#linuxcnc Logs

Nov 26 2017

#linuxcnc Calendar

02:01 AM Deejay: moin
02:40 AM rene-dev: hazzy ah, cool.
02:41 AM XXCoder: https://www.youtube.com/watch?v=AXQmnm7YqWo
02:41 AM XXCoder: good prank
02:47 AM gloops: man, a few sessions away from having a rolling chassis, but at weekends only that turns into weeks
02:47 AM XXCoder: and weeks to years
02:47 AM XXCoder: years to lifetime
02:47 AM XXCoder: ;)
02:48 AM archivist: evenings!
02:48 AM XXCoder: yo
02:48 AM gloops: can do some stuff in the evenings
02:48 AM archivist: I can do stuff any time!
02:49 AM XXCoder: aka unemployed?
02:49 AM gloops: you dont always feel like starting in the evening, and then youre liable to rush it and not do it right
02:50 AM gloops: patience will have to prevail
02:50 AM gloops: stuff like moving the electrics over ill do at night
02:54 AM miss0r: mornin'
02:54 AM archivist: XXCoder, retired
02:55 AM XXCoder: ah the other kind of unemployed ;)
02:55 AM XXCoder: hopefully I will have that kind evenually
02:55 AM XXCoder: hey miss0r
02:55 AM miss0r: hey, what you up to?
02:56 AM XXCoder: just relaxing. long weekend lol
02:56 AM miss0r: I hear'ya
02:57 AM miss0r: I'm not realy in any condition to work machinery today. So I thought I'd do some cleaning (30th birthday for a friend of mine last night)
02:57 AM XXCoder: too much sauce that day?'
02:59 AM miss0r: Yeah. but we were somewhat elegant about it. We had a beer tasting. Starting with very light beer, moving up the ladder. ending on some odd 15% dark porters'n stouts
03:00 AM miss0r: Atleast, the 15% one is the last one I remember
03:01 AM miss0r: nonetheless. I always feel i've wasted a weekend
03:02 AM XXCoder: hah I bet you wasted it way less than I waste mine all weekends
03:03 AM gloops: its ok in moderation, i feel the same about wasting the next day but a good session occassionally is good for the psyche
03:03 AM miss0r: When ever I get lured into going to a pub to grab a beer it sounds like a good idea. But during the evening I can't help feel like I could've done something constructive instead
03:04 AM miss0r: gloops: Yeah. Back when I was 18ish, I did this every weekend. Now I do it 3-4 times/year
03:04 AM gloops: if you never have a break from work you probably end up doing less in the long run
03:05 AM XXCoder: never drank once, let alone to blackout
03:05 AM gloops: same here miss0r, i get asked a bit but rarely go, the mrs will eventually persuade me to go out and have a change
03:05 AM XXCoder: just dont appeal to me.
03:05 AM miss0r: gloops: Yep. same goes for me
03:06 AM miss0r: XXCoder: You're the lucky one ;)
03:06 AM XXCoder: meh
03:08 AM archivist: I stopped the pub when work got too busy
03:08 AM archivist: never felt the need to go boozing since
03:09 AM miss0r: Thats the way it goes for some. Its good for your health, i'm sure
03:09 AM XXCoder: well theres interesting reserach that shows small amount of wine is good
03:09 AM XXCoder: other for beer
03:09 AM miss0r: At the moment I'm watching a video on doing curved glued beams. (I need to make one for when I tear down a load bearing wall, so I can join the kitchen and living room in the house)
03:09 AM XXCoder: yet another for coffee. I probably will die early due to lack of all that lol
03:09 AM miss0r: XXCoder: They just debunked that idea about the glass wine/day
03:10 AM XXCoder: oh ok
03:10 AM archivist: get an rsj, industrial look
03:10 AM gloops: the mediterranean diet is supposed to be the best for health
03:10 AM miss0r: Something about it being good for blood circulation. Now new research shows the chance of cancer it induced by far outweighs the small improvements in bloodflow :)
03:11 AM miss0r: The scandinavian diet is one of the worst :D but I do like it
03:11 AM gloops: garlic, tomatoes and red wine
03:11 AM miss0r: pork, fatty sauce & beer
03:12 AM gloops: they flipped back on the animal fat i see - now its better for you
03:12 AM miss0r: lol
03:18 AM miss0r: Hmm. I wonder where I can get some proper thin boards I can use to make a curved glued wood beam. I don't own a wood planer, so I need to get something close to the dimensions I need form the getgo
03:18 AM miss0r: form=from
03:19 AM gloops: is it going to be seen?
03:19 AM miss0r: yeah
03:19 AM archivist: I think that is something you get made with the right wood as it is structural
03:20 AM archivist: the makers have all the right clamping too
03:20 AM gloops: in the old days they would pick tree sections with bends and cut from that, but laminating a large piece isnt so easy
03:20 AM miss0r: The problem is; The wall i'm taking down is only 100mm thick (one brick) and it is a load bearing wall. I would love to put in some steel, but acording to construction code, I need to insulate the steel with drywall
03:20 AM gloops: how you gonna clamp it?
