#linuxcnc Logs

Mar 25 2022

#linuxcnc Calendar

01:24 AM mrec_: is it normal that spindle-index-enable turns to falls once it got triggered?
02:22 AM Deejay: moin
04:53 AM Tom_L: morning
04:54 AM JT-Cave: morning
05:53 AM mrec_: which purpose does "thread peak" have?
06:17 AM toulene3 is now known as toulene
07:43 AM mrec_: any idea why on G76 threading only X moves in/out a few times and then linuxcnc is stuck?
07:43 AM mrec_: I had it work before but when I started to home the entire machine it stopped to work and now G76 just hangs
07:44 AM JT-Cave: prob waiting on an index from the spindle
08:05 AM mrec_: it also happens at 50rpm it's very unlikely
08:13 AM mrec_: linuxcnc doesn't have something like logs no?
08:14 AM mrec_: there's nothing useful in the "logfile" file in /tmp/...
08:23 AM mrec_: right the index cable broke
08:56 AM Loetmichel: *snicker* german nicknames for stuff are funny. neighbor is cutting down some trees. $me: "Mann, kann der typ mit dem Fichtenmoped mal aufhören?" Romanian coworker: "Whats a Fichtenmoped?" "Yah know, literal translation would be "Spruce scooter"... but its a nickname for chainsaw." He loled. :)
09:45 AM mrec_: G76 just works fine with the parallel port that's so nice
09:45 AM mrec_: I was concerned that it's not fast enough
09:45 AM mrec_: no more gear swapping
09:59 AM mrec_: argh still the documentation sucks
09:59 AM mrec_: what the heck are the amount of passes
09:59 AM mrec_: my weak lathe got stuck and at the end broke the tool
10:04 AM mrec_: maybe it's J but it should be written much clearer in the documentation
10:04 AM mrec_: who knows what an initial cut is ... the first cut only or all of them
10:17 AM mrec_: happy that it works but unhappy about the bad documentation which damaged the only tool which I had here
10:39 AM CloudEvil: 2021 is now :/
10:39 AM CloudEvil: oops
10:40 AM CloudEvil: mrec_: if you find problems with docs, consider submitting patches.
11:07 AM mrec_: >J- - A positive value specifying the initial cut depth. The first threading cut will be J beyond the thread peak position.
11:08 AM mrec_: wouldn't cut depth per pass be easier to understand?
11:08 AM mrec_: initial cut depth sounds a bit weird, especially if someone is looking at youtube videos he will find that many people are doing a "scratch pass" first
11:11 AM CloudEvil: It's sort of implied, unless the first cut is the only cut.
11:11 AM CloudEvil: It is reasonably arguable it could be improved.
11:25 AM mrec_: finally I messed up the part seems like I did not tighten it enough in the chuck
11:25 AM mrec_: anyway it was a good lesson I'll do it again tomorrow
11:29 AM unterhaus_: I wonder if the impulse to ask for advice and then take offense at every suggestion has a name in literature
11:29 AM unterhaus_: reference is r/cnc, not here
11:53 AM roycroft: i believe in the clinical journals it's called "typical internet behavior", unterhaus_
11:54 AM unterhaus_: the guy in question said his router was losing position, but then any time someone suggested anything he said it had only been used for 90 hours so that couldn't be it
11:55 AM unterhaus_: having monitored cnc posts for a while, it's usually the pulleys.
11:55 AM roycroft: this is a big problem with a lot of internet interactions
11:55 AM roycroft: a person poses a question without providing sufficient context
11:55 AM unterhaus_: he was being treated somewhat poorly otherwise though
11:55 AM roycroft: people start assuming context and respond accordingly, without doing what they should be doing - asking clarifying questions
11:56 AM unterhaus_: got into an argument about the machine being a pro cnc, for one thing
11:56 AM roycroft: well i have no idea what that is supposed to mean, so i would not engage in such an argument
11:56 AM unterhaus_: exactly
11:56 AM roycroft: anyway, happy friday!
