#linuxcnc Logs
May 15 2019
#linuxcnc Calendar
01:14 AM veek: MDS vulnerability https://www.theverge.com/2019/5/14/18623708/zombieload-attack-intel-processors-speculative-execution
01:18 AM veek: please patch me precious' https://mdsattacks.com/
01:51 AM Deejay: moin
02:37 AM Loetmichel: maaan, one could think its monday... already dismantled, cleaned, new heatsink compound, new rams a notebook in before the first coffee... i HATE those "NOW" requests from the boss... :-(
02:38 AM Loetmichel: ... somehow its back together but here are 2 M2*3mm screws on the desk... strange ;)
02:41 AM sensille: only 2? not too bad
04:14 AM XXCoder: jthornton: lol glad you found out why
05:04 AM jthornton: me too
05:11 AM Tom_L: morning
05:13 AM jthornton: morning
05:13 AM Loetmichel: sensille: yeah, and i keven know where i forgot them
05:13 AM Loetmichel: ;)
05:15 AM Loetmichel: MAAAN, its lunch break again. I noticed because the CNC mill is doing its thing. coworker is like clockwork doing private jobs on it EVERY lunch break... and then some... it starts to get on my nerves.
05:55 AM The_Ball: Loetmichel, so is there a policy about private machine use?
05:56 AM Loetmichel: no
05:56 AM Loetmichel: there isnt
05:56 AM Loetmichel: but common courtesy says that you AT LEAST dont block the machine after lunch break.
05:57 AM Loetmichel: sometimes his worpieces run well into the late evening.
05:57 AM Loetmichel: i was tempted to throw off his workpieces halfdone quite a few times lately
05:57 AM jthornton: he should start his private projects after work
06:02 AM XXCoder: my work space is bit more strict, can only use machine not in current use, cannot profit, and you gonna run something while you run yours.
06:02 AM XXCoder: only one more flexiable is you can run yours anytime, just cant ignore your job.
06:02 AM jthornton: sounds fair to me, what about tooling?
06:03 AM Loetmichel: XXCoder: while we have two of those cnc 6040 machines one isnt ready to work yet
06:04 AM XXCoder: heh loet shop Im not certain how many machines there is
06:04 AM Loetmichel: so if he is doing private jobs and blocks the only working router we cant do the COMPANY jobs... THATS what angers me
06:05 AM XXCoder: lets see, theres a61, okuma (big one, small one is gone), haas huge, another big machine and thats just small area at shop
06:05 AM XXCoder: area I normally work at has small haas, matiko, fadal, doosan, ps95
06:05 AM XXCoder: other area as another 2 ps95, and mean green machine
06:05 AM XXCoder: theres 4 robos
06:06 AM XXCoder: we still have one office mill haas and one old fadal bot those are also retired
06:06 AM Loetmichel: as i said: he can do private work all day, i dont care. what pisse me off is when i cant do COMPANY work because the CNC is in use for his private stuff
06:06 AM XXCoder: and theres still more lol though mostly lathes
06:06 AM XXCoder: indeed, dont block company business
06:07 AM XXCoder: jthornton: tooling is interesting, can use company but only limited scope. I used company facemill but my own endmill
06:07 AM XXCoder: may end up have to repay broken tool and those can be quite expensive
06:09 AM Loetmichel: what annoys me: i just had to go to him and tell him: "its 1300, get that stuff off the machine, i need it for some PCBs.." his answer: "wait an hour." Instead of asking beforehand if the machine is free today.
06:11 AM XXCoder: wow
06:16 AM jthornton: that's pretty arrogant behavior for an employee
06:16 AM XXCoder: indeed
07:15 AM elmo40: CaptHindsight, that cbd-3d.com link you posted. looks like a half-ass board to me! why are they integrating the driver into the board? what happens when they fail(and they do!)
07:15 AM XXCoder: planning for future customers
07:16 AM elmo40: plus, it uses an alegro a4988!?!??! everyone does an upgrade to TMC2208 or better these days.
07:18 AM elmo40: my main question is why only 3 stepper drivers? where do i plug in the Extruder? looks more like a laser board than a 3D printer board.
07:28 AM elmo40: https://github.com/aewallin/cutsim-1
09:18 AM net|: https://github.com/tecan/QShorty
09:35 AM Joe_Hildreth: Hi Everyone!
09:36 AM Joe_Hildreth: Have a quetion about compiling LCNC. Using git to download the source and having master checked out, I changed to the debian directory and issued ./configure uspace to determine the dependencies. I get the following output:
09:37 AM Joe_Hildreth: ./configure: line 75: python: command not found
09:37 AM Joe_Hildreth: ./configure: line 76: python: command not found
09:37 AM Joe_Hildreth: Package libxenomai-dev exists, but information about its source package
09:37 AM Joe_Hildreth: is not available. This most likely means that you do not have the right deb-src lines in /etc/apt, or that you need to "apt-get update".
09:39 AM Joe_Hildreth: Now, I do not have python installed so the first two errors I understand. ./configure does not create a control file. Now if I checkout branch 2.7 and run ./configure uspace I get:
09:40 AM Joe_Hildreth: I get the messages about python, and a message about unknown distrobution: Ubuntu 18.04.
09:41 AM Joe_Hildreth: But it does say "successfully configured for 'uspace-Ubuntu-18.04'-'uspace'.." and does create a control file.
09:41 AM jthornton: yea configure does not know about ubuntu
09:42 AM jthornton: why ubuntu?
09:42 AM jthornton: http://gnipsel.com/linuxcnc/uspace/index.html
09:43 AM Joe_Hildreth: John: I doen a video on compiling a realtime kernel for LCNC, My example was done on Lubuntu 18.04. Just the distro I picked.
