#linuxcnc Logs

Apr 06 2020

#linuxcnc Calendar

01:37 AM Deejay: moin
02:59 AM Loetmichel: HA! Delivery arrived! Finally a couple hammers in the shop that are worthy of that name! (and not those 300g toys) -> http://www.cyrom.org/palbum/main.php?g2_itemId=17767&g2_imageViewsIndex=1
03:00 AM XXCoder: calipers is the new standard banana scale?
03:01 AM Roedy86 is now known as roedy
03:01 AM roedy is now known as Roedy
03:02 AM Loetmichel: XXCoder: kinda
03:02 AM XXCoder: lol
03:02 AM Loetmichel: had no banana, but calipers are universal sized, at least the cheap ones ;)
03:03 AM XXCoder: you should make cast alum banana
05:03 AM jthornton: morning
05:03 AM XXCoder: yo
05:26 AM veegee: So my welder, when set at 140A is putting out a steady 100A DC
05:27 AM veegee: measured using a fluke clamp meter
05:27 AM veegee: I guess I need to compensate for that and turn the current way higher
05:27 AM veegee: at least current control is precise, but not accurate
05:38 AM Loetmichel: veegee: let me guess, china?
05:38 AM veegee: of course
05:38 AM veegee: It's just a shitty $200 IGBT welder I bought off of amazon in the meantime
05:38 AM Loetmichel: seems to be a theme there, that they overexaggerate not only on the ad but also on the displays ;)
05:38 AM syyl: my 200A chinese tig welder was off too, but in the other direction
05:39 AM syyl: anything between 0 and 40A on the display was in reality 40A
05:40 AM Loetmichel: my cheap chinese Stick inverter also says "80A" when its really 60A according to my clamp meter
05:40 AM Loetmichel: still: ~100 eur for a "120A" stick inverter isnt bad.
06:02 AM veegee: Shouldn't be too hard to open it up and calibrate the current sense feedback
06:02 AM veegee: The one I got is this: https://www.amazon.ca/SUNGOLDPOWER-Digital-Display-Inverter-Complete/dp/B01MRNGTHC/
06:03 AM veegee: "200A" for $200 CAD, not too bad. I measured a max of 150A actual when set to 200A on the dial
06:03 AM veegee: I'll post a review with the actual measurements and get them to give me a 50% discount or something
06:05 AM Loetmichel: veegee: mine was even cheaper, it has no display... its a stick only welder though
06:06 AM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=9184
06:06 AM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=9187&g2_imageViewsIndex=1
06:06 AM Loetmichel: ... ballsy that they used 6mm^2 wire on that transformer for "120A" though ;)
06:06 AM veegee: Yeah I'm going to get the alphatig ahp 201: https://ahpwelds.com/product/ahp-alphatig-201xd-out-stock-pre-order-now-taking-orders-end-april
06:09 AM Loetmichel: veegee: i am waiting to get that thing if i have saved enough money: https://www.ebay.de/itm/Schweisgerat-Stahlwerk-AC-DC-Wig-200-ST-IGBT-Tig-MMA-Inverter-Welder/202302114402
06:10 AM Loetmichel: i think that'll cover most of my needs, a cheap ass MIG/MAG on the side and i am settled
06:32 AM Loetmichel: *meh* Handling thin Sheet alu that was cut with a big shear... I HATE burrs... *another 3 bandaids on the fingers* :-(
06:57 AM jymmmm: good morning
06:57 AM XXCoder: heys
06:57 AM jymmmm: Loetmichel: They have this wonderful invention called gloves now
06:58 AM Tom_L: morning
06:59 AM Loetmichel: Jymmm: not near CNC machines
07:00 AM Tom_L: sure they do
07:00 AM jymmmm: Loetmichel: Well, you are not going to load it running
07:02 AM jymmmm: Loetmichel: backpack welder is cute, does it actually work?
07:02 AM Loetmichel: yes, it does
07:02 AM Loetmichel: up to about 80A ;)
07:03 AM jymmmm: Loetmichel: is there ctually any reaon to have a control on it over than on MAX ?
07:03 AM jymmmm: other*
07:07 AM jymmmm: Loetmichel: Do you ever need to turn it down to 50% or 75% ?