11:57 AM unterhaus_: it's a kit, so not that pro. But OTOH, it's built just like pro machines
11:57 AM * roycroft is on vacation again today
11:57 AM roycroft: a "pro" machine, in my view, is a machine that is use professionally
11:57 AM unterhaus_: I know crummier machines are being used by sign shops everywhere
11:58 AM roycroft: a $50k cnc router can be a hobby machine if it's used to support a hobby
11:58 AM roycroft: a $400 shop-built machine is a pro machine if one is generating revenue from it
11:58 AM unterhaus_: it's just not worth arguing, because there is no line between pro/not pro
11:58 AM roycroft: and that's as close as i want to get on that topic
11:58 AM unterhaus_: although my original shopoko is definitely not pro
11:59 AM unterhaus_: by your criteria, I guess I'm wrong about my shopoko not being pro.
11:59 AM roycroft: i don't ascribe any qualitative meaning to the word "pro"
12:00 PM unterhaus_: true, it has no real meaning
12:00 PM unterhaus_: in my hands, a million dollar machining center might not be considered pro
12:02 PM roycroft: i've been wanting to do some upgrades to my dust extraction setup for a long time
12:03 PM roycroft: i converted the extractor to a 2 stage system a year or so ago
12:03 PM roycroft: but all i've had is a 4" flexible hose running the entire run - it's about 30' long
12:03 PM roycroft: i wanted to hard plumb some of that ductwork, with 5" instead of 4"
12:04 PM roycroft: and i wanted an easier way to empty the stage 1 receptacle
12:04 PM roycroft: i needed some 6" flanged fittings to do the latter, and it's been rally hard to find them
12:04 PM roycroft: i finally found one place that had what i needed, but they charge $30 per fitting (i need two)
12:05 PM roycroft: i thought that would be ok, until they told me it would cost $120 to ship them
12:05 PM roycroft: like in a fairly small box, ups ground
12:06 PM roycroft: i found some hvac parts yesterday and procured them and some sheet metal for about $20 total
12:06 PM roycroft: today i'll fabricate my own flange fittings
12:06 PM roycroft: i seriously dislike companies that treat shipping as a profit center
12:07 PM roycroft: and i'm not saying i expect them to charge for the exact cost of the actual shipping
12:07 PM roycroft: calculating a reasonable cost for the shipping box and packing materials, and the labor involved in packing the product, is fine
12:07 PM roycroft: but $120 to put two pieces of metal in a box is beyond ridiculous
12:08 PM roycroft: and, of course, it was one of those places that said 'we cannot calculate shipping cost online - place your order and we will call you with the total including shipping'
12:11 PM roycroft: i suppose it's possible that it actually does cost them $120 to ship - if they us the amazon packing model, those two small flanges may show up in a refrigerator-size box
12:11 PM roycroft: but amazon don't charge me for that kind of stupidity
12:41 PM unterhaus_: I have taken years to talk myself into permanently mounting dust collection ducting to my ceiling
12:41 PM unterhaus_: it's just some screw holes and the ceiling needs drywall work anyway
12:49 PM roycroft: the flexible hose is suspended from the ceiling
12:49 PM roycroft: and the rigid ductwork will be the same
12:49 PM roycroft: what i need is two branches
12:50 PM roycroft: i can eliminate almost all of the flex hose if i set up an overhead rigid duct with a pants splitter on the end
12:50 PM roycroft: i'm not interested in an automatic blast gate setup or anything fancy like that
12:51 PM roycroft: i did make a remote power switch for the collector itself, since it lives in a shed outside the shop
12:51 PM roycroft: but that's as far as i need to go
12:51 PM * roycroft wants to keep it as simple as is practical to do
12:58 PM Tom_L: mrec_, that's why we cut air if we're unsure :)
12:59 PM JT-Shop: for some reason my planer started putting a 2" long snipe on the leading edge...
01:00 PM Tom_L: board kicking up?