09:43 AM Joe_Hildreth: I am working on a follow up tutorial on compiling LCNC and was going to use the same machine. I started down this path because I have been asked about running LCNC on Ubuntu
09:45 AM Joe_Hildreth: I have compiled the code, but went through a manual process of determining the dependencies. I thought Ubuntu being a Debian derivative would allow me to use the dpkg-checkbuilddeps command.
09:45 AM Joe_Hildreth: Here is the newest video: https://www.youtube.com/watch?v=RjTfKF7gcIo
09:45 AM Joe_Hildreth: I have updated the forum to include it.
09:48 AM Joe_Hildreth: Now, if in branch 2.7, dpkg-checkbuilddeps works. It returns a list of unmet build dependencies. But does not create the control file in master branch. I was just wondering what the difference was.
09:48 AM mozmck: Joe_Hildreth: that is correct that you can use dpkg-checkbuilddeps
09:49 AM mozmck: I use Ubuntu as well because it supports more hardware out of the box - debian makes you enable non-free repos to get firmware and some drivers and all.
09:50 AM Joe_Hildreth: mozmck: I am using it mostly because of user requests on my YT channel. So I decided on Lubuntu 18.04, because I have old hardware and it is fairly light.
09:51 AM mozmck: Yes, and it's not a bad desktop either.
09:52 AM mozmck: Just a minute and I can send you stuff to add to the configure script to get it to configure for 18.04 in 2.7.
09:52 AM Joe_Hildreth: mozmck: I am exploring different options of compiling and whatnot for the tutorial I am putting together. I just found it odd, that downloading the source and while in master comfigure does not work. It seems to work in branch 2.7
09:53 AM JT-Shop: what desktop does lubuntu have?
09:53 AM Joe_Hildreth: Lxfe, I think.
09:53 AM mozmck: LXDE
09:53 AM Joe_Hildreth: That's it.
09:53 AM Joe_Hildreth: mozmck, can you email the info to xavier@gtec.com
09:53 AM mozmck: It's a little lighter than XFCE
09:54 AM JT-Shop: does that make a difference with todays PC's and huge memory?
09:54 AM mozmck: You sound like a Java developer or something :-D
09:54 AM JT-Shop: lol
09:54 AM JT-Shop: never touch the stuff
09:55 AM mozmck: It makes a lot of difference for embedded controllers and such.
09:55 AM JT-Shop: for debian I use a non-free net install lately
09:55 AM Joe_Hildreth: :-)
09:55 AM JT-Shop: like rpi?
09:56 AM mozmck: Yes, or even Atom based boards and all - the less fancy graphics and bloat the faster everything will run.
09:56 AM Joe_Hildreth: I primarily chose it because the machines I have laying about to experiment are all 10yrs old give or take.
09:56 AM JT-Shop: that makes sense, can you even get an atom based mother board anymore?
09:57 AM JT-Shop: that also makes sense if you have old pc's
09:57 AM mozmck: I hate how many new projects now are javascript and based on Electron. What should be a tiny utility or program now is a 100+ MB download and loads correspondingly slow.
09:57 AM JT-Shop: damn that's nuts
10:00 AM mozmck: It was the same with MS dotNET though - a little Microchip utility for programming PIC chips with the PicKit2 programmer required it's own version of dot NET and was nearly 100 MB with that. I made a similar utility with FLTK statically linked and it was about 500 KB
10:03 AM mozmck: JT-Shop: I'm looking at timing gcode execution and looking at your TIME hal component. It does not look like there is a way to pause the timer when code is paused - is that right?
10:10 AM mozmck: Joe_Hildreth: I emailed you the files.
10:11 AM Joe_Hildreth: mozmck: Thank you, just received them.
10:12 AM Joe_Hildreth: mozmck: Awesome tagling by the way. :-D
10:12 AM mozmck: Thanks!
10:13 AM JT-Shop: mozmck: no but that could be added I assume
10:13 AM mozmck: JT-Shop: well I may do that.
10:14 AM JT-Shop: sounds like a good addition to the component
10:16 AM Joe_Hildreth: mozmck: Do you care if I provide these two files as a download to go along with the tutorial? More than happy to credit you. And these are for the 2.7 branch, correct?
10:17 AM mozmck: Those are for 2.7 - no problem with me if you distribute them. I should push them to linuxcnc actually.
10:19 AM Joe_Hildreth: If you push them, it would make it a little easier on the new folks that I am targeting with my series of tuts. If you do push them, would they be merged soon?
10:19 AM jthornton: mozmck: is there any reason to not add your fix to master?
10:19 AM Joe_Hildreth: Is there any way to get configure to work with master 2.8pre branch?
10:21 AM jthornton: I'm sure there is, I'm going to install lubuntu in the morning and work on it
10:22 AM Joe_Hildreth: Thank you John. I really appreciate the help and information you folks provide.
10:23 AM Joe_Hildreth: Do I understand correct, that you compile --withrealtime=uspace for either preempt_rt or simulation?
10:24 AM jthornton: I've never built a pure simulator without real time
10:25 AM Joe_Hildreth: okay, I am trying to cover as many scenarios (within reason) in the tutorial. For example, someone may want realtime and another just a simulator. Some may want to RIP and others an installable deb package, some 2.7 other 2.8pre for some feature.
10:27 AM jthornton: looks like 3 options with 2 suboptions sorta like my linuxcnc install page you can pick from 2.7, 2.7 buildbot or 2.8 buildbot
10:27 AM * jthornton notices lunch minute is over
10:29 AM Joe_Hildreth: John, you are talking about your uspace page, correct?
10:32 AM jthornton: yes
10:36 AM mozmck: jthornton: configure in master is a bit different. I think I did it there but I'll have to look later - I have to run for now.
10:40 AM Joe_Hildreth: Thanks John.
