#linuxcnc Logs
Feb 14 2017
#linuxcnc Calendar
01:12 AM enleth: is there a "clear all error pop-ups" shortcut in Axis?
02:22 AM IchGucksLive: morning from germany
02:25 AM IchGucksLive: enleth: still on
02:27 AM enleth: yep
02:27 AM IchGucksLive: you can make your own abort
02:27 AM IchGucksLive: so all clears up
02:27 AM IchGucksLive: Most
02:29 AM IchGucksLive: enleth: did you also try control+space
02:31 AM enleth: no, will try next time when I'm at the mill
02:32 AM enleth: besides, I need to add some more ladder logic to force a switch to manual mode every time a handwheel is engaged by the operator
02:32 AM enleth: that will eliminate most of the join following errors
02:32 AM enleth: *joint
02:33 AM enleth: or actually force "machine off" in axis
02:34 AM IchGucksLive: halui is a good way to do this
02:34 AM IchGucksLive: i find postgui better then classic ladder in most cases
02:35 AM IchGucksLive: putting 2 or more effects together
02:36 AM enleth: I'm using ladder anyway for some pretty critical stuff
02:36 AM IchGucksLive: xhc-hb04 and pyvcp with the internal movement
02:36 AM IchGucksLive: up to you
02:37 AM IchGucksLive: rseting reloding python and usb scripts
02:37 AM enleth: and the machine has a lot of original physical ladder logic, so it's just natural to extend it a bit in software
02:37 AM IchGucksLive: ok im off
02:38 AM IchGucksLive: have a nice workday
02:45 AM minibnz: ok so now i have time to work on the Mill's Z axis motor upgrade.. all i have to do is cross drill the shaft with a 2mm hole.. problem is it looks like its hardened.. my center drill had no problems starting, bit all the twist bits i have dont so shit..
02:46 AM minibnz: dont do shit... they just get hot and dont make the hole any deeper :(
02:47 AM minibnz: hmm wonder if bunnings has carbide drill bits....
02:48 AM enleth: minibnz: if the center drill was HSS, maybe the regular ones were just in some need of sharpening?
02:49 AM minibnz: enleth center drill is carbide.. and the normal twist bits are brand new from the shop :(
02:49 AM enleth: besides, shafts are usually hardened on the surface and they're still soft not that far in
02:49 AM enleth: ah, ok
02:50 AM minibnz: i have already lathed off 2mm from the diameter and these bits dont seem to be able to scratch the shaft..
02:50 AM enleth: so it sounds like all you did was work harden the hole
02:51 AM minibnz: yip
02:53 AM enleth: well, I spent the last night fitting a new lock to an old armored filing cabinet
02:53 AM minibnz: hmm wonder if devcon will hold the torque..
02:53 AM enleth: the damn thing ate two drill bits in the process
02:53 AM enleth: I had to do the bulk of the job with abrasives to keep the tooling casualites to a minimum
02:57 AM minibnz: i once found a big walkin safe in the middle of nowhere it was a double ended one, so i thought it was a good idea to take the combination lock out of the open side to see if i could determine the code and try it on the other end to see if there was anything in there.. when i cracked the back of the door off i was very impressed they really made that thing good, but by the time i pulled the mech and determined the code and went back the
02:57 AM minibnz: other side had been emptied out :(
02:58 AM minibnz: i have that mech ready to mount on my gun safe when i build it.. its a lovely big dial with 5 or 6 digits.. i have the code worked out and written down some place.
02:59 AM minibnz: oh well looks like i wont be drilling a hole tonight.. might go see how the 3d printer blew up and if the replacement board is simply going to fry
03:04 AM minibnz: its a jaycar special.. i think the rest of the world knows it as the techbrands TL4100 delta rostock clone.. it was working ok i could make the motors move but the instant i plugged in the usb and the mains at the same time it let out the magic smoke.. i have a replacement board (warranty replacement) that i need to install.. before i do that i need to measure the voltages between the printer power supply's and the desktops usb port powe
03:04 AM minibnz: r pins.. thinking i might have had a grounding issue of some sort...
04:05 AM Deejay: moin
05:43 AM jthornton: morning
05:43 AM XXCoder: hey
05:48 AM Deejay: huhu
05:50 AM jthornton: smoking jerky today :)
05:50 AM XXCoder: tsk tsk youre bad infence on jerky
05:51 AM jthornton: trying to get used to this lit up keyboard
06:22 AM jthornton: any chips yet?
06:22 AM XXCoder: no
06:22 AM XXCoder: still waiting for 12v and 5v
06:23 AM minibnz: do you roll that like a joint or do you need glassware?
06:24 AM jthornton: gotta lay it out flat lol
06:25 AM minibnz: will have to get into making myself some jerky some day soon.. want to be sure i dont waste any meat from a hunting trip, jerky is good for that.
06:25 AM minibnz: from what i read its pretty simple these days..
06:25 AM jthornton: http://gnipsel.com/recipes/beef/soy-jerky.html
06:26 AM jthornton: http://gnipsel.com/recipes/venison/venison-jerky.html
06:26 AM minibnz: hmmm venison.. now thats what im a wanting..
06:28 AM minibnz: deer season is march april. and this year me and my mate are going to try harder to actually get into the back of the saw mill.. cuz we dint seem to be having much success talking about it on the phone...
