and then have to do the whole cnc conversion - i'll want to start making my jigs with the mill as soon as the other projects are done
01:23 AM roycroft: so i'm going to start doing little bits of work on the conversion while working on the other projects
01:24 AM roycroft: hopefully i'll have made significant progress by the time the other projects are complete
01:24 AM Bleeptech: I'm caring for this wounded beastie. https://imgur.com/a/6qgeGqY
01:38 AM Bleeptech: What was that RT_ I was told to try to get the jitter <40K ?
01:39 AM * Bleeptech just had to plug in power to the the jukebox and jumper a network cable from it to the CNC in order to get a network connection at that end of the shop.
01:39 AM XXCoder: disable all power savung stuff in bios
01:39 AM XXCoder: there was bit more but cant remember
01:39 AM Bleeptech: Did that.
01:41 AM Bleeptech: Was it the PREEMPT_RT packages ? Just checked Synaptic and it says they're already installed.
01:48 AM Bleeptech: Aha. I dug through the scrollback buffer. It was PREEMPT_RT and RTAI.
02:09 AM CaptHindsight: Bleeptech: look for RTAI
02:09 AM CaptHindsight: turn off all virtualisation, speed stepping, power management
02:12 AM Bleeptech: CaptHindsight: With both of them installed it still wants to jitter at ~35K ... Lowest was 16K and I drove it to 4200K [4.2M]. Time to find a newer machine and plug in the SIIG parport PCI card I bought today. LOL
02:13 AM Bleeptech: Plugged in a second monitor and had 10 copies of glxgears scattered around to hit the max.
02:14 AM Deejay: moin
02:14 AM Bleeptech: CaptHindsight: Failing everything else I have an original AMD 8/4 Bulldozer sitting under the bench but it's a power hog.
02:18 AM CaptHindsight: best test is playing a youtube
02:18 AM CaptHindsight: in Firefox
02:18 AM CaptHindsight: worst hit every time
02:20 AM CaptHindsight: http://linuxcnc.org/docs/2.8/html/getting-started/getting-linuxcnc.html#cha:Installing-RTAI
02:21 AM XXCoder: capt yeah thats why I linked to forever fire movie on youtube
02:21 AM XXCoder: its HD video even
02:21 AM CaptHindsight: Bleeptech: you have to reboot and choose the RTAI kernel vs preemp_rt
02:31 AM Bleeptech: CaptHindsight: Ah, rebooted but wasnt paying attention. I'll try again in the morning and make sure to try the RTAI.
04:12 AM lag_ is now known as lag
05:02 AM JT-Cave: morning
06:31 AM Loetmichel: MAAAAN!!!!!1111oneleven. IT PISSES ME OFF WHEN COWORKERS CANT ASK! Why do they first saw a tool in half instead of asking me how to get that stuck M12 fastening bolt out??? Now i have to get a new special hardened bolt for the bending brake... *GGGRRRRRRRRRRRRR* /rant :(
06:36 AM Loetmichel: hmm, judging by the terrified face of the employee thats the first time he ever has seen me angry... i think i overdid the chewing out a bit. :)
07:04 AM JT-Cave: can't take it back...
07:06 AM Loetmichel: its more because i NEVER get angry. so when the lighning finally strikes they are terrified.
07:30 AM JavaBean: beware the quiet ones
07:32 AM sensille: see Falling Down
07:34 AM Tom_L: morning
07:38 AM Loetmichel: hehe, just got a call from the car mechanic. "Everything but the ragtop reset done. Shall i do the Road safety test renewal as well? it still has 2 months beft but that way you are good for the next two years." "yeah, not like it matters any more. BTW: how much cost are we talking right now?" "5k8 right now" *Coughing fit* :)
08:41 AM likevinyl is now known as Guest83493
08:48 AM miss0r: I should stop using machinery for a while. I just wrecked yet another workpiece, because I was too lazy to double check that I tightened all the clamps proberly. Apparently I didn't, and when I went to do a 15mm hole on a 55degree surface with a carbide drill, it dragged it sideways wrecking the finished surface.
08:48 AM * miss0r is realy pissed right now
08:48 AM * Tom_L sends miss0r back to tech school
08:49 AM miss0r: Never went there. That might be the problem... :)
08:49 AM Tom_L: me either
08:49 AM JT-Cave: what's a school?
08:51 AM * JT-Cave is fighting python for backslashes
08:51 AM Tom_L: did the 18hr drive bit yesterday. just catching up
08:51 AM miss0r: https://imgur.com/a/DEhdzxr
08:51 AM miss0r: Me too
08:51 AM miss0r: but I just reset what ever advantage I gained by scrapping this
08:51 AM Tom_L: new MB arrived while i was afk
08:52 AM Tom_L: miss0r, you making those for others too?
08:52 AM miss0r: yeah
08:53 AM miss0r: I'll have a busy weekend. I need to complete another three units from scratch for monday morning, where I have to hand'em in for surface treatment
08:54 AM miss0r: and with my 3-axis cnc, there are alot of setups with these
08:54 AM miss0r: 5 seprate setups for each unit on the CNC, and one initial setup in the lathe
08:55 AM Tom_L: maybe you should run several at a time
08:55 AM miss0r: I don't have the means for having more than one in the mill at a time
08:55 AM miss0r: but I complete one setup on x units, then continue to the next
08:55 AM Tom_L: run each position several times
08:55 AM Tom_L: ahh ok
08:56 AM miss0r: well, not the last three setups, though
08:56 AM miss0r: as the mount is the same, but the setup part is moving the universal dividing head
08:56 AM miss0r: and it would not make sense to re-line-up each unit for each setup ect...
08:57 AM miss0r: Fack. The operation with the disk cutter on the sides takes FOREVER to run. !
08:59 AM miss0r: I wonder if I can come up with a better solution for those slots in the side.
08:59 AM miss0r: the circular cuts there.
08:59 AM miss0r: This is me asking you guys :D
09:01 AM Tom_L: not without another position
09:01 AM Tom_L: quicker to rough mill them then use the cutter for a cleanup
09:02 AM miss0r: Roughmill how?
09:02 AM Tom_L: regular endmill
09:02 AM miss0r: a regular endmill, you thinking?
09:02 AM miss0r: hmm
09:02 AM Tom_L: but setup would take longer
09:02 AM miss0r: yeah sure. but what takes the longest - without comparison - is the disk cutter run
09:03 AM miss0r: The best sound/result I can get it at only 2mm/min feed
09:03 AM Tom_L: no doubt. you gotta run large diameter cutters slower
09:03 AM miss0r: (which is insane, I know, but the engagement is nuts)
09:03 AM Tom_L: does the pocket have to be flat on the bottom?
