#linuxcnc Logs

Apr 28 2023

01:31 AM Deejay: moin
01:58 AM travis_farmer[m]: Morning ☕️
03:03 AM Bing[m]: morning
04:32 AM Tom_L: morning
05:19 AM JT-Cave: morning
05:49 AM Bushman: morning
05:50 AM travis_farmer[m]: woke up to 32F, but it is supposed to climb to a balmy 66F+ later today :-)
05:56 AM Bushman: i was googling around for some insight on the inner workings of my pendant and i've came acros a post that links to this code :
05:56 AM Bushman: https://github.com/LinuxCNC/linuxcnc/blob/ef7360b361bf09d14809f1f673fba094865ec6cd/src/hal/user_comps/xhc-whb04b-6/usb.h#L64
05:56 AM Bushman: it would seem that my pendant should have 4 modes and not 3
05:57 AM Bushman: still, ignoring the last one, i have no idea how to go back to MPG mode once you select any other
05:58 AM Bushman: there's no "MPG" button. only "Continous" and "Step" buttons are available
06:01 AM travis_farmer[m]: it is my basic understanding that "continuous" is MPG
06:13 AM Bushman: it would be mine too if not the fact that the pndant boots in MPG mode and only changes to CON after a button press
06:13 AM Bushman: while in MPG mode the MPG wheel controlls feed override
06:13 AM Bushman: but only 1% at a time and it's also slow.
06:14 AM Bushman: the actual feed override/step size knob no longer does what it did in the past
06:14 AM travis_farmer[m]: Hmmm, never paid that much attention i guess. i usually just use Step mode most of the time.
06:15 AM Bushman: me too, when settin up
06:16 AM Bushman: but later when i run the program i always used the FO knob to ease into the cutting in case something was set incorrectly feed-wise
06:16 AM travis_farmer[m]: maybe it needs to be in Cont mode with Feed selected on the step-size knob...
06:17 AM Bushman: also i use tiny engraving bits and often time you need to slow down quick or break the bit
06:17 AM Bushman: travis_farmer[m]: that's how it WAS
06:17 AM Bushman: it no longer is
06:18 AM travis_farmer[m]: ...odd. like i said, i guess i never paid that much attention...
06:18 AM Bushman: i had to reinstall everythig so my old setup is no longer working (PC broke and OS is unstable after migrating)
06:19 AM Bushman: i expected everything to work the same but there must have been some major changes to the driver
06:19 AM travis_farmer[m]: either that or a change in how HAL reads it
06:19 AM Bushman: especially that i can't see any mention about this feed override knob in old custom.hal :(
06:20 AM travis_farmer[m]: what version of LinuxCNC are you running?
06:21 AM Bushman: 2.8.4 right now
06:21 AM Bushman: used to be 2.7 before
06:21 AM Bushman: and there was some siddeling to install the pendant in the past.
06:21 AM Bushman: now it's much easier. works out of the box
06:21 AM Bushman: just need some config hal file
06:21 AM Bushman: *fiddeling
06:24 AM travis_farmer[m]: i run lcnc 2.9 pre1, but here is my hal file for the pendant, if it is of some help... https://github.com/travis-farmer/linuxcnc/blob/master/configs/my_LinuxCNC_router/xhc-whb04b-6.hal
06:25 AM Bushman: i've seen your file when googling :) thanks for posting
06:26 AM Bushman: but does your knob select the FO?
06:26 AM travis_farmer[m]: ... never tried it, honestly
06:26 AM Bushman: fair enough :)
06:27 AM travis_farmer[m]: i can try later today, when it warms up :)
06:46 AM roscogamer[m]: Question does the mesa 7i96 support modbus for the spindle
06:47 AM roscogamer[m]: I can't seem to find anything remotely related to it in the pncconfig
06:58 AM miss0r: I'm doing a conversion from a v-belt to a poly-v belt. Would any of you guys know what width/how much wider/marrower a poly-v belt has to be to be able to transfer the same amount of energy at a given v-belt?
