#linuxcnc Logs

Apr 20 2019

12:15 AM gloops: 200 mile drive ahead to collect a spindle moulder :/
12:19 AM XXCoder: fun
12:19 AM gloops: seemed like a reasonable idea when i agreed haha
12:19 AM gloops: mostly motorway which is good, motorway system round north manchester is a bowl of spaghetti though, my reactions arent so sharp navigating these things, could end up anywhere
12:35 AM XXCoder: fancy
12:35 AM XXCoder: would be funny if your trip was longer, and you reached trip mile 666 as you entered a666
12:36 AM gloops: yeah milometer clicked onto 666..
12:36 AM gloops: then the sky gets dark
12:43 AM XXCoder: yep heh
12:55 AM Deejay: moin
02:30 AM XXCoder: hey milkii
02:30 AM XXCoder: miss0r:
06:16 AM jthornton: morning
06:36 AM Tom_L: morning
06:36 AM tiwake: blerf
07:00 AM Inline is now known as oleo
07:01 AM oleo is now known as Inline
07:06 AM Inline is now known as temporal_0
07:45 AM temporal_0 is now known as Inline
07:51 AM gloops: well i got my spindle moulder back!
07:52 AM gloops: buy of the year £60 for elektra beckum tf100
07:52 AM gloops: would work when woman tried it, got back, changed fuse in plug - runs like a dream
07:52 AM gloops: wouldnt
08:18 AM SpeedEvil: :)
09:11 AM gloops: https://www.reddit.com/r/dataisbeautiful/comments/6g2nnh/yearly_co2_emissions_for_the_top_10_emitting/
01:50 PM Joe_Hildreth: Hello all. I am working on an addendum to the video I put out on LinuxCNC and the parallel port. I would like to create a list of parallel port cards that work with (or don't work with) LCNC.
01:51 PM Joe_Hildreth: I have created a page to store this information on my website, that I am happy to copy to the wiki or elsewhere for everyone's benefit.
01:52 PM Joe_Hildreth: At this point I am trying to hammer out the details of what the list should include. I was thinking of the following:
01:53 PM Joe_Hildreth: Manufacturer, Model, Vendor ID, device ID, Chipset and notes. Anyone think this is enough fields, or should I consider more?
01:54 PM Joe_Hildreth: Here is a link to the stub page if anyone is interested.
01:54 PM Joe_Hildreth: http://www.myheap.com/cnc-stuff/linuxcnc-emc2/80-my-heap-articles/computer-numerical-control/linuxcnc/196-lcnc-parallel-port-cards.html
03:03 PM XXCoder: too bad guy left
03:03 PM pink_vampire: ?
03:03 PM XXCoder: or i'd have to0ld him theres wiki on parallel port cards
03:03 PM XXCoder: oh hey pink_vampire
03:04 PM pink_vampire: hi
03:05 PM XXCoder: hows things
03:06 PM pink_vampire: fine
03:06 PM XXCoder: same
03:07 PM pink_vampire: i need 4 bolts
03:07 PM jdh: make them!
03:08 PM pink_vampire: no
03:14 PM XXCoder: so whats 4 bolts for
03:22 PM jdh: to hold things together.
03:26 PM zmoo: i know i know.Any advice on Lead screw type for z axis, 350mm length, but does it matter what brand ACME, or china cold rolled C7
03:27 PM zmoo: it requires bolts or lead screws , bolts would be better for stability if machining
03:42 PM Deejay: gn8
04:04 PM roycroft: zmoo: contact linermotionbearings2008 on ebay
04:04 PM roycroft: he'll fix you up with exactly what you need
04:04 PM roycroft: er
04:04 PM roycroft: linearmotionbearings2008
04:14 PM zmoo: cool beans!
04:41 PM roycroft: the guy will custom make screws for you, to length, and turn the ends to whatever you need
04:42 PM roycroft: just email him and tell him what you need and he'll make a custom listing for you
04:42 PM XXCoder: 12" diameter, 2 feet long
05:08 PM andypugh: Humph! Disappointed.
05:08 PM XXCoder: whatw as diappointing?
05:08 PM andypugh: Don’t you hate it when you have a good idea but don’t make it well enough?
05:08 PM andypugh: https://photos.app.goo.gl/wGPR3f9aS8UjdQ199
05:09 PM andypugh: As you might guess, there is a fair bit of work in that.