06:31 AM XXCoder: jthornton: sadly it will take over a month
06:31 AM XXCoder: shipping estmates is last of feb to over a month later
06:58 AM jthornton: that sucks
06:59 AM XXCoder: yeah
06:59 AM XXCoder: but prettyn good deal
06:59 AM XXCoder: 5 bucks each
07:00 AM XXCoder: and its sealed waterproof lol not that I need that
07:00 AM XXCoder: 5A is nice and plenty too
07:18 AM jthornton: how do you add a thing to the group
07:20 AM XXCoder: good question
07:21 AM jthornton: I seem to have it working but I get doubles in the group lol
07:21 AM jthornton: ah a page refresh worked
07:22 AM XXCoder: added my 2 flsun related stuff thanks
07:22 AM jthornton: yea
07:23 AM jthornton: I actually got some likes on some parts lol
07:23 AM XXCoder: 90 degree support and anti-wobble gets bunch of those
07:23 AM XXCoder: but NO makes so far. blahhh heh
07:25 AM jthornton: http://www.thingiverse.com/JT_Shop/makes
07:25 AM jthornton: I have one make lol
07:25 AM XXCoder: ya but same time you has bunch more designs heh
07:25 AM XXCoder: chair has most makes
07:25 AM XXCoder: no other part has em
07:26 AM jthornton: dang rain this morning... guess I'll wait for it to move out to start up the smoker
07:28 AM travel: Anyone good with custom kinematics? Lathe profiler where... in non trivial kinematics to land on X.2 Z1 I must put X1.2 Z1; so... X is = desired distance + Z; imagine a telescoping collet gripper where both actuators are parallel
08:29 AM MacGalempsy: morning
08:30 AM JT-Shop: morning
08:30 AM MacGalempsy: cold and rainy here in OK.
08:31 AM JT-Shop: same
08:32 AM gregcnc: I asked a guy on ebay for his best price on several items, comes back 100€ more than asking?
08:33 AM gregcnc: hopefully i get to work today. voltage was so high yesterday the phase converter was tripping out
08:33 AM * JT-Shop lights a fire...
08:35 AM JT-Shop: I do the same thing if someone asks me for my best price I raise it
08:35 AM gregcnc: Oh when someone is interested in 10 items, I make the sale.
08:36 AM JT-Shop: and ask them how high they will go...
08:37 AM MacGalempsy: on location, i think lighting a fire would be an issue
08:37 AM gregcnc: so do these people cave and buy?
08:37 AM JT-Shop: usually they are just low ballers and don't buy anything
08:38 AM gregcnc: new product or used ebay stuff?
08:38 AM JT-Shop: a serious person will make an offer to start the negotiations
08:38 AM JT-Shop: used stuff on craigslist, I don't use ebay any more
08:40 AM gregcnc: for CL I don't negotiate until they are in front of me
08:44 AM * SpeedEvil wishes CL was a thing here.
08:45 AM Jymmm: The thing i hate the most is when someone replies to a CL and says "will you take 99% off the asking price?"
08:45 AM gregcnc: delete
08:46 AM Jymmm: prety much
08:47 AM Jymmm: gregcnc: Atually, I have a CL-FLAKES folder =)
08:47 AM gregcnc: hah
08:47 AM Jymmm: I want to remember who they are for future references.
08:47 AM gregcnc: rocket stove progress?
08:49 AM Jymmm: gregcnc: *sigh* I hit HF to get a 3" hole saw, didn't come with arbor, but I had one. drove 50 miles, got the holesaw, got home, my arbor doesn't fit. Their arbor is $10, the holesaw set was $20
08:50 AM gregcnc: so what is the design? Seems like if you want to store the heat and use water to move it, just use water for the thermal mass?
08:51 AM Jymmm: gregcnc: Ok, step back from that for a moment...
08:52 AM gregcnc: i was trying to order from mcmaster late yesterday as i was deciding on the last item i found the cutoff time, oh well one more day..
08:53 AM gregcnc: jig saw didn't work, or nowhere to be found?
08:54 AM Jymmm: gregcnc: I have a small area, little to no clearances. THIS particular design is thermal mass rocket barrel stove... basically it burns hard/hot/fast using wood pellets/chips/sticks (not cord wood). The barrel itself acts as the thermal mass, and the exhaust is actually cool enough to touch. Basically meaning that I can run the echaust out the wall and not worry about being hot enough to cause a fire.
08:54 AM gregcnc: barrel is filled with what?
08:54 AM Jymmm: nothing
08:55 AM gregcnc: so what is the mass?
08:55 AM Jymmm: the barrel itself
08:55 AM Jymmm: it absorbs all the heat from the combustion chamber then radiates it out the barrel walls
08:55 AM gregcnc: hmm, picutring a 300lb barrel
08:56 AM Jymmm: Well, we calculated 600 BTU from this design, but it's part experiment, and the LAST FUCKING THING I need is toset the walls on fire due to exhaust
08:56 AM gregcnc: yeah
08:57 AM gregcnc: if it's extracting most of the heat, that's great
08:57 AM Jymmm: IF THIS WORKS, whch in therory it should (but we know what theories are), it can be expanded upon...
08:57 AM Jymmm: I could double the barrel and get 1200 BTU as example.
08:59 AM gregcnc: air comes from inside or outside?
08:59 AM Jymmm: gregcnc: Looked at water, and it's thermal mass STORAGE is nowhere close to needs. But thermal mass in TRANSITION is.