03:20 AM miss0r: With alot of clamps :)
03:21 AM miss0r: on a welding table, with the "stops" set to the right positions to force it into place
03:21 AM gloops: hmm that could work
03:21 AM archivist: slight over bend for spring back
03:21 AM miss0r: I think it could. And i'm not too worried about it taking alot of time to build, as I'm only gonna need to build one
03:22 AM archivist: it has to be right though
03:22 AM gloops: bandsaw probably best for ripping thin lengths
03:22 AM miss0r: archivist: yeah. We'll see how it turns out :)
03:23 AM gloops: wood with grain running the entire length best, few knots as possible, pine doesnt like bending
03:23 AM archivist: I do understand the do it myself thing though
03:23 AM miss0r: gloops: I was realy hoping to just buy something suitable for the task
03:23 AM miss0r: as in: not having to thin it down myself. perhaps I should go have a word with the local wood mill
03:24 AM gloops: probably better going to a place with cutting i bet 1 in 20 pieces from a diy place isnt suitable
03:25 AM miss0r: Yeah :D hehe. around here we have a name for the wood planks you can buy at the local hardware store. Roughly translates to 'propeller wood'
03:25 AM archivist: the wood used fro structural may have been dried properly not the kiln dried junk
03:26 AM miss0r: archivist: That is also a concern. I also need to read up on what glue to use - I don't want a structural beam inside my house to start delaminating on me
03:32 AM gloops: could put some bolts through it - countersunk and plug over them
03:36 AM miss0r: That is going to happen, as it needs to be bolted to the underside of the beams running across the wall i'm tearing down :)
03:39 AM archivist: resin glue and finger joints https://en.wikipedia.org/wiki/Glued_laminated_timber
03:40 AM miss0r: ... It just dawned on me, that I need to sit down. I will go back into the house. See you around guys ;)
04:05 AM XXCoder: wow https://www.gmto.org/gallery/mirror-lab/
08:46 AM IchGucksLive: hi
08:48 AM R2E4: Hi
08:52 AM IchGucksLive: R2E4: not mutch traffic today
08:53 AM R2E4: yeah, ready to power up a bridgeport, after ripping guts out and putting mesa and viper drives
08:53 AM SpeedEvil: Good luck.
08:55 AM monkeyisl: R2E4 : servo motors?
08:55 AM R2E4: dc servos
08:56 AM monkeyisl: viper is the driver?
08:56 AM R2E4: I purchased viper drives for it.
08:56 AM R2E4: and mesa cards
08:57 AM R2E4: it had contraves in it.
08:58 AM monkeyisl: u mean controller?
08:59 AM R2E4: no, it had Boss 9 controller with contraves drives
08:59 AM R2E4: I ripped all that out and put mesa
08:59 AM monkeyisl: ahh
08:59 AM monkeyisl: what machine is it?
08:59 AM monkeyisl: before you upgrade
08:59 AM monkeyisl: i mean brand or cnc machine's name
09:00 AM R2E4: bridgeport R2E4 boss 9
09:00 AM monkeyisl: contraves looks ancient lol
09:01 AM R2E4: The machien was built in 1984
10:08 AM enleth: R2E4: is that the machine you asked about regarding drive enable and e-stop?
10:09 AM R2E4: enleth: yes
10:09 AM enleth: how did you solve it?
10:10 AM R2E4: applying power to the drives when machine-is-on ios true
10:10 AM R2E4: estop cuts power to the drives
10:10 AM R2E4: drive alarm cuts power to drives
10:11 AM R2E4: no drive alarm fires estop
10:11 AM R2E4: Which cuts power to the drives
10:11 AM gloops: any examples of hand coded 5 axis? a link, andypugh posted one a while ago but lost it
10:15 AM Loetmichel: *boooarpssss* wike made tagiatelle bolognese... as usual she miscalculated the amount of sauce needed for the amount of noodles at hand... http://www.cyrom.org/palbum/main.php?g2_itemId=14208&g2_imageViewsIndex=1 ... but tasty it is indeed!
10:15 AM Loetmichel: wife
10:17 AM Tom_itx: http://linuxcnc.org/docs/ja/html/motion/5-axis-kinematics.html
10:17 AM Tom_L: gloops probably not what you're looking for but related...
10:19 AM gloops: thanks Tom
10:19 AM monkeylcnc: weird i'm on pncconf motor configuration page, i choosed "custom" as driver type; but all max value is 5000.
10:19 AM monkeylcnc: direction hold : 5000 ns max..
10:21 AM archivist: gloops, I can probably find something I have done
10:22 AM archivist: what are you looking for
10:23 AM gloops: just an example, someone doubts it can be done, ive seen some heh
10:24 AM gloops: (its not for any important studies)
10:26 AM Tom_L: does a pulley with the grub screw in the teeth wear the belt more than one with a hub and the screw in the hub?
10:26 AM monkeylcnc: i can't type "motor steps per revolution: 4000" max value is 1000
10:27 AM monkeylcnc: i mean ican't set to 4000.