05:09 PM andypugh: And if you look carefully, one of the widgets is broken, I must have got the heat treatment wrong.
05:10 PM tiwake: oh, on the center post
05:11 PM andypugh: (I can make new jaws, but I am not sure that the rest of it is good enough to ever work properly)
05:12 PM XXCoder: dunno you got some package to analynize stresses?
05:12 PM XXCoder: brb
05:13 PM andypugh: I think it would be OK with the right hardness. Before I hardened the jaws they worked, but bent a bit. So I heat treated (it’s tool steel) but probably didn’t temper enough.
05:16 PM tiwake: since its so small, just get pre-heat treated stuff and grind the things in
05:27 PM andypugh: I don’t have anything to grind with, especially not on that scale. The central hexagonal expander bit is 3.6mm across flats.
06:19 PM pink_vampire: andypugh: what is that device?
06:20 PM andypugh: It’s a widget for expanding the ends of small tubes.
06:21 PM pink_vampire: to make a hex from round tube?
06:22 PM andypugh: pink_vampire: Underneath: https://youtu.be/FBcEJLWVBtY
06:22 PM andypugh: To make a bigger hex from hex tube.
06:23 PM pink_vampire: i think something like a form tool that go inside is the way to go
06:26 PM andypugh: How do you get it in?
06:27 PM pink_vampire: push it in
06:27 PM andypugh: And how do you then get it out?
06:28 PM andypugh: These are very thin-wall delicate tubes. And they need to remain straight.
06:32 PM pink_vampire: just push it it on, and pull it with a screw
06:37 PM andypugh: The tubes are 300mm long, 0.15mm wall thickness. I think the tool needs to expand in-situ then compress.
06:39 PM andypugh: The conventional approach would be a split mandrel with a cone pulled up the middle. But it’s all a bit tiny really. I was hoping that my widget would be easier to control the final dimensions with. But that was when it was an idea in my head rather than the slightly wonky final realisation that I achieved in metal.
06:45 PM pink_vampire: just make it smaller
06:47 PM andypugh: I am not very good at tiny things. My machine has 0.05mm backlash, and that starts to matter at this sort of scale.
06:49 PM andypugh: On a larger scale I would make a hexagon and cut slits in it. But that won’t work here, as even my thinnest slitting saw leaves almost no hex.
06:50 PM andypugh: So I would have to make 6 tiny trangles, and think of a way to machine the taperd hole in the middle.
06:51 PM andypugh: I am not saying that it is impossible, but it isn’t the fun that this scroll chuck idea was.
06:54 PM Tom_L: :(
07:00 PM andypugh: And thinking about it, if I have a hole in the middle for the expansion cone, there is even less material in the petals (though they are better supported)
07:01 PM andypugh: Anyway, that’s the end of my workshop time for this easter break, back to re-roofing that shed tomorrow and Monday.
08:53 PM pink_vampire: https://i.imgur.com/vKflRax.jpg
09:13 PM XXCoder: making replacement part?
09:33 PM pink_vampire: XXCoder: no, just cleaned it
09:34 PM pink_vampire: more then 100 parts to go..
09:34 PM XXCoder: dang
09:37 PM pink_vampire: it is going to take alooot of time
09:41 PM XXCoder: paid?
09:43 PM pink_vampire: no
09:43 PM pink_vampire: it the mill head for the lathe
09:43 PM XXCoder: oh 100 different parts
09:43 PM XXCoder: was thinking it was a job lot of 100 of same part
09:44 PM pink_vampire: no..
09:44 PM pink_vampire: there is some broken part
09:47 PM pink_vampire: each screw get cleaned and re thread
09:48 PM XXCoder: fixing your lathe and rebuold eh? nice :)
09:49 PM pink_vampire: https://www.ebay.com/itm/Emco-Maximat-7-Lathe-Vertical-Milling-Attachment-/163626750142?hash=item2618ea10be%3Ag%3AWk8AAOSwPIxcoWXN&nma=true&si=ub371PVulXUKjLT55QKwgVYeT0U%253D&orig_cvip=true&nordt=true&rt=nc&_trksid=p2047675.l2557
09:51 PM pink_vampire: this is what i got
09:51 PM pink_vampire: and now re build it
09:51 PM XXCoder: lathe attachment for your mill?
09:51 PM XXCoder: its visiually confusing so not clear
09:52 PM pink_vampire: lol no
09:52 PM pink_vampire: you are a full time machinist
09:53 PM pink_vampire: this is a mill attachment for a lathe
09:53 PM XXCoder: ahh making lathe into lathe/mill combo?
