#linuxcnc Logs
Jul 06 2018
#linuxcnc Calendar
12:32 AM IchGucksLive: morning from germany
12:38 AM IchGucksLive: im off
01:58 AM Deejay: moin
02:30 AM gloops: good football today, France v Uruguay Belgium v Brazil
07:06 AM IchGucksLive: hi all
07:07 AM IchGucksLive: hat is back in southwest germany
07:07 AM IchGucksLive: head
07:07 AM IchGucksLive: heat
07:07 AM IchGucksLive: whatever you call it LOL
07:12 AM IchGucksLive: im off till later folks
07:13 AM IchGucksLive: gloops, silverston live
11:09 AM fragalot: Harroh
11:14 AM Wolf__: morning, or afternoon or something
11:19 AM fragalot: let's go with evening
11:39 AM IchGucksLive: hi all
11:40 AM IchGucksLive: gloops, FR is at the next level
11:40 AM IchGucksLive: gloops, HAM did hold back today
11:40 AM gloops: yes i think France are the team to beat
11:41 AM fragalot: Today, I learned about Polacolor filters
11:41 AM gloops: Belgium could beat Brazil
11:41 AM gloops: polarised colour?
11:41 AM IchGucksLive: fragalot, good for laser
11:42 AM IchGucksLive: fragalot, and lots of scanner Mediatech work that way
11:43 AM gloops: theres a chance that England could play France or Belgium in the final - all neighbours, world cup and 2 teams in the final next door
11:44 AM fragalot: gloops: yes, similar to a standard polarizing filter, except it affects one color only
11:45 AM IchGucksLive: fragalot, use off
11:45 AM gloops: ive got various cpls and some linear, tbh i never used them a lot
11:45 AM fragalot: gloops: Cokin P162 for example is a blue one
11:45 AM IchGucksLive: gloops, since yesterday all prices cncrrelated climb
11:45 AM fragalot: I might get one to see
11:46 AM IchGucksLive: HGH20 rail set 450Euros now from $20 Monday
11:47 AM gloops: 450 set for 20?
11:48 AM gloops: fragalot thats the thing with photography its all about the GEAR lol
11:51 AM fragalot: :-)
11:51 AM gloops: i got 1 piece of 100mm box section today, bloke had 2 2metre lengths, i asked if he was throwing them out - he said take 1 if you want 1
11:51 AM gloops: 1! he kept 1 lol
11:52 AM gloops: it will still be there going rusty in 5 years
11:52 AM IchGucksLive: gloops, monday 420 Euro &rail HGH20 incl Ballscrew now it is 450 at almost all BAY shops
11:52 AM gloops: ahh
11:53 AM IchGucksLive: gloops, but the BOSCH AL profile rails gone down from 175Euros to 135.- 12meter Cut
11:54 AM gloops: well, i wont be building anything cnc for a while
11:54 AM IchGucksLive: gloops, i got 5 orders from the mashine i did move last wendsday
11:54 AM gloops: see, it worked out well Ichs
11:55 AM IchGucksLive: some schools dident belive i guess
11:56 AM gloops: i better go and do a few things, want to watch the belgium game
11:59 AM IchGucksLive: Wolf__, i did the first test on the low cost Education plasma
11:59 AM Wolf__: nice
11:59 AM IchGucksLive: Wolf__, complete including cutter 680Euros
11:59 AM IchGucksLive: let me upoad a video
12:01 PM fragalot: That's an impressive price point
12:02 PM fragalot: IchGucksLive: what size is it?
12:02 PM IchGucksLive: 510x510
12:02 PM fragalot: pictures? :D
12:03 PM IchGucksLive: VIDEO -> https://youtu.be/AXJYjE2y1lo
12:03 PM IchGucksLive: Wolf__, you get it 2
12:04 PM Wolf__: watching now
12:04 PM IchGucksLive: Plasma is a 275 S-cut
12:05 PM IchGucksLive: S-cut 50A 275 Euros including shipment
12:06 PM IchGucksLive: its a Trapezional LM16UU system
12:06 PM IchGucksLive: you can save even more if you curt the 60Euros pulling
12:07 PM IchGucksLive: but i dont like direct mount
12:08 PM IchGucksLive: 12x LM16UU at 26Euros for liniar bearing
12:08 PM IchGucksLive: 3x TB6600 at 8,5 etch
12:10 PM IchGucksLive: Wolf__, crap ?