10:28 AM archivist: monkeyisl, have you set something further up? or may be a bug
10:28 AM gloops: dont know Tom, something i though about for something i was going to do, but got some other pulleys now
10:30 AM archivist: gloops, here is a magic line for 4 axis, the other is static during the move G1 F4 x[0-#4] a[0-#5] z#6
10:33 AM gloops: thanks ill have a good look at that
10:33 AM archivist: actually the vid of that cutting is on my channel
10:34 AM archivist: most of my code is sitting on the other box, have to go fetch
10:35 AM archivist: https://www.youtube.com/watch?v=HAtziCsUj5Q
10:35 AM gloops: nah dont go to any trouble, the person wont be writing his own code i dont think
10:35 AM archivist: that has B bolted, later would add B to code
10:35 AM gloops: there is a lack of 5 axis code generators free or affordable, mastercam is 5-8k
10:35 AM gloops: i think fusion 360 does some but only if you subscribe
10:36 AM archivist: that line comes from http://www.archivist.info/cnc/milled_helical_n_teeth.ngc
10:38 AM archivist: because the machine was 4 axis at the time B is not there and set, often 5 axis code is only 3 axis tilted/offset by 2 static axes
10:39 AM archivist: my bevel code is more hairy, need to get that from the other box
10:39 AM gloops: yeah, 2 rotating axis that remain static during a 3 axis cut more or less
10:40 AM gloops: the real nightmare for coding happens when the rotaries are continuous
10:40 AM gloops: (i would guess)
10:41 AM archivist: the rotary in the helical or worm making is rotating while the others move, its just maths and setting end points
10:43 AM gloops: i only did 0 level maths, i dont know beyond that
10:44 AM archivist: my maths was not so hot so I do it in small steps and reading books http://www.archivist.info/gear/designbevel.php
10:45 AM archivist: that outputs the constants the gcode uses
10:46 AM archivist: if you can think of the coordinated moves then realising in gcode should be possible
10:47 AM gloops: i worked out simple stepping of rotary axis when i had a proper look at it, you can unpick a pretty complicated 3 axis routine and step it at the end of a cut to project something onto a cylinder
10:48 AM gloops: like where a drawing has been sliced up into lines of cutting, step axis 4 at the end of each line
10:49 AM gloops: and so, to cut a thread say, you need 4th to step relative to X movement, say
10:55 AM gloops: that is probably the key archivist - if you can think of the moves
10:57 AM archivist: I just backed up the other box, so long ago trying to remember which file it was
11:00 AM archivist: gloops, http://www.archivist.info/5axis/ncfiles/gears/g_gleason_bevel_n_teeth.ngc
11:02 AM archivist: and related images http://www.collection.archivist.info/searchv13.php?searchstr=pd+bevel
11:03 AM gloops: once you know the syntax of this, its a bit like 'basic' on the old bbc computer?
11:03 AM archivist: generates an involute bevel teeth
11:03 AM archivist: assembly language!
11:04 AM archivist: terrible syntax in places :)
11:04 AM gloops: subroutines, while etc
11:05 AM archivist: I do try to leave comments in
11:06 AM gloops: well i meant the syntax of g code, not yours lol
11:09 AM archivist: I am stepping a and b in that code then cutting in one slot many times to get the curve, so finished cut is 5 axis but made up of straight cuts at funny angles
11:10 AM archivist: if you find a gleason gear cutter on yt you will realise what is happening
11:11 AM archivist: bevel gear
11:20 AM gloops: ill have a closer look in a while thanks, im pretty much 6 or more months behind with this aspect of cnc - for building the wrong machine first time, time spent again building a machine instead of learning this
11:20 AM archivist: usually only need to learn something when doing
11:31 AM Tom_L: neoprene belt with fiberglass cords or neoprene belt wiht kevlar cords?
11:32 AM gloops: kevlar stronger when stretched i think
11:32 AM Tom_L: or urethane belt with kevlar
11:32 AM Roguish: kev cords are stiffer.
11:32 AM Tom_L: meh, they don't offer kevlar in the length i need
11:33 AM Roguish: big difference between 'stiffness' and 'strength'. not interchangable properties
11:33 AM gloops: carbonfibres stiffest, fibreglass stronger, kevlar strongest under a stretch load, if i remember right
11:33 AM Tom_L: what about polyurethane vs neoprene?
11:33 AM Roguish: https://en.wikipedia.org/wiki/Stiffness
11:34 AM Roguish: https://en.wikipedia.org/wiki/Strength
11:36 AM Roguish: polyurethane and neoprene, and others can come in difference shear strengths, which is what's important in timing belts. the individual teeth are in shear under load.
11:36 AM gloops: cant speak from experience on that Tom,
11:36 AM Roguish: i generally go to polyurethane
11:37 AM Tom_L: urethane/kevlar it is then
11:37 AM Roguish: good call.
11:37 AM Tom_L: either way i doubt i wear it out
11:38 AM Tom_L: and of course they don't have it in their catalog
11:38 AM Roguish: watch the tension. high tension good for performance, bad for life.
11:38 AM Tom_L: right
11:38 AM Roguish: what manufacturer?
11:39 AM Tom_L: probably gates, i'm not sure
11:39 AM Roguish: size?
11:39 AM Roguish: I like Breko
11:39 AM Tom_L: 3/8 wide xl series 80 81 tooth
11:39 AM Roguish: https://www.brecoflex.com/
11:40 AM Roguish: Breco also has a really good sizer.
11:58 AM IchGucksLive: hi
11:58 AM Tom_L: ich
11:58 AM Deejay: du?
11:59 AM Deejay: hi ^^
12:07 PM monkeyisl: 0x00001388 hm2_5i25.0.stepgen.00.steplen , it's 5000 in decimal, but I scoped my step signal, it's always up to 2.5us ... what's wrong ?
12:08 PM monkeyisl: if it's less than 2500 then it shows corret timing. but
12:08 PM monkeyisl: my system step signal is no longer than 2500ns...