09:53 PM pink_vampire: correct
09:53 PM pink_vampire: it is bolted to the back of the bed
10:11 PM jdh: I got an R8 lathe chuck for my G0704. Don't think I ever took it out of the package
10:11 PM pink_vampire: R8 lathe chuck???
10:11 PM jdh: mini-lathe 3 jaw chuck on an R8
10:11 PM pink_vampire: not 5c??
10:12 PM pink_vampire: i see
10:12 PM jdh: no. just a 3 jaw.
10:13 PM pink_vampire: i need an ultrasonic cleaner
10:13 PM jdh: good for hard to reach parts but mechanical scrubbing is much more efficient
10:14 PM pink_vampire: the milling head is just packed with grease all over
10:17 PM jdh: solvent parts washer would rock
10:18 PM jdh: my ultrasonic cleaner seems to have weakened with age also.
10:32 PM roycroft: i has 2x72 belt grinder!
10:32 PM roycroft: i powered it up with a belt mounted for the first time this evening
10:33 PM XXCoder: ultrasonic seem to be good idea yeah
10:33 PM roycroft: it runs smooth and quiet, and tracks perfectly
10:33 PM pink_vampire: i need to clean small stuff like set screw holes
10:33 PM * roycroft has a couple ultrasonic cleaners, and hasn't used his parts washer in ages
10:33 PM pink_vampire: how is the HF ultrasinic?
10:34 PM pink_vampire: there is 25% right now
10:35 PM pink_vampire: maybe roycroft want to donate one??
10:36 PM roycroft: i use this kind?
10:36 PM roycroft: :
10:36 PM roycroft: https://www.ebay.com/itm/162978655607
10:36 PM roycroft: i have a 2L and a 30L
10:36 PM roycroft: and i use them both constantly
10:36 PM roycroft: if you get one, here's a tip:
10:36 PM roycroft: just use plain water in the ultrasonic cleaner itself
10:37 PM pink_vampire: the hf is 2.5 and 160w
10:37 PM roycroft: if you need to use a solvent or simple green or something put it in a jar, put your parts in the jar, and set the jar in the basket
10:38 PM roycroft: the hf one is plastic
10:38 PM roycroft: the ebay ones are cheaper and ss
10:40 PM pink_vampire: seams like the hf is not so bad, and the inside is metal
10:45 PM roycroft: if your environment can tolerate a plastic enclosure it might be fine
10:45 PM roycroft: mine's in my shop and a lot of stuff happens there
10:45 PM roycroft: they're vulnerable to being bumped and stuff
10:45 PM roycroft: so the metal enclosure is a big feature for me
10:45 PM pink_vampire: O_O not going to happen here
10:46 PM pink_vampire: i just want it to work
10:46 PM roycroft: the hf one you can try out and if you don't like it you can easily take it back
10:46 PM roycroft: the ones on ebay not so easily
10:46 PM roycroft: so there's that
10:47 PM roycroft: utrasonic cleaners are really noisy
10:47 PM roycroft: and in a very very irritating way
10:47 PM roycroft: so i would recommend that if you get one you find a home for it that's as far away from where you normally hang out as possible
10:48 PM pink_vampire: i need to remover very heavy grease
10:49 PM roycroft: diluted simple green in a heated ultrasonic cleaner will do a great job with that heavy grease
10:50 PM pink_vampire: ok, i know what i'm going to get this morning
10:50 PM pink_vampire: what is the green stuff??
10:50 PM roycroft: ultra green is a biodegradable, non-flammable cleaner that works brilliantly in general, and especially in ultrasonic cleaners
10:51 PM roycroft: and you can buy it at harbor freight
10:51 PM roycroft: as well as about every home improvement store everywhere
10:51 PM roycroft: er, simple green
10:52 PM pink_vampire: can't find it
10:52 PM pink_vampire: link?
10:53 PM roycroft: oh, it looks like they don't carry it any more
10:53 PM roycroft: you can get it at home depot
10:53 PM roycroft: https://www.homedepot.com/p/Simple-Green-1-Gal-Concentrated-All-Purpose-Cleaner-2730103613005/100060853
10:54 PM roycroft: you can dilute it 10:1 or so for an ultrasonic cleaner so a gallon will last a long time
10:54 PM pink_vampire: COOOL thanks!!