08:59 AM Jymmm: Eh, it's a garage, it comes from the cracks =)
08:59 AM SpeedEvil: How do you deal with creosote.
08:59 AM SpeedEvil: And otehr condensates.
09:00 AM Jymmm: SpeedEvil: It burns at FULL COMBUSTION, meaningthe wood gasses are brnt as well, no creosote is created
09:00 AM gregcnc: i guess i'm confused where the mass comes from if you have none
09:01 AM Jymmm: gregcnc: A "mass" does not need to be "solid", in this case it's the barrel itself and "air is the mass"
09:02 AM SpeedEvil: The mass of air in a barrel (assuming 200l) is about 200 grams. It stores going from 200C to 100C about 10000J, or 1000W for 10 seconds worth.
09:02 AM Jymmm: gregcnc: Basically I'm extracting as much heat from between the combustion chamber and the exhaust and "storing" it in the barrel
09:03 AM SpeedEvil: The steel of the barrel adds significantly more.
09:03 AM gregcnc: efficient transfer, Ok I thought most mass heaters actually intended to store it in something other than air
09:04 AM Jymmm: gregcnc: Well, in this case, we're EXTRACTING as much as possible being the primary agenda
09:05 AM gregcnc: definitely less space than trying to store it
09:06 AM Jymmm: Well, this isn't like a traditional wood stove, that you load up and let it burn for hours on end. It will need to have fuel added every 45 minutes or so a handful at a time.
09:06 AM gregcnc: got to get some gravity feed
09:07 AM Jymmm: It's not that, the whole principa is that it burns at FULL COMBUSTION temperatures as fast as it can.
09:07 AM archivist: got to not believe too much hype either
09:07 AM Jymmm: Fuel has mositure, which reduces combustion temperatures
09:08 AM Jymmm: As SpeedEvil mentioned, cresote is created mostly when people damper down their wood stoves for the night in an attempt to allow it to burn all night. then bring it back to life in the morning.
09:09 AM Jymmm: It's the low temperatures that don't burn the cresote and allow it to build up in the flue pipe
09:10 AM JT-Shop: yuck, can't get sheetcam to work on my Linux Mint install
09:11 AM Jymmm: gregcnc: IF this works, I want to expand upon it to do the whole water/radiator thing for the house. Then I can look at gravity fed things
09:12 AM Jymmm: gregcnc: This is basically a glorified electricity-less pellet stove in a way.
09:12 AM Jymmm: ...more than a "wood stove"
09:13 AM Jymmm: And, I might actually be able to get free fuel as it can burn wood chips, and I'm always seeing on CL where tree people are looking to dump/get rid of wood chips for free
09:14 AM gregcnc: right. can you tell how well it's burning so far? exhaust isn't smoky? combustion chamber clean?
09:14 AM SpeedEvil: you will need to dry them
09:14 AM Jymmm: as it's cheaper than taking them to the dump and paying to get rid of them.
09:14 AM SpeedEvil: which can be annoying
09:14 AM Jymmm: SpeedEvil: chicken wire baskets about 4ft cubed
09:15 AM SpeedEvil: Do make sure they can't catch fire due to compostogenic heat.
09:15 AM Jymmm: gregcnc: not yet, still building it. As it's an experiment, I'm not paying $200 for 3" tubing
09:15 AM SpeedEvil: (note that compostogenic is probably not a word)
09:16 AM Jymmm: SpeedEvil: exothermic reaction
09:16 AM Jymmm: SpeedEvil: They woill have lost of air flow, to help promote drying and should prevent that
09:16 AM Jymmm: lots*
09:17 AM JT-Shop: make a mexican pepper roaster without the fire part
09:17 AM Jymmm: cast iron skillet?
09:17 AM JT-Shop: no
09:17 AM Jymmm: thats how I roast my peppers, or a torch =)
09:18 AM JT-Shop: a big drum made from expanded metal that turns with lots of peppers
09:18 AM Jymmm: ah
09:21 AM Jymmm: I made a mini version using popcorn tins, and it worked pretty well. So I'm hoping this will too.
09:21 AM MacGalempsy: Jymmm how are you going to remove the ash?
09:21 AM Jymmm: MacGalempsy: hand shovel?
09:22 AM Jymmm: it has a cleanout
09:35 AM Jymmm: MacGalempsy: Also, there "should" be very little ash produced comparatively.
09:37 AM MacGalempsy: some multi hearth methods would help reduce ash and move it out of the system
09:37 AM archivist: anything up to about 20% ash probably
09:38 AM Jymmm: MacGalempsy: Ash is par for the course when burning any wood, not that big of a deal.
09:45 AM Jymmm: The bigger issue with wood is the sheer amount of handling.... fell a tree, cut into chunks, load on truck, unload/dump on ground, stack on pile without killing your back from bending over to pick up every single piece, Pull off pile and haul near the house to let the surface moisture dry out and get rid of critters, haul inside near stove to dry out more, lather rinse repeat.
09:50 AM JT-Shop: if you have enough velocity in the stack ash is not much of a problem I'd think
09:57 AM gonzo_: if you blow the ash out of the stack, would that not just move it to the barrel?