12:09 PM monkeyisl: halp
12:10 PM monkeyisl: i scoped step+ signal
12:14 PM monkeyisl: pcw_home are you there?
12:19 PM IchGucksLive: monkeyisl: hm2_5i25.0.stepgen.00.step_type 0
12:19 PM IchGucksLive: hm2_5i25.0.stepgen.00.control-type 0
12:19 PM IchGucksLive: monkeyisl: is this correct
12:19 PM monkeyisl: chekcing
12:21 PM monkeyisl: step_type 0, but i can't find control-type param
12:23 PM monkeyisl: http://linuxcnc.org/docs/html/man/man9/stepgen.9.html there is no control-type param
12:23 PM monkeyisl: what you mean?
12:24 PM pcw_home: that's the manual page for the software stepgen
12:24 PM monkeyisl: ahh K
12:26 PM monkeyisl: what i'm failed?
12:27 PM pcw_home: the software stepgen is basically the same but has ctrl_type instead of control-type
12:28 PM monkeyisl: i just used pncconf
12:28 PM monkeyisl: and launched lcnc, and opend a console and tped halcmd show params
12:29 PM monkeyisl: Should I manually set my driver? because it's not in the list?
12:29 PM monkeyisl: if i set custom pncconf.py or whatever just limit all value to 5000.
12:31 PM monkeyisl: i mean if it set my motor type as custom, i can't change avlue up to larger than 5000,
12:31 PM monkeyisl: those could be some h/w problem on my mainboard or it shouldn't i'm on pcie board.
12:33 PM pcw_home: Once you have a working hal/ini file set I would just edit them by hald
12:33 PM pcw_home: hand
12:34 PM monkeyisl: i see
12:34 PM pcw_home: If you get 2.5 usec step pulses and you have set the pulse length as 5 usec you probably have the 6I25 clock jumpers set wrong
12:35 PM monkeyisl: oh
12:36 PM monkeyisl: but i mean whatever i set it's max to 2500
12:36 PM monkeyisl: let me check
12:36 PM monkeyisl: Note that 33MHz must be selected to be able to use 5I25 bitfiles,
12:36 PM monkeyisl: what...
12:37 PM monkeyisl: 66 MHz must be selected in order use 6I25 bitfiles.
12:37 PM monkeyisl: actually i'm on 6i25 so 66mhz isn't ok?
12:37 PM monkeyisl: but bitfile says 5i25... confused
12:38 PM monkeyisl: mesanet has bitfile name as 5i25 for 6i25 card,
12:38 PM monkeyisl: checksum is exactly same
12:39 PM pcw_home: most bitfiles are for 5i25, to run a 5i25 bitfile on a 6i25 you must set the 6I25s clock speed to 33 MHz
12:39 PM monkeyisl: The 6I25 can be completely software compatible with the 5I25 if 5I25 bitfiles are
12:39 PM monkeyisl: loaded in the 6I25's EEPROM, and its PCI clock is set for 33 MHz. This is the current
12:39 PM monkeyisl: default setup of 6I25 cards. Configured this way, the 6I25 will report itself as a 5I25 and
12:39 PM monkeyisl: will be completely compatible with 5I25 software.
12:39 PM pcw_home: yep
12:40 PM monkeyisl: could i set it 66mhz and where could i download 6i25 bitfile/ LO
12:40 PM pcw_home: not worth it
12:41 PM monkeyisl: but almost no benefit for my sytsem right? k
12:41 PM monkeyisl: sry as usual i didn't rtfm carefully.
12:41 PM monkeyisl: time to fix
12:46 PM pcw_home: Yeah, its not worth maintaining two sets of bitfiles
12:46 PM pcw_home: I can make 6I25 bitfiles if really required but the advantages of the higher interface clock speed are minimal
12:49 PM monkeyisl: yup
01:06 PM andypugh: I was just looking at this hollow shaft harmonic actuator I have (FHA-25 if you want to google) and I realised that 6 of them with a ballscrew down the middle would be _perfect_ for a haexapod.
01:08 PM andypugh: The only thing I am struggling to visualise is how to prevent the ball-screw legs from rotating while allowing them to tilt. I guess the answer is a Hookes Joint at the actuator end.
01:09 PM andypugh: The other problem is affording the actuators. And the fact that I have no use for a hexapod.
01:09 PM malcom2073: If you build it, ideas will come
01:09 PM malcom2073: (Not really, but lie to yourself this time)
01:09 PM hazzy: Yeah, those actuators tend to be pricey!
01:10 PM gregcnc: a little slow maybe?
01:11 PM andypugh: https://www.nist.gov/sites/default/files/images/photogallery/octahedral_hexapod_machine.jpg
01:11 PM hazzy: If you need a universal join at then anyway, why not just drive the screw from that end? Do you really gain anything from using the actuators? (Other than coolness)
01:11 PM andypugh: Coolness is what matters here
01:12 PM hazzy: haha!
01:12 PM andypugh: Incidentally, that picture is one of the very first uses of EMC, which became LinuxCNC
01:13 PM andypugh: Answers on a postcard about why the image name says “octahedral”
01:14 PM andypugh: hazzy: You need a universal joint at both ends.