01:01 PM roycroft: check both the upper and lower roller alignment
01:04 PM JT-Shop: lower are 0.001" above the plate
01:05 PM JT-Shop: I wonder if the infeed roller is sticking up after the board lifts it up
01:11 PM roycroft: that could cause it for sure
01:12 PM roycroft: sounds like time to pull the springs and rollers out and clean them up
01:12 PM JT-Shop: yup
01:12 PM roycroft: those machines are a pain to maintain, because you need to lubricate them or things stick, and when you lubricate them sawdust cakes on the lube and things stick
01:17 PM Tom_L: find some dry lube?
01:18 PM unterhaus_: I need to crank up my planer, but I don't wanna
01:19 PM unterhaus_: I wish I had a combo jointer/planer, even given their problems. Space is more valuable than performance
01:19 PM mrec_: Tom_L: the stock was not firm in the chuck ...
01:20 PM mrec_: I should disassemble the chuck and clean it I know that
01:20 PM unterhaus_: 8" DJ20 jointer takes up a lot of space
01:21 PM mrec_: I'm happy that the magnetic encoder which I harvested from the closed loop stepper is doing its job
01:21 PM mrec_: A1333
01:21 PM mrec_: the initial plan was to use an AS5048 but it has no ABI output
01:33 PM mrec_: can anyone recommend another magnetic encoder?
01:43 PM CaptHindsight[m]: mrec_: complete encoder or just the IC?
01:45 PM mrec_: just the ic
01:49 PM CaptHindsight[m]: AS5147's have ABI
01:51 PM CaptHindsight[m]: also AS5247's
01:51 PM CaptHindsight[m]: and the same 14 bit res
01:51 PM roycroft: tom_l: folks have tried dry lubes on thicknessers, and generally report poor results
02:46 PM * JT-Shop looks at a Powermatic 1791213 15HH Planer
02:51 PM JT-Shop: the 209HH is a beast
03:33 PM roycroft: i've often thought about a 20" thicknesser
03:33 PM roycroft: it would be useful on a semi-regular basis
03:34 PM roycroft: but i have managed to get by with the 15" for a long time, and a 20" would be much larger
03:34 PM CaptHindsight[m]: snow possible later and down to 18 tomorrow night
03:34 PM CaptHindsight[m]: no spring for you!
03:34 PM roycroft: since i plan to make smallish items in production, sticking with what i have is probably best
03:39 PM roycroft: are powermatic machines still made in the usa, now that they're owned by jpw industries?
03:41 PM CaptHindsight[m]: https://machineatlas.com/guides/powermatic-table-saw-guide-all-models-compared/
03:42 PM CaptHindsight[m]: "but nowadays they are produced in China and Taiwan"
03:42 PM roycroft: that's what i thought
03:42 PM CaptHindsight[m]: JPW Industries, Inc. manufactures and markets a wide range of machinery and equipment under the JET, Powermatic, Wilton, Edwards and Promac brands. In addition to its La Vergne headquarters, the company has operations in Switzerland, Germany, Russia, France, Taiwan, and China
03:42 PM roycroft: their website cleverly hints that they have american origins, but does not explicitly state where they are made
03:43 PM roycroft: so that being known, powermatic do still make nice machines, but they cost 2x as much as grizzly, and are pretty much the same quality as grizzly
03:43 PM CaptHindsight[m]: I'm back of the napkin working on a CNC drill for PCB's using all USA made everything
03:44 PM roycroft: i do like powermatic gold/yellow better than grizzly green, but if color is a big issue i know i can paint a grizzly machine for less than $2500
03:44 PM CaptHindsight[m]: I wonder how much they will cost
03:44 PM roycroft: i remember when jeremy schmidt was building his first generation belt grinder he tried to source 100% made in usa parts
03:45 PM roycroft: he ended up getting imported rubber rollers, because he could not find any made here
03:45 PM roycroft: but iirc he replaced the bearings on the rollers with us-made beaerings
03:46 PM roycroft: i'm not going to suggest that there is anything good coming out of this russian war with ukraine, but perhaps the thinnest of silver linings might be that we're rapidly changing our energy and manufacturing policies so that we do not depend so much on foreign sources
03:46 PM CaptHindsight[m]: rubber or urethane?
