#linuxcnc Logs

Aug 12 2020

#linuxcnc Calendar

01:03 AM Loetmichel: mornin'. Meh, not even fully awake and sweating profoundly again... atm the weather is really overdoing it!
01:21 AM CaptHindsight: space suit time already over
01:31 AM skec: Hi all
01:31 AM CaptHindsight: skec: howdy
01:33 AM skec: I would like to ask you a question. I want to control small stepper motor using L298N using linuxcnc and parallel port. Because I use L298N, I must configure linuxcnc NOT in step/ dir configuration, because I have 4 wires (2 for each coil). I do remember seeing such configuration on youtube, but unfortunately I cannot find that video anymore :( I
01:33 AM skec: would appreciate any help.
01:35 AM CaptHindsight: https://forum.linuxcnc.org/forum/27-driver-boards/29055-simple-and-cheap-stepper-motor-drives-for-diy-ers
01:37 AM CaptHindsight: https://www.forum.linuxcnc.org/24-hal-components/28489-pwm-h-bridge-signal
01:39 AM CaptHindsight: https://forum.linuxcnc.org/16-stepconf-wizard/5654-configuring-a-l297-board-reprap-stepper-v1-2
01:39 AM skec: Thanks!
01:41 AM CaptHindsight: skec: since the L298 does not have any current limiting you can get into high current issues when stopping fast or reversing
01:42 AM CaptHindsight: you can get much better stepper drives for a few $
01:43 AM CaptHindsight: skec: what is the stepper motor going to move?
01:43 AM skec: Its just cd rom stepper motor moving a pen
01:44 AM sensille: linuxcnc can directly drive a full bridge? including sensing?
01:44 AM skec: I just want to get into linuxcnc
01:45 AM skec: as I mentioned, I do recall a youtube video where it was shown how to connect 4 wires into parallel port and the choose the right configuration in linuxcnc, but I lost that link
01:46 AM CaptHindsight: https://www.youtube.com/watch?v=_rPLshshZW4
01:47 AM * Loetmichel just started a pot of coffee.. still running on auto :-)
01:47 AM CaptHindsight: https://www.youtube.com/watch?v=gjkFJK_Hq2E
01:47 AM skec: from L298N you are left with 4 wires going into parallel port pins. You then can step the motor by right sequence (e.g 1, 3, 2, 4)
01:49 AM CaptHindsight: skec: https://www.amazon.com/TB6600-Stepper-Driver-Controller-tb6600/dp/B07S64MBTR/ref=asc_df_B07S64MBTR/
01:49 AM CaptHindsight: ^^ price is lower than a L298
01:50 AM skec: It was not using arduino,,
01:50 AM CaptHindsight: can't find a video now myself
01:50 AM skec: yes, I am aware of drivers now, however, its after buying 4 L298 (doh)
01:50 AM sensille: L298N, 1.3 euro incl. shipping
01:51 AM CaptHindsight: tb6600 at least has over current protection
01:51 AM CaptHindsight: they give them away now
01:51 AM CaptHindsight: the L298
01:51 AM skec: fair point, i did not even unpack them...
01:52 AM sensille: A4988 is also around 1 euro, and is at least a full driver
01:53 AM CaptHindsight: https://www.forum.linuxcnc.org/16-stepconf-wizard/26990-l297-controler-and-stepconf
01:53 AM skec: yes guys, thats true. That being said, i was interested if linuxcnc could do the job with 4 wires and not step/ dir configuration
01:53 AM CaptHindsight: skec: it can but with limitations
01:56 AM skec: One limitation i guess is that you can only put 2 of them on parallel port
01:56 AM skec: but thats ok, i have extension card for parallel port
01:58 AM sensille: the other limitation is that you can move only very slowly i guess
01:58 AM sensille: because of the missing current limiting
02:00 AM skec: Hmm... i found something related to OR2
02:06 AM skec: In Stepgen type 7 and 8 allows to move stepper motor with 2 h bridges
02:24 AM CaptHindsight: I've only used the L298 to drive a voice coil with PWM
02:25 AM CaptHindsight: https://youtu.be/5bfoMObhZVY?t=23 similar to
02:25 AM CaptHindsight: but i mostly use high current opamps to drive them
02:28 AM CaptHindsight: https://youtu.be/RBQmMCXzRTI?t=10 better demo
02:29 AM * Loetmichel still has a CNC with L297/L297 drivers
03:27 AM Raphael: Good morning! (or whatever time of day it is for y'all)
03:29 AM Raphael: I have a question regarding e-stops. I used the stepconf wizard to set up my machine and everything worked fine so far. Axis move, limit switches work etc. However i have trouble setting up my E-Stop circuit. I wired a normally closed E-Stop button to pin 10, inverting the input. Pin 8 is set up as E-Stop out. However, pressing e-stop/F1 in
03:29 AM Raphael: Linuxcnc while the physical estop-button is in its normal position does not change the state of Pin 8. The voltage on pin 8 stays 0 Volts. When i then activate the physical e-Stop button, Linuxcnc shows the E-Stop in the bottom left corner, but pin 8 still remains low. Only when i then press estop/F1 in linuxcnc pin 8 changes to high. Pressing
03:29 AM Raphael: F1/estop again does nothing, pin 8 remains high. Returning the physical E-Stop button to its normal position removes the E-Stop display from linuxcnc but pin 8 still remains high. Pressing F1/estop in Linuxcnc at this point turns pin 8 to low, pressing F1 again does nothing. Expected behavior would be: Pressing either F1 OR the physical e-stop
03:29 AM Raphael: button should turn pin 8 ON, however exclusively turning the physical E-stop button back to normal should turn pin 8 OFF. Has anyone had a similar issue or would be willing to help a newbie figure this out? Thanks in advance! greetz, Raphael
03:33 AM CaptHindsight: first you mention " However, pressing e-stop/F1 in Linuxcnc while the physical estop-button is in its normal position does not change the state of Pin 8. The voltage on pin 8 stays 0 Volts."
03:34 AM CaptHindsight: what is "normal position"?