07:12 AM JT-Cave: should be some conversion thing on the web I'd think
07:13 AM knowible[m]: h
07:13 AM miss0r: JT-Cave: I haven't had much luck finding it
07:14 AM knowible[m]: 😃
07:16 AM Bushman: out of boredom i've opened my pendant...
07:16 AM Bushman: turns out there's lots of interesting things on the PCB
07:16 AM Bushman: for example there's a conector named MPG_EN and E-STOP
07:16 AM Bushman: :D
07:17 AM Bushman: also, the axis selector knob outputs are all populated
07:18 AM Bushman: now i wanna try if the firmware is the same for 4 and 6 axis versions :D
07:18 AM JT-Cave: miss0r, I've not had any luck finding anything either
07:18 AM miss0r: damnit
07:18 AM miss0r: I'll just go ahead and figure that its about the same then :)
07:19 AM Tom_L: miss0r, no but i went with a 15mm width on my 1.2kw spindle
07:19 AM miss0r: Tom_L: This is for a waterpump and a generator on my old landrover
07:19 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Spindle/Motor_Mounted2.jpg
07:20 AM Tom_L: oh well nevermind then :)
07:20 AM miss0r: 780watt ish for the generator
07:20 AM miss0r: and who knows about the waterpump
07:20 AM Tom_L: ^^ should certainly work for that
07:20 AM Tom_L: until the pump siezes :)
07:20 AM miss0r: well.. It doesn't matter what belt you use then :)
07:21 AM miss0r: well... it does. But i'd rather have it slip and tear the waterpump housing clean off the engine block :D
07:22 AM miss0r: Tom_L: What do you figure: Is the poly-v belt better at transferring power at the same width as a v-belt or worse?
07:23 AM JT-Cave: I "think" the poly v is better
07:23 AM miss0r: okay. I'll just run with it and make some pulleys the same width as the original v-belt one then
07:25 AM JT-Cave: https://www.hutchinsontransmission.com/products-solutions/industry/v-belt
07:26 AM miss0r: JT-Cave: excellent
08:06 AM Tom_L: pretty sure poly is much better and the GT2 GT3 are supposed to be the best profile so far
08:07 AM Tom_L: over the squareish ones
08:07 AM Tom_L: the very best is the VVVV poly but i couldn't find any small enough for my app
08:58 AM travis_farmer[m]: Bushman: i managed to get out to my shop and test my pendant. when the selector knob is on "Lead", it operates the spindle override slider, though the feed+ and feed- buttons do operate the feed slider.
09:12 AM Lcvette[m]: polyv ios where its at
09:13 AM Lcvette[m]: https://www.youtube.com/watch?v=vsYX91R7YPY
09:14 AM roguish[m]: poly vee belts are far better that standard v belts, for stuff we all do..... virtually no slippage relative to standard vee belts.
09:14 AM Lcvette[m]: 6k rpm smooth as silk
09:15 AM Lcvette[m]: and quiet, that realtime voice recording in front of the running spindle
09:15 AM Lcvette[m]: * quiet, that's realtime
09:16 AM Tom_L: i'd planned on using them but couldn't find any short enough
09:17 AM Tom_L: & pulleys etc
09:18 AM Lcvette[m]: Tom_L: what length do you need?
09:18 AM Tom_L: i don't now :)
09:19 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Spindle/Motor_Mounted2.jpg
09:19 AM Tom_L: would have been one
09:19 AM Lcvette[m]: 😲
09:19 AM Tom_L: is that 150mm or teeth? i forget
09:19 AM Tom_L: likely teeth
09:20 AM roguish[m]: Tom_L: that doesn't look too bad. pitch is a bit big for my taste.
09:20 AM Tom_L: x 5mm
09:20 AM Lcvette[m]: looks like it would be loud
09:20 AM Tom_L: gt2
09:20 AM Lcvette[m]: if it went fast
09:20 AM Tom_L: i was afraid 2 or 3mm pitch might strip if a tool went whacky
09:20 AM Tom_L: max rpm is 5500 anyway
09:21 AM ZincBoy[CAON][m]: Gates has calculators and tables to design drives and size the belt to the power in the system.