10:41 AM Joe_Hildreth: Thanks mozmck
11:37 AM Jymm: Loetmichel: I found out why... carbon steel knife for fire starting purposes
11:50 AM CaptHindsight: elmo40: it is a DLP/LCD resin printer controller board
11:51 AM CaptHindsight: mozmck: all those kids that learned Java in school in the 00's have to do something now :)
12:05 PM mozmck: CaptHindsight: yeah, or .NET, or now it's javascript...
12:33 PM AgentWD40: I'm planning my 7i96 based plasma table. I've made a wiring diagram as I understand it. Can you guys grade my diagram? I'm mainly concerend on how to properly wire the thcad and plasma machine. https://i.imgur.com/OnA3wXZ.png
12:35 PM AgentWD40: Also, would I need any circuit protection or resistors anywhere?
12:36 PM CaptHindsight: the power should be over current protected
12:36 PM Rab: AgentWD40, I know very little about plasma torch operation, but I believe you need very good grounding and possibly shielded wiring. So I recommend researching that.
12:37 PM CaptHindsight: 5V and 24V
12:37 PM Rab: Also, I don't see any provision for an estop.
12:37 PM JT-Shop: you should use 24v for I/O
12:38 PM JT-Shop: and don't mix logic power with I/O
12:38 PM AgentWD40: Rab, I have the shielded wire in hand. Forgot about the estop, will add.
12:40 PM AgentWD40: JT-Shop, can you expand on that? I would need another 24v power supply?
12:41 PM Rab: AgentWD40, unless you get better advice, I recommend star grounding everything (torch, drivers, wire shielding) directly to one point, probably the ground connection at the 120VAC power entry.
12:43 PM CaptHindsight: INPUT SHIELD The THCAD has an input shield that should be connected to frame ground on most systems. The input shield is the ground signal to a common mode RFI filter on the THCAD inputs
12:44 PM CaptHindsight: ^^ from the Mesa THCAD manual
12:44 PM AgentWD40: I read that, would frame ground be different than the single grounding point that Rab is talking about
12:44 PM Rab: You can ground to the control enclosure, but it may not be as direct or reliable as a wired star ground.
12:45 PM CaptHindsight: hard to go wrong with star..
12:45 PM CaptHindsight: unless it's not a star
12:46 PM Rab: (Of course the control enclosure needs to be connected to ground, at the same point as everything else.)
12:46 PM AgentWD40: So I had thought I would have a grounding post within the metal enclosure. Is this star grounding different?
12:47 PM Rab: AgentWD40, if you have a grounding post that all the components grounds connect to, that is a star ground.
12:48 PM Rab: Again, it's best to locate the post right next to the power entry ground, and have a good connection between them.
12:48 PM AgentWD40: Got it. What about the 24v and mixing of logic and power. I'm still unclear. The 7i96 doesn't have 24v field power like I saw on the 7i76. Do I need to step up the output voltage to the torch?
12:49 PM AgentWD40: by step up I mean transistors
12:49 PM AgentWD40: And would I need another 24v power supply
12:55 PM AgentWD40: Also, on the estop with respect to the torch, would it be sufficient to just open the start plasma circuit? Or are we talking estop that kills 240v to the plasma machine itself?
12:57 PM Rab: I think estop that both kills the torch and immobilizes the machine, so if something catches fire you don't risk dragging it around the table.
12:58 PM Rab: Or burning though energized wiring, turning a material fire into an electrical fire.
12:58 PM AgentWD40: I did figure estop would kill the motors
12:58 PM AgentWD40: But a plasma table is a material and electrical fire all in one!
12:59 PM AgentWD40: *tim allen grunt*
12:59 PM Rab: Sure, but the art lies in controlling the chaos.
01:00 PM AgentWD40: Okay, back to the star grounding. I would run 120v earth ground to my grounding post. To that I would also connect stepper driver ground pin?
01:01 PM Rab: Is there a separate case ground on the TB6600?
01:02 PM AgentWD40: I don't have it infront of me to check. I could always add a ground screw to the heat sink or something
01:02 PM AgentWD40: I really don't think it has a seperate case ground
01:04 PM boddax: arrived cheaper china 3020T cnc with bitsensor stm32 controller ..any experience with linuxcnc its supported?
01:05 PM boddax: usb controller , using this to pcb projects , there is any autoleveler with linuxcnc?
01:06 PM cpresser: boddax: this will most likely not work with linuxcnc
01:06 PM Rab: AgentWD40, TBH I'm not sure whether it's a good idea to connect 5V/24V GND to case ground. I haven't used the TB6600 or the 7i96.
01:07 PM cpresser: i assume the stm32 has a gcode interpreter and motion control implemented. but for a regular linuxcnc setup, both of those are run on the host PC
01:07 PM boddax: until now i have use selfmade with grbl ..dont know much with linuxcnc
01:08 PM boddax: better i dont know nothing about lkinuxcnc :)
01:09 PM boddax: have only usb port so i guess some hid interface
01:12 PM AgentWD40: Rab, the TB6600 has a metal case and it will be attached to the metal enclosure
01:12 PM cpresser: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?LinuxCNC_Supported_Hardware
01:12 PM cpresser: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?HardwareDesign#Why_not_use_a_micro_controller_over_USB_as_a_step_generator
01:14 PM boddax: thanks cpresser
01:14 PM * cpresser should bookmark that link :)
01:15 PM cpresser: boddax: depening on your application just stick with the stm32 based controller. I you are fed up with non existring documentation, are missing features or want to tinker switch to linuxcnc
01:18 PM Rab: AgentWD40, I think it's a good idea to run a ground lead from the case of each TB6600 directly to the grounding post, if only because CNC hardware in general and plasma in particular make for a really ugly EMI environment. But it could be overkill. ;)
01:19 PM AgentWD40: Rab, understood. I could simply add a lead under its case screw, or tap the heatsink
01:19 PM JT-Shop: AgentWD40: normally your inputs are 24vdc the 7i96 does take 3V-24V
01:20 PM Rab: It's also a high-vibration environment with a wide temperature range, so mounting fasteners can loosen or oxidize etc.