03:35 AM CaptHindsight: if he shows back up in here ask him to post his config.ini and hal files
03:36 AM Raphael: Hi, sorry my brwoser freaked out
03:36 AM Raphael: Sure i'll post them, just a sec
03:37 AM Raphael: This is my .ini
03:37 AM Raphael: # Generated by stepconf 1.1 at Mon Aug 10 15:52:33 2020# Änderungen an dieser Datei werden beim nächsten# Aufruf von stepconf überschrieben.[EMC]MACHINE = ISEL_GFM4433DEBUG = 0[DISPLAY]DISPLAY = axisEDITOR = geditPOSITION_OFFSET = RELATIVEPOSITION_FEEDBACK = ACTUALARCDIVISION = 64GRIDS = 10mm 20mm 50mm 100mm 1in 2in 5in 10inMAX_FEED_OVERRIDE =
03:37 AM Raphael: 1.2MIN_SPINDLE_OVERRIDE = 0.5MAX_SPINDLE_OVERRIDE = 1.2DEFAULT_LINEAR_VELOCITY = 10.00MIN_LINEAR_VELOCITY = 0MAX_LINEAR_VELOCITY = 100.00INTRO_GRAPHIC = linuxcnc.gifINTRO_TIME = 5PROGRAM_PREFIX = /home/administrator/linuxcnc/nc_filesINCREMENTS = 5mm 1mm .5mm .1mm .05mm .01mm .005mm[FILTER]PROGRAM_EXTENSION = .png,.gif,.jpg Greyscale Depth
03:37 AM Raphael: ImagePROGRAM_EXTENSION = .py Python Scriptpng = image-to-gcodegif = image-to-gcodejpg = image-to-gcodepy = python[TASK]TASK = milltaskCYCLE_TIME = 0.010[RS274NGC]PARAMETER_FILE = linuxcnc.var[EMCMOT]EMCMOT = motmodCOMM_TIMEOUT = 1.0COMM_WAIT = 0.010BASE_PERIOD = 62500SERVO_PERIOD = 1000000[HAL]HALFILE = ISEL_GFM4433.halHALFILE =
03:37 AM Raphael: 1.500000HOME_LATCH_VEL = 1.500000HOME_IGNORE_LIMITS = YESHOME_SEQUENCE = 0
03:38 AM XXCoder: please, if more than 3 lines, use dpaste
03:38 AM Raphael: oh, that looks awefull.
03:38 AM XXCoder: it'll be formatted better too
03:38 AM Raphael: okay, thats /dpaste?
03:38 AM XXCoder: dpaste.com
03:38 AM Raphael: ah, thx
03:39 AM Raphael: https://dpaste.com/2YAN5YS6M
03:39 AM Raphael: that was the .ini
03:40 AM Raphael: And this is .hal
03:40 AM Raphael: https://dpaste.com/3NRQFFHER
03:40 AM Raphael: Thanks for your time! It's highly appreciated!
03:52 AM XXCoder: hope someone will know whats up
04:11 AM Loetmichel: *pfff* 20 min in the shop setting up the two CNC routers: already drenched in sweat. Those two 800W shopvacs for the vacuum tables REALLY heat the shop up badly. Its REALLY time to move the shop to the other office that has windows to open now that the coworker who had his desk there is gone for good... :(
04:16 AM skec: hi guys, I think I drop an idea using L298N as stepper motor driver for linuxcnc. What would be the cheapest, most used (a lot of information on how to set it up), and linuxcnc friendly stepper motor driver board for 5V stepper motor?
04:23 AM Raphael: the ULN2003 seems to be both cheap and very popular. However i've never used them. By 5V stepper motors you mean those tiny printer motors, right?
04:24 AM skec: yes, tiny printer or DVD rom motors
04:25 AM skec: I have L298N, it seems ULN2003 is similar. It both has IN1 IN2 IN3 and IN4 to control the motor
04:25 AM skec: the problem is online the most used driver is with step/direction configuration
04:26 AM skec: I was trying to look for information how to use 4 wire via parallel port linuxcnc config, but couldnt find conclusive information
04:28 AM skec: I found now this thread: https://www.forum.linuxcnc.org/9-installing-linuxcnc/33353-connecting-uln2003-to-linux-cnc
04:28 AM skec: seems thee is some info
04:30 AM Raphael: Oh, sorry..i guess it's possible, but maybe you should look into the polulu A4988 drivers
04:30 AM Raphael: theyre also pretty cheap. You'd have to be very careful with your current limits though
04:31 AM skec: I am new to all this stuff. For now, it all sounds like a deep forest to me
04:32 AM skec: in worse case, I still have several floppy drives, which I can use for motor control via step/dir. Also there are tutorials on youtube how to do it
04:34 AM sensille: also "5V" is not a very useful information with regard to stepper motors. the current is important
04:35 AM sensille: the A4988 might be the cheapest option. it depends if you want to reuse the drivers later for more powerful steppers
04:36 AM skec: I think current should be on the lower side, after all its just a dvd rom steppers (very very small).
04:36 AM skec: no, I do not want to re-use the drivers
04:36 AM skec: just for this very small learning experience
04:37 AM sensille: so yeah, A4988. probably limit it to 100mA or even less
04:37 AM skec: this why I prefer to spend as little as possible
04:37 AM sensille: and you can use 12V for the drivers
04:37 AM sensille: <1 euro each
04:37 AM skec: that is good!
04:37 AM sensille: (on aliexpress)
04:38 AM sensille: you can use any driver in 'polulu' format, though
04:39 AM skec: for A4988 it says that the stepper motor voltage it provides is 8V
04:39 AM Raphael: As long as you dont crank the current up, it wont put out 8V
04:39 AM skec: I looked at those with a will that I could use my already purchased L298Ns..
04:40 AM sensille: the voltage is not a valid measure
04:40 AM skec: ok, got it
04:40 AM sensille: my steppers are 2.8V, and i drive them with 36V
04:40 AM sensille: because the driver limits the current, so the effective voltage stays below 2.8V
04:41 AM sensille: but the high voltage is needed to achieve speed
04:42 AM skec: just for testing low speeds are fine, I guess
04:42 AM skec: I just want to see the workflow from fusion 360, cam, to linuxcnc and drawing something on paper in 5 axis
04:43 AM skec: If I am still alive after this, I might upgrade to proper machines...
04:43 AM sensille: yeah, so it doesn't matter if you use 8V or 12V, but the driver might not work with 5V
04:45 AM skec: ok
05:10 AM JT-Cave: morning
05:11 AM XXCoder: hey caveman
06:09 AM Raphael: Hey, i think i figured out my E-Stop problem from earlier. I switched to estop_latch and everything woks as expected.
06:09 AM Raphael: *works
06:10 AM XXCoder: nice!
06:18 AM Tom_itx: morning
06:19 AM JT-Cave: morning
06:19 AM Raphael: morning
06:20 AM XXCoder: morning
06:20 AM sensille: orning
09:18 AM jymmmm: morning
10:25 AM Thorhian: GOOOOOD MORNING!
10:36 AM Rab: Good morning1
10:36 AM Rab: s/1/!
12:04 PM roycroft: it's a quiet day here
12:04 PM roycroft: everyone must be working for once :)
12:24 PM skunkworks: kids and work - makes for an interesting day
12:44 PM Tom_itx is now known as Tom_L
12:59 PM jymmmm: skunkworks: Bring your masked kid to work day?