09:58 AM gonzo_: I've been looking at a rocket mass design for the workshop too. I was initially thinking about using
09:58 AM gonzo_: gravel for the mass. As it can be added in situ and be removed easilly if required
09:59 AM Jymmm: gonzo_: Like I said, ash in par for the course, so least of my worries =)
09:59 AM gonzo_: though that plan did move over to water after a few iterrations in my mind
10:00 AM Jymmm: is*
10:01 AM Jymmm: gonzo_: where are you on the planet?
10:02 AM gonzo_: never been accused of being on THIS planet!
10:02 AM gonzo_: UK
10:02 AM Jymmm: gonzo_: Well, if you have the area for it, geothermal would be much better
10:03 AM gonzo_: the main down side of a rocket stove for me, is prepping wood to be a useable size
10:03 AM Jymmm: buy pellets
10:03 AM Jymmm: use wood chips
10:03 AM Jymmm: Most tree companies have to pay to get rid of them
10:04 AM Jymmm: free fuel, if you can use them.
10:05 AM gonzo_: only have a small plot. I don't know of any wood companies locally. Not much woodland around
10:06 AM gonzo_: my wood mainly comes from pallets and other scrap
10:06 AM Jymmm: Be VERY careful burning pallets, bmost of them are treated and produce nasties when burned.
10:07 AM SpeedEvil: Treated wood varies quite a lot in toxicity - the older stuff is nasty
10:07 AM gonzo_: the arsenic based treatments were banned here quite a long time ago
10:07 AM SpeedEvil: http://www.google.com/patents/EP0695408A1?cl=en as an aside.
10:08 AM SpeedEvil: HEat wood in a steam atmosphere at atmospheric pressure to 180C or so for a couple of hours, and it 'ages' it.
10:08 AM gonzo_: but in a burner with an outside flue, I burn anything. Just care in disposing of the ash
10:09 AM SpeedEvil: Goes a bit brownish, slightly more splintery, absorbs much less moisture, and almost not eaten by insects, fungi, ...
10:09 AM gonzo_: I'm only burning wood to heat the workshop. And just for fun
10:09 AM Jymmm: Look at the marking on the pallets, the international ones contain the nasties (even today)
10:10 AM gonzo_: I have looked at ground source heat, but the electricity req to run the pump will cost as much as using gas to heat dircetlky
10:11 AM gonzo_: will look at the pallets. Don't recall seeing any markings
10:11 AM Jymmm: I find that difficult to believe. You have some numbers?
10:11 AM Jymmm: re: pumps
10:12 AM gonzo_: not to hand. Last I saw was something like 1unit of electicity will produce 2units of heat
10:12 AM archivist: should be 3 units of heat
10:12 AM gonzo_: and that is roughly the price difference of mains gas
10:12 AM gregcnc: 3-4 in modern systems
10:12 AM Jymmm: what is defined as a "unit" ?
10:13 AM archivist: I am actually using an air con here in heating mode
10:13 AM gregcnc: kW
10:13 AM archivist: or BTU
10:14 AM gregcnc: btwhat?
10:14 AM archivist: british thermal unit
10:14 AM SpeedEvil: gonzo_: good ground source to low temperature floor heat can exceed 6
10:14 AM SpeedEvil: COP
10:14 AM SpeedEvil: (kW electrical to kW thermal)
10:14 AM Jymmm: My uninsulated garage needs 30K BTU/hr to raise the temp 30F (iirc), the cost per btu for heat far exceeed the cost of a pump in equiv electricity
10:15 AM Jymmm: It's not uncommon to have a $550 USD per month electric bill in the winter here.
10:16 AM Jymmm: and it's a tiered rate system, the more you use, the higher er KW/hr cost
10:16 AM Jymmm: per*
10:16 AM MacGalempsy: i thought heat in SI is joules
10:17 AM MacGalempsy: the amount of heat to raise 1gm h2o by 1 deg C
10:17 AM archivist: real word still uses old units :)
10:17 AM MacGalempsy: :)
10:17 AM Jymmm: MacGalempsy: I believe there is a conversation, but BTU is commonplace still here in the US
10:17 AM gonzo_: uk gas/electricity prioce per kWhr is about 4:1
10:18 AM Jymmm: 1 lb of wood pellets at "normal" mositure content is apx 7800 BTU
10:19 AM Jymmm: one cord of almond is 34,000,000 BTU's
10:19 AM Jymmm: (well seasoned)
10:19 AM Jymmm: 1KW/hr of electricity is 3413 BTU's
10:20 AM Jymmm: one gallon of propane is 91K BTU's
10:21 AM archivist: my aircon electrical in max 1.6 kw, 12000 BTU out
10:22 AM archivist: rated input is only 1.2 kw
10:22 AM Jymmm: So if you need 9000 BTU/hr to heat your home, you can compare the cost oer btu of the fuel you want to use
10:24 AM gonzo_: piped gas is common in most of the UK, unless you are out in the sticks
10:26 AM gonzo_: otherwise bulk propane or oil is common
10:26 AM SpeedEvil: Dying in the cold is also popular.
10:27 AM gonzo_: yep, whilst sitting an huge savings
10:28 AM archivist: my gas system is fscked so cannot use it without a rebuild
10:28 AM Jymmm: 9000 BTU/hr * 24 hours * 30 days = 6.4 M BTU/month / 3413 BTU/KW = 1.9KW/mo * $0.1534 per KWh = $291.25/mo (
10:29 AM archivist: I am heating a couple of rooms to 18 C for about £20 a week
10:29 AM Jymmm: insulation is a good thing.