01:20 PM Rab: AgentWD40, sure.
01:20 PM AgentWD40: JT-Shop, regarding the output? My only output right now is to the torch start
01:21 PM JT-Shop: you get the power from the torch for that input?
01:21 PM JT-Shop: I think that is how mine is wired...
01:21 PM AgentWD40: JT-Shop: From what was said eariler, do I need a completely seperate 24v power supply to run the switches and inputs?
01:22 PM JT-Shop: well normally you use a larger power supply for the steppers like 60-80v so you can get the speed you need for thin materials
01:22 PM JT-Shop: nema 17 seems a bit small for a plasma unless it's super light...
01:22 PM AgentWD40: It is super light
01:22 PM JT-Shop: mine is nema 23 63v gecko 203v drives
01:23 PM JT-Shop: just do your math and make sure you can run at the speeds you need
01:24 PM * JT-Shop goes back to clearing away the jungle and checking on the chickens as they are making a racket
01:24 PM AgentWD40: Re my diagram https://i.imgur.com/OnA3wXZ.png does the torche's CPC wiring look all right?
01:30 PM AgentWD40: Ok, per the hypertherm manual, start plasma is a 15v circuit
01:31 PM AgentWD40: 120vac at the arcOK pins? Now this thing has me all confused
01:41 PM JT-Shop: your start circuit looks good, the whole drawing is very nice
01:43 PM JT-Shop: you may need to isolate the ArcOk signal
01:43 PM roycroft: so how would folks recommend mounting a 6" 3-jaw scroll chuck on a 6" rotary table?
01:43 PM roycroft: find places in the chuck to drill some through holes?
01:44 PM roycroft: it seems the scroll would be in the way almost everywhere
01:44 PM gregcnc: start with a front mount chuck?
01:58 PM Rab: roycroft, adapter plate? Maybe with a rail that slides into one of the t-slots on the table, integrating some clever expanding wedge screw thing that grips the slot.
02:03 PM Rab: Or maybe two t-shaped rails: one's fixed to the adapter plate, and has a T-shaped hole at the middle. The other rail slides in through the perpendicular t-slot. You reach in through the center of the chuck to fasten the rails together somehow and lock the whole contraption in place. Quick and easy installation/removal, reproducible initial centering.
02:04 PM roycroft: that could be interesting
02:04 PM Rab: Assuming this rotab has crossed t-slots, in the style of our forefathers.
02:04 PM roycroft: i was thinking that whatever i do i'll have to first index the rotary table to the spindle then index the chuck to the spindle
02:05 PM Rab: Yeah, I'm sure both steps will be needed unless the chuck is permanently mounted to the table.
02:05 PM Rab: Does it have a taper in the middle?
02:05 PM roycroft: yes, mt2
02:05 PM roycroft: the rotary table, that is
02:05 PM roycroft: https://www.grizzly.com/products/Grizzly-6-Rotary-Table-w-Div-Plates/H7527
02:05 PM roycroft: that's what i'm getting - it arrives today
02:05 PM roycroft: they put it on sale for the first time ever, right before the price gets jacked up again due to the new tariffs
02:06 PM roycroft: it's not the greatest, by any means, but for my little mill/drill it should be ok
02:06 PM Rab: Oh, the slots don't go through...never mind the rail business.
02:06 PM Tom_L: comes with all that shown?
02:06 PM roycroft: yes, tom_l
02:07 PM roycroft: a pretty good deal
02:07 PM pink_vampire: roycroft: I need one, let me know how it is
02:07 PM roycroft: i'm not sure i'll need the tailstock often if at all
02:07 PM Rab: But I think an adapter plate with keys for the slots would be a start.
02:07 PM JT-Shop: yea, better than what I got a few years back if the backlash is ok
02:07 PM roycroft: but i like that it comes with the dividing plates
02:07 PM roycroft: pink_vampire: it's grizzly
02:08 PM pink_vampire: also my G0704
02:08 PM roycroft: so i am pretty sure it will work pretty well
02:08 PM roycroft: the fit will be better than decent
02:08 PM pink_vampire: LOL like the rails on the g0704
02:08 PM roycroft: the finish will leave something to be desired
02:08 PM roycroft: it will likely be 85% as good as one costing 3x as much
02:08 PM pink_vampire: how is the backlash on it?