12:10 PM Wolf__: for budget build looks good
12:10 PM IchGucksLive: workes fine up to 5mm
12:10 PM IchGucksLive: its low speed max 600mm/min
12:11 PM IchGucksLive: 1,9Nm at 24V
12:11 PM IchGucksLive: now i woudt go 48V DM556
12:12 PM IchGucksLive: then it shout move near 5m/min
12:12 PM IchGucksLive: but it ads 150 euros
12:13 PM IchGucksLive: fragalot, how does it look for you
12:13 PM IchGucksLive: this is ofcause lowest level you can go
12:13 PM IchGucksLive: lower woudt be TB6560
12:14 PM fragalot: IchGucksLive: looks pretty good for the price in my opinion
12:14 PM IchGucksLive: <- SMILES
12:14 PM fragalot: if I had the space I'd probably buy it
12:14 PM Wolf__: i’ll be using 3Nm nema23 @36v for my build, but its going to be a rail style w/ arm
12:14 PM IchGucksLive: i do not sell only build for education
12:15 PM IchGucksLive: Wolf__, go 48V
12:15 PM IchGucksLive: 500W one psu
12:16 PM IchGucksLive: Wolf__, i discoverd at digital Driver there is less emi fail
12:16 PM IchGucksLive: Wolf__, where in the world are you
12:16 PM Wolf__: usa
12:17 PM Deejay: re
12:17 PM Wolf__: I have https://www.aliexpress.com/item/3-Axis-Nema23-57-stepping-motor-57BYGH112-2-phase-425oz-in-112mm-3A-Plastic-Metal-cnc/32822080023.html sitting already
12:17 PM Wolf__: least I think thats it, not sure if its the same drivers
12:18 PM fragalot: IchGucksLive: it'd be educational for me as i've never owned a cnc plasma. :P :P
12:20 PM IchGucksLive: Wolf__, steppes are perfect
12:20 PM IchGucksLive: Wolf__, seatch for DM556d
12:21 PM Wolf__: mb45a drivers
12:21 PM Wolf__: https://i.imgur.com/Mfk4r3h.jpg been sitting for 3yrs waiting for project
12:22 PM Wolf__: MB450A *
12:23 PM IchGucksLive: Wolf__, there is nothing wrong with it
12:24 PM IchGucksLive: Wolf__, all i say is analog drivers got some wear if the hight is not correct at firering
12:25 PM IchGucksLive: while the DM ones dont show this even at 10mm firering and moving into the part
12:25 PM IchGucksLive: i got all tested in the shop
12:25 PM Wolf__: I’ll keep that in mind
12:26 PM IchGucksLive: M542 Tb6600 MH860 Against the Real DM556d
12:26 PM IchGucksLive: i dont have a T version as it is maybe only the RS232 missing
12:27 PM IchGucksLive: but the real ones correct the Amps very good without tuning
12:27 PM IchGucksLive: and they run 3times the speed
12:27 PM IchGucksLive: on the same setup
12:28 PM IchGucksLive: all i can say
12:28 PM IchGucksLive: hi Joe_Hildreth
12:28 PM Joe_Hildreth: Howdy IchGucksLive
12:29 PM IchGucksLive: how is it in tennesie
12:29 PM IchGucksLive: im in germany
12:29 PM Joe_Hildreth: Have a question of parallel ports. As I understand IEEE 1284 defines two operating modes for the parallel port, EPP and ECP. I have two questions.
12:30 PM Joe_Hildreth: It is hot and humid and raining today. :-(
12:30 PM Joe_Hildreth: How about Germany?
12:30 PM IchGucksLive: bright sunshine
12:31 PM Joe_Hildreth: Does this mean that a port supports both modes and it is a matter of selecting which mode, or are ports sold as one or the other EPP or ECP?
12:31 PM Joe_Hildreth: Second question, does LCNC really care what mode the port is run in, EPP or ECP?
12:32 PM Joe_Hildreth: I am working on my next installment of CNC for the home hobbyist and this one is about I/O options.
12:32 PM jesseg: Joe_Hildreth, well the early SPP (Standard Printer Port) didn't support either. Then some chipsets came out that supported one, or both. or maybe other standards. Nowdays I'd guess that all of them support most of the common standards.
12:33 PM jesseg: Joe_Hildreth, are you communicating with an FPGA or just driving steppers with a dumb stepper driver?
12:33 PM Joe_Hildreth: From a hobbyist point of view, where money is an issue. I suspect that the computer being put in use will be no older than 10 years.
12:33 PM IchGucksLive: Joe_Hildreth, EPP is up to 1Mbit
12:34 PM Joe_Hildreth: Steppers with software stepping.
12:34 PM IchGucksLive: Joe_Hildreth, while ecp is better for centronic devices
12:34 PM jesseg: A lot of the advances were for the purpose of higher speed bi directional DMA controlled data transfer I think
12:34 PM IchGucksLive: Joe_Hildreth, EPP is best to set and you can go easy 30000 steps per second
12:34 PM Wolf__: lol I think one of my Lcnc machines is over 14yrs old
12:35 PM Joe_Hildreth: If the computer has an onboard PP, would it most likely support both modes?
12:35 PM jesseg: well I gotta run, cya all later :D
12:35 PM Joe_Hildreth: CYA jesseg
12:35 PM IchGucksLive: Joe_Hildreth, i build around 100 mashines a year and all are fine
12:35 PM IchGucksLive: and ofcause 95 of this are on parport
12:36 PM IchGucksLive: depending on setup and precision 12m/min
12:36 PM Joe_Hildreth: That is my gut feeling, if it has an onboard PP then it is probably just fine. The LCNC documentation does not talk about EPP or ECP ports
12:36 PM IchGucksLive: or easy 5m/min at 0,01mm precision
12:36 PM Joe_Hildreth: phone, brb
12:37 PM IchGucksLive: Joe_Hildreth, parport is standard set to EPP
12:37 PM Wolf__: fail I was wrong, 2007 build
12:37 PM IchGucksLive: im off BYE Gn8 from Germany
12:37 PM Wolf__: running step gen moving my mini mill
12:38 PM Joe_Hildreth: back ... thanks IchGucksLive
12:39 PM Joe_Hildreth: I guess my biggest question: Does the onboard parallel port support both EPP and ECP or are they typically on or the other?
