#linuxcnc Logs

Dec 14 2018

#linuxcnc Calendar

02:03 AM Deejay: moin
04:43 AM veek: when buying angle iron.. what's a dimension of 65x65x6mm imply?
04:43 AM veek: 6 is the thickness
04:43 AM veek: but 65??
04:44 AM XXCoder: im guessing height
04:44 AM XXCoder: only a guess tho. no picture?
04:44 AM Deejay: ask for cad data :D
04:47 AM veek: nm width of the L
04:48 AM veek: they must mean the width's the same - guhh stupid me
04:50 AM jthornton: morning
04:51 AM XXCoder: hey
05:33 AM Tom_L: morning
05:33 AM XXCoder: hey
05:35 AM jthornton: wow low of 49° and high of 51°F today
05:35 AM jthornton: morning
05:35 AM XXCoder: 40f 45f rain
05:36 AM XXCoder: tomorrow is 44f 44f
05:36 AM jthornton: yea rain here with flash flood watch
05:46 AM MarcelineVQ: you near any water sources?
05:47 AM jthornton: I have a wet weather creek that goes through my property but the drainage area is small
05:51 AM MarcelineVQ: do the chickens stil go out in bad weather? can't recall if your are a was covered
05:51 AM MarcelineVQ: *area
05:51 AM jthornton: if it's raining or snowing they usually stay in the covered run
05:52 AM Tom_L: 33F Hi 51
05:53 AM XXCoder: wish we humans have that option lol
05:53 AM XXCoder: rain meh dont go work
06:21 AM veek: how do they take a solid cylinder of steel and make it hollw (Pipe) it's not clear from the video https://www.youtube.com/watch?v=lueB6RvqMSo
06:21 AM jthornton: it's either rolled and welded or hot pierced
06:21 AM jthornton: the latter being called DOM
06:23 AM veek: hot pierced is where they ram the center of the molten rod? so the outer skin travels at a higher velocity than the center?
06:23 AM MarcelineVQ: dom = drawn over mandril?
06:23 AM jthornton: aye
06:23 AM veek: yep
06:24 AM MarcelineVQ: there's mandrils in the vid so that's probably it
06:26 AM MarcelineVQ: hehe can't tell if the air is lighting on fire during the ramming or if there's steam de-scaling
08:19 AM Loetmichel: *maaan* the documentation at this workplace here.... bos came by: "please modify another one of these laser printers... you know, like the prototype you made 1.5 years ago..." and the paper trail you get to that is from a different model, with the pictures of the modifications made from ANOTHER different model attached. HOW am i supposed to get the needed parts for the mod (PCBs, filters,
08:19 AM Loetmichel: FFC extensions, sheet brass enclosures)? #FML
08:30 AM SpeedEvil: :/
10:59 AM jesseg: Howdy
11:33 AM flyback: <Loetmichel> FFC extensions, sheet brass enclosures)? #FML
11:33 AM flyback: when all else fails
11:33 AM flyback: just bite the nearest canadian
11:33 AM flyback: and feel better
11:34 AM miss0r|office: oy mate! What would that help?
11:34 AM flyback: it just does
11:34 AM flyback: BMCC
11:35 AM flyback: RUE_MOHR stopped idling here because of all the bite marks on his legs
11:35 AM miss0r|office: you'll need to translate that BMCC for me - google is not helping :)
01:55 PM Loetmichel: flyback: its not that bad... already have most of the parts i need... now to get the part values to populate the filter PCB from the external PCB designer... as i mentioned: the prototype was more than a year ago... hope he has better documentation than we do ;)
04:00 PM Deejay: gn8
07:05 PM andypugh: After literally years I finally made and fitted a splash / swarf guard on my lathe. https://photos.app.goo.gl/iLjavY8MbAbW6FmH8
07:05 PM andypugh: It doubles as a shelf, and incorporates a work light.
07:06 PM Tom_L: the wall will miss the lubrication
07:08 PM andypugh: Came out quite expensive. It was £60 for laser-cutting the blank, then I had to fold it myself. I got a quote for cutting + folding but that was £180.
07:17 PM andypugh: If anyone else wants the 3D printed MT2 holder: https://www.thingiverse.com/thing:3285522
07:18 PM ziper: how flat is your average glass coffee table?
07:20 PM Tom_L: andypugh, i would have missed that... brouser at half screen i just saw the lathe pic
07:20 PM Tom_L: nice one
07:21 PM Tom_L: ziper, flat enough to set a cup of coffee on
07:22 PM andypugh: ziper: I wouldn’t want to bet on it. A granite kitchen counter is probably better.
07:22 PM ziper: I don't have one of those
07:23 PM ziper: any my concrete slab is definitely not flat
07:23 PM ziper: oh well i'm just going to shim it the best i can
07:23 PM norias: hmmmm
07:23 PM andypugh: What are you trying to do?
07:24 PM andypugh: In theory you can measure the table. All you need is a $5,000 auto-collimator
07:24 PM norias: true, true
07:24 PM andypugh: Actually, you can do it with a scriber base, straight-edge and DTI
07:25 PM ziper: dti?
07:25 PM andypugh: Dial Test Indicator
07:25 PM ziper: oh
07:25 PM ziper: ive never heard them called that
07:26 PM andypugh: https://www.youtube.com/watch?v=lnoxPYw83MM