09:03 AM Tom_L: use a ball/bull mill
09:04 AM miss0r: sure
09:04 AM miss0r: it does not need to be flat there. That slot is just for clearance for the bolt that attaches the console
09:04 AM Tom_L: get a bull mill
09:05 AM Tom_L: it will round the bottom but meh
09:05 AM miss0r: hmm... Finished surface finish is realy important for me
09:05 AM Tom_L: or change the pocket to fit the bolt
09:05 AM miss0r: I mean, I stick my name on it, so it better be as good as I can make it
09:06 AM miss0r: the reason for the large "radius" cutout is because it is nice to actualy be able to move the spanner to tighten the bolt
09:06 AM Tom_L: ok, didn't know how the assembly works
09:07 AM miss0r: No worries - how could you :)
09:07 AM Tom_L: a straight cut with an endmill would remove too much too probably
09:07 AM Tom_L: for the side hole
09:07 AM miss0r: I'm worried it would
09:07 AM Tom_L: well those are about all your choices
09:08 AM miss0r: the part where the two open slots for the bolts are, is only 8.5mm thick. If I remove any more support I'm afraid it will be too soft to be able to compress the gasket across the entire surface
09:08 AM miss0r: even though I have reduced the clamping area by pocketing out the back
09:09 AM veegee: Contemplating buying this trailer: http://www.miskatrailers.com/open-steel-trailers/low-bed-floats/7-ton-bobcat-low-bed-float/t31
09:09 AM veegee: 2 x 7,000lb axles means I can load a forklift, which is great
09:39 AM perry_j1987: morning all
09:41 AM gregcnc: that video the other day of that shop move. Was that trailer rated for the 16kLb fork lift?
09:48 AM * roycroft just needs to sort out how he'll move a 500lb crate up his driveway, if necessary
10:04 AM Loetmichel: gregcnc: i once hepled transporting 26 tons of cobblestones stacked into a 5 ton rated RV...
10:04 AM Loetmichel: german engineering ;)
10:05 AM Loetmichel: according to the driver the RV didnt even drive all that different
10:06 AM roycroft: i've hauled a ton in a vw bus
10:06 AM roycroft: as long as it has the correct tires it handles it quite well
10:28 AM Loetmichel: it was an ex military truck though. rated for 5 tons cargo, but that is without all the RV stuff installed. and without the cow bars... -> http://www.cyrom.org/palbum/main.php?g2_itemId=16316
10:31 AM Bleeptech: roycroft: Cut chunks of pipe and make rollers if you have to.
10:33 AM * Bleeptech used a tiny trailer and a rebuilt/repurosed power wheelchair chassis to move the 300kg CNC table the last 40m to the shop.
10:49 AM perry_j1987: 500lb could be doable with enough friends and free beer
10:51 AM roycroft: bleeptech: my issue is that there is a fairly steep slope on the driveway
10:51 AM roycroft: getting the crate on wheels is no problem
10:51 AM roycroft: pushing it uphill may be
10:51 AM roycroft: i've done it before - i just have to figure out how i want to do it this time
10:52 AM roycroft: if i have a cooperative driver with a pallet jack the driver could lower it on the liftgate with the pallet jack, and pull the crate up the driveway on the pallet jack while i push from behind
10:52 AM roycroft: that's very safe and easy for that relatively light amount of weight
10:52 AM roycroft: if the driver just dumps it off the lift gate onto the street that's another story
10:52 AM Bleeptech: roycroft: Ropes, pulleys and an anchor point. Or cheat like I do, feed out the winch cable from the shop tug and tell it to pull. LOL
10:53 AM roycroft: there are no good anchor points
10:53 AM Tom_L: block & tackle
10:53 AM roycroft: that's the real problem
10:53 AM Tom_L: corkscrew for a dog leash in the ground
10:53 AM Tom_L: or two
10:53 AM roycroft: i should probably install one in the garage floor
10:53 AM roycroft: it's concrete all the way up to the garage
10:54 AM roycroft: no "ground"
10:54 AM roycroft: for that matter, i could install an anchor in the driveway itself
10:54 AM roycroft: and that may be something i want to do for future deliveries
10:54 AM Bleeptech: roycroft: Drill in an anchor point and you can unscrew the hook when you're not using it ?
10:54 AM roycroft: but that's not going to happen between now and monday
10:54 AM roycroft: yeah, something like that is what i'm thinking
10:55 AM * Bleeptech offers to loan roycroft a hammer drill and 1" bit.
10:55 AM roycroft: but i'd have to do more than just drill it - the driveway concrete is fairly thin, and the garage slab not much thicker
10:55 AM roycroft: i have a nice sds drill, but thanks
10:56 AM roycroft: if that workbench that i built last summer were located by the garage door and not in the back of the garage, it would make a sturdy enough anchor point
10:58 AM Bleeptech: roycroft: Drill 2 - 1" or 1-1/2" holes a foot deep right outside the door and sleeve them with heavy wall pipe. Angle them when you drill them to make a better anchor point. Then you can drop in a pair of pins and use them for your anchor.
11:00 AM Bleeptech: roycroft: Actually, how wide is the door frame? I've dropped a 10' 4x4 post across an 8' wide doorway and used that before.
11:00 AM roycroft: actually, with the slope of the driveway, installing the anchor point vertically would be enough of an angle
11:00 AM roycroft: it's 14' wide
11:00 AM roycroft: and i've done that before, but don't have any 4x4s that wide, and i'm not going to buy one just for this
11:01 AM Bleeptech: Scarey. LOL. That'd be a 16 footer and a lot of bow in the middle.
11:01 AM roycroft: although i do have a fence to mend, which needs some 8' fence posts
11:01 AM roycroft: it's only 500 lbs
11:01 AM roycroft: on a couple 4 wheel dolleys that's really not much of a pull
11:01 AM Bleeptech: Buy a pair of 16' and cut them in half later ?
11:02 AM * Bleeptech hunts for a better machine to try linuxcnc on.
11:03 AM roycroft: i'll consider doing that
11:03 AM roycroft: and i did just buy that 15" beam saw last month
11:03 AM Bleeptech: Tried RTAI and the jitter went through the roof. 100k+. :/
11:03 AM roycroft: i've not had an opportunity to use it yet
11:03 AM roycroft: it would be perfect for 4x4s
11:13 AM CaptHindsight: Bleeptech: sounds like a bad BIOS if it's that AMD cpu that your mentioned
11:15 AM CaptHindsight: things not turning off as requested
11:28 AM Bleeptech: CaptHindsight: That was my thought. The board says Asus but the bios looks sketchy. Dug a Dell Precision 380 out of storage and I'm scrubbing off the XP somebody left all over it. ;D
11:35 AM Bleeptech: And it pops up with a jitter of 30K right away booting off the Live. :|
11:35 AM Bleeptech: And one copy of glxgears kicks it to >50K. Anybody want to buy a 2.8gHz boat anchor ? xD
11:39 AM Tom_itx is now known as Tom_L
11:52 AM CaptHindsight: Bleeptech: lots of the leased PC make by HP, Dell and similar shipped with few BIOS features to cut down on support issues
11:53 AM CaptHindsight: others by the same vendors have had some of the lowest latency scores
11:55 AM Bleeptech: candyonetoo: Got an HP AMD A8 box that was good for Blender with nothing but the onboard video. Trying it now.
11:55 AM Bleeptech: Crap. #@$%^#$! Nick completion.
11:56 AM CaptHindsight: no problem
11:56 AM Bleeptech: Youch! 150K+
11:58 AM Bleeptech: Tell it to reset the stats and it hits 75K in under a second. WTF ?
