#robotics Logs
Dec 09 2017
#robotics Calendar
12:13 AM rue_mohr: sweeet
12:16 AM rue_mohr: cnc the holes?
12:16 AM Tom_Shop: i cnc'd the hole locations then used the drillpress for part of it
12:16 AM rue_mohr: for the countersinking?
12:17 AM rue_mohr: ah
12:17 AM rue_mohr: you did it in the sherline?
12:17 AM Tom_L: no
12:17 AM Tom_L: on the drillpress
12:17 AM Tom_L: i spotted the hole locations on the sherline
12:17 AM rue_mohr: using max travel?
12:18 AM rue_mohr: ah
12:18 AM Tom_L: on the sherline yes
12:18 AM Tom_L: then i had to figure out which side the counterbore went on for Y
12:20 AM Tom_L: the other day i made some tap guides for M5 & M6 taps so they go in straight
12:20 AM Tom_L: that'll be mostly for the steel parts
12:23 AM Tom_L: little each day, maybe it'll be done in 10 yrs
12:25 AM Tom_L: it'll be nice to slap a piece on the mill and cut it and not have to worry how to hold it so it'll fit
12:28 AM Tom_L: i should add some hard stops to the rails so if something happens they won't slide off the ends and all the balls fall out
12:43 AM rue_bed: I think it'll be done in a few months at this rate
08:09 AM anonnumberanon: Passed out!
08:09 AM anonnumberanon: Finally I sleep well.
09:02 AM anonnumberanon: https://youtu.be/OEXVGwEfq_E
10:06 AM anonnumberanon: Oh wait omg i just realized i just picked up an old lenovo workstation from the dump
10:07 AM anonnumberanon: They pulled out the cpy, ram and power supply from it
10:07 AM anonnumberanon: I could use that
10:07 AM anonnumberanon: Either the mobo has a parallel port or i can add a pci adapter
11:01 AM rue_bed: you can follow some of those motor leads on the weekend
11:01 AM rue_bed: that fax machine is a good one
11:01 AM rue_bed: the printer with the scanner is also great
11:01 AM rue_bed: those will total 4 steppers
11:04 AM rue_bed: as for spending money, get an arduino uno and 5x stepper motor drivers, the A4988 ones, cost should be not more than $10
11:04 AM rue_bed: anonnumberanon, ^^
11:04 AM rue_bed: not a genuine arduino, there is no point, get a cheap knockoff
11:05 AM rue_bed: anonnumberanon, do you have a solderless breadboard?
11:05 AM rue_bed: 830 points?
11:06 AM rue_bed: if your really interested in this stuff, we need to get you into a different gear
11:08 AM rue_bed: re 2-legger, their using a disguise of the dance alg that boston uses
11:08 AM rue_bed: hate that
11:09 AM Tom_L: feelin better?
11:09 AM rue_bed: no, its a head cold tho
11:09 AM rue_bed: thats clear now
11:15 AM rue_bed: they are using all the big money stuff for that walker, you can tell the way they just throw aluminum billetts into the cnc machine
11:15 AM rue_bed: it might work, they dont have it right yet
11:18 AM rue_bed: nice hot shower and food time
11:57 AM rue_mohr: anonnumberanon, do you have a hot glue gun?
12:02 PM rue_mohr: its too quiet in here
12:03 PM rue_mohr: oh, right, my ears are plugged up
12:03 PM anonnumberanon: I bought one yesterday and many glu sticks.
12:03 PM rue_mohr: so, you have been the owner of a gluegun for all of 24 hours now....
12:03 PM rue_mohr: oooh dear
12:04 PM rue_mohr: anonnumberanon, you following any of those craigslist links yet?
12:04 PM rue_mohr: for all I know their miles away, so, whatever
12:04 PM anonnumberanon: Rue if shower water in ear otient ear toards floor, raise opposite leg and jump energetically a few times
12:04 PM rue_mohr: thanks, I'll keep that in mind
12:05 PM rue_mohr: I ahve a cold
12:05 PM rue_mohr: so far its a head cold
12:05 PM Tom_L: better yet stand on your head and bounce up and down rapidly
12:05 PM anonnumberanon: I have cardboard
12:05 PM rue_mohr: wonderfull
12:05 PM rue_mohr: have any coathanger wire?