07:26 PM ziper: I also don't have a straight edge long enough
07:28 PM andypugh: They aren’t _that_ expensive
07:30 PM ziper: I know, but I don't have the tools or equipment or do enough of anything to justify it
07:30 PM Tom_L: do the best you can with what you've got like i did
07:31 PM andypugh: How old are you? How much lifetime is left for “buy now, lasts a lifetime"
07:32 PM ziper: attaching the linear rail to the bed, should I do anything besides shim it up from the ends and clamp it while I transfer punch the holes?
07:32 PM ziper: andypugh, 22
07:32 PM andypugh: Well, buy now, expect 50 years of use.
07:33 PM Tom_L: ziper, to get my holes centered i clamped the rail in place and used a drill the size of the hole to find the center
07:33 PM Tom_L: that or get a drill rod the right size and point it then use that
07:34 PM sync: andypugh: ACs are actually quite cheap used
07:34 PM ziper: something wrong with transfer punches?
07:34 PM Tom_L: i didn't have that fancy center punch set
07:35 PM Tom_L: i could have gotten a cheap one from harbor freight but it may not have lasted the entire job
07:39 PM ziper: thats what I bought. Figured there isn't much that can go wrong with a punch. I'm going to try and finish the welding tonight so I can work tomorrow with shorts
07:39 PM Tom_L: what type of mill are you making?
07:41 PM ziper: 1500mm by 700mm by 300mm, belt drive, for foam and wood
09:13 PM XXCoder: geez!
09:13 PM XXCoder: was working overtime for just 2 hours when blackout happened
09:15 PM Tom_L: no more overtime
09:16 PM XXCoder: normally company comps entire shift if blackout happens
09:16 PM XXCoder: but overtime I dont think they pay more than hours worked
10:02 PM veek: what's a A-23 v-belt and 3*1*A V-belt - is there a spec for V-belts.. I know about A being 1/2" top width but 23?
10:06 PM Tom_L: https://www.vbelts4less.com/V-Belt-Specs_ep_45.html
10:08 PM veek: thanks :) that's a nice link
10:09 PM veek: 23 was the inner/outer length - stupid spec's ambiguous
10:41 PM veek: A23 - $6.17 - how much does this list for you guys? seems like a ridiculous price - I get it here for 1+$ https://www.aliexpress.com/item/SUMRAY-V-Belt-A-Type-Rubber-Belts-Transmission-A19-20-21-22-23-24-25-26/32870598711.html
10:42 PM XXCoder: 6 to 6.5 usd
10:42 PM veek: hoo
10:43 PM veek: hmm 7 years of storage for v belts
10:44 PM XXCoder: does it have definition of "storage" like vacpack or just box in dry temeprate area
10:59 PM roycroft: uv light is the biggest factor in the breakdown of rubber products in storage
10:59 PM roycroft: so i should think an opaque box would be the most important thing
11:00 PM XXCoder: yeah and second would be oxygen
11:00 PM XXCoder: so opaque with anti-oxygen packet
11:03 PM roycroft: speaking of rubber stuff
11:04 PM roycroft: i just got a benchtop edge bander, and two of the feet are missing the rubber grippers
11:04 PM roycroft: they are basically rubber discs with holes bored in the middle
11:04 PM roycroft: i looked at it and thought that hockey pucks would be great for that - they should be fairly easy to machine to size
11:05 PM roycroft: and i found that i can buy a dozen regulation hockey pucks for $19.99, with free shipping
11:05 PM roycroft: i had no idea they were that cheap
11:05 PM XXCoder: yeah those is amazing for anti-vibration
11:05 PM roycroft: so i ordered some - they can be useful for so many things
11:05 PM XXCoder: and its dense so it can bear up to a lot of weight
11:06 PM Tom_L: i got a pile of em free at games :D
11:06 PM roycroft: i'd have to spend more on fuel to drive to a hockey game than i paid for a dozen pucks
11:06 PM XXCoder: lol
11:08 PM roycroft: hockey is not really a thing in oregon
11:08 PM roycroft: seattle just got an nhl franchise thoug
11:08 PM roycroft: h
11:08 PM XXCoder: i dont even know where nearest hockey area is lol
11:09 PM roycroft: right now, vancouver is the closest nhl team
11:09 PM roycroft: hockey night in canada is the longest running sports show on television anywhere in the world
11:09 PM roycroft: it's been on since 1952
11:11 PM veek: XXCoder, (he's just talking about hanging them vs storing flat in bins) https://www.regalpts.com/PowerTransmissionSolutions/Other/Belt%20Drive%20Monthly%27s/Form_9418E.pdf
11:11 PM XXCoder: interesting
11:15 PM roycroft: i can guarantee that i have belts in my vehicles and belts in my machines that are way way way way way older than seven years
11:15 PM roycroft: odd that they would degrade more in storage than in service :)
11:16 PM XXCoder: dunno its in dark place
11:16 PM XXCoder: and protective oil/dirt coating lol
11:16 PM roycroft: yeah, i don't pimp out my machinery with internal black lights
11:16 PM XXCoder: pimp