#linuxcnc Logs

Sep 23 2020

#linuxcnc Calendar

12:10 AM BitEvil is now known as SpeedEvil
01:17 AM Deejay: moin
02:12 AM veegee: Something similar to this: https://www.youtube.com/watch?v=0IjrU5bUbUc
02:12 AM veegee: But hopefully less than $5,000
02:12 AM veegee: Maybe bent axis would be better
02:27 AM CaptHindsight: fleaay is full of em
05:15 AM JT-Cave: morning
06:16 AM Tom_L: morning
06:18 AM XXCoder: mornings
06:18 AM XXCoder: looks like rain this entire week
06:19 AM XXCoder: good on cleaning up dregs of bad air
06:34 AM jymmmm: morning
06:39 AM XXCoder: uo
06:39 AM XXCoder: yo
06:45 AM jymmmm: is that like a defective yo-yo?
06:45 AM XXCoder: yep
06:45 AM XXCoder: it doesnt return
06:45 AM beachbumpete1: Morning
06:46 AM jymmmm: Ah, I thought it might be that it only spins clockwise or something
06:48 AM XXCoder: it goes both ways at once
06:48 AM XXCoder: one side spinning wrong way
06:53 AM jymmmm: Ah, that makes more sense.
06:54 AM jymmmm: Does anyone know of/about The LARGE sprinter vans and ones like them? I saw a "clone" once, but can't recall the details other that it was a 6cyl diesel.
07:04 AM Tom_L: party on wheels?
07:15 AM Centurion-Dan2 is now known as Centurion_Dan
07:19 AM jymmmm: Tom_L: No, more like vanlife
08:01 AM beachbumpete1: I'm trying to build a 4x4 E350 Econolone 15 passenger long body thats sort of vanlife hehe
09:14 AM jymmmm: beachbumpete1: shower/toilet/kitchen?
09:50 AM flyback: how the hell do you guys drill perfectely center holes
09:50 AM flyback: I mean the bit itself has length and width
09:50 AM flyback: the pencil dot you make to mark where to drill has length and wide
09:50 AM flyback: how do you conpensate all this shit so you avoid being off center
09:50 AM flyback: this is one of those problems that has perplexed me for 30 yrs
09:52 AM flyback: even the tiny tiny omg it's smaller than hitler's dick needle point on the end of a drill bit or a needle for that matter
09:53 AM flyback: is not a perfect infintely small point
09:54 AM flyback: how do you avoid being lopsided
09:54 AM flyback: this has been one of the things that prevented me from trying to make a small wind turbine generator
09:54 AM flyback: was figuring out how to get a perfectely centered hole, etc
09:55 AM flyback: how do you mate 2 differnt size shafts together
10:16 AM rs[m]: flyback: there is no perfect
10:17 AM rs[m]: rs: if you want "perfectly centered" holes, use a DRO, edgefinder, center drill
10:18 AM rs[m]: talking to myself...
10:19 AM rs[m]: flyback: or use CNC
10:21 AM jymmmm: rs[m]: It's okey to talk to yourself, it's when you start answering yourself is when you have a problem ;)
10:40 AM rs[m]: jymmmm: don't see a problem with answering yourself as long as you don't start an argument...
12:01 PM jymmmm: rs[m]: and if you do?
12:10 PM Tom_L: just have a good rebuttle ready
12:11 PM jymmmm: Tom_L: baeball bat with skull piercing electrified spikes?
12:12 PM Tom_L: fiction becomes fact if you say it enough or loud enough
12:12 PM jymmmm: Oh, it's a real thing
12:12 PM jymmmm: $150K https://www.youtube.com/watch?v=1LFEHUMbL_Q
12:13 PM Tom_L: order up 2
12:13 PM Tom_L: find an old microbus. they lived out of them in the 60's just fine
12:13 PM jymmmm: Tom_L: https://i.etsystatic.com/20434815/r/il/d8a1a6/2444763549/il_570xN.2444763549_k3eo.jpg
12:14 PM jymmmm: Tom_L: $122/ea
12:14 PM jymmmm: Tom_L: I'd like soemthing that gets better than 4 gallons per mile
12:14 PM Tom_L: that one looked used. i'm not interested
12:15 PM jymmmm: Tom_L: field tested quality control
12:17 PM jymmmm: Tom_L: and I'm not sure if "short buses" are still aournd
12:21 PM jymmmm: Just saw this... 2017 Mercedes-Benz Sprinter Cargo 2500 170 V6 High Roof Worker RWD $39,774 60K miles
12:22 PM roycroft: i have an old microbus for sale
12:22 PM roycroft: it's in need of restoration, but it's not rusted out like most of them are
12:23 PM jymmmm: define restoration?