10:30 AM archivist: .gov came and did the cavity wall insulation last march
10:30 AM gonzo_: electricity is about 12p/kwh, so about the same. Piped gas is about 3p/kwhr
10:30 AM archivist: well paid for
10:31 AM Jymmm: gonzo_: but looka t any TIERED rates, not the "minimal" ones.
10:31 AM archivist: I wish I got electricity at 12p
10:31 AM Jymmm: gonzo_: that' where ppl get screwed
10:31 AM Jymmm: gonzo_: it's all a game they play
10:32 AM gonzo_: ours is similar, but it's called a standing charge. Basically rental for the service
10:32 AM archivist: we have cheap night rates
10:32 AM gonzo_: most of my bills are electricity. And that is computers
10:33 AM gonzo_: my wood burning is all just for fun. It's nice to go in to the workshop and light a fire. Then.... spe=nd the evening playing with it and getting nothing done
10:41 AM Jymmm: haha
10:42 AM Jymmm: Um... UG MAN MAKE FIRE UG UG UG -insert chest pumps here-
10:42 AM Jymmm: gonzo the [shaved] gorilla
10:50 AM gonzo_: less of the 'shaved'!
10:50 AM Jymmm: gonzo_: hahaha,
11:07 AM Jymmm: Bah, only two results =( https://www.google.com/search?q=trig+for+%2Bdumbasses
11:11 AM archivist: trig for idiots gets 315k
11:16 AM roycroft: trigonometry is the most tedious math course i ever took
11:19 AM Jymmm: archivist: WAY too high-brow for me ;)
11:20 AM archivist: maybe trig for cretins is closer :)
11:28 AM Jymmm: archivist: Maybe
11:28 AM Jymmm: But seriously, wtf... https://upload.wikimedia.org/wikipedia/commons/9/9d/Circle-trig6.svg
11:31 AM cradek: cool picture! but ignore everything but sin and cos.
11:32 AM Jymmm: cradek: Well, the thing is I would need to know what sin/cos/tan actually are for it to matter, thus the 'trig for dumbasses' inquiry =)
11:37 AM Jymmm: cradek: Just curious, have you come across a LIVE PS editor? Something where you can edit a ps file (as a text file) and see the results live graphically?
11:43 AM djdelorie: how live do you need? I use ghostview (gv) for developing PS programs...
11:43 AM skunkworks: ps?
11:43 AM djdelorie: postscript
11:44 AM skunkworks: I thought so.. but got lost with 'developing ps programs'
11:44 AM djdelorie: Postscript is a full programming language that happens to run on printers (and some graphical displays)
11:44 AM djdelorie: I did this entirely as a postscript program: http://www.delorie.com/photos/3d_prints/img_3351.html
11:45 AM skunkworks: ah - did not really know that. Thanks
11:46 AM skunkworks: up to 1.1d.. https://github.com/gnea/grbl
11:46 AM cradek: Jymmm: I think ghostview automatically updates the display when you resave the file
11:47 AM pcw_home: I've done encoder wheel artwork in PS
11:47 AM pcw_home: kind of Forth like
11:47 AM cradek: Jymmm: ignore everything else, and notice how cos and sin are the X and Y coordinates of that point on the circle (since the circle has radius=1)
11:48 AM djdelorie: forth love if honk then!
11:48 AM cradek: I've done grids, sheet music staffs, radial patterns in postscript manually
11:48 AM cradek: labels
11:48 AM cradek: envelopes
11:48 AM * djdelorie used to design CD labels in pure PS
11:48 AM cradek: hmm quite a few things now that I think about it
11:48 AM djdelorie: handy when you can wrap paragraphs around the spindle hole
11:49 AM Jymmm: cradek: I'm starting to read this https://www.mathsisfun.com/sine-cosine-tangent.html But I have to figure out things that are being implied. like what is the TOTAL angles of the ratios they talk about when they say "For a given angle θ each ratio stays the same no matter how big or small the triangle is"
11:51 AM djdelorie: sin, cos, and tan are ratios between pairs of sides on a right triangle, that's all
11:55 AM Jymmm: skunkworks: http://imgur.com/a/kp7UT
11:55 AM Jymmm: skunkworks: "The above postscript file creates this table of prime numbers as a PDF file below:"
11:56 AM Jymmm: except for the font face typo =)
11:56 AM skunkworks: neat
11:57 AM Jymmm: skunkworks: I got it to calculate one million primes in about 5 minutes
11:57 AM Jymmm: I tried one billion, but I choked the application =)
12:00 PM necKro23: better install more ram in your laserjet
12:02 PM Jymmm: necKro23: luckily, I'm converting to PDF (for now)
12:06 PM Jymmm: skunkworks: Another example, in color http://imgur.com/a/FRCjf
12:06 PM skunkworks: I really had no idea
12:07 PM Jymmm: skunkworks: And the thing is it's all vecotr based, so you can go from 4" to 4000 feet and it's all the same =)
12:07 PM Jymmm: vector*
12:08 PM Jymmm: unlike raster/bitmap graphics
12:11 PM Jymmm: How to disassemble your washer in one easy step.... https://www.youtube.com/watch?v=dq6T5BojXc8
12:24 PM IchGucksLive: hi
12:26 PM Loetmichel: Jymmm: hmmm. took a long time considering how out of balance it was.. must have been a quality washer ;)
12:26 PM archivist: djdelorie, I found I was stretching ps trying to do a smith chart (or stretching my maths)
12:27 PM djdelorie: yeah, "can be done" and "easy" are not always correlated :-)
12:29 PM archivist: and then your printer or driver scales/crops to fit
12:33 PM CaptHindsight: gregcnc: sold https://chicago.craigslist.org/nwc/tls/5998801744.html too lazy to remove ad
12:34 PM CaptHindsight: Snake Alley Customs
12:36 PM IchGucksLive: i got realy lucky today
12:36 PM IchGucksLive: will be member of news team in RIO
12:36 PM IchGucksLive: will fly this week so from friday off till unknown
12:37 PM CaptHindsight: IchGucksLive: what news service?