03:46 PM roycroft: urethane
03:47 PM CaptHindsight[m]: lots of them made here in either
03:47 PM roycroft: maybe the rollers themselves were made here, but shipped with foreign bearings
03:47 PM CaptHindsight[m]: I can spec just about anything for rollers since they are still used in printing presses and converting equipment
03:48 PM roycroft: i take what is the prudent and practical approach for me
03:48 PM roycroft: i buy usa-made whenever it's feasible to do so
03:48 PM roycroft: but when made in usa doubles the price, and i can get the quality i need from something imported, i'm not afraid to go with the import
03:49 PM CaptHindsight[m]: this kid? https://www.youtube.com/channel/UC0T7tvy44mlQCjaTtparOZw
03:49 PM roycroft: yes, him
03:49 PM roycroft: and yes, i forgot
03:49 PM roycroft: he goes by 'jer' now
03:49 PM roycroft: he used to go by 'jeremy'
03:49 PM CaptHindsight[m]: don't want to sound stuffy
03:50 PM roycroft: i don't think 'jeremy' sounds stuffy
03:50 PM roycroft: most names do not
03:51 PM CaptHindsight[m]: anything more than a sentence fragment may be stuffy sounding to many
03:51 PM CaptHindsight[m]: also big words
03:51 PM roycroft: perhaps "jefferson beauregard sessions iii" is a bit stuffy
03:51 PM CaptHindsight[m]: text under 14 point
03:51 PM roycroft: but for the most part, names are names
03:52 PM roycroft: maybe he shortened it because he's in a hurry
03:52 PM roycroft: anyway, he's the one who tried to make it 100% usa sourced and found he could not
03:53 PM roycroft: his first gen grinder is the one i built, and i'm quite happy with it
03:53 PM roycroft: although i'm considering building the 2nd gen now
03:54 PM roycroft: i have some accessory arms that i want to add - a large contact wheel and a set of small contact wheels - that will fit on one or the other designs, but not both
03:54 PM enleth: roycroft: I literally just had a discussion in which I expressed my hopes of this war being a wakeup ass-kick for EU, to start manufacturing more stuff locally instead of just getting it from China
03:54 PM roycroft: it already has been in one respect, enleth
03:54 PM roycroft: the eu army is a go
03:54 PM roycroft: something that some eu members have been working on since 2010
03:55 PM CaptHindsight[m]: enleth: yeah, it has to hit home really hard for some to wake up
03:55 PM roycroft: i think the eu and the usa are both thinking along the same lines - decrease our dependency on russia and china
03:55 PM roycroft: and again, trying to find the slimmest of silver linings in horrible situations
03:56 PM roycroft: i think that our former president set the stage for the eu to think about an eu army
03:56 PM roycroft: and the russian invasion sealed the deal
03:56 PM CaptHindsight[m]: enleth: much of the reshoring talk on the news is a bit misguided, like mentioning semiconductor fabs vs all electronic manufacturing
03:56 PM roycroft: nato is in a much better position now than it has been in a long time
03:56 PM roycroft: but there's still a possibility that our former president may win in 2024
03:56 PM CaptHindsight[m]: but at least it is a start
03:56 PM roycroft: and would likely pull us out of nato
03:56 PM enleth: roycroft: to be honest, both his and Putin's blunders are turning out to be highly formative
03:57 PM roycroft: yes
03:57 PM roycroft: i'm not a very good "liberal"
03:57 PM CaptHindsight[m]: the danger of stupid people, they aren't harmless
03:57 PM roycroft: although people label me as one, and then complain that i don't behave properly as one
03:57 PM CaptHindsight[m]: easily exploited
03:58 PM roycroft: i've been warning about our dependence on foreign sources for materials and goods that are foreign-sourced for most of my life
03:58 PM roycroft: and especially about our dependence/interdependence on foreign energy sources
03:59 PM enleth: most policies, strategies and worldviews are only applicable to specific circumstances and the real world has to be navigated using a combination of them, as appropriate
04:00 PM roycroft: i was not a fan of bill clinton at all
04:00 PM roycroft: i voted for him, because it was a typical lesser of evils thing
04:00 PM roycroft: but i was and am 100% against nafta
04:00 PM roycroft: i think it was a horrible treaty
04:00 PM roycroft: and then he looked me in the eye and lied to me when he said "i did not have sexual relations with that woman"
04:00 PM enleth: globalization is not a bad thing in and of itself, it can absolutely lead to some excellent results and things that would otherwise have been impossible, but for fuck's sake, don't rely on it for everything
04:01 PM roycroft: i don't care if he did or did not
04:01 PM roycroft: i care that he lied to me
04:01 PM roycroft: i agree that globalization is not inherently bad
04:01 PM enleth: especially when it turns out to be "chinalization" because you're not actually sourcing stuff "globally"
04:01 PM CaptHindsight[m]: enleth: how much greed is enough?
