#linuxcnc Logs

Nov 19 2017

#linuxcnc Calendar

12:14 AM absynth is now known as dan2wik
12:49 AM monkeyMob: test
12:50 AM monkeyMob: k seems working
12:51 AM monkeyisl: https://www.youtube.com/watch?v=xF8erDoJlsY
12:55 AM gloops: looks like youre in monkey
12:56 AM XXCoder: IN monkey eww
12:59 AM gloops: doubt ill be cutting until the new year
01:04 AM monkeyisl: mobil irc is garbage it keeps disconnrctiong
01:05 AM XXCoder: i use hexchat
01:14 AM IchGucksLive: morning from sunrise in europ
01:14 AM XXCoder: geez mint went weird
01:15 AM XXCoder: that or hard drive is starting to fail
01:48 AM IchGucksLive: till later
01:51 AM gloops: wow gantry is pretty wide for a 900 cut
01:51 AM gloops: 1360mm looks bigger when its made
01:56 AM archivist: cars never fit in garages again
01:59 AM gloops: i left plenty of room over the screws - motor will go between the uprights i dont want it stuck out
02:00 AM gloops: i can stand full weight on one cross member - no bend
02:00 AM gloops: so far so good
02:03 AM gloops: failed to get cutting point central between x bearings, thats the only mistake, i dont think it will matter
02:04 AM archivist: horizontal bend is the usual mistook on gantry designs
02:05 AM gloops: well if this bends there isnt much more that could be done - it wont anyway
02:05 AM gloops: just a bit heavy
02:06 AM gloops: would have needed 1 foot long feet on X to get cutter central, i only made 9 inch, suppose that could be rectified if its a problem
02:10 AM Deejay: moin
02:14 AM gloops: with 50-60kg pressing down a good counterbalance to any leverage from cutting is already in place, would take some lifting from any one point
03:02 AM archivist: er cutting force is often sideways rather than up/down
03:20 AM XXCoder: this is cool https://youtu.be/bhZdbgM6S70
03:34 AM A|9000: hi all I have a doubt...
03:35 AM archivist: get a solution then
03:35 AM A|9000: i have already a cnc hardware that works on mach3
03:36 AM A|9000: can I install linuxcnc on ubuntu and go on works ?
03:36 AM archivist: if it connects via parallel port BOB then changing is simple
03:36 AM A|9000: yes I use parallel port
03:39 AM A|9000: waht you mean aout BOB ?
03:39 AM archivist: breakout board
03:40 AM archivist: not a motion controller
03:41 AM A|9000: did youhave a photo to understand the difference ? I'm little confused
03:42 AM archivist: http://www.collection.archivist.info/archive/mirror/cnc/bob/$_57.JPG
03:44 AM A|9000: thnx
03:45 AM archivist: those are quite cheap and work reasonably well
03:46 AM gloops: installing on ubuntu might be a bit tricky
03:46 AM XXCoder: you need rt kernel
03:47 AM gloops: yeah, dont know if i messed it up but caused problems
03:47 AM archivist: use the live CD download for easy setup
03:48 AM XXCoder: yeah that distro is little bit older but ya know, you dont need super up to date to run cnc machine.
03:48 AM A|9000: yes i've downloaded the live cd
03:49 AM gloops: probably best way is just to start with a spare hard drive and a clean install from the downloadable iso
03:50 AM A|9000: yes I've a pc deicate to this; I need to find aFree hardrive from my pare part box :)
03:50 AM gloops: you can try linuxcnc from bootable usb - but it wont run a machine from that
03:53 AM gloops: https://www.ebay.co.uk/itm/222712740704? would bid on that if i wasnt doing other things, cant make out wether the tailstock end foot is broke off or some kind of fitting there though
03:53 AM A|9000: Yes thnx; but i need to see if my cnc harware controller is compatible
04:15 AM monkeyMob: A9000 : why are you moving to linuxcnc from mach? just curious
04:31 AM IchGucksLive: hi from sunny cold germany
04:48 AM gloops: sbr 16 rails - bent as a butchers hook
04:48 AM IchGucksLive: how that happen
04:49 AM gloops: in transit maybe? or just made like that
04:49 AM gloops: clear couple of mm bow
04:50 AM gloops: dont know if that is normal, will go on ok
04:51 AM archivist: many rails systems expect the frame to hold them straight
04:53 AM gloops: yeah supposed, they are designed for support
05:07 AM jthornton: morning
05:09 AM XXCoder: jthornton: ya ok? heh
05:09 AM jthornton: yea why
05:10 AM XXCoder: just funny, say moning then leave :P
05:11 AM jthornton: ah I just restarted hexchat
05:50 AM IchGucksLive: till later
05:57 AM R2E4: morning
08:15 AM jthornton: 38F this morning
08:26 AM gloops: archivist any good - https://www.ebay.co.uk/itm/14-64m-of-150-mm-high-Flat-Bottom-Aluminium-Rail-for-5-gauge-Steam-Model/253255755714?