12:26 PM Tom_L: get an old cheby van lined with shag carpet
12:28 PM Tom_L: probably more than half the baby boomers were conceived in one or the other
12:30 PM jymmmm: I'mway too tall for that, and I want a shower/toilet
12:31 PM Tom_L: i used to have a coleman popup with both
12:31 PM jymmmm: Tom_L: https://www.youtube.com/watch?v=wIK5kVJVrS8 A bit elaborate, but nice
12:32 PM jymmmm: Tom_L: popup... trailer tent? camper?
12:32 PM Tom_L: camper
12:33 PM roycroft: jymmmm: a previous owner had stripped much of it - the windows need to be reinstalled and most of the hardware reinstalled
12:33 PM jymmmm: they have slide out campers now, look fantastic, , you would never know that it was a camper. Only problem... $100K
12:33 PM roycroft: someone had hacked out an opening in the dash for an aftermarket radio
12:33 PM roycroft: i have another dashboard for it
12:33 PM roycroft: it has an engine - i think it's a 1500, but i've never even turned it over
12:33 PM jymmmm: roycroft: engine? trans? rear end? suspention?
12:33 PM Tom_L: rings are probably stuck
12:34 PM roycroft: it has all of that
12:34 PM jymmmm: in working order?
12:34 PM roycroft: i don't know
12:34 PM roycroft: i've never driven it
12:34 PM roycroft: nor tried to turn the engine over
12:34 PM roycroft: i bought it to convert it to an ev, but never got around to it
12:34 PM jymmmm: towed in?
12:34 PM roycroft: you probably aren't seriously intersted in it though
12:34 PM roycroft: yes
12:35 PM roycroft: because you would not be willing to pay much for it
12:35 PM jymmmm: what are you asking?
12:35 PM roycroft: i can get $8k for it easily if i sell it to someone back east where they use salt on the roads
12:35 PM roycroft: i can get probably $2k locally
12:35 PM roycroft: it's a '65 - 6volt split window bus
12:35 PM jymmmm: pics?
12:35 PM roycroft: my plan is to put it on thesamba.com
12:36 PM roycroft: and sell it to someone back east
12:36 PM roycroft: i haven't taken pics of it in ages, and i don't know where those are ofhand
12:36 PM roycroft: but when i get a chance i'll find them and post a link
12:36 PM jymmmm: k
12:36 PM roycroft: i really would like to sell it
12:36 PM roycroft: it's just one of those projects that keeps getting requeued
12:36 PM jymmmm: could it be easily coverted to 12V ?
12:37 PM roycroft: sure
12:37 PM roycroft: i've converted 6v buses to 12v several times
12:37 PM roycroft: and actually it's kind of nice doing it
12:37 PM jymmmm: who makes the chassis?
12:37 PM roycroft: because i don't rewind the starter motor, so it spins twice as fast
12:37 PM roycroft: volkswagen
12:38 PM roycroft: they don't outsource their vehicles, except for the camper refits
12:38 PM jymmmm: OH, a vw bus... probably way too small for me.
12:38 PM roycroft: well yeah
12:39 PM roycroft: the discussion was about microbuses
12:39 PM roycroft: that means volkswagen
12:39 PM jymmmm: well someoene else said that, I'm looking at sprinter type vans
12:39 PM jymmmm: so maybe micro rv's
12:40 PM roycroft: it's the same model and year as the one arlo guthrie had
12:40 PM roycroft: the one he put all the garbage in
12:40 PM roycroft: it's even the same color red
12:41 PM jymmmm: Heh, besides toilet/shower, I'm trying to figure out if I can put a washer and dryer in one
12:42 PM roycroft: i'd get a big old school bus then
12:42 PM jymmmm: Maybe on the rear bumper hitch
12:42 PM jymmmm: mileage would be too much, and can't parkin in a normal spot.