12:37 PM IchGucksLive: No comment
12:37 PM Jymmm: Must be FOX NEWS =)
12:37 PM CaptHindsight: do we look for you on TV or?
12:38 PM IchGucksLive: years ago ive been in the media box
12:39 PM CaptHindsight: Fuchs is German for FOX, seems more fitting
12:40 PM CaptHindsight: IchGucksLive: try not to get bitten by mosquitoes
12:40 PM CaptHindsight: but the weather is nicer
12:41 PM IchGucksLive: CaptHindsight: it usaly starts at nightfall and ends early up in the morning
12:41 PM IchGucksLive: more horror on raping gangs
12:46 PM gregcnc: capthindsight price was good
12:47 PM CaptHindsight: yeah
12:47 PM CaptHindsight: https://rockford.craigslist.org/tls/5989277704.html red oxide treated round rails
12:48 PM archivist: round bar spring mounted chatter machine
12:48 PM CaptHindsight: https://chicago.craigslist.org/chc/tls/5966185714.html down to $975 from 1200
12:49 PM gregcnc: with no feed or threading I don't think those bring much
12:50 PM CaptHindsight: another SB for $1500 https://chicago.craigslist.org/nwi/tls/5999590757.html
12:55 PM CaptHindsight: gregcnc: I see them all the time, but I never hear the final sale price
12:56 PM gregcnc: the old SB?
12:57 PM CaptHindsight: the feedless Hardinges
12:57 PM CaptHindsight: nice if you plan on CNCing
12:57 PM archivist: that sb is similar vintage/style to mine
12:58 PM gregcnc: I did think about that at some point with the small 2nd OP lathe
12:59 PM gregcnc: this is probably more useful https://chicago.craigslist.org/nwi/tls/5971094977.html
12:59 PM CaptHindsight: archivist: how have you found them to behave?
01:01 PM CaptHindsight: https://chicago.craigslist.org/nwc/tls/6002121609.html $1700 , they steady looks way to big for that
01:01 PM archivist: CaptHindsight, good solid lump except for spindle bearing wear, bed wear and flat belt
01:02 PM archivist: flat belt slips under modern cutting conditions
01:02 PM gregcnc: HSL seem to be worth this kind of money any day https://chicago.craigslist.org/sox/tls/6000266346.html
01:04 PM CaptHindsight: archivist: I'm considering converting one to variable speed
01:04 PM CaptHindsight: if nothing else comes up
01:04 PM CaptHindsight: and I find one in good enough shape
01:05 PM gregcnc: VFD solves that
01:06 PM CaptHindsight: what the top RPM on the stock motor and bearing?
01:06 PM archivist: you could mount toothed belts to avoid slip
01:07 PM archivist: plain split bearings
01:08 PM archivist: if you look at channel archive I measured my RPMs for someone some time ago, 2-3 years?
01:09 PM archivist: motor mount http://www.collection.archivist.info/archive/DJCPD/PD/2010/2010_05_26_Southbend_lathe/IMG_0715.JPG
01:10 PM CaptHindsight: https://images.craigslist.org/00e0e_4sNXUaZgccu_1200x900.jpg scraping on the ways or just compression artifacts?
01:11 PM archivist: looks like an oil holding pattern
01:14 PM archivist: mine has significant bed wear needs reworking so I avoid long work usually
01:14 PM MacGalempsy: that hardomge sure is tiny
01:20 PM IchGucksLive: MacGalempsy: all running on plan
01:22 PM MacGalempsy: well kind of. i got called out on location, so havent been able to do any milling since we chatted last
01:23 PM MacGalempsy: guess it will be simulator time
01:25 PM CaptHindsight: https://madison.craigslist.org/tls/5990057650.html Herbert Lathe - $1750 school district
01:26 PM CaptHindsight: do high schools still have shop classes?
01:27 PM gregcnc: maybe only where manufacturing is still a big part of the community
01:27 PM Tom_itx: some around here do
01:29 PM gregcnc: I wonder if the high school I went to still has machines in it. they were there when i went, but nobody took the classes
01:29 PM gregcnc: that lathe has the biggest dial i've ever seen
01:29 PM Tom_itx: is 9 finger bob still the teacher?
01:30 PM Jymmm: It sucks of the schools no longer had wood/metal shop classes
01:30 PM Jymmm: if*
01:30 PM djdelorie: our local high school still has shop, but neither of my kids had time to take those classes... they're part of our vocational-technical track
01:30 PM Tom_itx: our vo tech is awesome
01:31 PM CaptHindsight: https://images.craigslist.org/00303_f0lBXBtr1Eh_1200x900.jpg what does the lower left crank most likely do?
01:31 PM gregcnc: i was guessing variable speed
01:31 PM CaptHindsight: what is the top left one for then?