08:27 AM archivist: I have a couple of lengths in the loft I have only used for a bench :)
08:28 AM archivist: that looks a bit rough and "used"
08:28 AM gloops: just wondered if any use in your steam affairs
08:29 AM gloops: could have that running out the garage and have machines on wheels - push them out the way when space needed
08:30 AM archivist: that rail is a bit light for machines
08:31 AM archivist: I have mine on scaffold rollers
08:32 AM gloops: got mine bolted down, this is rotherham heh
08:32 AM archivist: hehe
08:33 AM gloops: have known them lift cars over to get caravan out
08:33 AM archivist: I see that bloke even parks on his spastic flower pots to stop them being stolen
08:34 AM gloops: anti theft device - will make a noise if anyone moves that trailer
08:44 AM miss0r: I just got three 75x150mm precision machine vises for 50$ on online auction :D
08:45 AM * miss0r assumes he will get a cardboard box with a brick in it send via mail
08:46 AM archivist: I sometimes rush around to collect if its tooooo cheap :)
08:46 AM miss0r: its a partial auction. Noone can go pick up anything until wensday
08:47 AM miss0r: But rest assured, I will be there the second the door opens
08:48 AM miss0r: I also bit on a box with two depth gauges and some micrometers. plus a nice t-slot cube
08:49 AM archivist: I for see a space problem
08:51 AM archivist: all these "might be useful" things http://www.ebay.co.uk/itm/HTE-Hounsfield-Tensille-Testing-Machine/352212442567
08:53 AM miss0r: hehe
09:05 AM sync: yeah those are always cheap
09:23 AM R2E4: hey guys, I am doing a bridgeport retrofit with dc servos. I have a 130vdc power supply, but the drives I am using has no enable.
09:23 AM R2E4: https://pasteboard.co/GUnRR3g.jpg
09:23 AM R2E4: Should I apply aC power to the drives when I enable from Lcnc?
09:26 AM R2E4: Teh drives are Viper 200..... The manufacturer specifically states do not remove power from the DC side. Cit AC input to power supply.
09:27 AM miss0r: R2E4: Do yourself a favour and replace thoes old plug rectifyers with a few rectifier brydges
09:28 AM miss0r: The rest I know nothing about, sorry
09:28 AM R2E4: Those are milspec diodes. You can drive a tank over those....
09:30 AM miss0r: mechanically sound, sure. But they have a nasty tendency to leak & create excess heat
09:30 AM R2E4: The 4 on the bus bars are blocking diodes. The rectifier consists of the ones on the left on the heat sync.
09:30 AM miss0r: Atleast the ones I've come across
09:30 AM miss0r: I'm speaking of the ones on the heat sync
09:31 AM R2E4: I'll check them. Thanks.
09:31 AM miss0r: np. Sorry I couldn't be of any 'real' help ;)
09:32 AM R2E4: I am trying to figure out why you would manufacture a dc servo driver and have no enable......
09:33 AM miss0r: hmm... Do they have a break?
09:33 AM miss0r: break=brake
09:33 AM R2E4: no
09:34 AM miss0r: Then I have no idea
09:35 AM miss0r: I have to go eat now. have a good one people
09:35 AM archivist: some think e stop is remove all power rather than bring to a safe stop first
09:36 AM R2E4: So crank up the power supply when it comes out of e-stop?