12:06 PM anonnumberanon: Lemee check
12:06 PM rue_mohr: this is anonnumberanons conversion into a maker
12:07 PM anonnumberanon: 7 wire coat hangers in my posession
12:07 PM anonnumberanon: A brand new box cutter and blades
12:07 PM rue_mohr: wow only 7?
12:07 PM rue_mohr: k
12:08 PM rue_mohr: have any pliers with cutters or otherwise good enough cutter to take on the coathangers?
12:08 PM anonnumberanon: God damn it
12:08 PM anonnumberanon: Oh yeah maybe in garage
12:08 PM rue_mohr: see, road was longer than you thought
12:09 PM durrf2: lol it might be less the 24 hours j/s
12:09 PM anonnumberanon: J/S ?
12:09 PM durrf2: just saying
12:09 PM durrf2: :P
12:09 PM rue_mohr: lets be optometric
12:09 PM durrf2: you can also use a hacksaw for that stuff
12:10 PM durrf2: makes cleaner cuts then cutters that are too weak
12:10 PM rue_mohr: not well on a coathanger
12:10 PM * anonnumberanon moves organic legs in general direction of garadge begrudgingly
12:11 PM durrf2: i use it for some rod thats slightly thicker then coathangers
12:11 PM rue_mohr: I wonder what happens in New Jersey if you stand outside and shout "I NEED PARTS FOR A BOMB, CAN ANYONE HELP ME?"
12:12 PM rue_mohr: I suppose everywhere has good and bad parts of town
12:13 PM rue_mohr: ok I need to think
12:13 PM anonnumberanon: Nothing ever happens here so they would think im a hollywood show on tv and carry on
12:13 PM rue_mohr: ah
12:13 PM anonnumberanon: Ok didnt have to go
12:13 PM anonnumberanon: Wait no
12:14 PM anonnumberanon: Dont wanna use those electronic wire grade cutting pliers
12:14 PM anonnumberanon: Garage here i com
12:15 PM rue_mohr: dosn't live in an appartment then, that might help
12:16 PM rue_mohr: I need to put away my aliexpress loot, the desk is getting burried
12:18 PM rue_mohr: anonnumberanon, amazing how those printers turn into twice their volume of junk and that dosn't include the good stuff you get out eh?
12:20 PM anonnumberanon: I just froze my toes going out in flip flops this better be worth
12:20 PM rue_mohr: you know you dont have any steppers yet, right?
12:20 PM * anonnumberanon goes to car where stashed huge box he saved from the snow this morning
12:20 PM rue_mohr: ?
12:21 PM anonnumberanon: Yeah for the 10th time i know i have no steppers.
12:21 PM rue_mohr: k, any of those craigslist links workable?
12:21 PM anonnumberanon: And i have links saved ill go Monday
12:22 PM anonnumberanon: I have to do a time vs money analysis on some of them, crossing into NY state costs $25
12:22 PM anonnumberanon: (Cost of a badass stepper)
12:22 PM rue_mohr: yea well dont do that
12:22 PM anonnumberanon: Ill do the school superintendant you sent
12:22 PM anonnumberanon: Will call him
12:22 PM rue_mohr: craigslist only gets as fine as North, Central, and South, I was dissapointed
12:27 PM rue_mohr: it might take you a long time to get set up, wanna order some stuff from china while you work the rest out?
12:27 PM rue_mohr: I can make you a kit
12:28 PM rue_mohr: do you have a solderless breadboard?
12:29 PM Tom_L: mine has bread on it
12:30 PM deshipu: I have a breadless solderboard
12:33 PM anonnumberanon: All available gear. Will i need more than 7 hangers?https://ibb.co/dY0JqG
12:33 PM rue_mohr: I think its about a 2 or 3 hanger project
12:34 PM rue_mohr: depending on what you do
12:34 PM rue_mohr: anonnumberanon, thats a start :)
12:34 PM anonnumberanon: A kit for what rue?
12:34 PM rue_mohr: keep a lid on the pop tho, even if its not tight it buys you time in the event of a tipover
12:34 PM rue_mohr: anonnumberanon, the electronics
12:35 PM rue_mohr: anonnumberanon, you dont ahve a solderles breadboard do ya?
12:35 PM rue_mohr: anonnumberanon, the seal on your door needs help
12:35 PM rue_mohr: I can see the snow
12:35 PM anonnumberanon: Not my house dgaf
12:35 PM rue_mohr: whatever
12:36 PM anonnumberanon: I already do the landlady's car for free
12:36 PM anonnumberanon: Not gonna do the house
12:36 PM anonnumberanon: Of course i have a breadboard you do remember what i made right?