01:17 PM hazzy: andypugh: yes, I see now
01:25 PM gloops: never seen a cnc fretsaw
01:27 PM gloops: that would kill off a lingering hobbyist/professional community
01:28 PM gregcnc: there are cnc bandsaws
01:29 PM gloops: yeah have seen those
01:29 PM gloops: not profile or contour cutting though?
01:29 PM gregcnc: https://www.youtube.com/watch?v=ZwNa6JPVbk0.
01:29 PM andypugh: I had a quick look for the alternative name (CNC scrollsaw) and didn’t find much either.
01:30 PM IchGucksLive: Gn8
01:30 PM gloops: no real need with lasers, but would probably be a lot cheaper and safer - run off stepper motors and plywood frames etc
01:32 PM gloops: hmm clever gregcnc
01:32 PM malcom2073: Thats pretty cool
01:32 PM gloops: they use old sewing machine parts to make fretsaws
01:34 PM gloops: rotary on the blade then x and y
01:34 PM gloops: (the bandsaw)
02:04 PM nallar is now known as Ross
02:32 PM JT-Shop: hi
02:33 PM pfred1: lo
02:35 PM Tom_L: back home ehh
02:36 PM JT-Shop: aye
02:39 PM gloops: thinking about it, a fret/scroll saw would be something of a challenge
02:39 PM gloops: youd need a rotating synchronised with x/y movement
02:40 PM gloops: rotating table
02:40 PM pfred1: scroll sawing is kind of weird
02:40 PM gloops: dunno though, how do drag knifes work, similar thing
02:41 PM pfred1: I cut this with a scroll saw https://i.imgur.com/Y6WSMdL.jpg
02:41 PM gloops: friction controlled blade direction
02:42 PM gloops: they are one of those machines that do things other machines find very awkward to do pfred1
02:42 PM pfred1: well I have to cut sideways a lot with a scroll saw to make curves
02:43 PM gloops: that is very deep for a scroll saw
02:43 PM pfred1: the way the blade can drift is just not entirely predictable
02:43 PM pfred1: yeah this was the limit for my saw
02:43 PM pfred1: I cut it pretty slowly
02:45 PM pfred1: 1.89 inches thick it's right on my desk here with me along with some calipers
02:45 PM gloops: whats the material insulation foam?
02:45 PM pfred1: it is HDPE plastic
02:46 PM gloops: ahh, that is some density then
02:46 PM pfred1: oh yeah it is a solid piece
02:47 PM pfred1: I am making a plunge router base for one of my routers
02:48 PM gloops: with the plastic?
02:48 PM pfred1: yes
02:48 PM pfred1: the rods are steel though
02:48 PM gloops: im going to be looking at an injection molder next year, router will be able to cut the dies from ally
02:49 PM pfred1: I have to try cutting some aluminum on my CNC someday I'm sure it can do it
02:49 PM Tom_L: i tried to link one to you a dude made but his page seems lost
02:50 PM gloops: Tom injection molder?
02:50 PM Tom_L: yes
02:50 PM Tom_L: kenneth maxon if you can find it
02:51 PM pfred1: redneck Harold made one
02:51 PM gloops: yeah, i looked into it a bit before, the machine looks pretty doable, but without anything to cut the molds, youre pretty stuck
02:51 PM Tom_itx: https://hackaday.com/2009/08/12/home-injection-molding/
02:51 PM Tom_L: found it there
02:51 PM Tom_L: his page is lost though
02:51 PM pfred1: there's people that make filament extruders too
02:52 PM pfred1: you can try google cache
02:52 PM pfred1: I don't think it saves images though?
02:53 PM gloops: that looks a pretty advanced diy molder, the auto eject is a good thing, if you can automate it you got a commerically viable machine probably
02:53 PM Tom_L: he doesn't do anything half arse
02:54 PM pfred1: I do everything half assed
02:54 PM Tom_L: just wish his page was still around
02:54 PM gloops: recycled plastic is free
02:54 PM pfred1: I get mor done that way
02:54 PM gloops: all the core or band heaters are cheap on ebay
02:54 PM pfred1: perfection is the enemy of good enough
02:54 PM gloops: lol
02:55 PM pfred1: you still have to process plastic
02:55 PM gloops: shred it?
02:56 PM pfred1: I saw a guy on YouTube that used a leaf shredder
02:56 PM pfred1: melting plastic I've found that you don't want to fluff the plastic up too much
02:56 PM gloops: a planer will reduce quite a lot of plastic to fine shavings
02:57 PM pfred1: then it acts more like insulation and with all the surface area in contct with air as it melts it gets funny
02:57 PM pfred1: yeah you don't want fine shavings
02:57 PM gloops: thats true with melting metal too
02:57 PM gloops: so you want chips?
02:57 PM pfred1: people think you do but it gets funny I got a picture
02:58 PM gregcnc: pellets
02:58 PM gloops: yes if you buy it its in pellet form
02:58 PM pfred1: yeah pellets are not shreddings
02:59 PM pfred1: the surface area of them is actually optimized
02:59 PM gloops: what you want is a larger cylinder to get some quantity pre heated, and feed that into the ram
02:59 PM pfred1: have a look at these blocks http://i.imgur.com/K4lNH7B.jpg
03:00 PM pfred1: can you tell which one i made out of mill swarf?
03:00 PM gloops: the squidgy one?
03:00 PM pfred1: nope that one was annealed
03:00 PM Tom_L: why is it white?