09:40 AM gloops: good buy miss0r
09:44 AM sync: yes R2E4
09:45 AM sync: archivist: different estop categories
09:45 AM archivist: I know, it is a choice
09:46 AM R2E4: yes but I dont like enable the drives without lcnc having control
09:46 AM R2E4: Come out of estop, servo takes off and lcnc cannot stop it
09:46 AM R2E4: Bad scenario
09:47 AM gloops: limit switches?
09:48 AM R2E4: limit switches will stop it but thats a last ditch scenario.....
09:49 AM R2E4: I dont really have much of a choice. I dont think its ideal..... but it will have to do.
09:50 AM sync: as soon as you come out of estop it should have control
09:50 AM sync: so eh
09:50 AM R2E4: lcnc wont have control until you turn lcnc on.
09:51 AM R2E4: come out of estop, if your drives enabled but lcnc not turned on, it has no control
09:51 AM sync: yeah, but you can just connect lcnc to your estop
09:52 AM R2E4: what would that matter?
09:52 AM gloops: well my iron monster is looking very butch
09:52 AM sync: you cannot turn it on unless your control is running
09:52 AM sync: avoiding your issue
09:52 AM R2E4: lcnc wont do anything until you turn on lcnc.
09:53 AM R2E4: machine-is-on
09:53 AM archivist: lcnc brings out of estop
09:54 AM R2E4: yes but not until the machine is on.
09:54 AM sync: so where is the issue?
09:54 AM sync: if the estop is locked unless linuxcnc is ready you cannot have the drives run away
09:55 AM R2E4: Maybe I am overthinking it....but, when I power on the machine, estop is clear the drives are enabled. at this point anything can happen and lcnc wont be able to do anything because machine-is-on = false.
09:56 AM sync: no
09:56 AM sync: you cannot enable estop
09:56 AM sync: if you do it the way we describe it
09:56 AM sync: the machine is powered, yes
09:57 AM sync: but not your dc link
09:57 AM sync: so it is unable to move
09:57 AM archivist: the relay cannot be pulled in until lcnc is up and ready
09:57 AM R2E4: ok so I tie my dc bus with machine-is-on/
09:58 AM R2E4: So when i push estop button por lcnc throws an estop dc bus drops....
10:00 AM archivist: I thought you said that was a nono for those drives, switch the ac?
10:00 AM sync: you just switch it off on the ac side
10:00 AM R2E4: yes, I'll bring up the dc bus via dropping the AC
10:00 AM sync: if you have a brake resistor you can just command it to brake the dclink empty
10:00 AM archivist: although that means a bit of a slow stop as the capacitors discharge
10:00 AM R2E4: exactly\
10:01 AM sync: yeah, but the drives should see no command speed
10:01 AM sync: you can calculate how far it will go on the capacitance
10:01 AM sync: ideally linuxcnc would try to control the drives to 0 velocity even if estopped
10:02 AM sync: but no idea if that is even possible
10:03 AM R2E4: since these dc servos are closed at the drive, I will use the drive alarm to estop the machine.
10:04 AM R2E4: Ive done about 10 machines with mesa cards. Allways have closed back to Lcnc and drive enables. Not one comeback or issues.
10:05 AM R2E4: I dont like changing the game, but I guess sometimes dont have a choice.
10:06 AM archivist: I hope you dont hit franks problem
10:06 AM R2E4: Frank who?
10:07 AM archivist: the one who lurks here often
10:07 AM R2E4: where the drive is misconfigured and it takes off without f-error?
10:07 AM archivist: his ferror in the closed drive was defaulting to a large amount
10:08 AM R2E4: I am going to tighten that up. Its going to f-errer when the operator sneezes.
10:08 AM archivist: so added friction delayed one axis
10:25 AM sync: you can always swap the drives for something with an enable R2E4
10:26 AM R2E4: yeah, but I purchased these drives and the margin on this job is really low.