12:40 PM Joe_Hildreth: Wolf: The episode I am working on is a general discussion of the I/O options available for LCNC. These videos are targeted towards new users. Here is the playlist of what I have completed ...
12:41 PM Joe_Hildreth: https://www.youtube.com/playlist?list=PLaamliiI72ntlrHKIFjh2VjmehRGgZpjm
12:42 PM Joe_Hildreth: I intend to talk briefly about Uspace and Ethernet driven cards, PCI, PCIe addon cards and the parallel port. Will focus on the parallel port simply because everyone has access to it and to but them are cheap and is the simplest way for someone to learn the system with.
12:43 PM Wolf__: maybe pcw_home can answer some of that
12:43 PM Wolf__: really its starting to get harder to find cheap mobo that have parallel ports
12:44 PM Joe_Hildreth: pcw_home has given me some great help in the past.
12:44 PM Joe_Hildreth: True, but parallel port add on cards are still plentiful and cheap.
12:45 PM Wolf__: my last build was a mini itx so no room for cards lol
12:45 PM Joe_Hildreth: On board PP or using ETH or something else?
12:47 PM Wolf__: has onboard pp but I’m leaning towards mesa ETH https://i.imgur.com/T9rvLuU.jpg (12” level for scale)
12:49 PM Wolf__: plus the jitter and latency is a bit high for doing step gen on it
12:49 PM Joe_Hildreth: Gotcha. What size is that Stepper, looks like a 600 oz-in or so. What are your driving?
12:49 PM Wolf__: thats a 700w 190v servo
12:50 PM Wolf__: I have a stack of nema 23 4Nm that are going on a cnc plasma and X2 mini mill build
12:50 PM Joe_Hildreth: ok. I have no experience with servos.
12:51 PM Wolf__: I dont either =D
12:51 PM Joe_Hildreth: hahaha
12:51 PM Joe_Hildreth: so there are two type correct. Step driven servos and PWM servos? That sound right?
12:53 PM Wolf__: I blindly ordered a bunch of surplus stuff off ebay back in ’04 thinking I was going to do a router build, never did it because the how to info wasn’t quite like it is now, these are analog drivers w/ the servos I have
12:53 PM Wolf__: https://i.imgur.com/EOp8e4l.jpg
12:53 PM gloops: Belgium v Brazil!
12:54 PM * fragalot is looking for a little adapter plate to turn his tripod into an arca swiss compatible one
12:54 PM Wolf__: the step driven servos I think are mostly the closed loop standalone?
12:55 PM gloops: fragalot print a quick release fitting
12:55 PM fragalot: gloops: not sure if I want to put a €6000 camera assembly onto a 3D printed part
12:55 PM fragalot: the tripod already has a quick-release
12:56 PM fragalot: but I need a spacer so my black widow belt holster adapter plate works on it
12:56 PM Joe_Hildreth: I am on my second router build. http://www.myheap.com/images/stories/cnc_stuff/KRMx01_CNC/upgrades/07_DressingTheStand/DressingTheStand_02.jpg
12:56 PM gloops: 6000 quid - only acceptable if youre doing weddings
12:56 PM fragalot: and the adapter plate is acra compatible
12:56 PM Wolf__: ^ keep in mind most quick release are cams, really good at crushing 3d prints
12:56 PM gloops: well mill an ally one then
12:56 PM fragalot: gloops: I would if I wasn't going to go on holiday before the damn RF45 is put together again :D
12:57 PM Wolf__: nice Joe_Hildreth, that thing looks like a beast
12:58 PM gloops: any give in the z axis Joe_Hildreth?
12:59 PM Joe_Hildreth: It has a 38" x 42" cut area. It does what I need it to do. But I am really still a newbie in a lot of ways.
12:59 PM Wolf__: toy sized https://i.imgur.com/0ZSHCTT.jpg
01:00 PM Joe_Hildreth: There is some give on very heavy cuts. There are modifications I want to make to the machine to make it more rigid, but it is primarily used on wood and plastic.
01:01 PM gloops: hmm, cant really see what kind of beam for the gantry, but z travel looks quite a lot - gantry/bearings need to be stiff for that
01:02 PM Joe_Hildreth: Toy sized or not, at least you can mill metal. I can take light cuts on Aluminum but that is about it.
01:02 PM Joe_Hildreth: http://www.myheap.com/images/stories/cnc_stuff/KRMx01_CNC/upgrades/07_DressingTheStand/DressingTheStand_01.jpg
01:02 PM Wolf__: that x1 micro mill can do massive 0.2mm doc
01:03 PM Wolf__: its not solid what so ever lol
01:03 PM Joe_Hildreth: Here is the build log: http://www.myheap.com/cnc-stuff/krmx01-cnc-router/krmx01-build-log.html
01:05 PM Joe_Hildreth: I have a Burke #4 milling machine that I need to recondition. It is a late 40's model I think. Horizontal but better than nothing. I have an Atlas 10F. between the two, I am hoping to make some modifications to the machine that I built to make it more rigid
01:05 PM Joe_Hildreth: and replace the router with a spindle.
01:06 PM Wolf__: I picked this up over the winter, https://i.imgur.com/0r177E3.jpg ‘80s era Jet mill and Enco 12x37, hell of a upgrade from the harbor freight micro mill and 7x10 lathe =)
01:15 PM Joe_Hildreth: NICE. Would love to have a vertical mill and a heavier lathe than my Atlas 10F 10x36
01:17 PM Deejay: re
01:17 PM Motioncontrol: excuse one questio g41 or g42 not fuction in g19 plane, i have error : tool compensation use only in plane xy and xz ?