03:00 PM pfred1: I melted that one twice to relieve stresses in it
03:01 PM pfred1: these are all made out of water jug plastic
03:01 PM pfred1: which is translucent
03:01 PM pfred1: it has no dye in it
03:01 PM Tom_L: oh i thought we were still on aluminum
03:02 PM pfred1: to dye HDPE they put in a binder which changes the properties of the plastic
03:02 PM pfred1: stuff to make the color stick
03:02 PM gloops: a tip on casting ally, do not try using stone as a mold - i had a pretty violent explosion - good job i was stood well back
03:02 PM Tom_L: too much moisture in it
03:02 PM gloops: yes
03:02 PM pfred1: well green sand is moist
03:03 PM gloops: sand can move
03:03 PM pfred1: there's the differene
03:03 PM Tom_L: so can rock :D
03:03 PM Tom_L: just a bit more violent
03:03 PM pfred1: ever see them lance carve rock?
03:03 PM gloops: i wish id took some pics, would be a good warning
03:04 PM gloops: about half an inch of the rock erupted - proper bang and shower of ally shrapnel
03:04 PM Tom_L: tidy whities change color?
03:04 PM gloops: half inch layer
03:05 PM gloops: lol you arent kiddin
03:05 PM gloops: went to half inch steel plate mold - no problems
03:06 PM Tom_L: pulleys on the way now
03:07 PM gloops: must be getting close Tom if the pulleys are on order
03:07 PM Tom_L: i think most of what i need is in the works now
03:08 PM Tom_L: we'll see if things ship out as planned
03:09 PM gloops: not seeing that pfred1 on youtube
03:09 PM pfred1: they call it torch rock carving
03:10 PM pfred1: I haven't found a video as good as what I've seen elsewhere myself
03:10 PM pfred1: I've seen guys blow chunks off rocks with rock torches
03:11 PM Tom_L: years back a fuel tanker caught on here and popped the top layer off the road/bridge
03:11 PM gloops: https://www.youtube.com/watch?v=st82EHYTxNA < id be pretty reluctant to do that knowing what i know now
03:12 PM pfred1: the real ones are long pipes
03:12 PM gloops: i knew concrete shattered under heat, thought stone would be safe, have used rocks to build like campfires and stuff never seen any reaction
03:13 PM pfred1: this video sucks but this guy has a pro rock torch https://www.youtube.com/watch?v=iYCyHNysMKY
03:15 PM gloops: thats like a cutting lance they use in the scrapyards
03:15 PM pfred1: yeah its crazy stuff
03:17 PM gloops: i guess i used the wrong rock, sandstone is in stratas, if the top layer has to expand quickly, but the underneath layers cant - something has gotta give
03:17 PM pfred1: we don't have any rocks where I live now
03:18 PM pfred1: we have sand, but no stone
03:18 PM gloops: no rocks?
03:18 PM pfred1: nope you can dig all day long here and never see a rock
03:19 PM pfred1: the most you'll find is pebbles
03:19 PM gloops: is this the desert - arizona or somewhere?
03:19 PM pfred1: Delaware it is run off
03:20 PM pfred1: rocks are actually crazy expensive here
03:20 PM pfred1: a pile on a pallet costs like $300
03:20 PM pfred1: not a very big pile either
03:20 PM gloops: funny you dont think of things like that when you live in a rock place
03:21 PM pfred1: yeah where i come from we had mountains made out of solid rock
03:21 PM pfred1: I've thrown away so many rocks like a million dollars worth here
03:21 PM pfred1: all of the rocks on my property were brought here though
03:22 PM gloops: all the old houses here are built from stone, just whatever was laying around, thousands of miles of stone walls round the fields
03:22 PM pfred1: I sunk a 4x4 to hold something up and I dug a hole 4 feet down I didn't see a single rock
03:23 PM pfred1: yup there's none of that going on here
03:23 PM pfred1: no fieldstones
03:23 PM pfred1: I guess glaciers just didn't carry any rocks to here?
03:24 PM pfred1: there's a whole hardscaping industry here though where they sell rocks
03:25 PM pfred1: I went to one once and the sticker shock i got was huge
03:25 PM gloops: i dont live in a rural place like this but mainly - stone houses, stone barns, stone walls -http://media.gettyimages.com/videos/aerial-view-of-pastures-divided-by-drystone-walls-in-swaledale-in-video-id952-49?s=640x640
03:26 PM pfred1: I'm telling you little piles of rocks going for hundreds of dollars
03:27 PM pfred1: I live in a rural place
03:27 PM pfred1: there's probably not 20 people per square mile right around me
03:27 PM gloops: in north wales the stone is slate, everything is built from slate, some of the tiny villages just look really hard, hard landscape
03:28 PM pfred1: you live in Wales?
03:29 PM gloops: no, i used to go for visits, im from yorkshire
03:30 PM gloops: even the fences dont use wood - theyre slate - http://lowres-picturecabinet.com.s3-eu-west-1.amazonaws.com/115/main/16/373284.jpg
03:30 PM pfred1: ah so you're a hobbit?
03:30 PM gloops: not quite lol, archivist might be
03:31 PM pfred1: yorkshire famed for their pudding
03:31 PM gloops: cant beat it
03:32 PM pfred1: what's not to like?