02:08 PM roycroft: it only has a 20 second vernier
02:09 PM roycroft: the better ones have a 10 second vernier
02:09 PM roycroft: i don't have it yet, so i don't know
02:09 PM JT-Shop: looks more compact than the one I got
02:09 PM roycroft: backlash isn't a big problem if you always turn it the same direction
02:09 PM roycroft: the sale price is really good
02:09 PM roycroft: and hang on a second - i'll see what shipping cost me
02:10 PM JT-Shop: oh mine is an 8" that's why it looks bigger
02:10 PM pink_vampire: roycroft: until you climb cut - then backlash is a big problem
02:10 PM roycroft: shipping was $22.99, so it was $302.94 including shipping
02:10 PM roycroft: most folks recommend avoiding climb cutting with a rotary table
02:11 PM roycroft: jt-shop: an 8" would be more useful but would not fit well on my machine
02:11 PM roycroft: which would be the same issue with pink_vampire's g0704
02:11 PM roycroft: 6" seems the biggest reasonable size to get for that class machine
02:11 PM roycroft: if i ever get a bridgeport class mill i'll probably want a 12" or so rotary table
02:12 PM roycroft: unless i cnc it from the get-go and don't do any manual machining
02:12 PM miss0r|office: 'evening
02:12 PM pink_vampire: so.. I have a part that i need to re make, and rotory table can be very good tool for that
02:12 PM pink_vampire: 4" will be fine for me
02:12 PM roycroft: i'm looking forward to figuring out how to do clever stuff manually machining with a rotary table
02:12 PM roycroft: i got a 4" rotary table years ago
02:12 PM pink_vampire: I have 5" machinist vise, but i love the 2" emco
02:13 PM roycroft: i found it too small to do anything useful, and sent it back right away
02:14 PM pink_vampire: I need to get a small boring head
02:14 PM roycroft: even the 6" one will be too small for some things, but i assume that if have parts that overhang the table that will be ok as long as i can mount them securely and take light passes when cutting anything not supported by the table
02:14 PM roycroft: and i'll probably use sacrifical tables anyway
02:14 PM roycroft: so i can do through machining
02:15 PM roycroft: nothing would stop me from mounting a 1/2" thick steel sacrificial table that's oversize to help support larger parts
02:15 PM pink_vampire: https://i.imgur.com/S3nhjkR.png
02:16 PM pink_vampire: this is the part I need to re-make https://i.imgur.com/kDxLLky.png
02:18 PM roycroft: https://www.grizzly.com/products/Grizzly-Boring-Head-Set-R-8/H5679
02:18 PM roycroft: i have that
02:18 PM roycroft: and it works fine
02:19 PM roycroft: it's a nice size for a small mill like yours
02:19 PM pink_vampire: those are cutter, or you need to braze the tip yourself?
02:19 PM roycroft: there are three cutters bundled with it
02:19 PM roycroft: they're not great, but they'll bore some holes for you
02:19 PM roycroft: until you buy some new ones
02:20 PM pink_vampire: I need it fur invert boring, to make round pins on stuff
02:20 PM pink_vampire: https://i.imgur.com/63keNJF.png like this part
02:21 PM pink_vampire: here I just cnc it over sized and file it to perfect fit
02:21 PM roycroft: you can't turn the boring bar around and turn it anti-clockwise
02:21 PM roycroft: that boring head is screwed onto the arbor
02:21 PM roycroft: it will unscrew itself if you turn it backwards
02:22 PM roycroft: so you'd need to buy your own/make your own boring bar
02:22 PM pink_vampire: you need a cutting edge on the other side
02:22 PM roycroft: right
02:22 PM miss0r|office: Would you guys know where I can aquire a 0.8755" reamer in europe?
02:22 PM roycroft: which, if you could turn the boring head backwards, would be accomplished by rotating the boring bar 180 degrees
02:22 PM pink_vampire: I need like 0-1/2" bore something very small
02:23 PM roycroft: why not just get the proper size reamer then?
02:24 PM pink_vampire: because you need to bore the pins abit over size to fit very old machine
02:30 PM methods_: miss0r|office: if you don't have to ream a lot of holes you could try an adjustable reamer
02:30 PM methods_: that way you don't have to try and track one down that exact size
02:31 PM methods_: i don't think i'd use an adj reamer though for a lot of holes
02:31 PM methods_: might be easier to find that for you over there than an oversize .875
02:32 PM roycroft: or you could use a boring head
02:54 PM miss0r|office: methods_: That might work, yeah
02:54 PM methods_: they work in a pinch
02:54 PM miss0r|office: roycroft: Sure. But the thing is, it is already installed into the flywheel mounted on the rear of an engine
02:55 PM miss0r|office: (it is a sintered bronze bushing)
02:55 PM DaViruz: miss0r|office: grind your own!
02:56 PM miss0r|office: DaViruz: Meh...
02:56 PM miss0r|office: :)
02:56 PM CaptHindsight: the play in the transmissions input shaft should take care of it
02:56 PM miss0r|office: CaptHindsight: In good time :]
02:57 PM CaptHindsight: just pump some grease in there :)
02:57 PM miss0r|office: yeah, no... :)
02:57 PM miss0r|office: that is just a sure fire way of breaking a sintered bearing :D
02:58 PM syyl_: "just pump grease in" is a good way to break a lot of things :D
02:59 PM miss0r|office: syyl_: the macdonalds slogan
02:59 PM syyl_: lol
02:59 PM miss0r|office: Well, I haven't actualy measured the ID of the bearing after installing it yet. The workshop manual just tells me to ream it.
03:00 PM miss0r|office: and tomorrow I am going to install the new engine so... I guess it'll be make or break by then
03:02 PM miss0r|office: syyl_: This is what it looks like now, I'm quite pleased might I add: https://imgur.com/a/jGfJeQz
03:02 PM miss0r|office: please note that the oil filter&filter mount is there temporarily
03:02 PM syyl_: is just wanted to be a smartass and point that out ;)
03:02 PM miss0r|office: Somehow I saw that comming ;)
03:03 PM syyl_: and because i know nothing about car engines, that would have been the only thing i could do ;)
03:03 PM syyl_: and: nice blue
03:03 PM miss0r|office: thank you
03:03 PM miss0r|office: Next time I use the primer for that particular paint, I will have a better ventilated area...!
03:04 PM miss0r|office: Must be some good stuff in there
03:04 PM CaptHindsight: that is only 1/2 an engine :)
03:04 PM syyl_: that means it works
03:04 PM DaViruz: miss0r|office: ferguson tractor engine?
03:04 PM DaViruz: can't quite make it out
03:04 PM CaptHindsight: you'd get beat up for bring that to a car rally around here :)
03:04 PM miss0r|office: not all engines need 8 cylinders, CaptHindsight
03:04 PM syyl_: or as sync says, "lots of cancer in it"
03:04 PM miss0r|office: DaViruz: Almost the same; a 1972 2.25l series 3 land rover
03:05 PM CaptHindsight: oh I see you purchased the wrong car
03:05 PM CaptHindsight: land cruiser, not rover :)
03:05 PM jthornton: that doesn't look anything like a continental engine that would be in a fergson
03:05 PM miss0r|office: CaptHindsight: Not realy :)
03:06 PM jthornton: miss0r|office: looking real good!