01:25 PM Joe_Hildreth: have to run. CYA
01:32 PM gloops: wow, superb goal! Belgium 2 Brazil 0 !
01:57 PM Tecan: is there a good gear calculator for linux ?
02:02 PM gloops: there are some simple gear calculators you can use on the web, what kind of gears?
02:03 PM fragalot: Tecan: http://woodgears.ca/gear_cutting/index.html works well enough for simple gears
02:03 PM Tecan: im not picky, but i would like to convert 15 rpm to 4 rpm
02:04 PM gloops: whats this for Tecan? spindle?
02:10 PM gloops: https://geargenerator.com/#200,200,100,6,1,0,0,4,1,8,2,4,27,-90,0,0,16,4,4,27,-60,1,1,12,1,12,20,-60,2,0,60,5,12,20,0,0,0,2,-563
02:27 PM Wolf__: 4rpm spindle would have to be one hell big cutter =P
02:28 PM fragalot: :D
02:28 PM gloops: i didnt mean a cuttin spindle per se
02:28 PM Tecan: blender has a nice gear plugin but its lacking the rpm conversion
02:29 PM Tecan: and im not sure how to math it
02:29 PM gloops: the gear generator link gives rpm, the math is not difficult Tecan if you just want to calculate that
02:32 PM gloops: so, lets say we have some nice easy numbers...
02:32 PM gloops: like 15rpm - 5 rpm
02:32 PM JT-Mobile: hola from Houston
02:32 PM gloops: alls you have to do is divide 15 by 5
02:32 PM gloops: 3-1 ration
02:32 PM gloops: ratio
02:33 PM gloops: Brazil score...
02:34 PM fragalot: 3:1 is easy, non-integer CAN get complicated
02:35 PM fragalot: not that 15:4 is much harder :P
02:36 PM Tecan: https://sourceforge.net/projects/gggears/ looks neat
02:41 PM gloops: i suppose it depends whether you want a model of the gears to cut or print
02:53 PM gloops: Belgium!
02:53 PM fragalot: ?
02:55 PM gloops: won
02:55 PM Tecan: f-engrave works well for cutting out gear profiles. but yes ide be using it for printing
02:55 PM gloops: Brazil go home
02:55 PM Wolf__: wonder if that gggears would make the stupid 72mm pitch spur I had to pretty much hand draw
02:55 PM Tecan: there is also pygear
02:56 PM gloops: also inkscape
02:56 PM Tecan: https://sourceforge.net/projects/pygear/ looked pretty fancy
02:56 PM gloops: gear generator plugin comes as standard now
02:56 PM gloops: inkscape gives a vector
02:57 PM gloops: save as - a lot of different files
02:58 PM Wolf__: i dunno about printing the gear I need, 1/4 of it, 5hr print
02:59 PM fragalot_: print on paper, stick to wooden surface, cut out by hand
02:59 PM Wolf__: well, I could laser it at that point
02:59 PM Wolf__: in one shot even =)
02:59 PM fragalot_: Do that then :P
03:00 PM Wolf__: 297mm outside diam
03:02 PM gloops: more satisfaction fretsaw though
03:02 PM gloops: from fretsaw
03:02 PM Wolf__: actually only printing part of it for test fit, if its good, then plasma out of 1/2” steel plate, then stack 2 to make it 1” thick after turning a bevel on the teeth
03:03 PM fragalot_: is the coarseness from plasma edges not an issue?
03:04 PM Wolf__: https://i.imgur.com/O3CnWmh.jpg probably not
03:04 PM fragalot_: oh ok
03:05 PM Tecan: i was thinking about remixing the gears from this to do 4 mm/s currently it does 1.2 which is enough to print at 0.31 layers 60mm/s from a 0.4 nozzle
03:06 PM Tecan: https://www.thingiverse.com/thing:945156
03:06 PM Tecan: if 3mm filament is used
03:06 PM Tecan: 3.32349725638639 for 1.75 mm filament
03:06 PM Tecan: 1.12377245359828 for 3mm filament
03:07 PM Tecan: the long numbers are mm/s needed to print for that speed
03:07 PM fragalot_: you mean meters?
03:07 PM fragalot_: oh nvm
03:07 PM fragalot_: just got what you meant :D
03:08 PM fragalot_: bear in mind higher speed == higher torque required
03:09 PM Wolf__: this is a uses case for clearpath servos imo
03:09 PM Wolf__: =P
03:09 PM Tecan: another guy was able to do it ungeared at 10 mm/s at https://www.thingiverse.com/thing:1597741
03:09 PM fragalot_: hehe
03:09 PM gloops: have a look at the sprockets on the typical chinese mountain bike - you can get away with a lot lol
03:10 PM Tecan: but im not sure it would be as strong as it should be.