07:08 AM Tom_L: jymmmm, when welding pop cans together
07:09 AM jymmmm: Tom_L lol
07:10 AM Tom_L: be nicer if it had a foot control
07:10 AM jymmmm: it's stick, does it need foot control?
07:10 AM Tom_L: looks like tig also
07:11 AM jymmmm: ah
07:11 AM Tom_L: pulsed tig with a foot pedal would be even nicer
07:11 AM Tom_L: mine is about that size but it's MIG
07:12 AM jymmmm: Since I don't weld, haven't been able to justify buying a welder, just borrow neighbor's old HF wire fed welder once in a while.
07:14 AM Tom_L: i used to have an old gas stick welder but it got so hard to start i got this: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Welding/Miller.jpg
07:14 AM Tom_L: does everything i need
07:15 AM jymmmm: nice
07:18 AM jymmmm: Tom_L Does it have foot control to switch from welding to beer dispensing?
07:18 AM Tom_L: that's a button on the wand
07:20 AM jymmmm: sweet =)
07:23 AM Loetmichel: Jymmm: i HAVE used ot for 0.8mm sheet steel with 1mm electrodes
07:23 AM Loetmichel: so yes, i have used it at less than 50% ;)
07:23 AM jymmmm: nice
07:46 AM Tom_L: speaking of cncs and gloves, my kids are required to wear these: https://www.amazon.com/dp/B00WMLYGO6?tag=top505-20&linkCode=ogi&th=1&psc=1
07:47 AM Tom_L: most of the parts they run are crane loaded though
07:48 AM * skunkworks really wants a tig...
07:48 AM XXCoder: had image of 10 year old running large crane
07:49 AM Tom_L: skunkworks, i've been dialing in my ballscrews over the last few days
07:49 AM skunkworks: Tom_L: how is ti going?
07:49 AM Tom_L: adjusting the step scale opposed to using comp
07:50 AM Tom_L: really good so far. i got X dead nuts at 15" and back to zero
07:50 AM Tom_L: i checked the screw at .5" intervals and it wasn't so bad i was gonna map it
07:50 AM skunkworks: Tom_L: the K&T we did that with guage blocks. (the lead screw was short or long because the old control could only adjust one direction)
07:51 AM Tom_L: all i have are 123 blocks and a 1" gage block i used along with a last word indicator
07:51 AM Tom_L: checked them all before starting
07:52 AM Tom_L: gonna work on Y later today maybe
07:52 AM Tom_L: got Z real close too
07:53 AM Tom_L: rather not use comp unless it's absolutely necessary since it's added into the cut as a rapid at the start of the cuts
07:53 AM Tom_L: i noticed that quite a bit on my sherline
07:55 AM skunkworks: comp takes care of backlash too
07:56 AM Tom_L: i meant backlash comp
07:56 AM gregcnc: how can you ignore it if it's there?
07:57 AM skunkworks: if the backlash is low (the green machine has <.002) you don't notice it
07:57 AM Tom_L: i've got it set to 0.00 right now
07:57 AM Tom_L: gregcnc, you can't
07:58 AM Tom_L: i figure if i run it from 0 to 15" and the dial doesn't move then move it back to 0 and it reads the same there is little to no backlash
08:07 AM skunkworks: we have a set of blocks that came with the k&t that they used for registering the fixtures on the table. from 1 to 7" - they are dead nuts.
08:09 AM skunkworks: each are stamped with 4 digits past the decimal.. 7.0000"
08:10 AM JavaBean: pshh, it needs 6 decimals before it starts being "dead nuts"
08:10 AM JavaBean: :p
08:12 AM skunkworks: I really am suprised by this thread. I thought it was going to be a dumpster fire...
08:12 AM skunkworks: https://www.practicalmachinist.com/vb/general/non-circular-boring-nerd-fun-375192/
08:12 AM skunkworks: actually was expecting it.
08:15 AM gregcnc: i was hoping it would draw some I could use that for _____ conclusions
08:16 AM gregcnc: the closest similar concept is external polygon turning, and that has plenty of applications
08:16 AM methods_: they're really worried about your ballscrew wear lol
08:16 AM gregcnc: as if HSM was somehow different
08:18 AM methods_: yeah apparently none of them have ever seen a cnc run the same part over and over and over and over and over every day for months or years
08:19 AM methods_: I came in here to write a snarky, condescending comment but after seeing it this is pretty kickass.