03:06 PM CaptHindsight: miss0r|office: total body restore as well?
03:06 PM miss0r|office: CaptHindsight: well, chassis restore. The body will be this summer
03:07 PM miss0r|office: CaptHindsight: The underside: https://imgur.com/a/HClENpw
03:07 PM * jthornton should go work on something...
03:07 PM miss0r|office: The gearbox is next on the list
03:08 PM jthornton: what is the yellow wire over the rear end?
03:09 PM miss0r|office: that the cobber line for the brakes
03:09 PM DaViruz: brake line?
03:09 PM miss0r|office: comes out yellow
03:09 PM jthornton: ah, looked like a wire
03:10 PM DaViruz: that doesn't look anything like a wire
03:10 PM jthornton: is it copper?
03:10 PM miss0r|office: yeah
03:10 PM jthornton: you probably have better eyes than I do lol
03:11 PM miss0r|office: your screen might be off
03:11 PM jthornton: yea I don't doubt that
03:12 PM jthornton: it's a HP monitor lol
03:12 PM miss0r|office: well, there you have it :P
03:13 PM jthornton: I think I'll go wire up an outlet in the new coop for the automagic door and cameras
03:17 PM miss0r|office: syyl_: You interrested in a die sink edm?
03:20 PM miss0r|office: methods_: Thinking about it; the bushing is too close to a blind hole to allow for an ajustable reamer. atleast any design I know of
03:21 PM methods_: ah ok
03:21 PM methods_: well that sucks
03:22 PM methods_: ebay one then?
03:22 PM miss0r|office: yeah.. Hoping to somehow fine one locally tomorrow :D
03:22 PM miss0r|office: -e+d
03:23 PM syyl_: i am probably buying one, miss0r|office
03:23 PM methods_: 22.1 reamer and go real slow?
03:23 PM syyl_: a friend has a tiny manual sinker edm for sale
03:23 PM miss0r|office: syyl_: ahh alright. otherwise I would offer you one from my friends shop, local to me
03:23 PM syyl_: :D
03:24 PM syyl_: thanks
03:24 PM methods_: you should be able to find a 22.1 or 22.2 reamer local right?
03:24 PM miss0r|office: methods_: I guess. but I would realy love to get the proper one
03:25 PM miss0r|office: syyl_: Although, the control cabinet for this one is ridiculous :) its a full size 19" rack
03:25 PM miss0r|office: same machine I have, a charmilles eleroda with a P25 driver
03:26 PM miss0r|office: methods_: and by prober, I mean 0.8755" on the dot :D
03:26 PM methods_: sure
03:26 PM methods_: that would be preferrable
03:27 PM miss0r|office: plenty available from ebay overseas
03:28 PM miss0r|office: but that will not land it here tomorrow :) no matter how bad I want it
03:30 PM methods_: buy me a plane ticket i'll grab one from the tool crib
03:30 PM miss0r|office: I'm almost tempted :)
03:30 PM methods_: :p
03:30 PM miss0r|office: theres always the chance that everything will just fit
03:31 PM miss0r|office: I'll have to take a proper measurement tomorrow to see if it is needed
03:50 PM Deejay: gn8
04:02 PM JT-Shop: miss0r|office: was that not the proper bushing or is that a factory procedure to ream after installing it?
04:02 PM miss0r|office: JT-Shop: The factory workshop manual tells you to ream it after installing
04:03 PM miss0r|office: but that manual is 50 years old...
04:03 PM JT-Shop: ah, poor quality control back then
04:03 PM miss0r|office: the newer bushings might hold tolerances after installation, as I mentioned; I have not actualy measured it after I installed it
04:03 PM JT-Shop: I assume your talking about the pilot shaft bushing in the centre of the flywheel?
04:03 PM miss0r|office: yeah
04:04 PM JT-Shop: I learned about them the hard way a long time ago
04:04 PM miss0r|office: how so?
04:04 PM JT-Shop: guy at the junk yard gave me one the second time I showed up to buy gears for the transmission
04:05 PM JT-Shop: tore up two cluster gears
04:05 PM miss0r|office: damn
04:05 PM JT-Shop: but that was a very long time ago and I had to walk down the hwy to the junk yard with the broken parts in my hand then walk back then fix it
04:06 PM miss0r|office: lol :D
04:06 PM JT-Shop: probably around 73 or so
04:06 PM miss0r|office: back then my land rover was still new :D
04:06 PM JT-Shop: while I worked on the car I'd walk 4 miles to work everyday and back home
04:07 PM JT-Shop: that was a 65 mustang with bench seat and stick shift on the floor, paid $250 for it
04:07 PM miss0r|office: nice
04:08 PM miss0r|office: I bought my land rover for two cases of beer and a bottle of whiskey
04:08 PM JT-Shop: yea wish I still had the two mustangs
04:08 PM JT-Shop: nice
04:08 PM JT-Shop: good whiskey?
04:08 PM miss0r|office: nope
04:08 PM miss0r|office: :)
04:08 PM JT-Shop: lol
04:08 PM JT-Shop: all right I'm all rested up back to being an electrician
04:09 PM miss0r|office: have a good one. I need my sleep so I can do landrover stuff tomorrow
04:29 PM sync: miss0r|office: rip the bushing out, it will fail
04:30 PM miss0r|office: yeah, better not to have one at all :P
04:30 PM sync: and replace it with a brass one
04:30 PM sync: the sintered ones are known to fail very quickly
04:30 PM miss0r|office: hah...