01:02 PM roycroft: i have two more glue ups to do and then the bench top pieces are fully laminated
01:02 PM roycroft: i should be able to do one at lunch and one right after work
01:03 PM Rab: My toddler loves aluminum swarf, but aluminum swarf doesn't love him.
01:03 PM roycroft: in which case i can do the final thicknessing of the bench top saturday morning, and finally get started on joinery!
01:04 PM roycroft: i'm at 84 hours into this project, and figure i'm almost half done
01:04 PM roycroft: the end of september was my goal to complete, but i might be able to move that up to mid september
01:05 PM roycroft: i'm at a point where i'm not so much anxious to have the bench done as to be able to spend time on other things
01:08 PM roycroft: and folks (here and elsewhere) are probably getting tired of hearing me talk about it, so getting it finished soon would be nice for the sake of others too
01:55 PM roycroft: holy moly
01:55 PM roycroft: the forecast for the weekend has been updated, with a high on saturday predicted to reach 39
02:58 PM jymmmm: and a low of 72
03:01 PM Deejay: gn8
03:04 PM XXCoder: this week all 70s... till sunday and its suddenly 90f lol
03:12 PM veegee: I have a horizontal air tank. Should I incline it slightly toward the condensate drain end or are they already slightly tilted internally or on the base from the factory?
03:13 PM veegee: I can't imagine there's any advantage to keeping it completely horizontal and letting water pool up inside
03:13 PM roycroft: a level would answer that better than anyone here would be able to do
03:14 PM veegee: True, I thought it might be an industry standard thing
03:14 PM roycroft: even if it were, i'd still check
03:14 PM roycroft: the great thing about standards is that everyone has their own
03:15 PM veegee: Because I'm building a new base for it and a second air tank so might as well design it with a slight tilt
03:15 PM roycroft: if you can't be bothered to check, then just shim the end away from the drain up a couple degrees
03:15 PM roycroft: that's all it takes
03:15 PM veegee: Yeah, I'm building a mobile base for it with casters and such
03:15 PM roycroft: for example, sidewalks are angled 2 degrees down toward the street for drainage
03:16 PM veegee: did not know that
03:16 PM veegee: 'that's the kind of industry standard answer I was hoping existed
03:16 PM roycroft: it's a civil engineering standard as far as i can tell
03:17 PM roycroft: every town/city where i have managed underground utility installations has had a standard sidewalk drawing that calls for 2 degree slope towards the street
03:17 PM roycroft: it may be a regional standard
03:17 PM roycroft: we get very wet here in the winter
03:17 PM veegee: Yeah same in Toronto
03:18 PM veegee: it's never nice snow, it's always a disgusting watery sludge
03:19 PM roycroft: snow is quite rare here
03:19 PM roycroft: we get a little snow every other year or so on average
03:19 PM XXCoder: what is this "ice falling down" thing
03:19 PM XXCoder: ;)
03:20 PM XXCoder: here its each year, but chances of snow lasting behind a day, or even staying at all is almost zerp
03:20 PM JavaBean: just wait until you see 3foot long icicles falling off a roof line, XXCoder... that is some serious "ice falling down"
03:20 PM XXCoder: 2 years ago winter was rare excepton, we had foot snow
03:20 PM XXCoder: lol been a long time since i last saw icicles
03:21 PM XXCoder: not tiny ones, serious ones
03:21 PM XXCoder: ones that can be used in "water puddle in locked room" murder mystery
03:25 PM roycroft: i'm going to need to pick up another gallon of glue after today
03:26 PM roycroft: the gallon i bought for this project is almost gone
03:27 PM veegee: There's a plumbing supply store 400m from my office and I never realized it until I searched for plumbing supply stores on google maps
03:27 PM veegee: Hopefully they have 3/4" compression fittings
03:27 PM veegee: I mean flare fittings, not compression
03:28 PM veegee: Everything after the final output filter on my air line is going to be copper and brass. Such a lovely metal.
04:10 PM jdh: I like 316 fittings
04:11 PM roycroft: i have two branches on my air lines
04:11 PM roycroft: one dry and one oiled
04:11 PM roycroft: i use brass industrial disconnects on the dry lines
04:11 PM roycroft: and i use steel automotive disconnects on the oiled lines
04:12 PM roycroft: that way i can never accidently plug, say, a spray gun into a line that's ever had oil in it
04:12 PM roycroft: the brass vs. steel bit is to make it easy to identify a fitting from a distance
04:14 PM roycroft: and since steel can rust it made more sense to me to use steel for the oiled stuff
04:21 PM jymmmm: China smack talk, lmao... https://ae01.alicdn.com/kf/HTB1x3aIbf1TBuNjy0Fjq6yjyXXab.jpg
04:22 PM Rab: jymmmm, halarious
04:23 PM XXCoder: yeah
04:23 PM XXCoder: i just read one about tablet screen protection. its bragging its explosion proof
04:23 PM XXCoder: damn it'd be nice if it actually was.
04:24 PM Rab: Were they tring to say "rough", or "roach"?
04:24 PM XXCoder: nah exposion
04:24 PM XXCoder: literally that word
04:24 PM Rab: I mean in the picture.
04:25 PM XXCoder: oh oops sorry heh
04:28 PM roycroft: that tablet blowed up real good
04:37 PM roycroft: https://www.youtube.com/watch?v=lQKWn6oPj-c
04:37 PM CaptHindsight: jymmmm: ours is color, others is no color
04:37 PM roycroft: for anyone who did not get the reference
04:37 PM jymmmm: CaptHindsight: yours has more pins!!!