09:22 AM Tom_L: yeah i'm sure... i just eyeballed it
09:22 AM Tom_L: works good though
09:23 AM Tom_L: certainly better than the stock sherline belt
09:23 AM roguish[m]: ZincBoy[CA, ON]: yeah, but they make ya login and have an account and all that shit....
09:23 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/new_pulleys/old_pulley1.jpg
09:23 AM Tom_L: roguish[m], they just wanna pester ya after the fact
09:24 AM Tom_L: anything was a step in the right direction compared to ^^ that
09:24 AM ZincBoy[CAON][m]: I just use a throwaway account for that stuff.
09:25 AM Tom_L: you look close you can see that one is already chunking out
11:30 AM boozeman4562[m]: I have solved my limit switch problem. That common input wire was no connection. Lessons to learned: Buy grimping tool and use grimped wire ends.
11:31 AM roycroft: buy a quality crimping tool
11:32 AM roycroft: if you get a $9.95 one from china you'll get the results you should expect
12:52 PM Unterhaus__: I have had pretty good luck with the $20 chinese crimpers. I'm not rich enough to buy the official ones for hundreds of $
01:33 PM JT-Shop: hmm the new epoxy won't get hard...
01:33 PM TurBoss: ouch
01:36 PM JT-Shop: good thing I only tried to fill a couple of small catches in the bowl
01:39 PM ZincBoy[CAON][m]: Yes but there is a big difference between the bottom of the barrel crimpers and the slightly more expensive imports. The quality import crimpers are worth the extra $10. The official crimpers are hugely overpriced for home/hobby needs.
01:49 PM Tom_L: more cnc pron: http://tom-itx.no-ip.biz:81/~webpage/cnc/cincinnati/Cincinnati_6.jpg
01:49 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/cincinnati/Cincinnati_7.jpg
01:49 PM Tom_L: need a spare vise?
02:07 PM Unterhaus__: touching off those vises must be fun
02:19 PM roycroft: can i trade my vices for vises?
02:20 PM roycroft: and what zincboy said
02:20 PM roycroft: the $20-$50 crimp tools generally do ok
02:21 PM roycroft: the $350 ones are for production environments where you do hundreds or thousands of crimps per day
02:21 PM roycroft: they are for small firms that can't cost justify an automatic crimping machine
02:21 PM roycroft: or for field work
02:22 PM roycroft: when i was doing telcom work i had to use the good crimp tools, or my work would be rejected
02:23 PM roycroft: the good ones emboss the die that was used onto the crimp lug, so inspectors can see that the crimp was done with the proper die
02:42 PM Scopeuk: Also any industry where you have certification requirements and you need to be able to prove out your tooling and its validity for it's use case
02:44 PM Unterhaus__: that's interesting about embossing the crimp. I have some pro level crimpers that I got off ebay, well used of course
02:50 PM roycroft: i think we all know folks who grab whatever tool is closest and somewhat resembles what they need and try to force it to work
02:50 PM roycroft: that's why the embossed crimps are needed
02:50 PM roycroft: the embossing both ensures that the proper die was used and that the proper pressure was applied while crimping
02:51 PM roycroft: and that the proper lug was used
02:52 PM roycroft: there is also an inspection window at the end of the crimp part of the lug so that it can be proven that the wire was stripped to the proper length and fully-inserted into the lug
02:53 PM roycroft: i worked for a clec, and we were collocated in the ilec central offices
02:54 PM roycroft: believe me, our inspections were rigorous, because it was the ilec's inspectors doing it, and they did not want us in their building
03:28 PM Lcvette[m]: I am about to put a small project together for a mini mill build for my brother as a gift for helping me out while I was down with covid, he fell in love with cnc, something i have hoped would happen for years now..
03:29 PM Lcvette[m]: I was wondering if anyone could recommend a proven mini pc to work along with a 7i96s on deb12 bookworm that won't have any issues
03:42 PM Unterhaus__: it's such a pain to keep up with computers that work
03:42 PM Unterhaus__: I have a small dell optiplex tower that has good latency, but they keep changing things so who knows?