08:19 AM methods_: Thanks for sharing.
08:20 AM skunkworks: :) That was my thought.. Have they never watched their machines run with hsm tool paths?
08:21 AM methods_: i don't really spend much time in practical machinist but is that the common sort ofresponse in there?
08:21 AM gregcnc: they shit all over people for the strangest things there
08:22 AM methods_: guess i'm glad i don't hang out in there then
08:22 AM skunkworks: This would be considered hobbiest stuff.. (linuxcnc - small mill)
08:22 AM gregcnc: it's like if you don't have 200,000sqft of paid for machines you're not worthy
08:22 AM methods_: for low volume broaching this is incredible
08:23 AM methods_: and you don't even need to buy any special tools
08:23 AM Loetmichel: skunkworks: i have my cheap CNC routers run day in day out making small holes per helix... one of them for 6 years now... cant measure any ballscrew wear... and thats an $1000 machine... :-) -> https://www.youtube.com/watch?v=m7eO5cu-fXg
08:23 AM methods_: i can't believe a machine manufacturer hasn't made a canned cycle for this
08:23 AM Loetmichel: that CANT be good for the ballscrews ;)
08:24 AM skunkworks: methods_: they do have something similar for turning..
08:24 AM skunkworks: on a mill
08:24 AM methods_: ah ok
08:24 AM methods_: i've never come across it before
08:26 AM skunkworks: https://www.practicalmachinist.com/vb/general/non-circular-boring-nerd-fun-375192/
08:26 AM skunkworks: oops
08:26 AM skunkworks: https://www.youtube.com/watch?v=eTRGd_5wTfk
08:26 AM skunkworks: ^
08:26 AM skunkworks: methods_: ^
08:27 AM skunkworks: which you could kinda do with my example - by setting the polygon sides really high.
08:28 AM methods_: ah thx for the link
08:28 AM methods_: yeah i don't have any fancy c/y axis lathes to play with at my current shop
08:30 AM skunkworks: their spindle speed is pretty low too... You can't deny the laws of physics.. Good old scotty
08:31 AM skunkworks: Loetmichel: right - people worry too much.
08:33 AM sync: skunkworks: well, it's kinda true that you see accelerated wear with hsm tool paths
08:33 AM sync: but meh, does it matter? probably not
08:33 AM Loetmichel: sync: accerlated wear in days or "10 years instead of 15 years to wear below specs"?
08:35 AM sync: Tom_L: the backlash can change over the length of the screw
08:35 AM sync: I see that with renes haas
08:37 AM skunkworks: sync: sure - but to thing my motion is so much worse than any other complicated hsm path.
08:37 AM skunkworks: think
08:38 AM sync: yeah, it's not really worse
08:39 AM sync: I should try the codes on the haas
08:39 AM skunkworks: it is still limited by the max acceleration of the system.
08:39 AM skunkworks: sync: probably an option ;)
08:48 AM methods_: no like being speed limited would be that big of a disadvantage
08:49 AM methods_: at least for any use case i can think of for it
08:49 AM methods_: which would be low volume custom broach shapes
08:49 AM methods_: you don't have to buy any special tools or tooling and you're making whatever shape you want
08:49 AM methods_: very useful
08:50 AM methods_: those overpriced broach tooling guys are going to hunt you down and kill you skunkworks
08:50 AM methods_: you better hire some bodyguards
09:03 AM skunkworks: Heh - you can read the comments here...
09:05 AM skunkworks: methods_: https://hackaday.com/2020/03/23/a-boring-tale-with-six-sides/
09:08 AM skunkworks: All you need is rebar..
09:24 AM methods_: heheh
09:24 AM methods_: oh the hackaday comments are gold
09:27 AM methods_: sweet jeebus if i tried to do that rebar broaching out in the garage my wife would divorce me
09:28 AM miss0r: lol
09:28 AM miss0r: nice idea though
09:30 AM miss0r: At the moment I am waiting for some loctite to harden. I am working on a clutch for an old honda motor cycle. Apparently you cannot get a new clutch for this model anymore.