04:39 PM CaptHindsight: ours goodly pins, other has badly pins
04:47 PM Rab: Skimming the datasheets for the TL494 and KA3842, I don't see a huge difference. KA3842 seems to have a lot more output current. Pretty weird flex, it's like saying "YOU CAN'T OVERCOME OUR LM324 TECHNOLOGY"
04:49 PM CaptHindsight: our picture clear, other picture fuzzy
04:52 PM veegee: Well that local plumbing supply turned out to be crap
04:52 PM CaptHindsight: Our comment initial caps in both lines, others no initial caps in first line
04:52 PM veegee: 3x the price of home depot
04:52 PM veegee: Gave it a nice detailed 1 star review
04:52 PM veegee: They didn't even know what an NPT tap is
04:53 PM XXCoder: i love how "bad" is all grayscale
04:53 PM XXCoder: reminds me of hard sell tv stuff
04:53 PM CaptHindsight: veegee: professional contractor grade materials vs do-it-your-selfer grade
04:54 PM XXCoder: where person dont have skills of 5 year old and spills stuff
04:54 PM veegee: CaptHindsight except it's not. I asked to see all the samples
04:54 PM veegee: Standard K and L grade copper pipe, etc
04:54 PM veegee: Unless Home Depot is lying about their pipe being K grade, it should be _exactly_ the same
04:55 PM CaptHindsight: nah just how they market stuff
04:56 PM veegee: As much as I love to hate on big faceless corporations, Home Depot has never screwed me. Return policy is excellent, pricing is great especially with price match, store hours are very convenient
04:58 PM CaptHindsight: my main grip with HD is metric fasteners are only in stainless, and the self checkout people are obnoxious
04:58 PM veegee: And you walk in knowing that the staff know nothing, so it's not a disappointment
04:59 PM Tom_L: it's a self serve world
04:59 PM * jymmmm never uses self checkout
05:00 PM veegee: But at a specialty plumbing supply store, it's not unreasonable to expect that when you ask for a 1" NPT tap, the guy comes back with an actual thread tap, not a faucet
05:00 PM CaptHindsight: i hate to ask where something is since they don't want to tell you, they make you follow them and then they grab it off the rack and hand it to you
05:00 PM veegee: oh different experience here
05:00 PM veegee: I just ask the self checkout people to do it for me
05:01 PM jymmmm: CaptHindsight: They've probably been trained to do that
05:01 PM veegee: and the products have an isle number indicator on the website
05:01 PM jymmmm: CaptHindsight: ...instead of giving a half ass answer
05:01 PM CaptHindsight: i once just asked them for the aisle number and they almost had a breakdown
05:01 PM veegee: yeah, you have to go in assuming they're all retarded
05:01 PM CaptHindsight: yeah, the training videos suck
05:02 PM jymmmm: CaptHindsight: It's minimum wage HD, what do you expect?
05:02 PM veegee: jymmmm cute girls from time to time
05:02 PM CaptHindsight: my favorite is when I am at self checkout and about to enter my pin and they stick their face in and ask if everything is OK and give you a judgemental look
05:03 PM jymmmm: NEVER enter a pin, use credit card only.
05:03 PM jymmmm: fraud prevention
05:04 PM roycroft: i'm not so concerned about the pin
05:04 PM jymmmm: you should be
05:04 PM roycroft: but i always use a credit card for two other reasons:
05:04 PM roycroft: 1. i get 2-5% cash back, depending on the card and the type of business i'm at
05:05 PM roycroft: 2. if i use my debit card the money is debited from my account immediately; if i use a credit card it's just a charge
05:05 PM roycroft: if i make a dispute i still have my money to spend if it's a credit card dispute
05:05 PM roycroft: if it's a debit card dispute i get to wait until it's resolved before i get my money back
05:07 PM roycroft: that said, my credit union pays me 2.5% interest on my checking account as long as i do at least one auto-pay and at least 12 debit card transactions per month
05:07 PM roycroft: so i use my debit card exactly 12 times/month
05:40 PM _unreal_: GETTING closer https://cdn.discordapp.com/attachments/717411349541683212/743236628298072154/15972717954133788187840798190738.jpg
05:40 PM _unreal_: upgrades to my home machine
05:40 PM _unreal_: the new dust shoe is not attached yet
05:44 PM roycroft: speaking of dustie stuff
05:44 PM roycroft: my extractor bag filled up and i did not know it until chips started coming out of my biscuit joiner
05:44 PM roycroft: i changed the bag, but the hoses are all full of chips now
05:44 PM roycroft: i'm going to have to blow them out or something
05:45 PM roycroft: it's going to be a hassle and a mess
05:45 PM roycroft: the good news is that i'm done gluing up my bench top though, and have a couple days of cure time before i can do anthing else on it
05:45 PM roycroft: so i have time to deal with the extractor
06:11 PM _unreal_: roycroft,
06:11 PM _unreal_: turn on your extractor and TAP the hoses
06:11 PM _unreal_: start closesed to the extractor
06:12 PM _unreal_: they 'SHOULD' begin to clear
06:12 PM _unreal_: what do you think of my upgrades?
06:12 PM roycroft: that did not work
06:12 PM _unreal_: well then your FARKED :)
06:12 PM _unreal_: start pulling hoses
06:12 PM roycroft: the problem is tht there's a sharp 90 degree elbow right where the main hose goes into the extractor
06:12 PM roycroft: oh, it was a huge mess
06:12 PM _unreal_: heh
06:12 PM roycroft: i had to take the connectors off the ends of the hoses
06:12 PM _unreal_: ya I own a DELTA dust collector
06:12 PM _unreal_: its at work BUT
06:13 PM roycroft: and dig out as many chips as i could
06:13 PM _unreal_: one of those REALLLLLLLY nice $400 deltas
06:13 PM roycroft: then run an air nozzle into an end, shoot it with 130psi air
06:13 PM roycroft: shake, tap, stomp on the hose
06:13 PM roycroft: insert the nozzle in the other end
06:13 PM roycroft: lather, rinse, repeat
06:13 PM roycroft: about a dozne times until the hose was clear
06:13 PM roycroft: then i had to reassemble it
06:14 PM roycroft: disassemble the other hose
06:14 PM roycroft: and do the same thing
06:14 PM roycroft: ths is a festool extractor
06:14 PM roycroft: i've never had this problem with it before
06:14 PM CaptHindsight: there is a Linuxcnc server on Discord
06:14 PM roycroft: but i use it mostly for sanding
06:14 PM roycroft: and the fine dust from sanding would not clog it
06:14 PM _unreal_: https://cdn.mscdirect.com/global/images/ProductImages/0023355-11.jpg
06:14 PM _unreal_: that is more or less the version I have
06:14 PM roycroft: this time, the bag filled up just as i started to cut some biscuit slots
06:15 PM CaptHindsight: discord is annoying, hide the log out button, and login paranoia
06:15 PM roycroft: and i cut a *lot* of biscuit slots - about 150
06:15 PM roycroft: the shavings from that are just the right size to completely fill up the hoses, then compact until the cut off the vacuum
06:16 PM _unreal_: I use discord for stocks and STOCKS only
06:16 PM roycroft: aah, this was not my main dust extractor that i use for the big machines
06:17 PM roycroft: that has a clear bag on the bottom, so i can monitor how full it is
06:17 PM roycroft: except it's not inside my shop, so i have to remember to go out and check every once in a while
06:17 PM roycroft: i have the previous generation of this:
06:17 PM roycroft: https://www.festoolusa.com/products/dust-extraction/mobile-dust-extractors/574837---ct-midi-i-hepa-usa#Overview
06:18 PM roycroft: mine does not have the self-clean feature, which is actually good - i don't need it as i don't do sheetrock sanding with it - and it doesn't have the bluetooth interface
06:18 PM roycroft: but it's otherwise the same thing
06:19 PM roycroft: and it has a true hepa rating
06:19 PM roycroft: except i just had to blow fine dust all over the place unclogging the hoses
06:19 PM roycroft: i did that outside, but some of the dust floated back into my shop
06:20 PM CaptHindsight: close the doors and windows and wait for the dust to settle
06:20 PM roycroft: my main dust collector is similar to this:
06:20 PM roycroft: https://www.grizzly.com/products/Grizzly-1-1-2-HP-Portable-Dust-Collector/G1028Z2
06:21 PM CaptHindsight: but sneaky bugs still get it
06:21 PM CaptHindsight: it/in
06:22 PM roycroft: the shop is already dusty from the project i'm working on
06:22 PM roycroft: it's worse now
06:22 PM roycroft: but it's not like it was clean room clean before i started this
06:22 PM CaptHindsight: roycroft: do you have to clean the fan often?