01:32 PM Tom_itx: maybe one is variable feed
01:33 PM CaptHindsight: look at all the threaded rods with bolts for stops by the cross slide crank
01:34 PM archivist: I have spent time on a Herbert No1
01:35 PM CaptHindsight: archivist: was it bigger or smaller than the 2d?
01:35 PM gregcnc: so it has separate stops for the carriage and turret
01:35 PM sync_: that looks like a highly overengineered lathe
01:35 PM gregcnc: apparently it might have a 4 speed motor
01:36 PM CaptHindsight: I kind of like it
01:36 PM archivist: CaptHindsight, smaller http://www.collection.archivist.info/archive/DJCPD/PD/2008/2008_10_07_Richards_of_Burton_clockworks/P1010205.JPG
01:37 PM CaptHindsight: as soon as I get it I'll need one with 2" more inches of travel
01:37 PM archivist: made for production unlike a soutbend
01:38 PM CaptHindsight: 1.5x the mass at least
01:39 PM gregcnc: tons o pics http://www.practicalmachinist.com/vb/general/opinions-herbert-no-2d-turret-lathe-pics-187228/
01:41 PM CaptHindsight: https://milwaukee.craigslist.org/tls/6000820080.html 9ft LATHE, is that like a 9000lb mill?
01:42 PM IchGucksLive: gregcnc: that is the old fashon way
01:42 PM IchGucksLive: adapters on a mass scale
01:42 PM archivist: CaptHindsight, 1930's light weight
01:42 PM IchGucksLive: there is also a half automate so it turns the turret on back
01:43 PM CaptHindsight: "Since it's British, it's a capstan lathe, not a turret lathe"
01:43 PM gregcnc: what is old fashioned way?
01:43 PM gregcnc: yeah i caught that
01:43 PM IchGucksLive: in 1978 i guess i worked on one of this
01:44 PM IchGucksLive: making tiny parts for vacuum channleing
01:44 PM IchGucksLive: and i did the same in 1986 on a traub T8
01:44 PM IchGucksLive: with less part out put
01:45 PM IchGucksLive: im off Gn8
01:46 PM gregcnc: so it seems that it may not thread? use a die head for threading
01:49 PM archivist: die heads
01:50 PM archivist: human operated
01:52 PM archivist: I wonder how many capstans are still being worked hard
01:53 PM CaptHindsight: I rarely make more than a few of anything
01:54 PM archivist: set up time is a lot for capstans, about as bad as cnc
01:55 PM archivist: plain manual for one to few off
01:55 PM CaptHindsight: yeah, still looking, the Herbert just looks well made
01:56 PM archivist: they are
01:57 PM archivist: we were making clock winding key parts on the No1
01:57 PM CaptHindsight: I have some left over linear servos that I need to find a nice spindle to go with
02:06 PM CaptHindsight: http://www.nelsonair.com/NA_prods_spindle.htm
02:17 PM CaptHindsight: http://www.ebay.com/itm/Z128932-Dover-5-inch-Air-Bearing-Work-Spindle-for-CNC-or-Diamond-turning-Lathe-/272293584388 I've never had them answer a question
02:21 PM CaptHindsight: https://abtechmfg.com/precision-motion/air-bearing-spindles/ maybe 138 or the 180 or similar
02:33 PM cpresser_ is now known as cpresser
02:34 PM SpeedEvil: Do air bearings wear?
02:35 PM SpeedEvil: I guess it's only if they're spinning and there is no air, or overload?
02:36 PM CaptHindsight: thats about it
02:37 PM SpeedEvil: I wonder how fucked up they can be and still apparently spin freely
02:37 PM CaptHindsight: worst case is losing air at high speed under load
02:38 PM CaptHindsight: if you use granite they won't be too bad unless they crack
02:39 PM CaptHindsight: but radial bearings are rarely granite
02:44 PM CaptHindsight: http://www.newwayairbearings.com/sites/default/files/new_way_application_and_design_guide_%20Rev_E_2006-01-18.pdf lots of discussion on the applications and design
02:44 PM SpeedEvil: hmm
02:45 PM SpeedEvil: bedtime reading
02:45 PM CaptHindsight: https://www.youtube.com/watch?v=YePO2yNFoCE crash test
02:46 PM CaptHindsight: the crash is ~0:50
02:48 PM CaptHindsight: https://www.youtube.com/watch?v=-Oi4_NNH0EU
02:49 PM SpeedEvil: I would want to be wearing considerably more protective gear
02:51 PM CaptHindsight: yeah I noticed that as well :)
02:52 PM gregcnc: usually air tank, with check valve and brake before air runs out
02:53 PM CaptHindsight: https://www.youtube.com/watch?v=tst_1oCuWqw Air Bearing Flycutter
03:02 PM CaptHindsight: SpeedEvil: https://www.youtube.com/watch?v=YIjfGjnxDtM after the crash it tested better than 10 nanometers total error, axial and radial, from 500 to 10,000 rpm
03:03 PM CaptHindsight: that was with only the spindle itself as the load
03:06 PM CaptHindsight: the readouts have numbers in the 0.1 angstrom column, so don't take them too seriously
03:09 PM CaptHindsight: the atomic diameter of a carbon atom is 3 angstroms
03:09 PM jensor: When a pause mode is actuated "halui.program.is-paused" goes true. However after a step is performed "halui.program.is-paused" goes false and remains there through further steps until "halui.program.resume" is actuated.