09:30 AM miss0r: This is indeed a task that will take time. it is mangled
09:31 AM miss0r: loose clutch springs have made deep spring spiral imprents in the pockets where they rest. the center bore is oversized and out of round.
09:31 AM sync: you can probably make a new basket from scratch relatively easily
09:32 AM miss0r: a bearing surface was worn so much the entire drive wheel had made contact with the alu surface and removed 1mm
09:32 AM miss0r: I recommended that
09:32 AM sync: or look in some other motorcycle, they are all the same mostly
09:32 AM miss0r: but he *only* wanted to have the center bearing bushed and springs reinstalled with small hardened plates with a center knob at either end
09:33 AM miss0r: I was, however, allowed to replace the original rivets with ground shoulder bolts, thankfully :D
09:34 AM miss0r: sync: When it comes to other spare parts that fit in there, I am fairly sure he has covered his bases.
09:34 AM miss0r: I am payed by the hour, anyway :]
09:37 AM miss0r: the thing that sucks most about this clutch is how light it is constructed. The alu cast does not allow for anything more than a ridiculous thin bushing.. meh
09:38 AM CaptHindsight: skunkworks: can you vary the radius to make the polygon asymmetrical? Something else that would take more than one broach
09:38 AM miss0r: No pressing in a nicely machined one. It has to be glued in place and then turned
09:42 AM skunkworks: CaptHindsight: sure.
09:43 AM skunkworks: I vary the radius by x movement. (the pin is available)
09:59 AM Loetmichel: maan, those two routers in the small shop in addition with the two shopvacs are pretty loud and hot... its like a sauna in there made with a jet engine ;) -> https://www.youtube.com/watch?v=QTIEvURkxO8
11:06 AM ziper: anyobdy used polyurethane tooling board?
11:07 AM jymmmm: toolng board?
11:07 AM Loetmichel: ziper: i used those PU foam boards in different densitys that you can get for prototypes. if you mean that stuff
11:07 AM ziper: yeah
11:07 AM jymmmm: oh foam board
11:07 AM Loetmichel: https://www.modulor.de/sikablock-pur-modellplatte-m600-hellbraun-75-0-x-95-x-120.html
11:07 AM Loetmichel: that stuff?
11:08 AM ziper: I never used it. I'm trying to find out if it is suitable for make molds for FRP parts
11:09 AM ziper: I might just stick with MDF because I am a cheap bitch
11:09 AM Loetmichel: FRP?
11:09 AM ziper: fiber reinforced plastic
11:09 AM Loetmichel: ah
11:09 AM ziper: either fiberglass or carbon
11:09 AM Loetmichel: yes, you can make molds of it
11:10 AM Loetmichel: but you have to finish the surface with something
11:10 AM Loetmichel: filler, sanding, fillter, sanding, hig gloss paint at least
11:10 AM Loetmichel: so that the micro pores are closed
11:10 AM Loetmichel: or you will NEVER get your FRP seperated
11:11 AM Loetmichel: not even with tons of release agent beforehand
11:11 AM ziper: hmm
11:11 AM ziper: I was hoping to be able to make one-offs quickly to make up for my lack of proper design skills
11:11 AM Loetmichel: that stuff is like blueboard (Styrodur for our european folks) : very fine pores, but still pores
11:11 AM ziper: maybe I should just machine the part from stock instead
11:12 AM Loetmichel: same as MDF btw
11:12 AM Loetmichel: its actually pretty similar to MDF just that it doesent mind getting wet
11:13 AM Loetmichel: (depending on density it can be as light as styropor or as heavy as water)
11:13 AM Loetmichel: the white stuff is pretty close to "massive block"
11:14 AM ziper: does some flex in the mold help? like popping ice cubes out of the tray
11:16 AM Loetmichel: ziper: i did model planes for 3 jears as a job
11:16 AM ziper: neat
11:16 AM Loetmichel: you have to have a mold thats a glossy finish on both sides for fibre reinforced plastics
11:16 AM Loetmichel: and then put PVA spray on it/release wax.