03:10 PM fragalot_: I've always run the MGS extruder on mine, hasn't failed me yet
03:10 PM Wolf__: all i got is shimano
03:10 PM fragalot_: and that machine prints at 250mm/s with 3mm filament on a .4mm nozzle with no problems
03:11 PM Wolf__: I dont eve know what my printer is printing at lol
03:13 PM Wolf__: slow… 70mm/s infil
03:14 PM fragalot_: tbh I don't print at 250mm/s every day,.. the acceleration required to get there is too hard on the parts and I want to avoid premature wear just because I want to save an hour on a print that runs overnight anyway
03:14 PM fragalot_: once the whole table starts shaking you know you've gone too far
03:15 PM Wolf__: I must need a better table, its shaking right now lol
03:15 PM fragalot_: :D
03:17 PM Wolf__: need bigger printer https://i.imgur.com/fkqohZd.jpg
03:18 PM fragalot_: or reduce infill / use rectilinear
03:18 PM fragalot_: if it's only for trial fit
03:19 PM Wolf__: yeah, its at 10% right now
03:19 PM fragalot_: still quite dense for honeycomb
03:19 PM Wolf__: I didn’t think to change infill
03:20 PM Wolf__: I’m usually printing parts to use
03:22 PM fragalot_: https://youtu.be/yMMoyDKPOsk?list=PLrGf8017aF4zHTFFGjFwN1H1kLKi9twgP seems I have an ancient video of the printer when I first built it, lol
03:24 PM fragalot_: https://www.youtube.com/watch?v=dwLE8sKGaiM also turns out i've gone up to 360
03:25 PM fragalot_: god that sounds horrendous when doing the outside, hahahah
03:26 PM XXCoder: dual hotends eh
03:26 PM fragalot_: yes
03:26 PM XXCoder: cool
03:26 PM fragalot_: one is permanently set up with .4mm PLA, the other with .25 ABS
03:26 PM fragalot_: I never use the .25 to be honest
03:26 PM fragalot_: too slow
03:26 PM XXCoder: dual color setup why not?
03:27 PM fragalot_: because I don't care enough :D
03:27 PM XXCoder: lol ok
03:27 PM XXCoder: prusa fork of slic3r will have interesting new feature for wiping
03:28 PM XXCoder: it makes two parts for dual colors, only one is perfect colored, other is just used for wiping and as well make it a complete part
03:28 PM XXCoder: so you have free second part for backup or maybe give away to friend
03:28 PM fragalot_: my slic3r was already set up to wipe the nozzle at some point
03:28 PM fragalot_: oh, like that
03:29 PM fragalot_: interesting
03:29 PM XXCoder: yeah saw voideo of it. second part was kinda sloppy but it was complete
03:29 PM XXCoder: (sloppy color wise, it was fine print wise)
03:31 PM XXCoder: https://www.youtube.com/watch?v=jIN9NwJmk5w
03:31 PM XXCoder: finally found it
03:39 PM XXCoder: what ya think fragalot_
03:42 PM fragalot_: slightly more useful than dumping pure waste, but the margin is tiny imho
03:44 PM XXCoder: guyess so
03:44 PM XXCoder: though if certain conditions is met iuts nice to have extra where it'd be trash
04:06 PM Deejay: gn8
04:12 PM gloops: hmm new ford ka ad came up on facebook
04:13 PM gloops: the ford ka was a dangerous flimsy death-trap
04:15 PM Wolf__: damn thats ugly
04:15 PM XXCoder: not as bad as other cars I saw
04:16 PM Loetmichel: gloops: was it?
04:16 PM XXCoder: tehres this suv I call "goblin face" because it has something that looks like goblin face in back
04:16 PM gloops: my mrs had an old type, the suspension is all rubber bushes
04:16 PM gloops: was scary sitting in it
04:16 PM Loetmichel: i know THAT feeling
04:17 PM gloops: i dont like having my knees touching the bulkhead
04:17 PM Loetmichel: my BMW has coilovers... screwed down SO low that the rubber bumpers are already squished ;)
04:17 PM gloops: one bump - pair of broken hips
04:17 PM Wolf__: I bet the wheels on my truck weigh more and have more metal then that KA has
04:18 PM Loetmichel: Wolf__: entirely possible
04:18 PM Loetmichel: if its a monster truck
04:18 PM Wolf__: just a ford F550
04:18 PM Rab: Exhibit A: https://carwow-uk-wp-2.imgix.net/hazel-brown-smart-e1463987696374.png
04:18 PM Rab: Exhibit B: https://emojipedia-us.s3.amazonaws.com/thumbs/120/apple/129/pile-of-poo_1f4a9.png
04:18 PM gloops: well i changed a wishbone on it, everything at the front is just plastic clipped together
04:19 PM Loetmichel: Rab: a smart is a surprisingly sturdy shopping car(t)
04:20 PM Wolf__: I kinda want a smart car
04:20 PM Loetmichel: its neither meant for stock car races nor for the autobahn
04:20 PM Wolf__: with a ‘busa motor in it
04:20 PM gloops: i know the smart cars have strategic reinforcing, didnt seem to be any of that with the Ka, it would be safer in a shopping trolley
04:21 PM Loetmichel: Wolf__: i would settle for the 85kW brushless electric motor i found a few weeks ago on aliexpress.. ;)
04:21 PM Wolf__: yeah but where ya gonna put all the batteries in the smart lol
04:21 PM Loetmichel: under the seats
04:22 PM Loetmichel: its the only place where they CAN go acutally ;)
04:24 PM Wolf__: oh Loetmichel, https://i.imgur.com/fkqohZd.jpg =D
04:25 PM Loetmichel: nice. did you resuze it?