04:01 PM XXCoder: yeah. though he did take massive losses from watergate
04:01 PM roycroft: but i believe in fair trade, not free trade
04:01 PM CaptHindsight[m]: these people can't stop themselves
04:02 PM XXCoder: gop tried to pin it on him, but completely failed, because clinton lost so much money on watergate
04:02 PM CaptHindsight[m]: why it takes such a shock to get them to wake up
04:02 PM roycroft: and our "globalization" treaties have been very much unfair except to the 1%
04:02 PM XXCoder: so they scaped barrel and found sexual relationships.
04:02 PM roycroft: watergate was nixon's scandal :)
04:02 PM roycroft: lewinsky was clinton's
04:02 PM XXCoder: it was, later on
04:02 PM CaptHindsight[m]: roycroft: they don't believe in fair other than fair meaning "what is best for me , myself and I"
04:02 PM XXCoder: it was initially not
04:03 PM roycroft: correct
04:03 PM roycroft: the original scandal was "governing while duly elected as a democrat"
04:03 PM XXCoder: oh yes!
04:03 PM XXCoder: whitewater@
04:03 PM roycroft: yes
04:03 PM XXCoder: no wonder i confused it with watergate
04:03 PM CaptHindsight[m]: well China should be owning much of Russia after this
04:04 PM CaptHindsight[m]: might have been the plan al along anyway
04:04 PM CaptHindsight[m]: if they are as smart as they think they are
04:04 PM roycroft: whitwater was the original guise of a scandal
04:05 PM XXCoder: yep and in case of clintons, it was nothingburger, as they wasnt part of scam, but was scamees
04:05 PM roycroft: but the real truth is, clinton's main problem was timing
04:05 PM roycroft: he was elected right after the iron curtain fell
04:05 PM roycroft: and the iron curtain is what kept the right and the left in this country being civil to each other
04:05 PM CaptHindsight[m]: and all the assasinations they are behind :)
04:05 PM roycroft: as soon as the soviet threat went away, newt gingrich declared war on democrats
04:06 PM roycroft: and it's all gone downhill since then
04:06 PM XXCoder: pre-clinton I'd maybe vote for republican or democrat depending, but during clinton era yeah they was already turning horrible
04:06 PM XXCoder: and its been worse and worse since
04:06 PM enleth: CaptHindsight[m]: we'll probably never know for sure, but rumor has it that Putin has been completely fooled by his own yes-men telling him what he wants to hear instead of the truth, and the Chinese government did not care to verify that information when Putin asked them for their backing (as we do know pretty much for sure that they knew about the invasion weeks in advance, at least)
04:06 PM roycroft: the ukraine war is reuniting the right and the left in this country, to a degree
04:07 PM roycroft: enleth: that's the problem when you surround yourself with sychophants
04:07 PM enleth: CaptHindsight[m]: which is why their public statements on the whole war have been very awkward
04:07 PM enleth: and they're visibly trying to support it but not too much and distance themselves from the whole thing
04:07 PM XXCoder: im starting to wonder if some people who still insist on russia invasion being justice was paid by them
04:08 PM CaptHindsight[m]: enleth: sure, but I'm reaching further to the Chinese actually encouraging Putins yes men
04:08 PM roycroft: our former president, i think, truly believes that the election was "fixed", because he wanted to believe it and surrounded himself with people who confirmed that
04:08 PM roycroft: or "rigged"
04:08 PM roycroft: that's the word he likes to use, i'm pretty sure
04:09 PM enleth: XXCoder: there's definitely a swath of paid trolls, bought out influencers and the likes
04:09 PM XXCoder: yeah im talking about politicans though
04:09 PM enleth: XXCoder: and surely some morons who provide their support for free, too
04:09 PM CaptHindsight[m]: so far I don't see much of this war hurting China much