11:23 AM pcw_home: Hard to imagine a drive of any decent size without an enable
11:26 AM enleth: R2E4: assign an "always true" signal to one mesa output and use that to drive a relay which is wired in series in the AC contactor circuit, so that the contactor won't come on until LinuxCNC has actually initialized the outputs, including the analog signals to the servo drive; use a delay (HAL module or ladder logic) to be extra sure the analog lines are flat 0 at that point
11:27 AM enleth: R2E4: make it separate from e-stop, obviously
11:27 AM enleth: so that hitting e-stop won't overstress the servo drives each time by cutting their AC inputs
11:29 AM enleth: I'm pretty sure that's what the industrial controls do, there's a "control active" output that's always on when all the other outputs are in a known state
11:34 AM andypugh: I want a mag drill. I only have two holes to cut, but I still want one.
11:34 AM andypugh: https://www.ebay.co.uk/itm/Rotabroach-Adder-Magnetic-Hole-Drilling-Machine-Mag-Drill-240V-CM-705-3/262260314207?epid=1755709734&hash=item3d0feed05f:g:hNEAAOSwB-1YqwIy
11:34 AM andypugh: is nice.
11:35 AM sync: cute
11:35 AM sync: I hear the BGS ones are ok
11:35 AM JT-Shop: you can borrow mine
11:39 AM archivist: when the hole is big sometimes you need two fellows to hold them still :)
11:41 AM JT-Shop: mine has a weak magnet :(
11:41 AM archivist: heavy little animals too
12:31 PM IchGucksLive: hi
12:33 PM gloops_: evenin
12:35 PM R2E4: hi Ich
12:36 PM IchGucksLive: cold night
12:38 PM Motioncontrol: Hi I have reach a bug with use remap config: If remapper Feed epilog, and call in MDI a exstarnal sub ( o107 call) when have command g38.x probe , the motion stop at the first command and not execution the next command. the sub is : o<107> sub
12:38 PM Motioncontrol: g38.3 z-10 f1000
12:38 PM Motioncontrol: g38.2 z-20 f1000
12:38 PM Motioncontrol: o<107> endsub
12:38 PM Motioncontrol: m2
12:38 PM Motioncontrol: This bug in actual is in 2.7 vers. and actual Master.
12:39 PM IchGucksLive: Motioncontrol: why do you use sub not ngc
12:39 PM nallar is now known as Ross
12:40 PM IchGucksLive: you manly need 4 files to probe a part xy
12:40 PM Motioncontrol: excuse i don't have write .ngc , but the bug is real
12:40 PM IchGucksLive: and can combine them on most
12:41 PM Motioncontrol: the linuxcnc execute only first command g38.3 and not g38.2
12:41 PM IchGucksLive: i got 2.7.11 running and all probing works from yesterday
12:41 PM Motioncontrol: if delete in ini file epilog the F remapped, the program is execute normally.
12:42 PM Motioncontrol: IchGucksLive, you execute in exsternal sub ?
12:42 PM Motioncontrol: the problem is only mdi command, in auto fuction ok
12:42 PM IchGucksLive: in external ngc
12:43 PM IchGucksLive: i probe on M code
12:43 PM Motioncontrol: N2 command sequential ?
12:44 PM Motioncontrol: please test, i are sure it is a bug.
12:47 PM gloops_: Motioncontrol im sure the developers will be interested - they dont seem to be around at the moment
12:47 PM Motioncontrol: gloops_, ok thanks
12:48 PM archivist: file a bug with a test case
12:50 PM R2E4: Do you see any errors on cli? Are you sure you are in the right mode? The interpreter will ignore you if you are not. Doesnt allways spit an eorror either.
12:51 PM Motioncontrol: i don't know procedure for write a bug
12:53 PM archivist: a list of steps how you got the behaviour and any gcode
01:00 PM BeachBumPete: https://www.youtube.com/watch?v=QvndFi6vdKI Anyone here got an idea where I could find a screw jack like this one in the video? He said it was from a camper or something in another video but I cannot seem to find anything like it online short of a trailer jack which is much shorter and whatnot...