04:25 PM Loetmichel: or just rotated the teeth?
04:26 PM Wolf__: one of the bed screws was hitting the back of the frame
04:27 PM Loetmichel: ah, so after shortening that you had more y travel?
04:27 PM Wolf__: yeah, was cutting 2cm of travel
04:28 PM Loetmichel: nice
09:07 PM Wolf__: hmm, well that gear design was fail
09:38 PM skunkworks: http://electronicsam.com/images/matsuura/20180706_155102.jpg
09:39 PM skunkworks: http://electronicsam.com/images/matsuura/20180706_180919.jpg
09:40 PM skunkworks: http://electronicsam.com/images/matsuura/20180706_185707.jpg
09:40 PM skunkworks: http://electronicsam.com/images/matsuura/20180706_194434.jpg
09:41 PM XXCoder: wow very visually confusing took me a minute lol
09:41 PM XXCoder: flatting cast iron something feet?
09:41 PM skunkworks: it is the base (y axis) of a mill I have. truing it up
09:42 PM skunkworks: (well - giving me some reference points so I can put it together square. hopefully
09:42 PM XXCoder: yeah
09:42 PM XXCoder: did you indictate the support wall make sure its nice and 90 degree to tool?
09:42 PM Wolf__: milling the bondo off of it? =)
09:42 PM skunkworks: this casting was a lot better than the vertical column.. holes where pretty symetrical and things lined up with the ways
09:43 PM skunkworks: XXCoder: I milled the column base true to iteslf.. http://electronicsam.com/images/matsuura/20180624_202552R.jpg
09:44 PM skunkworks: so hopfully after I add the riser - it should be 'close enough'
09:44 PM XXCoder: hope so :)
09:44 PM skunkworks: this thing needs about a 4 inch riser to make it functional
09:45 PM skunkworks: as it was - the spindle would could go 1" below the table (without a tool in it)
09:45 PM Tom_L: i had that issue to deal with on my homebuilt mill
09:45 PM Tom_L: i wanted it to go low enough a flycutter would reach the table but still have room for longer cutters
09:45 PM skunkworks: so I should be able to make the riser key the base and the z column
09:45 PM Wolf__: I should probably add a riser to my x2 build
09:46 PM skunkworks: I figure there is going to be a fixture plate and or a vise on the table. i don't want to give up too much room
09:47 PM Tom_L: i've got room to skin cut the sacrificial plate on mine
09:48 PM Wolf__: actually my Jet mill could probably use a lift kit
09:48 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Assembly/Final/Vise_parts/Vise3.jpg
09:48 PM Tom_L: tried to make it flexible without slots
09:50 PM XXCoder: skunkworks: below? wasted space!
09:50 PM XXCoder: inch and half added maybe? heh
09:51 PM XXCoder: Tom_L: man your jaws look shiny lol
09:51 PM XXCoder: dont look like kurt though pretty similiar
09:51 PM Tom_L: shars
09:52 PM Tom_L: 4" for size reference
10:03 PM RyanS: does that table mounted enclosure help? my mill spews chips everywhere
10:03 PM Tom_L: yeah and i've made slip on risers that go a bit higher
10:04 PM Tom_L: helps quite a bit but doesn't catch it all
10:04 PM XXCoder: RyanS: depends on lots factors but foot higher than cutting area blocks large percentage of chips.
10:04 PM XXCoder: wear googles anyway
10:04 PM RyanS: I don't want to go to the trouble making room for a full enclosure
10:04 PM Tom_L: i don't have room for one
10:04 PM Wolf__: shower curtain
10:04 PM XXCoder: also, theres silly thing you can make that helps you do cleanup afterwards
10:05 PM XXCoder: use pvc pipes to make a frame and stand for it
10:05 PM XXCoder: you could block off areas from chip flying so easy to clean
10:05 PM Tom_L: use polycarbonate instead of plexi though
10:07 PM RyanS: but I have been putting off tramming the column to fix the 'nod' because it's out a tiny bit but not enough to ruin parts
10:08 PM Tom_L: i haven't checked mine lately but i got it pretty darn close
10:09 PM Wolf__: https://i.imgur.com/v68lNrg.jpg mag mount chip shield helps on my machines
10:09 PM Tom_L: https://www.youtube.com/watch?v=GtFTRyS__Yc
10:10 PM RyanS: yeah I have seen mag mount shields for lathes works well
10:10 PM Tom_L: Wolf__, what's the servo for?
10:11 PM Wolf__: x2 spindle
10:11 PM Wolf__: sewing machine servo
10:12 PM Tom_L: were you the one trying to hack into one of those for speed control?
10:12 PM Wolf__: yeah and blew the board up lol
10:12 PM Tom_L: did you ever get that working?