10:54 PM XXCoder: i use simple green at work. its quite good cleaner.
10:54 PM roycroft: it will remove paint if you give it enough time
10:54 PM pink_vampire: 90% water or the green stuff?
10:54 PM XXCoder: 90% water
10:54 PM roycroft: i would start with that
10:55 PM roycroft: if your grease is really really hard and thick, you might want to go with 5:1
10:55 PM roycroft: get the thing up to 60 degrees or so
10:55 PM roycroft: it works a lot better when it's that warm
10:55 PM pink_vampire: i need ultrasonic shower
10:55 PM roycroft: especially with greasy/waxy stuff
10:56 PM roycroft: i keep my cleaners in a lean-to ancillary workspace that's next to my garage
10:56 PM pink_vampire: i took the grease out with a spoon
10:56 PM roycroft: my air compressor lives there
10:56 PM roycroft: and my band saw and jointer are parked there - i occasonally use them out there, but usually wheel them into the shop when i'm using them
10:57 PM roycroft: and i'm not usually doing that kind of cleaning when i'm doing woodworking
10:57 PM roycroft: so the noise does not bother me
10:57 PM roycroft: but for stuff that's really crufty i'll clean for 30 minutees or longer
10:58 PM roycroft: sometimes as long as a couple hours
10:58 PM pink_vampire: hope it not die if i will run it for long time
10:59 PM roycroft: my 2L one i've had for ~20 years, and my 30L one ~5 years
10:59 PM roycroft: and i use them almost every day
11:00 PM pink_vampire: hope the hf will last
11:01 PM roycroft: they sell extended warranties
11:01 PM roycroft: if it dies during the warranty period they just give you a new one
11:02 PM pink_vampire: ok, i might get it
11:02 PM roycroft: they're great for jewelry and eyeglasses too
11:04 PM roycroft: i keep simple green in my 30L cleaner, and i've never had to use anything else in that
11:04 PM roycroft: but i've only ever put plain water in my 2L one, so it's fine for stuff like jewelry
11:04 PM roycroft: as i said, i put simple green or whatever in a jar when i need it and set the jar in the basket
11:04 PM roycroft: that works great
11:05 PM XXCoder: just keep in mind that old jewelery, patina is part of its value
11:05 PM XXCoder: so dont make everything shiny
11:05 PM roycroft: an ultrasonic cleaner with plain water will not remove patinia
11:05 PM roycroft: it will just remove dirt and grease and grime
11:05 PM pink_vampire: there is water in the cleaner , and the jar seat inside?
11:05 PM roycroft: the cleaner comes with a basket
11:05 PM XXCoder: well yes dirt stains etc is patina
11:06 PM roycroft: normally you put your parts in the basket and set it in the cleaner
11:06 PM roycroft: i put my parts in a jar and set the jar in the basket
11:06 PM pink_vampire: with no water??
11:06 PM roycroft: with water
11:06 PM roycroft: you need water or the ultrasonic waves will not work
11:06 PM roycroft: they are transmitted through the water
11:07 PM roycroft: i don't know if the glass in the jar absorbs some of the signal
11:07 PM roycroft: but parts get clean just fine inside the jar
11:07 PM pink_vampire: this is way i wasn't understand how you use it with the jar..
11:08 PM XXCoder: i guess basically drown jar in bin
11:08 PM roycroft: you can put simple green directly in the tub of the cleaner
11:08 PM roycroft: but when it gets dirty you have to clean out the ultrasonic cleaner
11:08 PM roycroft: or any time you change cleaning solutions
11:08 PM roycroft: the jar avoids all of that
11:08 PM pink_vampire: this is my best jewelery https://i.imgur.com/AJYdB6A.png i need to clean it abit
11:09 PM roycroft: of course, if your parts are too big to fit in a jar that fits in the cleaner you'll have to put them directly in the basket
11:09 PM pink_vampire: and you just filter the green thing, or replace it?
11:09 PM roycroft: people freak out about this, but i sometimes put a solvent in a jar and use that in the ultrasonic cleaner
11:09 PM roycroft: you replace the simple green solution when it gets too dirty
11:09 PM net|: https://github.com/tecan/QPrint3D started this
11:10 PM pink_vampire: hope it will work
11:10 PM roycroft: at $8.97/gallon and 10:1 dilution it's not very expensive to replace it
11:10 PM XXCoder: whats you do with used and now uselsss liquid?