03:33 PM pfred1: I follow some YouTubers from Wales and there abouts
03:33 PM pfred1: I am fascinated with shed life
03:34 PM gloops: id move to wales tommorrow, mrs wont go
03:35 PM pfred1: there's something i find very romantic about people tinkering in their garden sheds
03:36 PM gloops: everything starts in a garden shed
03:37 PM pfred1: hre people do it but not like in England
03:37 PM gloops: the 'cottage industry' was the backbone of the economy here for a long time
03:38 PM pfred1: its just on another level there
03:39 PM gloops: when spinning wheels are hand operated you may as well let people work at home, each household turning out a small amount of wool or garments, but when you get big machines and power sources, you bring the people to them
03:40 PM pfred1: I have a spinning wheel here i need to rebuild
03:40 PM pfred1: if i can get them working again they fetch good money
03:40 PM pfred1: there's people around here that keep sheep and spin
03:41 PM gloops: would think so yeah collectable now
03:41 PM pfred1: no they use them
03:41 PM gloops: still use spinning wheels?
03:41 PM pfred1: sure
03:41 PM gloops: but wool is a state of the art industry these days
03:42 PM pfred1: there's a big operation on the other side of town that I think the last wheel I fixed up went to
03:42 PM pfred1: well not that big but they have a good sized flock of sheep
03:42 PM gloops: better off keeping goats for small scale work
03:42 PM gloops: angoras
03:42 PM pfred1: people still do it by hand
03:43 PM pfred1: new wheels go for over a thousand
03:43 PM pfred1: fully functional and all of that
03:43 PM gloops: make the wheels lol
03:44 PM pfred1: companies make them
03:44 PM gloops: goat wool is a lot more expensive than sheep
03:44 PM pfred1: I have one I picked up that was converted into a decorative piece that I want to restore
03:45 PM pfred1: I need to make a whole bale mechanism for it though
03:46 PM gloops: https://www.ebay.co.uk/itm/Antique-Traditional-Spinning-Jenny-Wheel-Ash-Wood-Scottish-Handmade-Collectors/131550641074?
03:47 PM pfred1: I think the one i have now is a traveler style?
03:48 PM pfred1: ah a saxony wheel
03:49 PM gloops: https://www.ebay.co.uk/itm/ashford-traveller-spinning-wheel/132409287010?
03:49 PM gloops: cant say as im an expert on them
03:49 PM pfred1: it looks a lot like this https://i.pinimg.com/originals/c8/67/e2/c867e2f673f0ac477890a3270a886738.jpg
03:49 PM pfred1: like almost identical
03:50 PM gloops: thats a nice style
03:51 PM gloops: looking at the way the wheel is joined though, would think modern repro
03:51 PM pfred1: I need to make a new tightening mechanism for it and the flier
03:51 PM gloops: or americans didnt make wheels like us
03:52 PM pfred1: machining was pretty sophistcated even over 100 years ago
03:55 PM gloops: no i could be wrong, thinking the wheel was dowelled, maybe a half joint
03:55 PM pfred1: they used dowels way back when
03:56 PM gloops: oh yeah, dowels were common, if you make the frame from green wood and use dry dowels you get a strong joint, the green wood shrinks onto the dowel
03:57 PM pcw_home: Hmm the noise picture really looks like 60Hz hum
03:58 PM pcw_home: ( 3 cycles every 50 ms )
03:59 PM Tom_L: that was random... being on topic n all
03:59 PM pcw_home: sorry wrong tab...
03:59 PM pfred1: noise annoys
04:00 PM Tom_L: jk...
04:03 PM Deejay: gn8
04:04 PM pfred1: this is weird in CAD style I can't rotate a workpiece in FreeCAD
04:05 PM pfred1: I could swear it used to work what did I do?
05:09 PM -!- #linuxcnc mode set to +v by ChanServ
05:37 PM rene-dev: does anyone use the probe screen? It stopped working in master...
05:38 PM pfred1: got to hate when master quits probing
05:42 PM rene-dev: hm?
05:43 PM rene-dev: I also noticed, that master doesnt stop when the probe activates during jogging
05:44 PM pfred1: I bet
05:44 PM pfred1: what happened? I was fully constrained then everything wnt tits up
05:51 PM Tom_L: rene-dev, i wasn't aware there was a separate probe screen
05:51 PM Tom_L: is this something new?
05:52 PM Tom_L: nice work on the G33.1 btw
05:56 PM rene-dev: thanks :D did anyone ever test that on a real machine?
05:56 PM rene-dev: I have more planned, like tap recovery
05:56 PM rene-dev: but thats not so easy
05:56 PM rene-dev: IM talking about this screen: https://forum.linuxcnc.org/49-basic-configuration/29187-work-with-probe
05:57 PM Tom_L: i don't have anything to test it on atm
05:58 PM Tom_L: is that the gladevcp probe sim?
05:58 PM BeachBumPete: is this in Gmocappy?
05:58 PM rene-dev: its not sim, its supposed to work with real probes... and it did work well for a long time
05:59 PM rene-dev: works with gmocacpy or axis
05:59 PM BeachBumPete: wow awesome
06:00 PM rene-dev: https://github.com/verser-git/probe_screen
06:00 PM rene-dev: it hasnt been updated in a while
06:01 PM pfred1: I know the feeling
06:02 PM Tom_L: is this in master yet?
06:02 PM Tom_L: i saw a probe option in sim is why i wondered
06:03 PM rene-dev: no, its completley seperate
06:20 PM andypugh: Tom_L: It’s a third-part add-in.