10:13 PM Wolf__: not yet, I’ll figure out the speed control at some point
10:13 PM Wolf__: or just stmbl it
10:13 PM RyanS: that control box reminds me of the DeLorean time travel console
10:14 PM RyanS: looks a bit like a mad scientists den too, I like it
10:18 PM RyanS: Industrial sewing machines are cool,not multifunctional at all but fast
10:19 PM Wolf__: thats a 750W 190vdc brushless servo motor w/ controller, $220 delivered
10:19 PM Wolf__: made to remove the constant running clutch motor on the industrial sewing machines
10:22 PM Tom_L: aftermarket sherline has one very similar but they want way too much for it
10:23 PM Wolf__: were ya think i got the idea, saw those, then the sewing machine kits on ebay lol
10:23 PM RyanS: some industrial overlockers have a pneumatic blade to cut the edge. I would have thought they would use a linkage to the motor
10:25 PM Tom_L: https://glockcnc.com/#!/750-Watt-Motor-Controller-Continuous-Duty-Sherline-&-Taig-or-Universal-Headstocks-1-HP/p/34923060/category=8597972
10:25 PM Tom_L: those guys are nuts
10:25 PM Wolf__: thats the one
10:25 PM Tom_L: another 275 for the analog interface
10:26 PM Wolf__: + $30 for 220
10:26 PM Wolf__: and the units cost the same $$
10:26 PM Tom_L: i'd use a servo before i'd get one of those
10:27 PM Wolf__: https://i.imgur.com/CyNObxX.jpg
10:27 PM XXCoder: its one of dumb sites with "live chat"
10:27 PM Wolf__: pretty sure speed control is just hacking in to the halls sensor feed
10:27 PM Wolf__: for the foot pedal not the servo halls
10:28 PM Tom_L: on the stock sherline control, the gnd is floating though so it requires another interface board
10:29 PM Wolf__: https://i.imgur.com/d86e03l.jpg
10:29 PM Wolf__: so, $3 arduino?
10:30 PM Tom_L: which wires are the pedal interface?
10:30 PM RyanS: closed loop steppers are cool ( literally too) it's not just about correcting missed steps, apparently double the torque of open loop, much higher rpm
10:30 PM Wolf__: ones in the little box w/ the green pcb
10:30 PM Tom_L: did you measure the voltage or signal at those wires?
10:30 PM Wolf__: oops blue board
10:31 PM Tom_L: yeah i see it
10:31 PM Wolf__: no I pulled it out to test, then the wire fell off the desk and the blue board hit the heat sink, which probably had 190v in it
10:31 PM Wolf__: or something
10:32 PM Wolf__: shit blew up either way
10:32 PM Wolf__: https://i.imgur.com/DVwnSsB.jpg
10:33 PM Wolf__: oops =)
10:33 PM RyanS: so if I were to cnc my BF30 (BLDC spindle), I could just remove the potentiometer and connect the input to the speed controller directly to the cnc controller
10:34 PM Wolf__: mesa sells a thingy to do that
10:34 PM Wolf__: or you can diy one
10:34 PM Tom_L: unless the ground is floating like it is on mine
10:34 PM RyanS: and I guess the speed sensor too?
10:35 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Control1.jpg
10:35 PM Tom_L: that's the only purpose for that board on the left
10:35 PM Tom_L: isolation
10:37 PM Wolf__: https://mesaus.com/index.php?route=product/product&path=65&product_id=91
10:37 PM RyanS: the speed control is bottom left on the box https://www.machines4u.com.au/view/advert/BF30-OPTI-MILLING-MACHINE-GEARED-HEAD/355740/
10:38 PM Wolf__: I think with the Spinx1 you need to add your own spindle feedback
10:38 PM RyanS: could probably just put a connector in place of the pot
10:38 PM Wolf__: thats what I just linked, the mesa spinx1
10:39 PM Tom_L: i've got a separate encoder on my spindle anyway
10:40 PM RyanS: what's the specs on the transformer psu?
10:40 PM Wolf__: err I read that wrong, but need to make sure the control systems dont cause ground loops to each other, that makes for bad day™
10:40 PM Tom_L: RyanS, mine?
10:41 PM RyanS: yeah
10:41 PM Tom_L: surplus stuff i put together but ~48v 18A
10:41 PM Tom_L: a little overkill
10:42 PM Tom_L: i could probably get by with one of those transformers
10:42 PM RyanS: any difference between a toroidal and that style?
10:42 PM Tom_L: these were cheap :)
10:42 PM Tom_L: toroid is probably more efficient
10:43 PM Tom_L: caps were surplus too or i'd have one big one
10:46 PM RyanS: and the secondary voltage of the transformer is about 30V? i think I read the formula is secondary * 1.4?
10:47 PM Wolf__: https://www.ebay.com/itm/163137277834 damn thats cheap
10:49 PM Wolf__: maybe I should stick one on my 12x37 lathe seeing last owner had put a 1/3hp on it
10:50 PM Tom_L: it may have been a little more than that, i can't honestly remember now
10:55 PM Tom_L: Wolf__, what's the black thing above the motor?