04:09 PM * roycroft points out that all of this is why he no longer has faith in politicians, and has mostly detatched from politics
04:10 PM CaptHindsight[m]: in fact China has much to gain from being a large customer of Russian gas and oil
04:10 PM roycroft: my interest these days is more in what is right and what is wrong, and that has nothing to do with any politicians or their parties
04:10 PM CaptHindsight[m]: same for India
04:10 PM enleth: CaptHindsight[m]: not directly, but everyone is looking at them and surely the fact that NATO, EU and "the west" is getting stronger and more united is not what they wanted
04:10 PM CaptHindsight[m]: follow the money and power
04:11 PM roycroft: yes, enleth
04:11 PM roycroft: putin is getting the completely opposite reaction from the west to his invasion to what he expected
04:11 PM roycroft: he wants to crush nato
04:11 PM enleth: India so far looks like they just want to stay the fuck out of the whole issue and avoid saying anything for or against any side
04:11 PM roycroft: instead, he not only strengthened nato, he caused the eu to form its own army
04:12 PM CaptHindsight[m]: I don't think that China or India are surprised
04:12 PM roycroft: and there are several eu members, mostly in eastern europe, who are not nato members
04:12 PM roycroft: they will be protected by the eu army now
04:12 PM CaptHindsight[m]: India called it on Nato not getting involved directly
04:13 PM enleth: it doesn't help that India has its own issue with Pakistan, with some parallels to the Russia-Ukraine conflict
04:13 PM enleth: although that's more of their own little cold war, as both countries have nuclear weapons and just remain in a weird stalemate
04:13 PM CaptHindsight[m]: look at how India is responding to the war, watch their "news"
04:14 PM roycroft: btw, i think it's funny that putin is demanding that eu customers pay for russian energy in rubles (which is a breach of contract, btw)
04:14 PM roycroft: because the ruble is doing nothing but declining in value
04:15 PM enleth: it's gaining lately, but how much of that is due to artificial interventions remains to be seen
04:15 PM CaptHindsight[m]: China is looking at how it effects them want Taiwan obviously but also how they can manage still being the worlds source of manufacturing
04:15 PM roycroft: it's only gained because they reopened the moscow stock exchange
04:15 PM roycroft: and there's a little bubble happening
04:15 PM roycroft: but that won't last long
04:16 PM enleth: it did, however, briefly get so low that "a pound of rubles is worth a dollar" was a true statement, not just a punny joke
04:16 PM roycroft: yes
04:16 PM XXCoder: robok money is worth more than rubles now
04:16 PM roycroft: dogecoin is going back up!
04:17 PM roycroft: it up to US$0.13 now
04:17 PM enleth: (to be exact, 1 ruble coins weigh 3g or 3.25g depending on year of manufacture, so it takes between 139 and 151 for 453g of them to be worth a dollar)
04:18 PM roycroft: wow
04:19 PM roycroft: the january 6 commission are considering subpoenaing ginni thomas
04:19 PM roycroft: that is huge
04:20 PM XXCoder: roblok money 1 robuk = 0.035 usd, rubles 1 ruble = 0.013 usd
04:20 PM * roycroft needs to head back to the shop, but expects this summer to not be the least bit boring
07:15 PM roycroft: i got the first flange collar for the dust collector made, and it fits brilliantly
07:21 PM XXCoder: yay
07:22 PM Tom_L: no pics no happened
07:29 PM roycroft: i'll post a picture when the project is complete
07:29 PM roycroft: i tend to focus on actually performing work, not photographing it
07:30 PM roycroft: were i making my living on youtube i'd shift my focus to the photography
07:30 PM XXCoder: ugh each time I see hearing person use fingers to say 3, I want to bop on head and say "dude thats awkward way and wrong way!"