06:22 PM roycroft: i've never had to clean it
06:22 PM XXCoder: isnt there a way to build a super filter using fiber filters and fan?
06:23 PM CaptHindsight: my stuff sticks to everything so I have to prefilter before the fans stage
06:23 PM roycroft: yes
06:23 PM roycroft: one can build a cyclone filter to catch 99+% of the stuff before it gets to the main dust collector
06:23 PM roycroft: i've started that project, but haven't finished it yet
06:24 PM roycroft: i need to finish it, but i need to sell a couple pieces of equipment first - i don't have room for it next to the dust collector right now
06:24 PM XXCoder: ceiling high enough to attach one?
06:24 PM roycroft: the dust collector almost touches the ceiling
06:24 PM XXCoder: or a hose system to bring it outside cyclone
06:25 PM roycroft: but i need the cyclone bin to sit on the ground, so i can empty it easily
06:25 PM roycroft: i just need to sell that equipment
06:25 PM roycroft: i sold a bunch of surplus stuff last spring
06:25 PM roycroft: but then i got busy with other projects
06:26 PM roycroft: i could use some space and some cash again though, so i'll probably get back to selling stuff soon
06:46 PM Thorhian: I tested out my new AC servo today. So far it runs great!
06:50 PM Tom_L: link?
07:03 PM veegee: I'm confused about their "resolution" spec (360x720 dpi): https://www.brother.ca/en/p/ptp900w
07:03 PM veegee: What's the best way to test that?
07:04 PM veegee: Print a square graphic with every other pixel black/white?
07:04 PM veegee: I have that label maker and it's excellent, along with a couple of their other label makers but it doesn't make sense that the x and y resolution are not equal
07:05 PM XXCoder: draw exact scale rectangle to it
07:05 PM XXCoder: you can then compare if it makes sense
07:05 PM veegee: ah yeah that's true. You mean square right?
07:05 PM XXCoder: ie 1/2 size rectangle should take 1/4 of area
07:05 PM XXCoder: no, recangle
07:06 PM XXCoder: 180x360 one
07:06 PM XXCoder: draw at top left corner
07:06 PM XXCoder: and bottom right
07:06 PM XXCoder: it should result in 4 equal recangles
07:06 PM XXCoder: 2 colored in
07:06 PM veegee: so if it's not 1:2 ratio, that'll tell me if the resolution is square or not
07:06 PM XXCoder: and if numbers is correct at akk
07:08 PM veegee: Well what I really want to know is if its dots are squares or rectangles, that's all
07:09 PM XXCoder: for that just do each pixel black and white checker
07:09 PM XXCoder: then use len
07:09 PM veegee: yeah that's what I was saying above
07:09 PM XXCoder: sometimes they use subpixels count to have bigger numbers
07:09 PM XXCoder: annoying
07:10 PM veegee: and if its 360 pixels in the horizontal or vertical direction
07:10 PM veegee: It's a monochrome thermal label printer
07:10 PM veegee: it uses thermal paper so why would they need subpixels?
07:10 PM XXCoder: yeah
07:11 PM veegee: Either way the resolution on that is amazing. I only use 4k+ monitors and to my eyes it looks great
07:11 PM veegee: anything less has jagged edges on text which I hate
07:13 PM XXCoder: that nonsquare pixels is probably cheap way to have high resolution
07:13 PM veegee: https://www.brother.ca/en/p/pte500vp this one is 180x180
07:13 PM veegee: https://www.brother.ca/en/p/PTD600 this one is 180x360
07:14 PM veegee: I have the 180x360 one as well and I can clearly see jagged text. It's a non issue, but I'm just very particular about certain things
07:14 PM veegee: With the 360x720, it's very smooth
07:15 PM veegee: I love the label tapes they make. Even the Chinese knock off ones are great. I label my oil syringes with them and never had a single one peel off even when they get oily as long as you apply them on a clean surface
07:15 PM veegee: Every other kind of tape and what not has peeled off eventually. Their HGe tapes are even tougher
07:15 PM XXCoder: quality stuff indeed
07:16 PM XXCoder: how much is reels?
07:16 PM veegee: very cheap https://www.amazon.ca/Compatible-Brother-P-Touch-TZe-241-tze-241/dp/B07MP1WY9L
07:17 PM XXCoder: hey immortal being that likes pink
07:17 PM veegee: I have a variety of different tapes with different colours. The ones I use most often are the standard 18mm white ones and I've only completely used up 2 of those cartridges. I haven't used a full cartridge of any of the other types
07:17 PM XXCoder: interesting. i have no need for labelmakers at this time but good to know
07:19 PM veegee: I label everything, like all the ethernet cables on my 48 port switches, OM3 fiber cables, circuit breaker panels, etc. I bar code things as well because I don't like to lose my tools and parts
07:19 PM veegee: I have a database that keeps track of where everything is in the office and workshop
07:20 PM veegee: And all my LTO tapes in the tape library. The autoloader has a barcode scanner so it can read the backup tape labels. It's great
07:25 PM veegee: Only thing I hate is nothing sticks to blow molded plastic cases that a lot of tools come in, especially with its bumpy texture. I have to spray on 3 layers of kilz primer, then stick a layer of very thick gorilla tape, and then the label over it
07:25 PM veegee: Unless someone can suggest a better way to go about it. Eventually I'll CNC machine custom cases
07:27 PM Tom_L: put them all on your workbench and you will know where they all are
07:28 PM Tom_L: make a shadow board
07:37 PM snakedGT is now known as snaked
08:06 PM Thorhian: Tom_L: https://www.ebay.com/itm/184285171784
08:07 PM Thorhian: That's what I got.