01:02 PM MarcelineVQ: yeah that's pretty dang big
01:02 PM MarcelineVQ: try searching for camper leg
01:03 PM BeachBumPete: I know that is what is nice about it. It apparently has the balls to bend the tube and the throw to push past a 90 in a single pass
01:03 PM MarcelineVQ: campers have 4 of them to lift themoff the truck bed and they're usually a screwjack of some sort
01:03 PM BeachBumPete: I just bought a similar bender to this and I am debating whether to use this or just a simple air/hydro ram
01:04 PM BeachBumPete: the latter is quite noisy
01:04 PM BeachBumPete: and requires air power as well
01:04 PM sync: or just get a real hydro power unit
01:04 PM sync: used they are not so bad
01:04 PM BeachBumPete: would be real nice to be able to bend tube with a cordless drill
01:04 PM BeachBumPete: they are also noisy tho
01:04 PM MarcelineVQ: hmm, the pipe benders we had at school were hydraulic lever
01:05 PM MarcelineVQ: that is to say hand-lever powered
01:05 PM BeachBumPete: you could use one of the manual hydro unit but you would be pumping A LOT
01:05 PM sync: yeah
01:05 PM BeachBumPete: I got the Pro Tools MB105 HD model
01:05 PM BeachBumPete: that guy is using a JD2 older model of bender
01:05 PM BeachBumPete: very similar tho
01:06 PM BeachBumPete: that video just looked like a great alternative that would allow quiet bending in my shop
01:06 PM MarcelineVQ: geeze, look at the head on that jack in the video, dunno if I​ believe this is from a camper. if it is it's a good old one
01:06 PM sync: hm, seems like it is one of those stabilizer jacks
01:16 PM gloops_: have seen a few home made with bottle jacks
01:17 PM gloops_: keenans racing cars near me does all the tubular chassis with one
01:17 PM BeachBumPete: yeah I have as well. I actually built one awhile back from the Gottrikes plans but I sold it when we moved to Florida for room on the truck
01:17 PM BeachBumPete: This time I elected to just buy a proven good one and get to building something with it
01:18 PM gloops_: you have got some kind of fine control with a jack lever
01:20 PM BeachBumPete: yeah that is true and one of the things I like about it
01:20 PM BeachBumPete: I have a friend from work who wants me to build a new cage for his Kawasaki Terex so I need to get things going for that as well as my own project reverse trike I am getting ready to build
01:21 PM gloops_: reverse trike - 2 wheels up front?
01:22 PM BeachBumPete: yeah
01:22 PM gloops_: probably a lot better to drive
01:23 PM BeachBumPete: well its been done A LOT so I guess so
01:23 PM BeachBumPete: the plan is something along the lines of the Campagna Trex but my own design
01:24 PM gloops_: they look good
01:24 PM gloops_: what engine?
01:25 PM BeachBumPete: not sure just yet but the plan is to rescue a wrecked literbike
01:25 PM gloops_: the local wisdom favours the 0W01, i suppose any big bike engine is ok
01:26 PM BeachBumPete: the owo1 that is a very rare yamaha superbike that was for racing only no?
01:27 PM gloops_: yammy fzr r
01:27 PM BeachBumPete: yeah I know I had a Yamaha FZR1000 92 for years
01:27 PM BeachBumPete: absolutely loved that thing
01:31 PM BeachBumPete: https://www.youtube.com/watch?v=mk-fh25z--M These are really cool and made here in South Florida
01:33 PM IchGucksLive: Gn8
01:34 PM gloops_: https://www.facebook.com/MK-Engineering-259362037458423/ similar to what the kid in my village does, his brother just moved from accross the road
01:37 PM BeachBumPete: those look cool too I thought about making an offroad cart at one point but I really want a superbike driven road going toy LOL
01:40 PM gloops_: he does make them for the road as well, started off in his garage, they sell them all over the world now
01:40 PM gloops_: not selling so many since the financial crash i dont think, theyre like sh*t off a shovel
01:41 PM sync: yeah being three wheeled makes it easier in a lot of jurisdictions if you also have a carb license
01:44 PM gloops_: never driven a reverse trike, tbh i dont like normal trikes, a quad you can kind of get a feel for, a trike is awkward to drive
01:44 PM gloops_: i bet the two wheels up front is miles better
02:13 PM nallar is now known as Ross
02:15 PM CaptHindsight: BeachBumPete: scrap gate opener or surplus acme or ball screw http://www.surpluscenter.com/Power-Transmission/ACME-Thread-Lead-Screw-Nuts/ACME-Thread-Lead-Screws/
02:16 PM CaptHindsight: he got lucky for $8 at a scrap yard
02:24 PM gloops_: https://www.ebay.co.uk/itm/8-TON-HYDRAULIC-LIFT-BOTTLE-JACK-CAR-50cm-LONG-RAM-TRUCK-VAN-BOAT-GARAGE-LIFTING/122791705733?