06:37 PM Loetmichel: btw: is there a video that compares the look and feel of Gmocapy and axis?
06:37 PM rene-dev: https://www.youtube.com/channel/UCulC7EkwdYkaIHPo6rlkGQw/videos
06:37 PM rene-dev: but outdated...
06:40 PM Loetmichel: i meant a compairson of the two GUIs
06:56 PM Roguish: rene-dev: I've been trying to get Probe_screen to work with master. no such luck. left a note on the forum. no response from author.
06:57 PM rene-dev: Roguish I found this
06:57 PM rene-dev: https://forum.linuxcnc.org/49-basic-configuration/29187-work-with-probe?start=120#72816
06:57 PM rene-dev: but no idea if it works
06:58 PM Roguish: https://forum.linuxcnc.org/49-basic-configuration/29187-work-with-probe?start=150#100633
07:06 PM pfred1: I wish I knew how to debug software
07:23 PM Tom_L: pfred1 you throw a needle in a hay stack then you go lookin for it after you toss it about a bit
07:24 PM Tom_L: piece of cake..
07:27 PM pfred1: Tom_L yeah but I don't know what the needle I'm looking or even looks like
07:27 PM pfred1: or where the pile of hay is
07:29 PM pfred1: I was trying to figure out why this one program was crashing out on me and I ran strace on it and no clue what any of that was
07:30 PM pfred1: on the bright side I downloaded it, built it again, and now it works
08:12 PM Crom: ugh.. caps lock
08:13 PM Crom: had to close books in the door to make a gap for the wind to blow through
08:33 PM pfred1: quit ..
09:38 PM chopper79: Hello
09:39 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Z_Upright_Support.jpg
09:39 PM Tom_L: i think i'll mount my column like that so i can adjust it
09:40 PM hazzy: evening chopper79
09:40 PM hazzy: How are things going?
09:41 PM hazzy: Did you figure out what the problem with the 7i76e burning up was?
09:41 PM chopper79: Hello hazzy: things are going good so far. How about yourself
09:42 PM chopper79: No not yet, I need to send the boards to Mesa to get checked out, but put a 7i76 and a 7i92m in for now since they seem to work fine.
09:42 PM hazzy: I am doing well, trying to recover from a busy thanksgiving ....
09:43 PM chopper79: I am installing a linux kernal now and then getting prempt going. Then I hoep to try out your guui
09:43 PM chopper79: Yes thanksgiving was busy for sure. Still getting back into the groove myself
09:47 PM hazzy: We are having problems with getting the gcode back-plot to work in the new version of hazzy, I think we might have to give up on at least that part until GTK gets its act together
09:49 PM hazzy: The old version of hazzy (v0.1.0) works fine and is 99% functional, if you end up liking that version enough I can go back and finish some things up for you
09:51 PM chopper79: perfect... I will let you know. I need to get past this kernal build then I will be moving good I think
09:52 PM chopper79: hate it when you try to cd and terminal says no scuh file or directory. Then you ls and its sitting right there....
10:00 PM chopper79: Quick question... I am not able to make xconfig. Telling me to check Qt and that it was not found.
10:00 PM chopper79: Where do I grab this from?
10:03 PM hazzy: Over my head chopper, i hope somebody else will chime in.
10:05 PM chopper79: I am wondering if it is the qt-sdk that is needed?
10:12 PM chopper79: Think I have it figured out now. We will see in about 7mins
10:27 PM chopper79: well that did not work....still can not make xconfig
10:27 PM chopper79: wonder what I am missing?
10:32 PM roycroft: sweet
10:32 PM roycroft: https://www.aliexpress.com/item/1pcs-Remote-control-panel-1pcs-5m-extender-wire-prolong-cable-for-HY-variable-frequency-drive-Vfd/1824343966.html?spm=2114.search0104.3.1.HHpQa4&ws_ab_test=searchweb0_0,searchweb201602_5_10152_10065_10151_10344_10068_10130_10345_10324_10342_10547_10325_10343_10546_10340_10341_10548_5690020_10545_10541_10562_10084_10083_10307_10539_10312_10059_10313_10314_10534_10533_100031_10604_10603_10103_10594_10557_10558_1059
10:32 PM roycroft: ack, that's a fripping long url
10:32 PM roycroft: sorry
10:32 PM roycroft: but it is a remote panel for a huanyang vfd, with a frequency control pot on the remote
10:33 PM roycroft: my new vfd doesn't have the built-in pot, but my other ones do
10:33 PM MarcelineVQ: ali does that :X that's just a cable though isn't it, that's the normal panel and seat
10:33 PM hazzy: Hey, that is sweet! and the price is right
10:33 PM roycroft: it's the cable and the panel and the housing
10:33 PM XXCoder: controls for spindle eh
10:34 PM MarcelineVQ: yeah but the vfd comes with that panel that can be popped out
10:34 PM roycroft: yes
10:34 PM roycroft: however
10:34 PM roycroft: as i said, the one i just got does not have the frequency control pot
10:34 PM roycroft: and the one from aliexpress does
10:34 PM roycroft: plus it's easy to mount the aliexpress one, since it comes with the housing
10:35 PM roycroft: it's a really simple way to remote mount the control panel
10:46 PM roycroft: ha - and aliexpress gave me a $4 coupon, so it's even cheaper
10:53 PM MarcelineVQ: nice