11:58 AM CaptHindsight: I have a similar box here with that cpu and it's ~10uS, Gigabyte MB
11:59 AM CaptHindsight: BIOSes are generally shit, as long as it ran windows of the day they considered it done
11:59 AM * Bleeptech is running through a stack of buggy and obsolete junque.
12:00 PM CaptHindsight: the SDK's were also crap
12:00 PM CaptHindsight: a vendor would rarely touch source
12:00 PM CaptHindsight: the SDK would jam a bunch of binary modules together and you'd hope it would work
12:01 PM CaptHindsight: it was mostly tick boxes for features you wanted
12:02 PM CaptHindsight: and the SDK would not automagically match the actual features to the BIOS config screen the user would see
12:02 PM CaptHindsight: so you can end up with BIOS features in the config area that is just ignored by the BIOS
12:04 PM CaptHindsight: but with a 1-2% profit margin and if windows started they were fine with it
12:15 PM Bleeptech: CaptHindsight: I've got a stack here that barfed running Window$ [which is why I ended up with them] and they've been happily running linux but the jitter figures are off the chart.
12:17 PM Tom_L: feed em some java
12:17 PM Bleeptech: And since the Covid hit the fan the state employees that run the surplus property sales are in hiding and there hasn't been a sale in over a year. Which kills my only other semi-reliable source for cheap hardware.
12:20 PM roycroft: festoolrecon.com has not had anything for a year for the same reason
12:20 PM roycroft: and i need one more sander - the most expensive one - so i want to wait for a recon
12:26 PM FinboySlick: roycroft: If you get the most expensive sander, you have to call it Bernie.
12:28 PM roycroft: i don't name my tools
12:28 PM roycroft: i use them
12:30 PM CaptHindsight: Bleeptech: had the best luck with low jitter using Gigabyte, Asus and MSI
12:31 PM CaptHindsight: Asrock and Biostar were flakey, HP and Dell was 50/50 if the BIOS was full featured vs trimmed down
12:32 PM Bleeptech: What a toad! HP Pavilion 500-017c Booted to RT from teh live and sitting idle with nothing but the latency test open it's hit >750K. Is it just me or is it the newer the machines get the worse the jitter gets ?
12:32 PM FinboySlick: CaptHindsight: Weren't you involved with the linuxbios project too, or do I have you confused with someone else?
12:32 PM JT-Shop: my RPC is named Linus
12:33 PM CaptHindsight: FinboySlick: yeah, but AMD stopped supporting open source for firmware ~10 years ago
12:34 PM Bleeptech: This bios has shitloads of security options and f-all else. :/
12:35 PM CaptHindsight: the name also changed to coreboot and Google still uses it for their chromebooks
12:35 PM CaptHindsight: but there are few comments in the source and no explanation of what and why settings are the way they are
12:36 PM CaptHindsight: so it's like getting a kernel config with no explanation
12:37 PM CaptHindsight: it might be useful again with Risc-V
01:00 PM Bleeptech: OK. This Lenovo is doing better than the rest. 25K ns of jitter with the test, glxgears and a terminal window hit with ' sudo find / -name "*atency*" ' .
01:09 PM Bleeptech: CaptHindsight: Just lost connection... Is 25K ns acceptable or should I keep digging for a better PC ?
01:20 PM CaptHindsight: Bleeptech: it's not bad
01:26 PM CaptHindsight: Bleeptech: how many steps per second do you want/need?
01:30 PM JT-Shop: wonderful just got the new battery for the Goldwing in and the top of the battery is smashed in... not one bit of packing in the box so it just bounced around in there all the way
01:34 PM XXCoder: Loetmichel: :( just cutting a bolt
01:40 PM Bleeptech: CaptHindsight: It'd be great if the mobo or PSU hadn't just crapped out. LOL
01:40 PM * Bleeptech is off to town to scrounge for parts.
01:42 PM CaptHindsight: Bleeptech: 25,000 nS will get you ~16666 steps per second
01:44 PM CaptHindsight: 5mm lead screw with 200 steps per rev motor = 416mm/sec
01:44 PM CaptHindsight: 5mm lead screw with 200 steps per rev motor and 2x microstepping = 208mm/sec
01:45 PM CaptHindsight: 5mm lead screw with 200 steps per rev motor and 4x microstepping = 104mm/sec
01:53 PM Eric__: I finally looked up what the error was on our cable modem, and the webpage suggested a wiring problem. I had an unnecessary splitter and when I got rid of it that seems to have solved the issue.
01:54 PM Eric__: the benefits of reading the error message cannot be overstated
01:56 PM * JT-Shop is not having any luck getting a new battery for the wing
01:58 PM XXCoder: JT-Shop: battery for wing?
01:58 PM XXCoder: Eric__: indeed
01:58 PM CaptHindsight: JT-Shop: I have an all aluminum radiator on the way from Ca, do you think it will show up without any extra holes?
01:58 PM JT-Shop: CaptHindsight, depends on how it's packaged
01:59 PM JT-Shop: GoldWing battery was in a box 4x the size of the battery with no packing material at all
01:59 PM JT-Shop: XXCoder, GoldWing or in my case BlueWing
01:59 PM gregcnc: oops? amaxon ?
02:00 PM XXCoder: ahh. was wondering what wing battery was lol
02:00 PM XXCoder: greg good chance its amazon heh
02:00 PM CaptHindsight: JT-Shop: how light bulbs used to be shipped
02:01 PM Eric__: amaxon likes to send things poorly packaged. Got two utility sinks that were perforated by ups, no extra charge
02:02 PM Eric__: finally got it from home depot, they at least allow you to inspect before taking a special order
02:02 PM CaptHindsight: ebay seller, so I hope it will be better
02:03 PM JT-Shop: also the foam packing inside the battery box was missing on top, I've bought enough of the damn things to remember what's in the box...
02:03 PM XXCoder: likely "new" used
02:03 PM XXCoder: returned and reshipped without checking
02:04 PM CaptHindsight: sounds that way, or a return with missing packing material
02:05 PM gregcnc: 150 for this? https://www.ebay.com/itm/124184128836
02:05 PM XXCoder: lol expensive for crappy weld job
02:06 PM CaptHindsight: made from real metal!
02:06 PM XXCoder: probably not butteralloy
02:07 PM XXCoder: https://www.ebay.com/itm/Shipping-Container-Leveling-Jig-Lifting-Jack/164444440344 hah
02:39 PM JT-Shop: on a good note Junior the runt deer found the apples and when I stepped out of the machine shop to piss it was about 10' away and just stood there... no doubt waiting for me to go back in and bring it some corn
02:50 PM Eric__: I really enjoyed the AvE shipping container moving video, but I'm surprised he didn't crush himself
02:54 PM roycroft: ave is another of those youtubers who seems like a nice guy, and has a good head on his shoulders, but whose demeanor grates on me to the point of not being able to watch his videos
02:55 PM roycroft: this old tony is another one
02:56 PM roycroft: mr pete is kind of like that, but he's more creepy than nerve-grating
02:56 PM gregcnc: i hadn't seen that ave, I stopped watching
02:56 PM gregcnc: that is some of the dumbest shit I've seen
02:56 PM roycroft: and i'm not so sure mr pete is actually a nice guy
02:56 PM roycroft: i think this old tony and ave probably are
03:01 PM gregcnc: I know a guy who met him. he said mr pete was nice
03:03 PM roycroft: perhaps
03:06 PM roycroft: i got the antennae mounted on my linuxcnc computer at lunch time today
03:06 PM roycroft: so thats good
03:07 PM Rab: Both of those container flanges look pretty amateur. The $175 one looks worse, but at least it has a cup on the top to keep the jack in place.