02:29 PM CaptHindsight: https://www.walmart.com/ip/8-Ton-Long-Ram-Hydraulic-Jack-Cherry-Picker-Tools/102555275
02:31 PM CaptHindsight: surprised HF doesn't have one
02:32 PM hazzy: https://www.harborfreight.com/8-ton-long-ram-air-hydraulic-jack-94562.html
02:32 PM hazzy: AIR :D
02:33 PM gloops_: air if its handy
02:34 PM gloops_: i dunno, ok if you have a shop with air on all the time, bit of hassle if you dont
02:34 PM hazzy: I always have air
02:35 PM CaptHindsight: http://www.trick-tools.com/Bend-Tech-Dragon-Tube-Cutting-and-Marking-System-9095 this could be a pretty simple LCNC project
02:36 PM gloops_: well youre lucky hazzy, i dont run the compressor as soon as ive turned the lights on, i dont use it much at all
02:36 PM gloops_: air is blood!
02:37 PM CaptHindsight: I keep air in a tank for things like that
02:37 PM gloops_: looks interesting Capt
02:38 PM CaptHindsight: http://www.trick-tools.com/Transfluid_Mandrel_Tube_Bending_Machine_20101k_4355 maybe this size with mandrel bending and plasma cutting in one
02:42 PM CaptHindsight: simple DIY plasma cutter/notcher for pipe
02:42 PM CaptHindsight: https://imgur.com/gallery/l7HpO
02:47 PM gloops_: mighty good idea
02:49 PM * gloops_ thinks back to the patterns makers who used to dip tubes in a tank of water and had other numerous such tricks
02:56 PM jasen: but one of them must be hiden
02:57 PM jasen: opss
03:00 PM DaViruz: i made one for my friends waterjet, but tube notching with waterjet turned out to be problematic
03:01 PM MarcelineVQ: DaViruz: hard to get the cuts started?
03:01 PM DaViruz: not really, but hard to keep them from cutting on the backside
03:02 PM MarcelineVQ: :O
03:02 PM DaViruz: inserting a rod works to some degree, but some internal damage seems unavoidable
03:28 PM BeachBumPete: Thanks guys I have seen most of the other options done, Air/Hydro, full Hydro, etc. etc. Just had never seen that screw driven lift ram like that and figured it would work great for what I want to do here. I just never saw a ram that big before and tried to find one online without luck
03:36 PM CaptHindsight: DaViruz: did you notice if 4-5" or larger tubes were still a problem vs <2"
03:38 PM DaViruz: only tested up to about 2"
03:52 PM CaptHindsight: https://www.youtube.com/watch?v=cJGyUhzg3qQ looks >100mm dia
03:53 PM CaptHindsight: same https://youtu.be/c9sSvDZo9lw?t=1m3s
03:58 PM Deejay: gn8
04:00 PM sync: I like how the water line is just a coil of tube
04:00 PM sync: but it makes sense I guess
04:23 PM CaptHindsight: I think RobotMaster is ~$10K
04:26 PM CaptHindsight: https://www.youtube.com/watch?v=hd6l82OZd0s Waterjet 5-Axis Bevelled Hole Cut
04:36 PM DaViruz: the tilt heads are pretty cool
05:08 PM hazzy: We have a 5 axis OMAX at school, I have never attempted to use the extra axes though ...
06:21 PM * hazzy split some wood yesterday: https://i.imgur.com/ZGBylLZ.jpg
06:21 PM hazzy: now time to burn it
06:22 PM MarcelineVQ: knotty wood should be punished?
06:35 PM hazzy: I punished the knotty pieces pretty good, in fact they were almost unrecognizable after I was done with the maul and the wedges :D
06:36 PM hazzy: some of them were a real challenge to get to behave though ...