03:43 PM Unterhaus__: optiplex 7010
03:44 PM Unterhaus__: there are a lot of them on ebay because a couple of companies buy them where I do, penn state surplus
04:21 PM Tom_L: iirc roguish[m] maybe? posted some pulls that worked good
04:22 PM Lcvette[m]: Unterhaus__: thanks, I have an optiplex 9020? Cant read the label looks smudged
04:22 PM * Lcvette[m] uploaded an image: (110KiB) < https://libera.ems.host/_matrix/media/v3/download/matrix.org/PLBCgvLCbHTtEegWJQMOZYzD/IMG_20230428_172023337.jpg >
04:22 PM * Lcvette[m] uploaded an image: (157KiB) < https://libera.ems.host/_matrix/media/v3/download/matrix.org/xGdBHRvJEnzdPAfPUxwDfQeC/IMG_20230428_172113422_HDR.jpg >
04:22 PM Unterhaus__: there is a service tag number on it you can look up and it will tell you
04:22 PM Lcvette[m]: Its one of my test PC 's for dev, its a core i7
04:22 PM Lcvette[m]: Older model
04:23 PM Unterhaus__: mine is about 4 years old
04:23 PM Lcvette[m]: But it suffered from latency on the newer kernel, even with all the tuning done to it
04:23 PM Unterhaus__: like I said, they change things a lot. I have some about the same age that don't do well
04:24 PM Unterhaus__: one of them obviously has a smi problem because there is a long delay periodically
04:24 PM Unterhaus__: just barely usable for a mesa card
04:26 PM Unterhaus__: did you find the sticker with the service tag on it?
04:26 PM Unterhaus__: not sure it's worth it to me to go to the store with a usb key with lcnc on it to test
04:27 PM Unterhaus__: I guess if it doesn't work I can sell them on ebay
04:28 PM Tom_L: you could i suppose.. they might wonder..
04:46 PM Unterhaus__: nothing wrong with those computers, they just don't work well with lcnc
04:47 PM Unterhaus__: the problem I see with the companies that buy them to resell is they don't meet the requirements for win11
04:52 PM Unterhaus__: intel recently announced they were going to fix a problem with their ethernet drivers on linux
04:52 PM Unterhaus__: but searching for that brings up a large number of hits over time
04:53 PM roycroft: this time for sure!
04:53 PM roycroft: my dust collector filter has just arrived
04:54 PM roycroft: i expect it to be the single biggest improvement in the system since i started refurbishing it
04:54 PM * roycroft will be able to install it in a few minutes
06:26 PM Unterhaus__: my wife got invited to an event for a politician and was surprised when I told her they were going to ask for money
06:36 PM Unterhaus__: They did
06:39 PM Tom_L: hah
07:19 PM roycroft: well that was a bigger win than i expected, and i am very happy
07:19 PM roycroft: i installed the new filter on the dust collector
07:19 PM roycroft: i had two issues that i hoped it would help:
07:20 PM roycroft: 1. my tablesaw would slowly fill with sawdust - some would be extracted, but not all
07:20 PM roycroft: 2. sometimes when running wide boards through the thicknesser the cyclone would clog and all the chips would go to the main collector bag
07:21 PM roycroft: when i turned it on after the new filter the entire tablesaw cabinet emptied out over the course of a few minutes, and i ran a 10" wide piece of ash through the thicknesser and it did not clog
07:21 PM roycroft: i was hoping for an incremental improvement but got almost a complete win
07:31 PM Unterhaus__: I was real happy with my filter. But since I fixed the cyclone design at the same time I can't fully credit the filter
07:34 PM XXCoder: roy nice
08:14 PM roycroft: i had this type before:
08:15 PM roycroft: https://www.grizzly.com/products/shop-fox-2.5-micron-upper-filter-bag-with-logo/d4572
08:15 PM roycroft: i replaced it with this:
08:15 PM roycroft: https://wynnenv.com/products-page/woodworking-filters/35c222nano-cartridge-kit/
08:15 PM roycroft: the bag was not in bad shape
08:15 PM roycroft: but the cartridge filter has orders of magnitude more surface area, and the air flow is incredibly increased with it