04:30 PM miss0r|office: I guess I will make a brass replacement for it then
04:30 PM miss0r|office: anyway. its waay over my bedtime, I will get going thanks
04:31 PM sync: the problem is the joke of a bearing arrangement in the gearbox
04:35 PM mozmck: JT-Shop: here's what I was thinking for the time component: https://pastebin.com/c3EH4uf8
04:38 PM elmo40: CaptHindsight, why does an LCD resin board need X and Y?
04:41 PM roycroft: just pour some babbit and be done with it
04:41 PM roycroft: babbitt, rather
04:44 PM JT-Shop: mozmck: looks good to me!
04:44 PM mozmck: I'll test it and see how it works.
04:44 PM JT-Shop: when paused it does not reset, perfect
04:44 PM mozmck: Yeah, that's my idea.
04:45 PM * JT-Shop tips his hat to mozmck
05:02 PM Tom_L: is that for things like runtime or machine run hours etc?
05:20 PM jthornton: part time
07:02 PM CaptHindsight: elmo40: are you referring to this board? http://www.cbd-3d.com/en/prod/dlp.shtml
07:08 PM CaptHindsight: elmo40: if so, then besides the Z-axis, there are motors to level the build platform and also wipers for the vat or pumps
07:09 PM CaptHindsight: elmo40: resin printers will also use one projector or galvo head on a z-axis and then move the vat or build platform over a larger XY area
07:20 PM Tom_L: mozmck, jthornton, could that change be put in 2.7? since run from here is broke in 2.8 i haven't been using it much
07:21 PM Tom_L: right now i'm running a 'current tool' and overall time but that would be a nice addition
07:56 PM pink_vampire: any idea where can get a quiet motor for my band saw?
07:57 PM pink_vampire: I was trying now to use a motor from a fan, but it is not strong enough
07:57 PM pink_vampire: even with 1:10 belt
07:57 PM Tom_L: how big?
07:58 PM CaptHindsight: big enough to run the saw :)
07:58 PM pink_vampire: box fan
07:58 PM Tom_L: must be AC?
07:59 PM pink_vampire: my cordless drill drive it, but i want something more permanent
07:59 PM CaptHindsight: http://www.surplusindustrialsupply.com/motors-mot.html?cat=124&dir=asc&order=price
08:01 PM CaptHindsight: what frame size? how many HP?
08:01 PM CaptHindsight: 120VAC?
08:01 PM pink_vampire: I'm sure the motor from the power hacksaw can drive it, but it is cast iron body, and the bandsaw is too flimsy to support the wight
08:01 PM CaptHindsight: these are all specs one must know
08:02 PM Tom_L: the specs change as the data is input
08:02 PM CaptHindsight: easier questions are : How much beer should I bring for two people?
08:02 PM pink_vampire: the original motor is 120V 6A
08:03 PM Tom_L: and you're not happy with it?
08:03 PM pink_vampire: noisy as hell
08:04 PM CaptHindsight: band saws tend to make sounds as they cut
08:04 PM pink_vampire: but the noise is pure from the motor
08:05 PM CaptHindsight: maybe the blade is not tight enough or sharp?
08:05 PM Tom_L: get some pedals off an antique sewing machine
08:05 PM pink_vampire: with the cordless drill it is not that of a problem
08:05 PM pink_vampire: Tom_L: LOL
08:05 PM roycroft: i think an 8" rotary table would have fit ok on my little mill
08:06 PM roycroft: but it would have been an lot taller than the 6"
08:06 PM roycroft: so what i got is probably ideal for my machine
08:06 PM Tom_L: roycroft, ready to trade it in already?
08:06 PM roycroft: no
08:06 PM roycroft: i haven't even cleaned the cosmoline off of it yet
08:06 PM Tom_L: how's the slop in it?
08:07 PM roycroft: i'll know better when it's cleaned up and lubed properly
08:07 PM roycroft: but it doesn't seem terrible at first go
08:07 PM roycroft: my only immediate concerns are:
08:07 PM CaptHindsight: roycroft: how much beer do you bring for two people?
08:07 PM roycroft: 1. the "freehweel" lever kicks over easily while cranking it
08:07 PM roycroft: but again, it's full of cosmoline and that problem will likely go away when i clean it up
08:07 PM roycroft: 2. the vernier scale is on the side when the table sits horizontally
08:08 PM roycroft: it is on the top when it's vertical
08:08 PM roycroft: but when it's horizontal it's kind of hard to read
08:08 PM roycroft: capthindsight: i don't bring beer often
08:08 PM roycroft: people come to my place when they want to drink my beer :)
08:08 PM Tom_L: CaptHindsight, an odd number
08:09 PM roycroft: but if i were to bring beer for two people, i'd probably bring a growler or so, depending on the beer and the situation
08:09 PM CaptHindsight: big or small growler?
08:09 PM CaptHindsight: or did they standardize them?
08:10 PM roycroft: growler size :)
08:10 PM roycroft: a growler is about 2L
08:10 PM roycroft: i've never measured, if i'm honest
08:11 PM CaptHindsight: same here :)
08:11 PM roycroft: when serving an unblended beverage, measurement is not necessary
08:11 PM roycroft: just fill and pour
08:11 PM CaptHindsight: i don't even measure scotch
08:12 PM roycroft: i know how much a wee dram is
08:12 PM roycroft: and i pour that much plus a wee bit more
08:12 PM roycroft: anyway, i may not get back to the rotary table for a while - i'm finishing a fabrication project
08:12 PM roycroft: and that sale ends in a few days
08:12 PM roycroft: i just thought i would report my first impressions
08:13 PM roycroft: and i think it will work fine, and is probably a good value
08:13 PM CaptHindsight: who seels new old stock PC mainboards and processors?