07:37 PM miss0r: Tom_L: I now have a working coilgun! :D
07:38 PM miss0r: Tom_L: This is what the "brains" ended up looking like: https://imgur.com/a/HghAnxT
07:40 PM miss0r: I still have a few quite minor software bugs I need to sort out. But knowing that I only spend two hours writing almost 300 lines of code complete with comments and everything, I am very pleased with the outcome
07:40 PM XXCoder: nice
07:42 PM miss0r: Thanks. I just did a test shot. 6x24mm hardened pin as a projectile. It burried it self 22mm into light concrete (I don't know the proper name, calling it concrete even seems wrong, as it is quite porous). I could even feel the recoil. And I haven't even started the fine adjustment of the triggering sequence times of the seprate coils
07:43 PM * miss0r is very pleased with himself :D
07:48 PM Tom_L: and you lived to tell about it
07:50 PM XXCoder: theres nothing like g28 x0 y0 z0
07:50 PM Tom_L: sure there is
07:51 PM Tom_L: G53
07:52 PM XXCoder: lol
07:52 PM XXCoder: its nothing like home joke. for IT theres "nothing like"
07:53 PM Tom_L: miss0r, that looks a little scaled down from what you'd been working on
07:53 PM miss0r: Tom_L: What makes you say that?
07:54 PM Tom_L: the other just seemed bigger
07:54 PM Tom_L: maybe it was just the pics
07:55 PM miss0r: well. this latest picture just shows the brains/charging circuit..
07:55 PM miss0r: Theres still 10 coils, each with a 450volt capacitor. :D
07:56 PM Tom_L: ok
07:57 PM miss0r: anyway. Its almost two in the morning. I'll hit the hay. See you around
07:57 PM Tom_L: at least you quit popping mosfets
07:58 PM miss0r: Theres still time :]
07:58 PM miss0r: Its never too late to pop a mosfet...
07:58 PM * miss0r is out
07:58 PM Tom_L: figured out what the real projectile was supposed to be
10:02 PM mrec_: can anyone part off 30mm steel with a 350W or 750W motor without workarounds?
10:03 PM mrec_: maybe I just need to change the belts of the mini lathe
10:03 PM Tom_L: might be pushing it on the OD
10:04 PM Tom_L: would help if you're running constant surface speed
10:22 PM mrec_: the motor speed varies a lot if there's a little bit load on it, and finally the pulley is free running, just rubbing the belt
10:22 PM mrec_: it's a single slot V-belt and very small, even the sewing machine of my grandmother has more slots
10:23 PM mrec_: I'm thinking about replacing the belts and the motor
10:23 PM mrec_: I can work with the current setup but I'd like to have more power
10:23 PM mrec_: I just wonder that those 750w don't feel like 750w at all
10:24 PM mrec_: more like 100w
10:28 PM Tom_L: i had similar belts on my sherline and replaced them with timing belts
10:28 PM Tom_L: no more problems
10:29 PM Tom_L: but i did switch to a 1.2kw motor too
10:29 PM mrec_: nice
10:29 PM mrec_: overall I'm very happy with the setup but of course things can be improved
10:30 PM mrec_: at least it lets me understand what's important and where my machine is too weak
10:30 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Spindle/Motor_mounted1.jpg
10:30 PM mrec_: I realized even skilled machinists do not really know which parts are important because they take everything for granted since they work with much better machines
10:31 PM mrec_: nice!
10:31 PM mrec_: I think about a treadmill motor, I asked my wife to have a look where we can get one from
10:32 PM mrec_: I know some places which have worn out treadmills they should dispose them sooner or later