06:48 PM CaptHindsight: 60,000 PSI Vs 90,000 PSI Waterjet Cutting https://www.youtube.com/watch?v=YBqgofmdKc8
06:48 PM CaptHindsight: Power = kPV, sounds like maths!
06:52 PM CaptHindsight: if high pressure is not making cutting faster, and if like he said using bigger orifice can do faster cutting, then why do we need 60K psi? we might as well just use 10K psi because then we can use a very large orifice.
06:54 PM SpeedEvil: Cut depth drops a lot.
06:54 PM SpeedEvil: And general performance.
06:54 PM SpeedEvil: you can cut with 2000PSI just fine.
06:54 PM SpeedEvil: It's just only polystyrene
06:54 PM SpeedEvil: and most waterjet cutting uses abrasives mixed in
06:54 PM SpeedEvil: the abrasive consumption goes _way_ up
06:55 PM CaptHindsight: the video is missleading
07:00 PM malcom2073: I've seen someone cutting 1/4" aluminum with a power washer with the right abrasives and nozzle
07:07 PM CaptHindsight: 5 axis plasma pipe cutting machine https://www.youtube.com/watch?v=_QhQ-0EP7fc
07:07 PM CaptHindsight: the questions are about what controls can do this
07:08 PM CaptHindsight: and what CAM to use
07:11 PM CaptHindsight: https://machmotion.com/retrofits-main-plasma retrofit kits start at ~$12k
07:11 PM CaptHindsight: for plasma
07:12 PM CaptHindsight: oh wow, thats just for their hardware
07:13 PM CaptHindsight: and software but no labor
07:15 PM CaptHindsight: https://machmotion.com/retrofits-main-mill $7k for a CNC kit, controller, motors, drives and Winders control software
07:15 PM CaptHindsight: VMC kits start at $24K
07:17 PM CaptHindsight: https://machmotion.com/retrofits-main-mill#customize Block Processing Time 7.5mS and 1.5mS, i wonder if that is the servo period
07:19 PM CaptHindsight: anyone ever see or try this? MachMotion Mill Control Demo https://www.youtube.com/watch?time_continue=1&v=YMSqpQy7SkI
07:21 PM malcom2073: Heh, can't even get mach4 stable, and they're on to something new!
07:21 PM CaptHindsight: are they also Mach?
07:21 PM CaptHindsight: was wondering
07:21 PM malcom2073: It said based on Mach4
07:21 PM malcom2073: I made an assumption, coudl be wrong?
07:21 PM CaptHindsight: heh, missed that
07:22 PM malcom2073: in the comments
07:22 PM CaptHindsight: https://machmotion.com/about-main
07:23 PM CaptHindsight: oh it's customized Mach4 https://machmotion.com/about-partners
07:23 PM CaptHindsight: hahahah
07:24 PM CaptHindsight: malcom2073: you are correct sir
07:25 PM CaptHindsight: they are near JT!
07:25 PM malcom2073: heh
07:25 PM CaptHindsight: I'll have to ask him if he's had any contact with them
07:29 PM CaptHindsight: waterjet retrofit kit $14k
07:30 PM CaptHindsight: https://machmotion.com/retrofits-main-waterjet PC 3 Teco 400w servo motors, 10K cpr encoders and some IO in a box
07:30 PM CaptHindsight: for $14K!
07:31 PM CaptHindsight: control cabinet https://machmotion.com/documentation/Enclosures/Electrical%20Enclosure%20Wiring%20Diagram%20-%20Apollo%20III.pdf
07:33 PM SpeedEvil: malcom2073: yeah - abrasive consumption goes waay up.
07:33 PM malcom2073: Which I hear is expensive
07:36 PM CaptHindsight: cheap as dirt until it gets labeled as a waterjet abrasive
07:37 PM SpeedEvil: At some point, three tons of abrasive a cut becomes a problem
07:40 PM CaptHindsight: 4,400 lb. bulk bags https://www.barton.com/waterjet-abrasives/hpx-high-performance-crystalline-garnet-waterjet-abrasives/
07:43 PM SpeedEvil: And a boy to shovel it into the waterjet
07:45 PM CaptHindsight: migrant workers
07:45 PM hazzy: We have a hopper that takes a pallet of abrasive at a time, which is convenient, but the the tank fills with sand before the hopper runs out!