03:09 PM gregcnc: I need to level a container for the club i guess they rented railroad jacks before
03:09 PM Rab: I leveled my container without such a thing, by digging under the frame. It was heavy (40' HC), I kept dropping pavers in the hole under the jack and it kept driving them down into the ground. I was about ready to pay $150 by the end of it.
03:09 PM XXCoder: love this channel https://youtu.be/NxdDzY6Nz0M
03:09 PM XXCoder: video is second part
03:16 PM XXCoder: boy i can see why he hates to remove finish lol
03:16 PM XXCoder: besides from keeping 100 year+ paint
03:28 PM roycroft: do that long enough, rab, and your pavers will start coming out of the ground in china, where they will be harvested and sold back to you
04:55 PM _unreal_: NoGodDamnIdea, hi
04:56 PM NoGodDamnIdea: hi _unreal_
04:56 PM NoGodDamnIdea: i almost hanged myself this week
04:56 PM _unreal_: clearly you failed
04:56 PM NoGodDamnIdea: to some degree
04:56 PM _unreal_: the best way is to have a backup plan
04:56 PM NoGodDamnIdea: i had great success today
04:57 PM _unreal_: so what have you achived
04:57 PM NoGodDamnIdea: but i swear to god i will never use adapted firmware
04:57 PM _unreal_: whats new what choices did you make?
04:57 PM NoGodDamnIdea: i tried using adapted versions of grbl for my ramps board
04:57 PM NoGodDamnIdea: like 7-8 of them
04:57 PM NoGodDamnIdea: none of them worked
04:58 PM _unreal_: I dont know anything about a ramps board regardless
04:58 PM NoGodDamnIdea: i got it to work once somehow
04:58 PM _unreal_: I can help with the grbl part easy though
04:58 PM NoGodDamnIdea: i got a vid if you are interested
04:58 PM NoGodDamnIdea: but today i found estlcam
04:58 PM NoGodDamnIdea: which worked pretty great
04:58 PM _unreal_: I own ESTL cam
04:58 PM NoGodDamnIdea: but I could not make the endstops to work
04:58 PM NoGodDamnIdea: for the love of me I could not
04:58 PM _unreal_: :) i CAN HELP
04:59 PM _unreal_: first DO... they function?
04:59 PM NoGodDamnIdea: yes
04:59 PM NoGodDamnIdea: pretty well
04:59 PM _unreal_: ok
04:59 PM _unreal_: osecond
04:59 PM _unreal_: does it TRIP out with end stop signals when just trying to move the machine and no end stops are hit?
04:59 PM _unreal_: false signals
05:00 PM NoGodDamnIdea: no
05:00 PM NoGodDamnIdea: wish i had recorded it move
05:00 PM NoGodDamnIdea: i also put some ridiculous steps for the motors
05:01 PM NoGodDamnIdea: 51200
05:01 PM NoGodDamnIdea: for it to work at decent speeds
05:02 PM _unreal_: ok first off
05:02 PM _unreal_: DONT go fast
05:02 PM NoGodDamnIdea: ah and also
05:02 PM NoGodDamnIdea: when I turn it on the motors are working for some reason
05:02 PM _unreal_: you want to target the same feed rates that the web site lists for the machine
05:02 PM NoGodDamnIdea: like they make some noise
05:02 PM _unreal_: that static sound
05:02 PM NoGodDamnIdea: but they dont move
05:02 PM _unreal_: thats good
05:02 PM _unreal_: do the motor lock ?
05:02 PM _unreal_: hold position?
05:03 PM NoGodDamnIdea: the drivers get hot tho
05:03 PM _unreal_: do they have heat sinks?
05:03 PM _unreal_: and have you tuned the current to the motors
05:03 PM NoGodDamnIdea: well i used universal gcode sender or something and when I turn it on it says alarm something
05:03 PM _unreal_: thats normal
05:03 PM NoGodDamnIdea: they have heat sinks, those get hot, today I put a fan next to it and fixed it
05:03 PM NoGodDamnIdea: yes I have tuned them
05:04 PM _unreal_: JDO THE MOTORS get hot
05:04 PM NoGodDamnIdea: warm
05:04 PM _unreal_: super hot or worm enough that you CAN hold them
05:04 PM NoGodDamnIdea: they are warm-ish
05:04 PM _unreal_: you want BCNC
05:04 PM _unreal_: you can get it to run on linux or windows
05:05 PM _unreal_: your choice
05:05 PM _unreal_: NoGodDamnIdea, do you know how to change grbl settings yet?
05:05 PM NoGodDamnIdea: can you give me an exe, i tried to build that but for some reason fucking python did not want to install pip
05:06 PM NoGodDamnIdea: you mean like $100=something etc?
05:06 PM NoGodDamnIdea: just the speed and bed dimensions and soft limits on/off
05:06 PM _unreal_: waht BCNC is free
05:06 PM _unreal_: er oh heheh
05:06 PM NoGodDamnIdea: it is free but you have to build the exe for it
05:06 PM _unreal_: $100 settings
05:06 PM _unreal_: no you dont
05:07 PM _unreal_: ahh
05:07 PM NoGodDamnIdea: yes you do
05:07 PM _unreal_: https://openbuilds.com/threads/bcnc-for-windows-10.14664/
05:07 PM _unreal_: no you dont
05:07 PM NoGodDamnIdea: well excuse me i went on github
05:08 PM _unreal_: I installed it on my daughters windows computer you also have to install other software JAVA or something I forgot its been a while have to review
05:08 PM _unreal_: https://www.youtube.com/watch?v=zedZmYIpGKM
05:09 PM _unreal_: watch that video
05:10 PM NoGodDamnIdea: alright, will give that another try
05:11 PM NoGodDamnIdea: oh and also fuck the ramps board
05:11 PM NoGodDamnIdea: i will buy the small cnc shield
05:11 PM NoGodDamnIdea: *and* the smoothieboard to make the linuxcnc option
05:11 PM NoGodDamnIdea: because i got really angry with it this week
05:13 PM _unreal_: hehe
05:13 PM _unreal_: if your having issues with grbl. your going to have BIG issues with linux as far as problem solving
05:13 PM _unreal_: just be aware
05:13 PM NoGodDamnIdea: grbl is not the problem, using it for something it was not made, is a problem
05:14 PM NoGodDamnIdea: but I got it working with estl cam
05:14 PM NoGodDamnIdea: even tho it never really did get the coordinates right
05:14 PM _unreal_: you mean the ramps board
05:14 PM NoGodDamnIdea: starting ones that is
05:14 PM NoGodDamnIdea: yes the ramps board
05:14 PM _unreal_: didnt get the coordinates?