11:17 AM Loetmichel: then the gelcoat, then the glass mats, then drench it in resin, more glass mats, second mold or plastic sack, vacuum and (optional) heat, wait a while, unvacuum. release the part from the mold
11:18 AM Loetmichel: if you forget the glossy finish or the release agent: goodby part AND mold
11:18 AM Loetmichel: they are one piece forever
11:19 AM ziper: right
11:19 AM * Loetmichel sometimes used a layer of carbon with some attached brass ring vets at two sides so i can heat the mold from the inside out
11:20 AM Loetmichel: *ring rivets
11:21 AM Loetmichel: to accelerate resin/epoxy curing
11:24 AM ziper: Here is something I don't get. I heard about this company that make solid parts with a 2 part mold, and they make it all at once with several tons of force on the two mold halves. How do they make sure when they are making the part that all the carbon is actually in the mold, and not peeking out around the flash line? and that there is enough carbon inside so that the mold can close, but not so little that there are voids?
11:25 AM ziper: I could understand if they had a bladder inside, as that would expand to take up the voids, but they don't
11:29 AM sync: why would it peek out the mold line?
11:43 AM Tom_L: sync, when i did check the length there were a couple spots but for my purpose hardly worth mapping
11:43 AM ziper: because it would squish out a little when you push the mold down
11:43 AM Tom_L: one day i might give it a go again
11:44 AM Tom_L: not sure i'd call that backlash. maybe inconsistency on the screw mfg part
11:45 AM Tom_L: they _are_ after all cheap screws
12:27 PM sync: ziper: no, it does not really do that if you use prepreg
12:27 PM sync: Tom_L: well, when I did the interferometer test on the haas you can clearly see the backlash changing through the travel
12:55 PM Deejay: re
12:57 PM gregcnc: Ziper what kind of material?
12:59 PM gregcnc: are you talking forged composite?
01:38 PM ziper: gregcnc, don't think so. after looking it up forged composite uses some kind of chopped carbon, this is regular sheets afaik
01:51 PM __builtin is now known as _builtin
01:52 PM _builtin is now known as __builtin
02:03 PM rmu|w: pcw_home: i took delivery of a 7i97 card today, and it seems the power connector "P2" is soldered in the wrong way. is there some particular reason for that?
02:05 PM pcw_home: I don't think its wrong (we would not be able to test with our normal test harness if backwards)
02:05 PM andypugh: pic?
02:06 PM rmu|w: just a moment
02:06 PM rmu|w: it's oriented the other way than usual
02:06 PM rmu|w: and doesn't conform to the print
02:07 PM rmu|w: https://people.unfoo.net/@robert/103953195306984505
02:08 PM rmu|w: and https://people.unfoo.net/@robert/103953209064970332
02:09 PM rmu|w: (links to pics)
02:11 PM andypugh: As you have another the other way round, I can see the cause of your caution.
02:12 PM rmu|w: also it isn't aligned to the silkscreen
02:12 PM rmu|w: (first pic)
02:12 PM rmu|w: i think i will just swap it
02:13 PM rmu|w: around
02:13 PM pcw_home: It must be polarized in our normal way
02:14 PM andypugh: The 7i97 pic is the same way as my 7i43. (most of my Mesa cards are not pluggable)
02:15 PM andypugh: Any chance the 7i93 is a reverse connector? (ie clamps on the other side)
02:15 PM rmu|w: the 7i90maybe the 7i93 is wrong
02:16 PM pcw_home: the only card that is backwards is the current 7I93
02:17 PM rmu|w: ok. just checked with 7i90, thats also oriented like the 7i97
02:17 PM pcw_home: (there's a note about it in the 7I93 manual )
02:17 PM rmu|w: ok. who reads manuals. ;)
02:18 PM rmu|w: thx
02:18 PM rmu|w: will turn the connector on the 7i93, i think it is unhealthy if i leave it like that
02:19 PM pcw_home: yeah eventually you will power it backwards...
02:20 PM rmu|w: my power supply is limited to 100mA at the moment, will the card survive wrong polarity?