03:11 PM jensor: At that point it indicates properly because the program is running. But is is misleading for it to change state during a pause condition.
03:11 PM jensor: But is is misleading for it to change state during a pause condition.
03:12 PM jensor: But it is misleading for it to change state during a pause condition.
03:12 PM jensor: I'll get it right eventually.
03:59 PM Deejay: gn8
04:58 PM station: are these motors any good https://de.aliexpress.com/item/3PCS-59Ncm-84oz-in-Nema-17-Stepper-Motor-2A-4-wire-1m-Cable-for-DIY-3D/32604882068.html?
05:12 PM tumdedum_ is now known as tumdedum
05:21 PM Tom_itx is now known as Tom_L
06:01 PM JT-Shop: what a long day down at the industrial park
06:15 PM JT-Shop: kicked a PLC's ass today :) ... finally
06:16 PM enleth: so we had to buy a new fume extractor motor for an extractor that was installed here in 1996. turns out the manufacturer is still in business and still makes that particular model - but they replaced a sheet metal motor/impeller housing in their design with a cast aluminum one, which is 2mm wider than the old mounting bracket
06:16 PM enleth: solution: drop it on the bridgeport and mill the 2mm off
06:17 PM Loetmichel: enleth: ahem.
06:17 PM Loetmichel: do you think thats a good idea rigidity-wise?
06:18 PM enleth: it's basically a thick-walled aluminum tube in which the motor is mounted on some struts
06:18 PM enleth: and it's too long
06:18 PM enleth: actually, yeah, long is a better word than wide
06:19 PM gregcnc: out of curiosity, make of extractor?
06:19 PM enleth: too wide to fit the opening in the bracket, which means too long along the axis of the motor
06:21 PM enleth: gregcnc: S&P
06:21 PM enleth: it's a TD-1300/250
06:21 PM gregcnc: ah, klimawent is in town
06:22 PM enleth: that thing really moves a serious amount of air
06:23 PM enleth: powered on the benchtop, it blew off some tools I did not care to move out of the way, not expecting them to start flying
06:23 PM JT-Shop: I need to write a plasma cam software I think
06:24 PM enleth: the impeller is some kind of hybrid radial/axial design, stupidly high CFM for the size
06:45 PM minibnz: ok i have my new motor mounted on my Z axis with the gearbox. and i think i have even managed to reduce the backlash in the Z axis.. not too sure by how much yet but now when i tell it to change directions from up to down or down to up i see the head move before it has finished trying to take up the backlash distance i have set in the settings..
06:45 PM minibnz: its looking good. but i have to go out for a bit now.. will be back later.. just had to share my joy..
06:45 PM minibnz: talk with you all later..
07:50 PM malcom2073_ is now known as malcom2073
08:02 PM Devilhol1 is now known as Devilholk
09:10 PM Cromaglious_: FINALLY! Got my 80% finished!
09:11 PM Cromaglious_: Safety hole is a bit crooked... That was the drill press vice slipping a bit
09:12 PM Cromaglious_: now to save up for the rest of the parts
09:13 PM pink_vampire: hi
09:14 PM pink_vampire: any life?
09:16 PM gregcnc: 7.5 million and going strong
09:16 PM gregcnc: Billion
09:16 PM pink_vampire: good!
09:16 PM jdh_: good for us, not so good for other species
09:17 PM pink_vampire: i did a face mill on aluminum
09:17 PM pink_vampire: 4f hss end mill
09:17 PM pink_vampire: http://i.imgur.com/4t7IF28.png
09:17 PM pink_vampire: what do you think?
09:17 PM jdh_: it is very satisfying
09:17 PM pink_vampire: no no no
09:18 PM gregcnc: that is acceptable. Corner radius or wiper flat?
09:18 PM pink_vampire: look at this pic http://i.imgur.com/FPM0jir.png
09:20 PM pink_vampire: I think is the best face operation ever on the G0704
09:21 PM jdh_: Ok!
09:22 PM jdh_ is now known as jdh
09:22 PM pink_vampire: ever done on*
09:22 PM jdh: I got a cheap shars face mill. It is pretty sweet on Al
09:23 PM pink_vampire: mirror?
09:23 PM jdh: yes
09:23 PM pink_vampire: like that ^
09:23 PM jdh: faced in one pass, no marks
09:24 PM jdh: a good cut is personally satisfying
09:24 PM pink_vampire: this is just very used 4f endmill I think it's 9/16"
09:25 PM pink_vampire: I never saw a mirror finish like I got on the g0704
09:25 PM jdh: but, for most stuff I get made by pros, they would just go back and forth as long as it meets surface finish spec
09:26 PM jdh: did you do some square pattern thing or is that just optical?
09:26 PM pink_vampire: I did X moves then Y then X
09:27 PM pink_vampire: and all the time cleaning the chips
09:27 PM gregcnc: collant?
09:27 PM pink_vampire: nothing
09:27 PM pink_vampire: dry cut
09:28 PM pink_vampire: gregcnc: ^
09:29 PM gregcnc: some lube can improve it
09:47 PM jdh: do you have field power applied to the 7i84
10:05 PM pink_vampire|2 is now known as pink_vampire
11:33 PM R2E4_bevins: yes there is field power. The docs seem to state W1 in left position gives field power on half the input/outputs