05:14 PM _unreal_: ok ahh
05:15 PM _unreal_: what is the motion method? belt? threaded rod
05:15 PM NoGodDamnIdea: threaded rod
05:15 PM _unreal_: what is the TPI turns per inch?
05:16 PM NoGodDamnIdea: by that i mean is that I wanted it to start from home, but it got the Y axis inverted, choosing to invert it from the software did not help at all and it went to the same place
05:16 PM NoGodDamnIdea: TPI? no idea
05:16 PM NoGodDamnIdea: i used the prusa step calculator
05:16 PM NoGodDamnIdea: used default M8 value
05:16 PM _unreal_: well thats number 1 if you want to get the coordinate system working
05:20 PM _unreal_: I'm making magnetic end stops right now for my cnc machine
05:20 PM NoGodDamnIdea: why
05:20 PM _unreal_: putting nice magnets into the ends of head end 8/32 machine screws
05:20 PM _unreal_: they have a nice little reciver cup on the head
05:20 PM _unreal_: that the mag fits in PERFECT
05:21 PM _unreal_: so I'm putting a DOT of hot glue. putting the mag. on it, heating it with my hot air station till it goes soft and the mag seats nicely.
05:21 PM NoGodDamnIdea: i see
05:21 PM _unreal_: then a little heat shrink over that
05:21 PM _unreal_: to ensure its secure
05:21 PM _unreal_: now I can adjust them AND I'm not likely to loose the damn things if they get bumped
05:22 PM _unreal_: not that I'd be likely to loose a high power micro magnet just be being bumped :)(
05:22 PM _unreal_: they are my limit switches for the laser etcher
05:23 PM NoGodDamnIdea: well i got disconnected for no reason
05:24 PM sinned69155 is now known as sinned6915
05:25 PM _unreal_: happens all the time
05:25 PM _unreal_: have you watched that video in full?
05:26 PM _unreal_: the ESTLcam has its own grbl like firmware its not compatable with other gcode senders I dont think?
05:26 PM _unreal_: I could be wrong never played with it
05:26 PM _unreal_: even though I own it. I use it for the gcode generation
05:26 PM _unreal_: and I use it a lot
05:27 PM NoGodDamnIdea: yeah i saw it
05:27 PM _unreal_: when it comes to gcode generation, I use ESTLcam 1, carbide create 2, fusion360 3rd. in that order. and fusion360 PERIOD for any elaborate 3d gcode generation
05:28 PM _unreal_: simple 3d gcode I'll use ESTLcam
05:28 PM NoGodDamnIdea: i wonder if solidwork also works
05:28 PM _unreal_: people use solid works a lot lot of people talk about it in here. I dont use it
05:28 PM _unreal_: never have
05:28 PM _unreal_: I use as I said before designspark.
05:28 PM _unreal_: its totally free JUST as powerful as fusion360 when it comes to raw CAD designing
05:29 PM _unreal_: AND its got a very nice user interface. once you get past the break in
05:29 PM _unreal_: learning how it works
05:32 PM roycroft: if you buy solidworks you can get a free solidcam license, but i don't know the details
05:32 PM roycroft: i bought my copy of solidworks too long ago to qualify for that
05:32 PM roycroft: even though solidcam does work back to my version
05:33 PM roycroft: hopefully i'll have the how to generate gcode for a milling machine problem soon, and i'll have to get it sorted
05:33 PM NoGodDamnIdea: i see
05:34 PM _unreal_: NOW my limits are working FREAKING amazing
05:34 PM _unreal_: its amazing what using 10x more powerful magnets does for ya when using mag limit switches
05:35 PM _unreal_: I noticed though that it does not TRIP as fast as I would like it to
05:35 PM _unreal_: if I feed rate too high it blows past the stop point I want before tripping the mag switch
05:35 PM _unreal_: so CLEARLY going to have to get a soft limits setup
05:36 PM NoGodDamnIdea: so _unreal_ , can you tell me the steps I have to take after I get my cnc shield?
05:36 PM _unreal_: ahh
05:36 PM _unreal_: load a firmware on it first
05:36 PM _unreal_: or latest
05:37 PM _unreal_: install lasergrbl. its a windows software but it has an EASY firmware install feature
05:37 PM NoGodDamnIdea: didnt you say bcnc?
05:37 PM _unreal_: once you have it loaded AND NO issues accessing it.
05:37 PM _unreal_: or BCNC
05:37 PM _unreal_: but I forget it bcnc has a grbl install feature
05:38 PM JT-Shop: what year is your copy of SW?
05:38 PM NoGodDamnIdea: mine?
05:38 PM _unreal_: most recent what ever that is
05:38 PM _unreal_: the auto installs all pull from the GIT HUB
05:38 PM NoGodDamnIdea: lasergrbl?
05:38 PM _unreal_: latest is what ? 1.1h or something like that
05:39 PM _unreal_: 1.1h is the latest firmware
05:39 PM _unreal_: lasergrbl is "" really "" a laser designed GRBL gcode sender
05:40 PM _unreal_: with RASTER and VECTOR laser gcode converter built in
05:40 PM _unreal_: bcnc is the most advanced UI. for gcode sending
05:42 PM _unreal_: NoGodDamnIdea, you need to figure out what the step rate is for your machine
05:42 PM _unreal_: so first you need to know exactly what kind of threaded rod you have
05:42 PM _unreal_: I dont know so I can only guess it likely has an ACME lead screw
05:42 PM _unreal_: I would be suprised if it had a ball bearing based lead screw
05:43 PM _unreal_: it could have threaded rod but not likely. the DRIVE nuts wear out
05:43 PM _unreal_: faster
05:43 PM _unreal_: NoGodDamnIdea, what is the current VALUE setting for $1
05:44 PM JT-Shop: yea my SSR's showed, now I can play with PID on the germination station
05:44 PM NoGodDamnIdea: wait a minute I have pictures of the lead screw
05:44 PM JT-Shop: showed up even
05:44 PM _unreal_: need to know what they are
05:44 PM _unreal_: JT-Shop, nice
05:44 PM _unreal_: what is the web site for your cnc machine?
05:44 PM NoGodDamnIdea: the value for $1 was 0
05:45 PM _unreal_: NoGodDamnIdea, ok then your motors are NOT tuned for power
05:45 PM _unreal_: you want $1 set to 255.. that will keep the motors on all the time so you dont loose position.
05:45 PM _unreal_: anything less then 255 and the motor power turns off
05:46 PM _unreal_: be READY to turn down the POT(s)
05:46 PM _unreal_: counter clock wise
05:46 PM NoGodDamnIdea: hmm maybe this has to do with the fact that i got the $$ when the drivers where not powered on
05:46 PM NoGodDamnIdea: i dont have access to it right now
05:46 PM _unreal_: ?
05:47 PM _unreal_: its not that big
05:47 PM _unreal_: what is the web link to your exact model again
05:47 PM NoGodDamnIdea: mine?