02:21 PM rmu|w: 500mA
02:31 PM pcw_home: yeah there is a reverse diode (so if you use a 30A PC power supply backwards you will have a fire)
02:32 PM pcw_home: I think the 7C80 is OK with reverse 12-24V
02:32 PM pcw_home: (series diode)
02:59 PM SpeedEvil is now known as Guest22136
03:12 PM BitEvil is now known as SpeedEvil
03:53 PM _unreal_: hello
03:53 PM _unreal_: sweet just got my opamp in the mail
03:53 PM _unreal_: well boys.. and girl(s) hate to do it but I'm going to take down my home machine and rebuild it a little
03:54 PM _unreal_: a few more companies at work want me to do stuff so I have HAVE to fix the rigid issues
03:54 PM _unreal_: really just the Z
04:03 PM Deejay: gn8
04:40 PM t4nk_freenode: I like rigid issues!!
04:41 PM t4nk_freenode: also: icecream
04:42 PM gloops: https://www.facebook.com/williamcondon/videos/10157004650914870/
04:43 PM gloops: Blast from the Past - An Old Lanz BULLDOG tractor. No Battery, no Starter Motor, just a 12 G Shot Gun Cartridge. I have never ever seen this before.
04:49 PM SpeedEvil: gloops: https://en.wikipedia.org/wiki/The_Flight_of_the_Phoenix_%281965_film%29
04:49 PM SpeedEvil: https://www.youtube.com/watch?v=kr9de4C3wco
05:16 PM Tom_L: gloops, does the shot go thru the engine?
05:17 PM Tom_L: no sound so i dunno if he explained it
05:18 PM flyback: oh yeah
05:18 PM gloops: i dont understand them, not sure what the shot does lol
05:18 PM * flyback DROPKICKS gloops and elmo40
05:18 PM Tom_L: even if they're blanks something is bound to go thru
05:18 PM * flyback bitchslaps rue_mohr
05:18 PM flyback: B
05:18 PM flyback: M
05:18 PM flyback: C
05:18 PM flyback: C
05:28 PM andypugh: Not just the Bulldog: https://www.youtube.com/watch?v=vEejYf6cfuE
05:36 PM _unreal_: Just ordered a new spindle motor for my cnc machine
05:36 PM _unreal_: home machine
05:37 PM _unreal_: https://www.aliexpress.com/item/4000801582283.html?spm=a2g0s.9042311.0.0.38bf4c4dE8UGiV
05:38 PM _unreal_: what cha think of that spindle ?
05:40 PM gregcnc: if the collect chuck is not integral to the shaft I wouldn't bother
05:40 PM andypugh: The first Marshall in 1930 was an 8 litre single cylinder diesel (bit got smaller over the years) . Eventually the Bulldog grew to a 10.3 litre single cylinder.
05:40 PM SpeedEvil: The above film features use of a cartridge starter prominently
05:41 PM andypugh: SpeedEvil: As does the book.
05:42 PM _unreal_: gregcnc, I believe the collet chuck is part of the shaft. not a screw on
05:42 PM andypugh: I can’t recall how the film was written, but in the book the engine started with at least one spare cartridge. Did the film manage to resist the temptation....
05:42 PM SpeedEvil: I do not recall, it's been a while.
05:43 PM _unreal_: gregcnc, unless the phtoos dont match the item it looks to be a one piece.
05:45 PM gloops: 300w and 14500rpm is going to restrict the cutting speed
05:47 PM andypugh: Yes, it does seem an odd milx of weak nad (realtively) slow
05:51 PM andypugh: The 2.2kW spindle I bought to use on my milling machine does 24,000 rpm.
05:51 PM _unreal_: weak and slow LOL
05:51 PM andypugh: It was 4 x as expensive. But only 4x as expensive.
05:52 PM _unreal_: weak AND SLOW lol...... its faster and more powerful then my current setup
05:52 PM _unreal_: this is going on my mini machine
05:53 PM _unreal_: Work JUST ordered this for me https://www.amazon.com/MYSWEETY-Cooled-Spindle-Converter-Collet/dp/B01N1EJEQ1/ref=sr_1_3?dchild=1&keywords=1.5kw+spindle+motor&qid=1586213578&sr=8-3
05:53 PM _unreal_: I'm paying them back. Thats for the new machine I'm bilding
05:53 PM _unreal_: building
05:53 PM _unreal_: the WEAK and slow motor is for my small home machine
05:54 PM SpeedEvil: Why work ordered?