08:13 PM CaptHindsight: sells even
08:13 PM * roycroft heads off to dinner with some friends
08:13 PM CaptHindsight: have fun
08:13 PM Tom_L: if i had an immediate need for one i might get one
08:14 PM Tom_L: looks like a good deal
08:35 PM enleth: https://i.imgur.com/PBNVean.jpg finally got the mounting base for the robot welded and prepped for painting
08:36 PM enleth: 220x220cm (over 7x7ft), 120mm square tubing
09:07 PM CaptHindsight: enleth: which bot?
09:20 PM jym: CaptHindsight: Rockin-Sockem-RoBOT
10:35 PM flyback is now known as f1yback
10:35 PM f1yback is now known as flyback
10:57 PM enleth: CaptHindsight: KUKA KR200, https://i.imgur.com/K7Uubx1.jpg
10:59 PM roycroft: hey folks
10:59 PM roycroft: so, out of the box, still smothered in cosmoline, and not tuned up at all, the rotary table has 6 minutes of backlash
11:00 PM roycroft: i have no idea if i can easily improve on that
11:00 PM roycroft: i actually have no idea if that's considered decently tight or if it's considered sloppy
11:00 PM roycroft: but that's what it is
11:05 PM enleth: https://i.imgur.com/E6Y4RHb.jpg and it's painted
11:05 PM enleth: PPG SigmaFast 205 two-part epoxy coating, expensive and a huge PITA to work with but the results are worth the effort
11:06 PM enleth: http://camera.waw.hackerspace.pl/100CANON/IMG_8860.JPG got some bandsaw parts cleaned and repainted at the same time
11:06 PM enleth: wait, not that URL, that's not public
11:07 PM enleth: https://i.imgur.com/3BM50xW.jpg this one
11:07 PM roycroft: looks nice
11:07 PM roycroft: i used to use ppg products all the time, but the local ppg shop decided one day that i'm not a "professional" painter and doubled my price on everything
11:08 PM roycroft: it's too bad - i like their products
11:09 PM roycroft: my belt grinder stand is standing now
11:09 PM enleth: I'm ordering it online and the local distributor actually has an enormously large supply of SigmaFast 205 in RAL 7001 with a 30% discount
11:09 PM roycroft: i still have a half dozen frame parts to weld up
11:09 PM enleth: I suppose they had a large order prepared and the customer bailed out or something
11:09 PM roycroft: but it is 3 dimensional now
11:10 PM enleth: and they need to get rid of it now
11:10 PM roycroft: that's usually what happens
11:10 PM roycroft: and now they're trying to dump it at a good profit instead of an obscene profit
11:10 PM enleth: it's a nice bluish-gray, good for anything
11:10 PM roycroft: yeah, that's a nice color
11:11 PM enleth: and that paint works well on steel and concrete, so I'm putting it on the floor as well
11:11 PM roycroft: i do a fair amount of painting with a greenish-grey that volkswagen and porsche use(d) on their fuel injection plumbing
11:12 PM roycroft: i'm painting my belt grinder what i call chocolate brown
11:12 PM roycroft: and the stand for it will be a muted dark green
11:12 PM roycroft: i'm putting a 1/4" steel plate top on the stand, and that will be left unpainted
11:13 PM pink_vampire: that was a good day
11:13 PM enleth: I'm definitely not willing to keep more than one set of two-part paint, so everything's going to be RAL 7001 until that huge bucket runs out
11:13 PM roycroft: yes, i understand that, enleth
11:13 PM roycroft: did you see my comments above about the rotary table, pink_vampire?
11:14 PM enleth: I mean, I could use it as a primer and paint over it with a different color, but that's effort
11:15 PM enleth: I'm already fed up with painting for quite some time, prepping that frame was a very boring and stinky endeavour, I ran out of kerosene so I had to use automotive gasoline as a degreaser first, then isopropyl alcohol to clean off any residue from the gasoline
11:15 PM roycroft: i mostly used dar when i was shooting ppg
11:16 PM roycroft: it's a single stage polyurethane enamel
11:17 PM enleth: I wish I had a paint gun that can handle this epoxy, but I had to use a brush here
11:19 PM enleth: roycroft: does the polyurethane use such a nasty mix of solvents for thinning too?
11:20 PM roycroft: slightly nasty
11:20 PM roycroft: not as bad as most epoxies
11:20 PM roycroft: or things like imron
11:21 PM enleth: the thinner they recommend for the epoxy is a mix of xylene, toluene, methanol, butyl acetate and methyl acetate
11:22 PM roycroft: so i'm reading that 2-3 minutes of backlash is typical for high-end rotary table
11:22 PM roycroft: and that it's pretty easy to tighten them up
11:23 PM roycroft: so 6 minutes out of the box for the grizzly i just got seems pretty decent
11:23 PM enleth: one end of the worm might be mounted in an eccentric bushing that can be adjusted
11:24 PM roycroft: i have the msds sheets for the paint and the reducer somewhere, but i can't locate them at the moment
11:24 PM roycroft: dar also requires a hardner
11:25 PM roycroft: it's not an epoxy per se, but it does need reducer and hardner
11:26 PM enleth: I'm using 3M 6051 filters for the above mix and it does and excellent job, but when it snagged as I leaned over something and lifted the mask off my face, I literlly had to run out of the room to catch a breath
11:26 PM roycroft: yeah, dar isn't that bad
11:26 PM roycroft: imron is
11:26 PM roycroft: i think if you take a single sniff of imron you suffer brain damage :(
11:27 PM roycroft: maybe that's why it's banned in many states
11:27 PM enleth: it's not even a matter of using the filers so you don't get cancer 10 years from now, you just can't breathe without them if using this stuff indoors
11:27 PM enleth: *filters
11:34 PM roycroft: i don't like painting
11:34 PM roycroft: i like the results though
11:34 PM roycroft: and i do like mixing paint to make custom colors