10:57 PM Wolf__: its a indexer for the controller, so when you let off the pedal the sewing machine spindle aways stops w/ the needle down
10:59 PM RyanS: do you know if the VA rating can be directly converted to DC watts with ohms law? I think VA is just power in the context of AC
11:00 PM Tom_L: your 1.4 factor is pretty close on the DC volts
11:02 PM Tom_L: https://www.rapidtables.com/calc/electric/watt-to-va-calculator.html
11:02 PM RyanS: i'm not fussed if the control cabinet is a boat anchor, I just don't want a cheapo SMPS as it's just one more thing to trouble shoot
11:03 PM Wolf__: makes power ir makes smoke
11:03 PM Wolf__: ir/ot
11:04 PM Wolf__: … OR
11:04 PM nallar is now known as Ross
11:05 PM RyanS: a chuck of copper wire is caveman simple that I can't see it ever failing
11:05 PM * Wolf__ could manage to break it somehow
11:06 PM Wolf__: I dont let the magic smoke out of things, I usually end up with components turing in to smoke
11:07 PM renesis: cool splosions are little chunks blowing out of packages
11:08 PM Wolf__: Kinda like this n-fet motor controller thats missing a mosfet https://i.imgur.com/nuuui9t.jpg
11:08 PM renesis: like, little cube of plastic missing from middle of to-220 package with a crack across entire package
11:08 PM renesis: wolf__: very impress
11:08 PM RyanS: ( I'm imagining the ape-men in 2001 discovering the transformer psu next to the monolith)
11:09 PM renesis: some random PCB with blown out protection sections is the monolith
11:10 PM Wolf__: that one sucked, was a 15A roboclaw motor controller, blew out the fet driver ic and cooked one of the MCU pwm channels
11:10 PM Wolf__: well 3 out of 4 fet drivers blew out…
11:10 PM renesis: what do you think started the mess?
11:11 PM Wolf__: hooking a high current wheelchair motor to it and having it go from running free wheel to dropping on to carpet
11:12 PM RyanS: I have two wheelchair motors waiting for a use
11:13 PM Wolf__: https://i.imgur.com/O3CnWmh.jpg I need a drive gear
11:13 PM Wolf__: and motor controllers
11:13 PM Wolf__: I have 4 sets to play with
11:15 PM Wolf__: and I need a hill mower
11:16 PM RyanS: the Neanderthals who design wheelchairs don't seem to be aware of LiPo batteries, so SLA it is
11:17 PM Wolf__: same here
11:17 PM Wolf__: usually 70ah/24v worth
11:17 PM Wolf__: er
11:18 PM Wolf__: 35ah/12v, that doesnt add up that way i think
11:22 PM RyanS: so heavy and then every few years there's some 'newly invented' stair climbing wheelchair which bombs out commercially because the price is prohibitive. there's no innovation
11:25 PM * Wolf__ has china level innovation planned http://www.evatech.net/PRODUCT.php?ID=6
11:27 PM Wolf__: plus they are usually paid for by medical insurance so the companies making them dont care, nor do most people using them
11:27 PM RyanS: China innovates far more than any wheelchair manufacturer
11:28 PM Wolf__: on the positive side, I can usually find full mobility chairs for ~$300
11:29 PM RyanS: yeah or government funding. same thing with hospitals, even the most simple consumables is absurdly priced
11:30 PM Wolf__: yup
11:31 PM Wolf__: I am planning on making the track system semi modular so I’m not trapped with it being always a lawnmower
11:31 PM RyanS: I'll sell you my old one for $20,000, 1/2 the price of the new one :-)
11:31 PM Wolf__: lol
11:31 PM XXCoder: health assistance? price dot to right 2 times for price, innovation move dot to left million times
11:32 PM Wolf__: yup, why innovate when you can make more profit off crap that is old tech
11:34 PM RyanS: I want to turn it into a platform to shift steel sheets to the shed and use the actuators from the seat to jack them onto the plasma table
11:34 PM Wolf__: hehe
11:34 PM Wolf__: I have a thing to do that
11:34 PM Wolf__: forklift
11:35 PM RyanS: but meh, will always forget to charge it
11:36 PM Wolf__: put small gas motor and alternator on it
11:36 PM XXCoder: invent true wireless power
11:36 PM Wolf__: kinda like the evatech stuff
11:37 PM Wolf__: or 1000w laser and solar panel
11:38 PM RyanS: there's this thing it's a 24V,mini fan heater, with I guess a microcontroller, they want $2000AUD for it
11:39 PM Wolf__: eh
11:39 PM RyanS: I use a truck light bulb lol
11:39 PM Wolf__: lol
11:40 PM RyanS: http://www.mo-vis.com/en/products/mo-vis-products/hand-warmer
11:41 PM Wolf__: ugh, i forgot that I need to fix the alternator in my skid loader
11:41 PM Wolf__: lol
11:41 PM Wolf__: dome security camera heater
11:42 PM RyanS: https://www.ebay.co.uk/itm/DBK-Heizlufter-Typhoon-25-/201235375139 im certain it's just an enclosure heater
11:43 PM XXCoder: great for abs 3d printer I guess
11:44 PM RyanS: yeah that is an example on their website but unfortunately they have no Australian distributor
11:45 PM Wolf__: https://i.imgur.com/DCgdLTI.jpg
11:46 PM Wolf__: with 40mm fan
11:47 PM RyanS: is it off the shelf?
11:47 PM Wolf__: possibly, its out of one of the big roadway camera domes
11:48 PM Wolf__: https://i.imgur.com/XQULWGd.jpg
11:49 PM RyanS: probably mains voltage
11:50 PM Wolf__: 24v may be AC tho
11:51 PM Wolf__: I know one way to find out, plug it in to my desktop psu lol
11:53 PM RyanS: I could attach this to a cpu heatsink and have a fan blow through it https://au.rs-online.com/web/p/enclosure-heating-elements/7256465/
11:55 PM Wolf__: https://i.imgur.com/gtT1LWR.jpg lol
11:58 PM RyanS: is that with the gueard removed?
11:58 PM Wolf__: no, it had two heaters
11:58 PM Wolf__: the metal box one is a coil element
11:59 PM RyanS: I guess just pass the air straight over the element