05:54 PM _unreal_: discounts
05:54 PM _unreal_: business purchase
05:54 PM Rab: _unreal_, why 110V?
05:54 PM _unreal_: there are no 220v versions there
05:54 PM Rab: ahh
05:54 PM _unreal_: except for 2.2kw
05:55 PM _unreal_: and the 2.2kw is too large for my new machine
05:55 PM _unreal_: litteraly wont fit
05:55 PM _unreal_: per my design
05:55 PM _unreal_: LOL weak and slow
05:55 PM _unreal_: good greff
05:56 PM _unreal_: my curent spindle on my HOME machine is one of those no fan no air cooled 200watt 12,000 rpm micro spindles
05:56 PM _unreal_: works great
05:57 PM andypugh: Depends on the application, of course. I picked up one of these https://www.ebay.co.uk/itm/Square-2-2KW-2200W-Quality-Air-cooled-Spindle-Motor-ER20-6A-24000rpm-380V-AC/274130890546?hash=item3fd3796f32:g:~EEAAOSwFZdd6wzi but including the VFD for £207.
05:58 PM _unreal_: ya I dont have a heavy duty machine
05:58 PM _unreal_: I would have if that fucking company had ever bothered to do anything.
05:58 PM andypugh: The main spindle of my milling machine is slow, but not at all weak. It can do this; https://www.youtube.com/watch?v=thtDRjgbxRE
05:58 PM _unreal_: I purchased all the parts for the other machine and they still never made any of my parts
06:00 PM _unreal_: making a spring?
06:00 PM andypugh: Indeed. That’s 1/4” spring steel.
06:00 PM _unreal_: So I just ordered liner bearings for my home machine
06:00 PM _unreal_: I need to change my Z bearing setup
06:00 PM _unreal_: too much play
06:00 PM _unreal_: IMO
06:01 PM _unreal_: AND the bearings are cutting into the pipe
06:01 PM _unreal_: which is killing there tension :/
06:01 PM andypugh: (in the full-gard condition, because I know that you don’t quench and temper spring steel….)
06:01 PM andypugh: (full-hard)
06:04 PM _unreal_: OH wow I'm up $300 on stocks
06:04 PM _unreal_: I may buy more
06:05 PM andypugh: I got an email taday saying that my savings account has gone from 0.1% to 0,01% interest. I might just walk in and ask for all the money as cash, as they clearly don;t want it.
06:06 PM _unreal_: andypugh, nclh rcl
06:06 PM _unreal_: if your into stocks
06:07 PM _unreal_: they are both about 1/5 of there normal value
06:07 PM _unreal_: I'm transfering an other $1k into my stocks tonight
06:11 PM _unreal_: There money transfer is done
06:12 PM _unreal_: ok
06:12 PM _unreal_: andypugh, do you do stocks?
06:12 PM andypugh: No.
06:14 PM andypugh: I once thought about it, in 2008. I had managed to get my house deposit together, 30k, and GM and Chrysler had just gone bust. I thought. “I think Ford are OK, perhaps I should put the money in to Ford stock” . I didn’t. If I had, then 3 weeks later I could have bought the house outright.
06:15 PM andypugh: But then, I also briefly considered mining bitcoin in 2010
06:29 PM _unreal_: heh
06:29 PM _unreal_: andypugh, in 2010 you would have been better off spending $500 buying every coin you could. and been wealthy today
06:30 PM _unreal_: heh
06:30 PM skunkworks: I need to invent time travel...
06:30 PM _unreal_: andypugh, all I can say is RIGHT NOW is the time to get into stocks if there was EVER EVER!!!!!!! a time to do it
06:30 PM andypugh: I don’t thing “wealthy” is quite the word :-)
06:31 PM _unreal_: andypugh, I mean litteraly aside from having an other tax addition to deal with
06:31 PM andypugh: _unreal_: I agree. Unless you choose one of the many cmpanies that are going to go under.
06:31 PM _unreal_: andypugh, in 2012 I had a guy who was going to sell me 10,000 bit coins for $1k
06:31 PM jthornton: skunkworks, no need you can get one from o'reilly https://www.oreillyauto.com/flux-capacitor
06:31 PM _unreal_: my FUCKING Xwife told me she OUT OF THE FUCKING BLUE was going to divorce me.