08:07 PM Tom_L: how are you driving it?
08:07 PM Tom_L: signal wise
08:08 PM Thorhian: There is a parallel port that connects to the driver that comes with it. You can also talk the the driver with modbus (lol).
08:08 PM Tom_L: not analog?
08:09 PM Thorhian: You can control the RPM with an analog signal via the pins on it's parallel port connector.
08:10 PM Thorhian: It should work with my Mesa 7i76.
08:10 PM Tom_L: 0-10v?
08:10 PM Thorhian: Let me grab the documentation book.
08:10 PM Tom_L: no pdf?
08:10 PM Tom_L: i'd be interested in looking at the pdf
08:11 PM Thorhian: No PDF unfortunately :/ It just came with the booklet.
08:12 PM Thorhian: No load RPM max is 3000 according to them btw. Plenty of torque to do some gearing to get more RPMs.
08:13 PM Thorhian: The driver can accept a -10V ~ +10V analog signal.
08:15 PM Tom_L: ok, mine does 0-10 however some do -10 +10
08:15 PM Tom_L: get it hooked up so i can decide if i want one :D
08:16 PM Thorhian: Hooked up? I mean the motor is, but I need to build the rest of my mill to actually put it to the milling test.
08:16 PM Tom_L: oh
08:16 PM Tom_L: i wish it did 0-10v
08:19 PM Thorhian: I mean, I bet you could make a simple circuit to bridge your current interface to this new one.
08:20 PM Thorhian: What are you using that can only do 0-10V? I know the Mesa 7i76 can do up to -15V to 15V.
08:21 PM Tom_L: 7i47s
08:23 PM CaptHindsight: Thorhian: the drive only has analog inputs for the servo control, not Step and Dir?
08:23 PM CaptHindsight: 7i76 is a Step Dir output board, the 7i77 and 7i47 are analog out for analog servo controllers
08:24 PM Thorhian: The 7i76 also has a single analog output for spindle motor control, which is what I'm using this motor for.
08:24 PM Thorhian: It also has an encoder input too.
08:25 PM CaptHindsight: oh sorry forgot you are using that for the spindle
08:25 PM Thorhian: It's all good lol
08:25 PM Tom_L: so do you need a +10 ~-10v supply for the 7i76 or does it generate it on board?
08:25 PM CaptHindsight: i have servos that size on XYZ
08:25 PM Thorhian: You need to supply it with those voltages.
08:25 PM Tom_L: what are you using for the -10v supply?
08:26 PM Thorhian: It's a DC voltage, so just my ATX supply that is feeding my Mesa boards 5V and 12V field power.
08:27 PM Tom_L: you just said you need to supply the -10v to it
08:27 PM Tom_L: afik ATX doesn't have that
08:28 PM Thorhian: I thought you could just reverse the wiring since it's DC?
08:28 PM Thorhian: Hence why DC electronics have reverse current protection for batteries being put in wrong?
08:28 PM Tom_L: you need BOTH +10v and -10v
08:29 PM Thorhian: Yes. I know.
08:30 PM Tom_L: i don't see how you can get both from an atx supply
08:36 PM jdh: surely you don't have to actually feed the board -10v. it is made for this.
08:37 PM jdh: oh, it's just a pot replacement
08:43 PM Tom_L: some industrial control use -10 +10 while others use 0-10v
08:43 PM Tom_L: i don't have experience with the -10 +10 ones is why i'm asking
08:44 PM jdh: yeah, most of the normal ac/dc drives I have with bipolar inputs supply the voltage so you can just use a pot.
08:44 PM jymmmm: Soldering 8ga, I like it... https://www.youtube.com/watch?v=gbDp-iyppjw
08:44 PM Tom_L: jdh, so how would you control that with linuxcnc?
08:46 PM Tom_L: my 7i47S has 0-10v for spindle
08:46 PM Tom_L: which i'm currently using
08:47 PM jdh: do you need cw & ccw spindle control?
08:47 PM Tom_L: that would be part of the reason for the upgrade yes
08:47 PM Tom_L: i had it on this one but the motor isn't big enough to do rigid tapping
08:48 PM Tom_L: and that's where the -10v comes in
08:49 PM Tom_L: Thorhian may not need it
08:49 PM jdh: 7i47 says same spindle control. pot replacement
08:49 PM Tom_L: and i doubt linuxcnc has a modbus driver for that drive
08:49 PM Tom_L: jdh, it's a 10v analog signal
08:49 PM Thorhian: I mean, I want to do rigid tapping, so I will need both.
08:50 PM Thorhian: Ill be back in a while.
08:50 PM Tom_L: jdh, you supply the 10v for it though
08:50 PM jdh: The 7I47S provides one analog output for spindle control. The analog output is a
08:50 PM jdh: isolated potentiometer replacement type device
08:50 PM Tom_L: but it won't do the negative voltage
08:50 PM Tom_L: unlike the other mesa boards
08:51 PM jdh: dunno what those servo drives have. I just mean most plain ac/dc motor drives I use at work have the +/- 10v so you can just use a pot. the 7i47s output would work fine with them.
08:52 PM Tom_L: doesn't the negative v control the reverse though?
08:52 PM jdh: yes, but the -10 (in my case) is supplied by the drive
08:52 PM Tom_L: i wish i knew more about the drivers
08:52 PM jdh: a pinout would be more useful
08:53 PM Tom_L: i'm pretty sure the 7i47S won't work on a negative swing though
08:53 PM Tom_L: i'm not sure what it's range is though
08:53 PM Tom_L: you would need a 20v swing
08:54 PM Tom_L: i may be wrong but i don't see it working
08:54 PM jdh: 5-15vdc
08:55 PM jdh: so you could get +/-5 anyway.
08:55 PM jdh: crank the gain way up on the drive
08:55 PM Tom_L: you may only get half the rpm from the driver though..?
08:56 PM jdh: could prob get more than half with gain tweak
08:58 PM Tom_L: i'm not quite ready to plop down 3 bills on a chance it might not
09:05 PM veegee: XXCoder by printing monochrome noise and looking at it under a microscope, it looks like the dots are square
09:06 PM veegee: that is, the minimum dot shape is a square, not a rectangle
09:06 PM XXCoder: yeah hmm
09:06 PM veegee: so I have no idea what the 180x360 resolution is about
09:06 PM XXCoder: well you can always try 2 rectangle thing
09:07 PM jymmmm: veegee: what does monochromatic noise look like?
09:08 PM veegee: jymmmm random black/white pixels
09:08 PM XXCoder: one colored noise of course
09:08 PM veegee: I have a calibration ruler for my microscope too so I can measure the exact size of the pixel
09:08 PM jymmmm: veegee: Nah, not random =)
09:09 PM veegee: doesn't matter, the point is it shows the minimum size of dot it can print
09:09 PM jymmmm: veegee: Oh that's easy.... This big ---> .