07:46 PM CaptHindsight: I was just surprised to find the custom mach software on so many plasma and waterjet machines
07:46 PM CaptHindsight: there a waterjet service right down the street from me...
07:47 PM CaptHindsight: big machines, must be at least a 10 x 20ft bed
07:50 PM CaptHindsight: https://wardjet.com/products/waterjet/recycling/ward-pro
07:51 PM CaptHindsight: 80 Mesh vs. Recycled Abrasive Waterjet Cut Comparison https://www.youtube.com/watch?v=FYEOqWCQvrA
07:52 PM skunkworks: CaptHindsight, scary... That is what artsoft is pushing. Industrial over hobbyist.
07:53 PM CaptHindsight: yeah
07:53 PM CaptHindsight: scary
07:57 PM CaptHindsight: I ran into another closed source controls vendor at the mold show..
07:58 PM CaptHindsight: they had Bridgeport retrofits for ~$35K complete
07:59 PM sync: hazzy: sand conveyor out the tank
08:01 PM hazzy: sync: Yes, we really need something like that, or just have a rule where each student who uses the jet had remove one shovel full of sand :)
08:03 PM sync: that would also help
08:04 PM sync: I think ours has a pump that runs when it is cutting and pumps the water through some filter cloth that runs in a loop
08:04 PM sync: so it just dumps the used abrasive somewhere else while recycling the water
08:04 PM CaptHindsight: turn it into an indoor beach party
08:08 PM CaptHindsight: hazzy: what is the cutting area of the waterjet?
08:09 PM CaptHindsight: I might build a multi-axis plasma cutter with some spare parts
08:10 PM CaptHindsight: with a waterjet service so close I don't know if I'd bother making one
08:10 PM hazzy: It is a 4' x 8' but one end is taken up by the air tank to use to raise the water level, so working area is only about 4' x 6'
08:11 PM hazzy: Which is a pain because we cut a lot if 4x8 sheets for the sheet metal class, so we have to break them down with the shear first
08:14 PM CaptHindsight: and you probably can't modify the tank since it's leased or something
09:41 PM hazzy: CaptHindsight: No, we own the water jet, but for small parts it is very convenient being able to raise and lower the water level in a mater of seconds rather than minutes
10:42 PM XXCoder: CaptHindsight: fancy video
10:45 PM CaptHindsight: XXCoder: which one?
10:45 PM XXCoder: waterjet 5 axis
10:46 PM CaptHindsight: did you see the multi axis plasma tube cutters as well?
10:46 PM XXCoder: will watch earlier videos
10:47 PM XXCoder: this? https://imgur.com/gallery/l7HpO
10:48 PM XXCoder: or maybe https://www.youtube.com/watch?v=lTbFvM6HYMA LOL
10:49 PM XXCoder: honestly https://www.youtube.com/watch?v=hd6l82OZd0s is last link from you before I disconnected
11:47 PM monkeyisl: High,,, is there any ATC that's common for home cnc?.. or i'm dreaming
11:48 PM XXCoder: ATC?
11:49 PM XXCoder: aha toolchanger
11:49 PM XXCoder: nope so far I know of
11:49 PM monkeyisl: h...m right.
11:49 PM XXCoder: though you can .. kind of do it
11:49 PM XXCoder: though its bottoming out so not really safe
11:49 PM monkeyisl: the problem is spindle head mount..
11:51 PM XXCoder: theres lower bound on machine size for autochange
11:51 PM XXCoder: though officemill at work manages it and its really tiny lol
11:52 PM monkeyisl: i'm thining at least 1.5K toolchanger
11:52 PM XXCoder: its cat toolholder can be enclosed completely in my hand (assuming no tool attached yet)
11:53 PM monkeyisl: i mean 1.5K spindle power.
11:54 PM monkeyisl: xxcoder : u got google keyword?
11:54 PM XXCoder: toolchanger? dunno what machine you have?
11:58 PM monkeyisl: i don't have any yet. i'm bulding
11:59 PM XXCoder: ahh ok