05:47 PM NoGodDamnIdea: stepcraft 420, let me look it up
05:47 PM NoGodDamnIdea: https://i.imgur.com/w61SYbx.png
05:47 PM NoGodDamnIdea: https://i.imgur.com/pb5FaRT.png
05:48 PM NoGodDamnIdea: https://i.imgur.com/6EuLhwu.png
05:48 PM NoGodDamnIdea: they do have bearings at the ends
05:49 PM NoGodDamnIdea: its the old model
05:49 PM NoGodDamnIdea: seems they have a D version
05:49 PM NoGodDamnIdea: http://stepcraft.com.au/index.php?dispatch=products.view&product_id=252
05:49 PM NoGodDamnIdea: but in australia seems they still got the old one
05:50 PM roycroft: ebay sellers can be such lovely folks
05:50 PM _unreal_: thats a ball screw
05:51 PM _unreal_: ok so you have a nice ball screw lead screw
05:51 PM roycroft: i needed an bulkhead air fitting, and found one for a good price on ebay
05:51 PM roycroft: what arrived was not what was described, promised, and pictured in the listing
05:51 PM roycroft: so i asked to return it
05:51 PM roycroft: the seller said "we do not accept returns - our listing states that clearly"
05:51 PM veegee: damn, levers on forklift require about 150kg•cm of torque to actuate. That's wayyyyy outside the capabilities of a hobby RC servo
05:52 PM _unreal_: NoGodDamnIdea, the SPECS link gives you a lot of the data you need
05:52 PM veegee: looks like I'll need to turn to stepper motors with a reduction gear
05:52 PM JT-Shop: clearly the seller needs a bad rating
05:52 PM veegee: roycroft open a dispute
05:52 PM JT-Shop: is there a dispute system on fleabay
05:52 PM veegee: roycroft ebay makes it very very easy
05:52 PM veegee: roycroft I bet my firstborn you'll get your money back
05:52 PM roycroft: i responded that that does not apply when an item is misrepresented
05:52 PM veegee: don't even bother
05:52 PM veegee: just open dispute
05:52 PM JT-Shop: or dispute the charge on your CC
05:53 PM veegee: no, first go through ebay
05:53 PM roycroft: the seller's response was "have you heard of the saying 'beware the buyer'?"
05:53 PM veegee: paypal/ebay side with the buyer
05:53 PM veegee: I've done this a million times
05:53 PM _unreal_: NoGodDamnIdea, your stepper motors are in line with the ballscrews
05:53 PM JT-Shop: what an ass
05:53 PM roycroft: which i assume is a butchery of caveat emptor
05:53 PM roycroft: anyway
05:53 PM roycroft: yes, i'll get my money back
05:53 PM roycroft: i'm not worried about that
05:53 PM roycroft: and i used paypal
05:53 PM NoGodDamnIdea: what do you mean in line _unreal_ ?
05:54 PM NoGodDamnIdea: they are directly connected for the z and x
05:54 PM roycroft: i've actually gotten a double refund once in the past
05:54 PM veegee: I got scammed for $600 last month, first time in my life someone stole from me
05:54 PM JT-Shop: yeah they always side on the buyer
05:54 PM NoGodDamnIdea: y has a belt to drive both of the screws
05:54 PM roycroft: i bought some software that was alleged to be legitimate
05:54 PM veegee: I was tooooo trusting
05:54 PM roycroft: it turned out to be pirated
05:54 PM roycroft: i did not even contact the seller
05:54 PM roycroft: i filed a complaint with ebay and with paypal
05:54 PM _unreal_: NoGodDamnIdea, inline means that the STEPPER motor is coupled directly to the lead screw
05:54 PM roycroft: paypal immediately refunded my money
05:55 PM roycroft: ebay sent a nastygram to the seller
05:55 PM _unreal_: no gears or pullys
05:55 PM roycroft: then the seller refunded my money again
05:55 PM _unreal_: to increase resolution and or torque
05:55 PM roycroft: because the seller is an idiot
05:55 PM roycroft: besides being a criminal
05:56 PM _unreal_: NoGodDamnIdea, so a belt on the Y axis?
05:56 PM roycroft: i have no tolerance for criminal conduct, but i do know that not all criminals are idiots
05:56 PM roycroft: some are just bad people
05:56 PM _unreal_: x and Z are clearly direct drive
05:56 PM _unreal_: Y could be belt
05:56 PM NoGodDamnIdea: _unreal_ a belt that goes to both screws
05:56 PM roycroft: other than the bulkhead issue, things are going well
05:57 PM roycroft: my siphon tubing for the blasting cabinet just arrived, and i did a trial fit on a barbed connector
05:57 PM roycroft: i have the correct size oetiker step clamps for that combination, so i don't have to order any new clamps
05:57 PM _unreal_: NoGodDamnIdea, you need to know how many steps per turn the stepper motors are, you need to know how many teeth are on the pully on the stepper motor. how many are on one of the lead screws. and you need to know the pitch of the ballscrew
05:57 PM _unreal_: with that information you can solve what your step rate is
05:57 PM JT-Shop: I need to put my ball valve and bulkhead fitting in the wall of the blast cabinet... been putting that off for a few years lol
05:57 PM roycroft: once my blasting gun arrives on monday i should have everything i need to finish that project
05:58 PM roycroft: i'm going to tear the top off of it right now
05:58 PM _unreal_: OR you could call the MFG and ask them what is the step rate of the XYZ on this machine, ether in steps per MM or steps per inch
05:58 PM roycroft: i'm going to lower the wire tray that the parts sit on so there is room for bigger parts
05:58 PM veegee: roycroft BUT not everyone agrees on what a "crime" is, from a moral perspective
05:58 PM veegee: this one is clear
05:58 PM roycroft: i picked up the bulkhead i need locally, for more money
05:59 PM veegee: but a lot of times it isn't
05:59 PM roycroft: veegee: violating the golden rule is a moral crime
05:59 PM _unreal_: roycroft, you keep saying bulk head, what kind of a bulkhead?
05:59 PM roycroft: and i'm assuming that this seller is not ferengi
05:59 PM veegee: I know in this case it's very obvious
05:59 PM JT-Shop: I built mine 42" x 42" x 32" hight
05:59 PM JT-Shop: high
05:59 PM roycroft: _unreal_: i need a fitting that goes through a sheet metal panel
05:59 PM NoGodDamnIdea: _unreal_, imma just email them
05:59 PM roycroft: to pass a 1/4" air line through
06:00 PM roycroft: it's essentially a 1/2" to 1/4: brass bushing with a lock nut
06:00 PM JT-Shop: I need to add a blow off gun inside the cabinet to clean the glass off
06:00 PM _unreal_: NoGodDamnIdea, so step rates are calculated by all of the working numbers of each axis
06:00 PM _unreal_: so
06:00 PM roycroft: i'm doing that, jt-shop - i just bought a 1/4" brass tee today to attach to the bulkhead fitting
06:00 PM veegee: you could have machined that on a lathe
06:00 PM roycroft: i could have
06:01 PM roycroft: it would have cost more than $20 worth of my time to make it
06:01 PM _unreal_: steps per rotation of the motor. in WHOLE steps, what the micro stepping rate is set to if set. what the pully/gear reduction is IF any, and the lead screw in your case because your machine is not a direct belt drive but rather had lead screws
06:01 PM roycroft: i'm also getting rid of the siphon tube on my blast cabinet
06:01 PM _unreal_: what the PITCH of it is. that will give you your step rate
06:02 PM _unreal_: NoGodDamnIdea, I would suggest half stepping.