12:43 PM roycroft: hmm, so one charge of wanton endangerment in the brionna taylor case
12:43 PM roycroft: that's not going to go over well
12:44 PM roycroft: but it may be the correct charge
12:44 PM roycroft: it's a difficult case
12:44 PM roycroft: and a good example of why no-knock warrants need to stop, without exception
12:46 PM jymmmm: Ok, found a couple... https://www.lowes.com/pd/LG-4-2-cu-ft-White-Ventless-Combination-Washer-and-Dryer-with-Steam-Cycle/50175587
12:48 PM jymmmm: another.... https://www.amazon.com/Splendide-WD2100XC-White-Vented-Washer/dp/B002PZA2UG
01:02 PM jymmmm: http://tubitv.com/ FREE movies like crackle
01:14 PM CaptHindsight: Latency for Rpi4 using 50,000 base thread is <40K and 200K servo thread is <50,000 with software rendering and no videos being played after 12 hours
01:15 PM CaptHindsight: Playing videos over FF or Chrome and latency for 50,000 base and 200K servo is <50,000 for both with software rendering. Video playback is a little choppy, also have 4 glxgears running at the same time.
01:16 PM CaptHindsight: isolcpus=1,2,3, idle=poll has lower latency than isolcpus=3, idle=poll
01:16 PM CaptHindsight: Core clock speed on Rpi4 max is set at 1500 set by arm_freq=1500 in the config.txt
01:16 PM CaptHindsight: force_turbo=1 goes into the config.txt file, not the cmdline.txt
02:18 PM roycroft: aah, i just put finish on the shelf at the lower end of my bench
02:18 PM roycroft: i've been looking forward to that, because half the shelf slats are cherry, and the color really "pops" with finish on them
02:56 PM CaptHindsight: hanging the Rpi4 back up
03:00 PM CaptHindsight: I'd stay with the OrangePi's for software stepping
03:01 PM beachbumpete1: Jymmm no toilet or shower just a nice queen sized bed and some storage solutions. It will have a full length roof rack and probably a rooftop tent. It is mostly for just traveling and having someplace to stay when we get there etc.
03:01 PM CaptHindsight: has the Rpi headers so will also work with the mesa FPGA IO card
03:01 PM CaptHindsight: and also has integrated Ethernet for connection to mesa FPGA
03:01 PM beachbumpete1: Might consider looking at schoolie build if you intend to do van life. WAY more room and MUCH cheaper while still being reliable and reasonable on fuel.
03:05 PM CaptHindsight: the OrangePi's aren't offered with as much DDR3 as the Rpi's, so less backplot
03:05 PM * roycroft mentioned that some time ago
03:06 PM roycroft: around here a 40 foot diesel pusher schoolie in good working order can be had for $3-5k
03:09 PM Rab: I had a bus, I can't vouch for reliability nor fuel economy. :P
03:10 PM CaptHindsight: roycroft: when do they retire the school buses there? When kids fall through the floors? When they are run into the ground? When they fail a safety inspection? After 200K miles even when safe and sound?
03:11 PM Rab: Some of my bus homies would cross the country on free veggie oil. But I think that's dried up.
03:11 PM roycroft: i don't know what the criteria are, but they're usually in pretty good shape when they're retired
03:11 PM roycroft: at 200k miles the engine is barely broken in
03:12 PM roycroft: i should imagine they run them longer than that
03:12 PM roycroft: since we don't use salt on our roads here, vehicles don't rot like they do back east
03:15 PM CaptHindsight: How about to convert to a food truck? Salt will be in it for years.
03:40 PM Deejay: gn8
04:36 PM * JT-Shop wonders if there is a magic thickness and or length for a wood rope tensioner???
04:37 PM roycroft: for a bow saw?
04:39 PM JT-Shop: to have an adjustable set of ropes with hooks to paint from outside
04:39 PM roycroft: oh
04:39 PM JT-Shop: use like a tent rope tensioner
04:39 PM roycroft: yeah, i know what you're talking about now
04:39 PM roycroft: and i don't know of any magic dimensions for it
04:41 PM JT-Shop: I'll just have to make a couple and see how they work
04:41 PM JT-Shop: gotta make the hooks first
04:47 PM veegee: low pressure hydraulic line on the forklift bursted
04:47 PM veegee: leaked like 40L of hydraulic everywhere
04:47 PM veegee: Well burst is the wrong term. Hose slipped off the hose barb. A large diameter hose going into the oil filter that is
04:48 PM veegee: So very high flow. It did a great job of pumping all the old hydraulic fluid onto the pavement. And there's lots of wildlife
04:48 PM veegee: I used loads of trisodium phosphate degreaser. Hopefully it won't hurt the kitty cats
04:49 PM veegee: and it forced me to change the hydraulic oil. It runs a lot better now :)
04:51 PM veegee: Anyone have any other ideas for cleaning up an oil spill?