08:16 PM roycroft: if i had the room i'd get another one and stack them to double the surface area
08:17 PM roycroft: but i'd have to do some serious remodeling of the dust collection system to do that, and i'm not sure i'd see enough of an additional gain to be worth it
08:17 PM roycroft: if what i have sucks up everything i throw at it then i'm fine with it
08:18 PM Tom_L: little bit of price differential there
08:18 PM roycroft: yeah
08:18 PM roycroft: but well worth it
08:18 PM Tom_L: my bud had a debur table that had the whole base surrounded with that white filter cloth
08:19 PM Tom_L: downdraft table
08:19 PM roycroft: if you have a powerful enough fan you can move enough air through that 2.5µ filter bag to get good extraction
08:20 PM roycroft: but adding that cartridge was a lot cheaper than upgrading the dust extractor
08:20 PM roycroft: mine is 1.5hp and i'd probably need to up to 3hp to get the gain i got with that new filter
08:21 PM roycroft: https://www.grizzly.com/products/shop-fox-3-hp-dust-collector/w1687
08:21 PM roycroft: that's over $1500 shippped
08:22 PM Tom_L: squirrel cage fan?
08:22 PM roycroft: and with those bags, you have to take them off, turn them inside out, and shake/beat/blast them to clean them
08:23 PM roycroft: with the cartridge you leave it in place and blast it from the outside with air at 60psi to clean it
08:23 PM roycroft: yes, a squirrel cage fan
08:23 PM Tom_L: of sorts.. i see it now
08:24 PM roycroft: yeah, "of sorts"
08:24 PM roycroft: and all your chips and dust get sucked through the fain
08:24 PM roycroft: fan
08:24 PM Tom_L: probably beats the hell outta it too
08:24 PM roycroft: mine is similar to this:
08:25 PM roycroft: https://www.grizzly.com/products/grizzly-1-1-2-hp-portable-dust-collector/g1028z2
08:26 PM Tom_L: balanced?
08:26 PM roycroft: i put an oneida cyclone separator in front of it
08:26 PM roycroft: https://www.oneida-air.com/dust-deputy/dust-collector-kits/super-dust-deputy-6-inch-cyclone-separator
08:26 PM roycroft: that one, and it sits on top of a 55 gallon drum
08:27 PM Tom_L: the bottom of the drum should have a conveyor that goes to a ram to make wood pellets
08:27 PM roycroft: in theory i'll never have to empty the lower bag on the main unit with the cyclone separator, but i've been emptying it regularly, since the cyclone would clog so easily
08:27 PM roycroft: i give it away as mulch
08:28 PM Tom_L: or a screw
08:28 PM Tom_L: draws ants in
08:28 PM Tom_L: or termites
08:28 PM roycroft: i line the drum with heavy-duty garbage bags, and when it fills i pull the bag and bring it to a friend, or put it on cl if my friend doesn't need any mulch at the moment
08:28 PM roycroft: i never have trouble getting rid of it
08:29 PM Tom_L: then make a rocket stove and burn the pellets :)
08:29 PM roycroft: and the nice thing is that it takes me five minutes to swap out the bag in the 55 gallon drum
08:29 PM roycroft: it takes me a couple hours to clean out the bag on the extractor
08:29 PM roycroft: the former is also virtually dust-free
08:30 PM roycroft: the latter covers the entire lean-to shed where the collector lives with dust, and covers me with dust as well
08:30 PM roycroft: i really hate cleaning out that bag
08:30 PM roycroft: and now, hopefully, i'll never have to do it again
08:31 PM roycroft: i was going to work on my laser enclosure some more today, but then the filter arrived
08:32 PM roycroft: and i have to use the tablesaw for the next part of the laser enclosure build, so i decided to get my extraction improved before doing anything more with the tablesaw
09:05 PM roycroft: we set a record high temperature for the day today - 31
09:06 PM roycroft: we went from 10 degrees below average to a record high in 2 days
09:08 PM * roycroft wonders if oregon turned into colorado
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