06:02 PM * JT-Shop wanders up to the deck to warm up the Traeger for some burgers... going to be a cold night tonight
06:02 PM roycroft: i have to work this weekend :(
06:02 PM Tom_L: nice day here but chilly
06:02 PM roycroft: but i have monday off, and my jointer will be delivered then
06:02 PM JT-Shop: my blast cabinet has a funnel bottom
06:02 PM roycroft: so that all works out
06:02 PM _unreal_: or 1/4 stepping dont got 1/8 or 1/16th for micro stepping. sure you get more "resolution" but you also loose power
06:03 PM _unreal_: a lot of holding torque is lost the higher you go in micro steps.
06:03 PM roycroft: i'm going to siphon out of the bottom of the cabinet
06:03 PM JT-Shop: https://gnipsel.com/images/blast-cabinet/
06:03 PM NoGodDamnIdea: but do i even need torque for this one?
06:03 PM XXCoder: roycroft: that sucks, some sellers is just bad
06:03 PM roycroft: i hung a 1-1'4" tee below the dump gate, with a plug in the bottom and a venturi tube on the side
06:03 PM _unreal_: NoGodDamnIdea, ahhhh IF YOU WANT the cnc machine to be useful then YES you want torque
06:04 PM JT-Shop: https://gnipsel.com/images/blast-cabinet/Blast%20Cabinet%2046.JPG
06:04 PM _unreal_: stepper motor based milling cnc machine are not super high speed
06:04 PM _unreal_: they are slow and strong
06:04 PM roycroft: i decided to go with a trigger gun, not a foot pedal gun
06:04 PM roycroft: i got one from skatt
06:05 PM _unreal_: servo driven cnc machines are very fast moving
06:05 PM JT-Shop: I just open the ball valve and go
06:05 PM roycroft: but yeah, my siphon is like yours, jt-shop, except i made it out of plumbing fittings
06:05 PM _unreal_: NoGodDamnIdea, you can get a stepper to go very fast BUT NOT under load
06:05 PM JT-Shop: that works too
06:05 PM roycroft: it will be much better than the old siphon tube, which i've already replaced 4-5 times
06:05 PM JT-Shop: gee it looks so clean in that photo lol
06:06 PM roycroft: anyway, it's time for some dismantling
06:06 PM NoGodDamnIdea: _unreal_, alright
06:06 PM JT-Shop: the bleed valve at the bottom is important to get the right amount of media
06:06 PM roycroft: i've added one
06:07 PM roycroft: the venturi tube is a 1-1/4" black steel pipe
06:07 PM XXCoder: didnt know about that bleed valve thing. nice
06:07 PM roycroft: i drilled and tapped for 1/2"-14 npt in the middle of it
06:07 PM _unreal_: NoGodDamnIdea, I dont know much about that cnc but you'll prob get upto 400"/MIN feed rate on rapids. rapids means not cutting but picking up the spindle and moving over to the next tooling area quickly
06:07 PM roycroft: and added a faucet shutoff valve to it
06:07 PM roycroft: i can adjust the bleeder air with that
06:08 PM roycroft: if you don't have the bleeder valve you'll get chunks of low-pressure media coming out the gun, followed by a blast of air, followed by another chunk
06:08 PM roycroft: it will be "stuttery"
06:08 PM roycroft: and will not do any work for you at all
06:11 PM CaptHindsight: JT-Shop: your shop is so bright and clean that I'd never think that were wild animals just right out that door
06:15 PM NoGodDamnIdea: sent them the email _unreal_
06:15 PM _unreal_: cool
06:16 PM _unreal_: NoGodDamnIdea, chances are x and z will have the same steps per "measurement" and Y will be different
06:16 PM _unreal_: do you have access to see the BELT drive on the Y axis?
06:17 PM NoGodDamnIdea: yeah
06:17 PM NoGodDamnIdea: but now now obviously
06:18 PM NoGodDamnIdea: will see if i have time tomorrow to go at the shop
06:20 PM _unreal_: just found out why one of my limits was not working well
06:20 PM _unreal_: freaking CRIMP was no good on one of the leads of the mag limit switch
06:20 PM _unreal_: sigh
06:24 PM NoGodDamnIdea: https://www.youtube.com/watch?v=WfRF8FE9Qgc
06:24 PM NoGodDamnIdea: this is pretty neat
06:27 PM _unreal_: My home machine could do that easy IF my 4th axis worked.
06:27 PM _unreal_: some wierd issue going on and I have NO desire to solve it.
06:28 PM Tom_L: driver?
06:28 PM _unreal_: hobbycnc stepper driver board
06:29 PM _unreal_: dont know what the issue is
06:29 PM _unreal_: I think its on the driver board its self
06:29 PM _unreal_: I have all the parts to fix it I just dont want to
06:29 PM _unreal_: my machine works dont have to have the 4th axis
06:29 PM _unreal_: would just be nice to have
06:29 PM _unreal_: I do have an A axis
06:29 PM _unreal_: that I can use :(
06:29 PM _unreal_: oh well
06:30 PM _unreal_: so chances are VERY very very good that limit switch was just fine. and I just killed it because it had a bad crimp on it
06:30 PM _unreal_: sigh
06:31 PM NoGodDamnIdea: _unreal_ you seem like a crafty guy, I have some silicone that is going to expire
06:31 PM NoGodDamnIdea: what could I do with it?
06:33 PM _unreal_: get cocky with it
06:35 PM NoGodDamnIdea: lol
06:35 PM XXCoder: make silicone mold
06:36 PM NoGodDamnIdea: yes but of what
06:37 PM infornography: penis
06:37 PM XXCoder: dilio
06:38 PM _unreal_: no way the other crimp on the other side of this bad relay just fell off
06:38 PM _unreal_: was re-using the wires
06:39 PM CaptHindsight: 32 core EPYC compiles a kernel in 52 seconds with hyperthreading off
06:39 PM NoGodDamnIdea: haha
06:40 PM XXCoder: hm
06:40 PM XXCoder: you know those racquets?
06:40 PM XXCoder: whats vertical ones called?
06:40 PM XXCoder: not like lever but like knob
06:41 PM XXCoder: like https://www.amazon.com/Powerbuilt-941248-Thumb-Ratchet-Bits/dp/B073WH46Q7/ interesting
06:55 PM _unreal_: I have 2 mag limit switches left
06:55 PM _unreal_: so far 3 have been NFG
06:55 PM _unreal_: what total amazon china SHIT
07:01 PM andypugh: There is some junk on there. But it does arrive quickly. I tend to buy stuff from Amazon as a gamble when I fancy doing something with them tomorrow.