04:51 PM Tom_L: exon valdes does
04:52 PM veegee: Yeah but the greedy fucks don't care
04:53 PM veegee: I already got most of it but I still want to clean up everything. The kitty cats are so cute. I don't want the oil getting into their bodies when they clean themselves
04:53 PM Tom_L: absorbent diapers
04:54 PM Tom_L: kitty litter
04:54 PM veegee: I spilled some kerosene on it first to lower the viscosity
04:54 PM veegee: OH that reminds me, princess auto sells absorbent, I'll try that
04:55 PM veegee: I really hope this works: https://www.princessauto.com/en/detail/can-dry-supreme-all-purpose-absorbent/A-p8618936e
04:57 PM veegee: Nice, it's diatomaceous earth. Has the bonus ability of brutally killing disgusting exoskeleton creatures
04:59 PM roycroft: it's illegal here, and in many places, to wash tsp into storm sewers - it's pretty toxic stuff
04:59 PM roycroft: it cauese algae blooms, which deplete oxygen and kills fish
05:00 PM roycroft: it's not illegal to sell or use here at this point, but it must be disposed of in the sanitary sewer system, not allowed to soak into the ground or enter the storm sewer system
05:02 PM veegee: Did not know that
05:02 PM veegee: Also got it into my eye. Twice
05:02 PM veegee: Well it didn't get into any sewer, it's still on the pavement. I'll have to get it with the diatomaceous earth absorbent
05:03 PM roycroft: algae love the phosphorous
05:03 PM roycroft: it's also not good for your eyes
05:03 PM roycroft: but i'm sure i don't have to tell you that
05:04 PM roycroft: the searing pain your eyes already did
05:04 PM veegee: It was a 1:10 solution and I flushed it immediately. Mild burning, less than the pain of getting body soap in the eye
05:04 PM roycroft: there are a number of environmentally friendly tsp substitutes
05:05 PM roycroft: borax is probably the cheapest and most commonly available
05:05 PM veegee: Ok luckily it's not immediately dangerous to wildlife. Just have to make sure it doesn't get into a waterway
05:05 PM roycroft: right
05:07 PM roycroft: it's the same issue as using phosphate-based dishwasher detergents, which are also being phased out in many localities
05:07 PM roycroft: but they're generally not as harmful, as wastewater treatment plants can deal with the phosphates
05:07 PM roycroft: it's just expensive to do so
05:08 PM veegee: diatomaceous earth should to the trick. It'll gel up nicely and I can suck it up with the shop vac
05:09 PM JT-Shop: hmm the two 1/4" wire hooks came out reasonably similar
05:10 PM roycroft: cat litter is probably the cheapest and easiest way to soak up the majority of the spill
05:10 PM roycroft: that's what most people use
05:11 PM roycroft: auto repair shops and the like usually have several bags of it at the ready
05:12 PM roycroft: as do towing companies
05:12 PM roycroft: basically any company that deals with fluids that might leak
05:13 PM * JT-Shop wished the DuoMite had a bit more clamping force for bigger wire
05:23 PM Rab: veegee, I've dealt with large-scale hydraulic oil spills before, and the cheapest and most effective stuff is kitty litter.
05:24 PM Rab: Note that you still have to dispose of the soaked litter responsibly.
05:24 PM veegee: Ok cat litter it is. Thanks guys
05:25 PM veegee: And yes, going to suck it up with the shop vac and dispose of it via hazardous waste disposal service
05:26 PM veegee: And then regular water and detergent with pressure washer for any residue
05:27 PM Rab: Good enough. Once the bulk is up, sweeping more litter over the stain and scrubbing it against the pavement with your shoes will work wonders.
05:28 PM Rab: Then a sweep up, and there will be very little to wash off.
05:32 PM veegee: On a semi related note, I wonder if taking sand from a public beach is considered "theft"
05:32 PM Tom_L: yes
05:33 PM veegee: I'm going to try it with a small bucket and see what the officer says lol
05:46 PM roycroft: if you were on certain beaches in france you would be arrested and imprisoned for doing so
05:47 PM roycroft: but in most places it's probably just a fine
06:08 PM -!- #linuxcnc mode set to +v by ChanServ
07:32 PM Tom_L: ok, estop circuit ironed out and working now
07:47 PM CaptHindsight: %)