09:11 PM veegee: I'm clearly seeing dots that are 25µm in size
09:12 PM veegee: 360 dots per inch is 70.5µm dot size
09:15 PM veegee: Whoops I mean I'm clearly seeing the predicted 70.5µm dot size. It's spot on with the calibration ruler which shows various line widths
09:17 PM jymmmm: veegee: Pfff, clean your glasses/optics ;)
09:18 PM veegee: It's a digital camera microscope with a well protected lens
09:22 PM veegee: Hmmmm sum ting so confucius me
09:23 PM veegee: At least they're not lying about their resolution. 180x360 is the advertised spec, but I'm seeing 360 DPI features in both the horizontal and vertical axis
09:24 PM veegee: I guess I'll give them a call. I really have to know what that non square dimension is all about
09:24 PM XXCoder: maybe some of height cant be used?
09:24 PM veegee: definitely nowhere near the 2:1 ratio
09:25 PM veegee: It's able to use the entire size of the label except maybe a < 1mm border and that's just the default setting
09:25 PM veegee: no reason it can't use the whole label. It's compatible with multiple cartridge sizes
09:26 PM veegee: The damn bright blue ring light on the microscope is going to mess with my circadian rhythm I worked so hard to correct :(
09:29 PM Tom_L: use QR instead
09:29 PM veegee: Either way, bloody impressive for an $80 standalone label maker with a colour LCD and full computer control for arbitrary image printing
09:30 PM veegee: Runs on 6 AA batteries too and comes with an energy star logo on it lol
09:47 PM Thorhian: So Tom_L, ATX Power supplies have both 12V and -12V lines. Gotta love legacy support.
09:51 PM Thorhian: So in the case of the 7i76, if you have an ATX supply and some resistors, it should be fine?
09:59 PM Tom_L: you'd have to take that up with pcw_home
10:05 PM veegee: One good thing about NC threads is that you can make a 6NC32 into an 8NC32 or 10NC32 if you damage a hole without having to drill larger than the major diameter
10:05 PM veegee: I'm not aware of any metric thread that can do that
10:06 PM Tom_L: NF
10:06 PM veegee: Well M6-1 and M7-1 but M7 is rare
10:06 PM Tom_L: NF not NC
10:07 PM veegee: No it's NC, I just tapped an 6NC32 into an 8NC32
10:07 PM Tom_L: i thought NC was coarse
10:07 PM veegee: a damaged 6NC32 that is, and it worked perfectly
10:07 PM veegee: it is
10:08 PM veegee: coarse is the common one for both national thread and metric
10:08 PM veegee: NF is rare
10:08 PM roycroft: nf is not "rare"
10:08 PM roycroft: nf is less common than nc
10:08 PM Thorhian: I mean Tom_L, the 7i76 docs states that those pins can handle 15V/-15V *Shrug*
10:08 PM Tom_L: 32 is NF
10:08 PM roycroft: but by no means "rare"
10:08 PM veegee: ok bad phrasing on my part
10:08 PM roycroft: on a #6 or #6 it's coarse
10:08 PM roycroft: er
10:09 PM veegee: just much much less comon
10:09 PM Tom_L: 24 is NC
10:09 PM roycroft: a #6 or #8
10:09 PM veegee: Tom_L it depends on the diameter
10:09 PM roycroft: on a #10 it's fine
10:09 PM Tom_L: Thorhian, yes but the swing on your driver won't
10:09 PM veegee: oh you're right about the #10, my chart has a misprint on it
10:10 PM Tom_L: dammit! you made me look...
10:10 PM Thorhian: Swing is not something I am familiar with. Are you refering to the change in voltage?
10:10 PM Tom_L: yes
10:11 PM Tom_L: and if you give the mesa card a +12 ~ -12 that's what will go out to the driver and it won't like it
10:11 PM Thorhian: The driver a -10V to 10V input range. Also, the resistors are for dropping the 12V to 10V.
10:11 PM Tom_L: okay
10:11 PM veegee: If your ATX -12V rail has anything to do with powering stuff, don't use it for that
10:12 PM veegee: depending on the power supply, they put out very little current at -12V
10:12 PM roycroft: but i don't get the bit about not being able to do that kind of enlargement with a metric fastener
10:12 PM Thorhian: Why veegee? This is just for signaling, not for powering anything that needs significant current.
10:12 PM roycroft: an m6x1 thread wants a 5.0mm tap hole
10:12 PM roycroft: m7x1 wants a 6.0mm tap hole
10:12 PM Tom_L: roycroft, you just need a bigger wrench
10:12 PM roycroft: m8x1 wants a 7.0mm tap hole
10:13 PM veegee: ok again my mistake, my chart omits the non common ones
10:13 PM veegee: I've also had difficulty finding odd numbered metric fasteners at local stores
10:13 PM veegee: everyone stocks the common even number sizes
10:14 PM veegee: But had no problem with the 6-32, 8-32, 10-32 even
10:14 PM Tom_L: i'd use something commonly available personally
10:14 PM veegee: that's what I'm saying
10:14 PM roycroft: #10-32 can be hard to find at big box stores, especially in useful lengths/metals
10:14 PM Thorhian: The PSU I have can do 0.8 amps on the -12V line. Should be fine for the analog spindle interface.
10:14 PM Tom_L: luckily i've got a local fastener guy
10:14 PM veegee: As much as I want to buy metric from home depot, it's more practical to buy the freedumb size fasteners
10:15 PM veegee: they have them in gr 2, gr 5, galvanized, stainless
10:15 PM roycroft: i try not to buy anything from home depot, for several reasons
10:15 PM Tom_L: i can go to ace and get 2 M5 or i can go to him and get 100 for the same price
10:15 PM veegee: For the metric, very little choice
10:15 PM roycroft: but importantly, one of them is that useful fasteners cost 5-10x there as elsewhere
10:15 PM veegee: well by home depot I mean big box store with large business hours
10:15 PM Thorhian: I have a Fastenal nearby, makes getting lots of fasteners pretty easy and cheap.