06:32 PM andypugh: _unreal_: I am guessing you declined the offer?
06:32 PM andypugh: (of the bitcoins)
06:32 PM jthornton: skunkworks, just need to find a 1981-1983 DeLorean DMC-12
06:32 PM _unreal_: had the bitch NOT done that and I had gotten to make that purchase I'd have been worth between 18-50million depending on when I cashed in
06:33 PM _unreal_: if I had done so around 2016
06:33 PM skunkworks: jthornton: nice - I am sure polygon boring- -> time travel isn't that big of a jump
06:33 PM jthornton: you can do it!
06:33 PM _unreal_: trust me you have no idea how much it annoys me
06:33 PM _unreal_: I HAD IT
06:34 PM _unreal_: but my POS X is soooo self centered she flat out told she didnt care
06:34 PM _unreal_: BS
06:37 PM t4nk_freenode: _unreal_, I don't care.
06:37 PM t4nk_freenode: :b
06:45 PM unterhaus: I bet the guy that threw away the laptop with 7 million in bitcoin on the HD is still kicking himself
06:45 PM unterhaus: must have been worth a lot more at the peak
06:55 PM _unreal_: prob a tilion ;)
06:55 PM _unreal_: hehe
06:55 PM _unreal_: damn it damn it damn it damn it damn it damn it damn it damn it damn it damn it
06:55 PM _unreal_: trillion
07:39 PM Tom_L: andypugh, Edsel is where it's at...
07:40 PM Tom_L: they're gonna make a big comeback
07:44 PM _unreal_: edsel?
07:54 PM _unreal_: omg.... I want my @$#%@#$@ box so bad
07:54 PM _unreal_: waiting for a friend to build it for me
08:13 PM JavaBean: what's in the box?
08:15 PM JavaBean: reference: NSFW, https://www.youtube.com/watch?v=1giVzxyoclE
08:33 PM gregcnc: 300W and 14kRPM is reasonable. How many times has anyone loaded those 2.2kW to 2.2kW?
08:34 PM SpeedEvil: It probably also means it could do >30W at 1400RPM say
08:34 PM gregcnc: ideally you'd have a torque curve to know what you're really getting
08:34 PM SpeedEvil: Indeed
08:42 PM gregcnc: anyone suggest a shop for live tool repair? I really just need a part, but the importer tried to tell me what I wanted wont work.
08:49 PM JavaBean|new is now known as JavaBean
08:57 PM snakedGT is now known as snaked
09:47 PM jymmmm: What is a crucible made from?
09:48 PM skunkworks: lots of things?
09:49 PM jymmmm: graphiet and cilia carbide it seems
09:49 PM jymmmm: silica
09:50 PM jymmmm: I was looking at subthing that cna withstand 1400F
09:50 PM jymmmm: something*
10:03 PM jymmmm: DIY graphiti crucible... https://www.youtube.com/watch?v=HuM4xSNX0no
10:07 PM Tom_L: graphite usually
10:08 PM Tom_L: jymmmm, is that a bronx thing?
10:12 PM sync: gregcnc: with the winding in the 2.2kW spindles you can only use the full power at full speed
10:14 PM skunkworks: https://www.ebay.com/itm/NOLTINA-STABIL-Carbon-Bonded-Silicon-Carbide-Crucible-8-75-Top-Dia-X-11-5-High/192928101718?hash=item2ceb693556:g:ypMAAOSwO5tc6OMM
10:14 PM skunkworks: jymmmm: ^
10:20 PM Tom_L: finished the 3 axis calibration this evening finally
10:30 PM skunkworks: how did it go?
10:47 PM Tom_L: good
10:48 PM skunkworks: did you have to change much>
10:48 PM skunkworks: ?
10:48 PM Tom_L: the 3 screws turned out to be quite different
10:49 PM Tom_L: the scale on Z is 30611 but it's 3:1 reduction, X ended up at 10165.1 but Y is 10176
10:50 PM Tom_L: not as big a change as it appears
10:50 PM Tom_L: if you calculate it, nominal for x and y would be 10160