11:11 PM roycroft: i flush it down the sink
11:11 PM roycroft: i checked and our local recycle folks don't take simple green because it's biodegradable, and not usually too contaminated
11:12 PM roycroft: i don't let it turn dark brown before i replace it
11:12 PM roycroft: they don't consider it a biohazard, unless i were dumping harge quantities
11:13 PM roycroft: you should check with your local jurisdiction, of course
11:13 PM pink_vampire: i need to clean small stuff
11:13 PM roycroft: a 2.5L cleaner will be perfect for what you need to do
11:14 PM roycroft: i would not get one smaller than 2L
11:14 PM roycroft: but it sounds like you don't need anything bigger than the hf one
11:14 PM pink_vampire: https://i.imgur.com/EAfGzhY.png
11:14 PM pink_vampire: this is what i'm re build
11:14 PM roycroft: if you're cleaning aluminium parts don't forget to take them out and rinse them well when they're clean
11:15 PM roycroft: if you leave them sitting in simple green for days they'll start to corrode
11:15 PM roycroft: even super dilute like you would use it
11:15 PM pink_vampire: all the stuff here are steel / cast iron / brass
11:16 PM roycroft: yeah, most of those parts should fit in that little one just fine
11:16 PM roycroft: brass will corrode over time too
11:16 PM roycroft: there is absolutely no worry about a couple hours of active cleaning
11:16 PM roycroft: just don't let it sit for days and days because you forgot to take it out of the cleaner
11:16 PM pink_vampire: some of the gears are phenolic laminated
11:17 PM roycroft: anything you're concerned or unsure of, test carefully
11:17 PM roycroft: dilute simple green is not going to damage much of anything with short exposure
11:17 PM roycroft: so put the parts in for a couple minutes, remove, and see what's happening
11:17 PM roycroft: you'll figure it out
11:18 PM roycroft: anything that is at all porous (that includes cast iron, of course) should be rinsed well with plain water after cleaning
11:18 PM pink_vampire: can't wait to get one
11:18 PM roycroft: even non-porous stuff really should be
11:19 PM roycroft: but you can clean parts powder coat ready with simple green
11:19 PM pink_vampire: just to do a cycle with plain water?
11:19 PM roycroft: i just rinse in the sink after cleaning
11:20 PM pink_vampire: what is the powder that HF sell?
11:20 PM roycroft: i have no idea
11:20 PM pink_vampire: https://www.harborfreight.com/6-oz-ultrasonic-cleaning-powder-91593.html
11:20 PM roycroft: yeah, i know that they have it
11:20 PM roycroft: i just don't know anything about it
11:20 PM roycroft: simple green works great and is really cheap
11:21 PM XXCoder: 6 oz
11:21 PM XXCoder: i rather get simple green
11:21 PM XXCoder: it may work for stuff that does not dissolve in any way
11:21 PM pink_vampire: you need to add 1/4 of teaspoon
11:22 PM pink_vampire: https://manuals.harborfreight.com/manuals/91000-91999/91593.pdf
11:26 PM pink_vampire: roycroft: is it save to put your hand in the cleaner when it run?
11:27 PM pink_vampire: safe**
11:28 PM pink_vampire: XXCoder: ^
11:28 PM XXCoder: i dont know i never owned a ultrasonic cleaner :) shouldnt be too dangerous but then i dont know
11:29 PM XXCoder: they scan babies with ultrasonic when in mother belly, but that may be much lower energy level
11:30 PM pink_vampire: loll
11:31 PM roycroft: other than that it's hot, it's pretty safe
11:32 PM roycroft: 60 degrees is right where you can't hold your hand in the liquid
11:32 PM roycroft: not for more than a second or two
11:32 PM pink_vampire: mmm
11:32 PM pink_vampire: ok
11:32 PM roycroft: it's also pasteurization temperature
11:33 PM roycroft: and in my experience, that temperature is pretty essential for effective cleaning
11:50 PM roycroft: hmm, there's a new simple green product - "extreme simple green" that looks to be less corrosive to aluminium and brass - it is marketed as an aircraft cleaner
11:51 PM roycroft: it's about 2x the cost of the regular stuff
11:51 PM roycroft: still cheap
11:52 PM pink_vampire: i will get the regulat stuff, i don't have any aluminum part
11:56 PM roycroft: tea balls are great for holding really small parts and not having them go down to the bottom