10:15 PM roycroft: if you're buying deck screws or nails they are cost competetive
10:16 PM veegee: roycroft buy the box and price match
10:16 PM roycroft: i get a lot of stuff from eugene fastener
10:16 PM roycroft: and a lot of stuff from mcmaster-carr
10:16 PM roycroft: when eugene fastener don't have what i need
10:16 PM roycroft: i also get a fair amount of fasteners on ebay
10:17 PM roycroft: sometimes there are really good deals there
10:17 PM veegee: I have to check mcmaster fastener pricing. We have fastenal in canada
10:17 PM Tom_L: fastenal is higher
10:17 PM roycroft: the local fastenal folks are jerks
10:17 PM roycroft: i can't stand dealing with them, so i don't
10:17 PM veegee: But I did make friends with some folks in the industry so I can use their business accounts with steep discounts
10:18 PM veegee: With a little 5% or so cash under the table for them
10:18 PM Tom_L: veegee systems international
10:19 PM veegee: Tom_L website? so many results with that keyword
10:19 PM Tom_L: just pulled it right outta my arse
10:19 PM veegee: classic Tom
10:20 PM roycroft: i just bought some bolts and washers from this outfit:
10:20 PM roycroft: https://www.oldwestiron.com
10:20 PM veegee: The 4140 chromoly prices here are decent. I should be able to thread my own long fasteners and then heat treat them
10:21 PM Tom_L: https://www.wichitafasteners.com/
10:23 PM Tom_L: probably no online ordering
10:24 PM Tom_L: https://www.fastenerconnection.com/
10:24 PM Tom_L: used to go to those guys
10:24 PM Tom_L: but the other one is closer to me
10:27 PM roycroft: all i know is that home depot is the next to last place i go when i need fasteners
10:27 PM roycroft: lowe's is the last place
10:27 PM veegee: So easy to price match
10:27 PM veegee: you gotta price match man, that's where you get the big discounts
10:28 PM roycroft: no it's not
10:28 PM veegee: Well it's one way
10:28 PM roycroft: my local home depot store claim to price match, but are total assholes when i try to do it
10:28 PM Tom_L: not when i can usually get a box of 100 for $5 or thereabouts
10:28 PM veegee: Ok I guess it's very region specific
10:28 PM veegee: I never had an issue in Toronto
10:28 PM roycroft: but home depot are a really horrible company
10:29 PM roycroft: they treat their employees like crap
10:29 PM Tom_L: they all do
10:29 PM veegee: yeah
10:29 PM roycroft: they pay women less than men
10:29 PM veegee: well obviously
10:29 PM veegee: women are inferior to men
10:29 PM roycroft: fuck you
10:29 PM roycroft: don't even joke about that stufgf
10:29 PM Tom_L: oh god, there goes the neighborhood
10:29 PM veegee: LOL
10:30 PM veegee: my feminist girlfriend wouldn't even bat an eye at that joke
10:30 PM veegee: this guy is just... I struck gold
10:30 PM * roycroft disengages before he says something he shouldn't
10:30 PM veegee: I love you man
10:30 PM veegee: I love you so much
10:30 PM veegee: Please never change
10:30 PM roycroft: no you don't
10:30 PM roycroft: you only love yourself
10:31 PM roycroft: now i'm done :)
10:31 PM veegee: Well you have to love yourself first, that's part of a healthy lifestyle
10:31 PM Tom_L: you both have wonderful personalities
10:31 PM veegee: As far as mental health goes
10:31 PM veegee: When you love yourself, you can share your love with the world
10:32 PM veegee: I love making people laugh
10:33 PM jymmmm: veegee: <---- slut
10:33 PM veegee: I wish
10:33 PM * Tom_L snickers
10:33 PM jymmmm: veegee: <---- slut in training
10:33 PM veegee: It's been so hard lately
10:33 PM veegee: yeah I have good employees
10:33 PM veegee: they're helping me out a lot with the training
10:33 PM jymmmm: veegee: <---- slut wannabe
10:33 PM veegee: Nailed it
10:34 PM jymmmm: woohoo
10:36 PM veegee: my girlfriend is a strong woman, very athletic, very pro rights for women and LGBT+, etc.
10:36 PM veegee: like also physically stronger than me, she can do 50 chin ups straight
10:37 PM veegee: anyway, I can make sexist, racist jokes all day and she wouldn't even flinch
10:37 PM veegee: she can tell the difference between a joke and _actual_ sexism
10:37 PM Tom_L: better be careful she might whip yer arse
10:37 PM veegee: already does, that's how I like it
10:39 PM veegee: People who get triggered easily are amazingly fun, like the Karen type
10:39 PM veegee: At the beach the other day, she was wearing a really hot bikini and some random woman started yelling at her for "dressing like a whore" or something
10:40 PM veegee: ... at a beach
10:40 PM veegee: She caught it on camera it was hilarious. Then I kept trolling the woman
10:40 PM veegee: I took off my shirt, put on the bikini bra (she had another in her bag) and ran after the mean lady while screaming COME BACK I JUST WANT TO GIVE YOU A HUG
10:41 PM veegee: she caught that part on video too
10:43 PM veegee: you just have to spread the love man
10:43 PM veegee: While wearing skimpy bikinis, that's the best way
10:59 PM zipper is now known as Guest12784
11:12 PM infornography: I cant stop buying tooling
11:35 PM jesseg: hey have you guys ever heard of repairing a worn shaft (which rolls against needle bearings) by building it up with back hoe hardface rod then turning/grinding it back to size and finish? Or is there a better way?
11:36 PM jesseg: It's the secondary shaft in a somewhat rare 1980's manual transmission. The end of the shaft rides directly in a large roller bearing.
11:37 PM roycroft: that's often done with spray welding, if the wear is not too great
11:39 PM jesseg: so "Wear" is the wrong word. Surface fatigue lead to a chip, which of course is higher PSI on remaining surface under roller, so more chips, and it is a band half way around the shaft now. Almost half a mm deep I would guess.
11:39 PM jesseg: at least that's what it looks like happened.
11:40 PM roycroft: it can probably be repaired, but not by an average home shop welder
11:40 PM jesseg: Using a metco spray gun?
11:40 PM roycroft: or even a fairly competent professional welder who does not generally do that kind of repair
11:41 PM jesseg: I also thought of just turning it down significantly smaller then pressing on a hardened sleeve to bring it back to original diameter with a new fresh surface for the rollers to enjoy
11:43 PM roycroft: a spray gun is not going to work if there are chips, unless they are very shallow
11:43 PM roycroft: i'm no expert on the process, but i'd guess that 0.5mm can be built up
11:46 PM jesseg: Hmm, perhaps I could actually replace that bearing with a non-tapered roller bearing that has it's own inner race - and just turn down the shaft to fit that.
11:47 PM jesseg: although I actually do have an old Oxy-Acet Metco gun, similar to this:https://www.ebay.com/itm/143681100566
11:47 PM jesseg: Got it at a yard sale for $5 a decade ago, never used it
11:51 PM roycroft: i'd not practise on the rare shaft
11:54 PM Centurion-Dan2 is now known as Centurion_Dan