07:02 PM _unreal_: that is sooooooooooooooooo freaky
07:02 PM _unreal_: https://www.youtube.com/watch?v=9KMptw7ZgVI
07:04 PM _unreal_: MINI version https://www.youtube.com/watch?v=0LWx_Y9DKPc
07:04 PM Tom_L: andypugh, you ever get anywhere with that harmonic drive?
07:06 PM andypugh: _unreal_: That’s a lot like the NIST “RoboCrane” which LinuxCNC was originally invented to control.
07:07 PM andypugh: Tom_L: No, not really. I started to make a spark eroder, and that’s still on my project list.
07:17 PM robotustra: I saw one guy vidoe on EDM
07:18 PM robotustra: he sells HV unit for EDM
07:18 PM robotustra: andypugh, is it you?
07:19 PM robotustra: https://baxedm.com/
07:22 PM andypugh: No, I am still at the “barely understand the theory” stage of the project.
07:25 PM robotustra: theory is rather simple, the practical build is hard, especially at high voltage part
07:25 PM roycroft: well, i'm not having fun any more, so i quit for the day
07:25 PM robotustra: but this guy designed and sell HV module for DIY EDMs
07:26 PM roycroft: i'm separating the blasting cabinet part from the media funnel part, and after 20+ years of using the blasting cabinet, the bold heads are all worn down such that i can't get a grip with a screwgun to spin them out
07:27 PM roycroft: not to mention that it's really messy, and very hard to reach them in the first place
07:27 PM roycroft: i got about 2/3 of them out, but i can't even begin on the rest - i may have to drill them out
07:27 PM roycroft: and i need to find another fastening method that is not prone to this problem
07:28 PM roycroft: which may be as simple as putting a dab of silicone sealant over each screw head after i torque it down, which i should be able to reasily remove if i ever need to service the unit again
07:28 PM _unreal_: wtf
07:28 PM _unreal_: now I have no more working limit switches
07:28 PM _unreal_: got to order more
07:29 PM _unreal_: for the life of me I cant get the ONE x- to work
07:29 PM _unreal_: the fail closed
07:29 PM _unreal_: no idea why
07:29 PM roycroft: you have to believe in them
07:29 PM roycroft: if you don't believe in limits then your limit switches will not work for you
07:33 PM roycroft: hmm, maybe i can just cut the nuts off the last few bolts with a cutoff tool
07:34 PM roycroft: that would be quick and easy, i think
07:34 PM andypugh: robotustra: You seem to be assuming that the goal of my project to make an EDM is to have an EDM at the end. The goal of thr project is actually to make an EDM. :-)
07:34 PM roycroft: i am a volkswagen driver - i can relate to that, andypugh
07:35 PM roycroft: the journey can be as important as the destination
07:35 PM roycroft: or even moreso
07:37 PM robotustra: that's why I didn't install limit switches on my router - I don't believe in them
07:37 PM roycroft: if you do not believe in them they will not work
07:38 PM robotustra: I think you are mixing with religion a bit :)
07:38 PM robotustra: or with placebo
07:39 PM _unreal_: oooh
07:39 PM _unreal_: I fixed one
07:40 PM _unreal_: slamed it at the ground and it reset the reed
07:40 PM _unreal_: its odd
07:40 PM _unreal_: ever one of them so far that has failed failed when I was using the hot glue
07:40 PM _unreal_: and we are talking "kid" level hobby craft hot glue gun
07:41 PM _unreal_: just to lock it down into place and protect it
07:41 PM unterhaus: modem couldn't stand being connected for 24 hours and so it totally crapped out
07:45 PM NoGodDamnIdea: night yall
07:55 PM _unreal_: now I understand why these fuckers are failing
07:55 PM _unreal_: they have a PURE plastic body
07:57 PM _unreal_: well now I know why they were failing
07:57 PM _unreal_: just ordered a set with glass tubes
07:58 PM _unreal_: cheaper to go figure
07:58 PM _unreal_: so now that I wasted time for nothing
08:59 PM roycroft: as predicted, iceland is blowing up right now
09:02 PM XXCoder: whats happening there?
09:03 PM roycroft: volcano eruptime
09:03 PM roycroft: eruption
09:03 PM roycroft: after weeks of earthquakes
09:05 PM XXCoder: wow
09:06 PM roycroft: this one is close to ryekjavik
09:06 PM roycroft: usually they are more inland
09:13 PM Bleepshop: CaptHindsight: The gearing on the table works out to 800-1000 steps/inch. I still need to measure the rack pitch, count the teeth on the pinion and then work out if this is a 4:1 or 5:1 reduction between the stepper and the rack drive shaft.
09:42 PM CaptHindsight: Bleepshop: 16666 steps/sec with 1000 steps/inch = 16.666 inches per second rapids
09:42 PM CaptHindsight: no too shabby
09:43 PM CaptHindsight: at 800 steps/inch = 20.8325 in/sec
09:51 PM * Bleepshop grabs a Sharpie and a ruler.
09:57 PM Bleepshop: CaptHindsight: OK. Measured the X/Y drives. Standard 200steps/rev steppers feeding 4:1 belt drive feeding rack and pinion that roughs out to 1-7/8" per revolution of the pinion.
10:00 PM Bleepshop: And I'm back to the Asus K8V SE Deluxe board. Looking for the bios updates and tools now.
10:00 PM -!- #linuxcnc mode set to +v by ChanServ
10:12 PM Bleepshop: Preempt RT seems happy enough since the jitter is down to 25K ns.
10:13 PM XXCoder: mnot bad
10:23 PM * Bleepshop has a quandry...
10:26 PM Bleepshop: Do I use the cheap DB25-1205 board I was going to use or the Sound Logic PC-2-route M-2 Rev 1.8A I just realized was originally driving this and is still probably functional.
10:34 PM CaptHindsight: 0.00234 in / step
10:36 PM CaptHindsight: 800 steps per 1 7/8 in
10:36 PM CaptHindsight: 39 in / sec rapids
10:38 PM Bleepshop: Is there a 'make the lights blink' test for controllers ?
10:38 PM Tom_L: you sure?
10:38 PM Tom_L: not min?
10:40 PM * Bleepshop pulled the cabling to the dead power supplies, rerouted the E-Stop circuit and now has 3 pairs of LEDs lit with each pair coresponding to a drive axis.
10:42 PM CaptHindsight: 16666 steps/sec
10:43 PM Tom_L: 2339 in/min
10:43 PM Bleepshop: The Devil you say. ;D
10:44 PM Bleepshop: Tom_L: OK. So I need to limit my moves to a max of ~2 seconds for a 48"x48" table? LOL
10:46 PM Bleepshop: I'm sure the table will survive with as beefy as it's built but I'd be worried about scaring the termites in the shop, If they quit holding hands I'm gonna be screwed. LOL
10:49 PM XXCoder: rapid for that size is pretty fast heh
10:50 PM CaptHindsight: controlled accel and decel will slow that down
10:50 PM Tom_L: likely wouldn't reach peak in that distance
10:52 PM CaptHindsight: Bleepshop: if you don't loose too much torque you could step at 1600/rev, plus you are geared down 4:1
10:52 PM CaptHindsight: and be closer to 0.001" per step