12:37 PM rue_mohr: zoomed, enhanced image of under the door: https://d1w9csuen3k837.cloudfront.net/Pictures/480xany/4/5/4/134454_shutterstock_225171904-crop.jpg
12:37 PM rue_mohr: anonnumberanon, no, I cant think of anything you have made...
12:37 PM anonnumberanon: Lmao
12:37 PM anonnumberanon: Rue holy shit
12:37 PM anonnumberanon: Youtube channel valflyinf
12:38 PM anonnumberanon: Go browse it then we can resume
12:38 PM rue_mohr: your lucky I'm stuck in sick, or I wouldn't be so attentive
12:39 PM * anonnumberanon feels lucky
12:40 PM rue_mohr: ah, you have an uno!
12:40 PM rue_mohr: ?
12:40 PM anonnumberanon: Omfg m8
12:40 PM anonnumberanon: Lol
12:41 PM rue_mohr: good, our challanges are just on the mechanical end then
12:41 PM anonnumberanon: I have at least 3 remaing pdip atmega328
12:41 PM anonnumberanon: Yeah im newb at mechanical
12:41 PM anonnumberanon: Except for cars but thats big stuff
12:42 PM rue_mohr: so, with what you ahve now, you should be able to get a peice of cardboard to slide back and forth on/thru some wire rails
12:45 PM anonnumberanon: Maybe...
12:45 PM anonnumberanon: Not sure
12:45 PM rue_mohr: the cardboard has holes, convientntly run thu it
12:45 PM rue_mohr: which the wire fits thru
12:46 PM anonnumberanon: I can do that
12:47 PM anonnumberanon: How to keep the wire hard and taught?
12:47 PM rue_mohr: too pickey, just dont make it long enough to go far
12:47 PM rue_mohr: your just making something to demonstrate movement
12:49 PM anonnumberanon: Lets say we give it 200mm range of motion?
12:52 PM rue_mohr: even 100
12:52 PM rue_mohr: just a demo/test platform
12:53 PM anonnumberanon: Gimme 5 min
01:43 PM rue_mohr: .
01:43 PM rue_mohr: said almost an hour ago
01:44 PM rue_mohr: huh, there is no way to make a shopping list in aliexpress and transfer it to someone
01:45 PM rue_mohr: anyone awake?
01:46 PM rue_mohr: javascript:; the 'add to cart' is just javascript
02:16 PM anonnumberanon: Just pass it through? https://ibb.co/moRzVG
02:17 PM anonnumberanon: Sorry i was forced to have lunch...
02:17 PM anonnumberanon: Cant share aliexpree list? Thats berzerk..
02:25 PM anonnumberanon: https://ibb.co/m8wNjb
02:25 PM anonnumberanon: Ok what now?
02:38 PM rue_mohr: dosn't ahve to be too big, but if it slides back and forth some your making progress
02:38 PM rue_mohr: thats, say, 1 axis, you want to polly stack 2 acies for x,y
02:39 PM rue_mohr: you have to figure that out
02:39 PM rue_mohr: the goal isn't just to follow my lead
02:39 PM anonnumberanon: Yeah good sliding. The table is 20 by 20
02:39 PM rue_mohr: you have something that moves back and forth, run with it
02:39 PM anonnumberanon: Has 15 cm on each aide
02:40 PM rue_mohr: sure, name it x, y or z
02:40 PM rue_mohr: maybe make something to hold the rails next
02:40 PM anonnumberanon: I kinda like to just follow directions.
02:41 PM anonnumberanon: Lemme make the other axis hang on
02:41 PM rue_mohr: oh, dont just be a sheep
02:41 PM rue_mohr: be the lead lemming!
02:42 PM anonnumberanon: I have to think solutions out at work.
02:42 PM anonnumberanon: Thats like my life.
02:42 PM anonnumberanon: A little break is nice.
02:42 PM rue_mohr: uhu
02:42 PM rue_mohr: but you like puzzels?
02:42 PM anonnumberanon: Glue gets hard in 60 seconds?
02:42 PM rue_mohr: it should, depends how much youhave the heat cranked up
02:43 PM rue_mohr: if the room temp is about 100c, it's not going to set quick
02:45 PM rue_mohr: hmm, I keep drinking, but its not going anywhere....
03:00 PM anonnumberanon: Ok table done, slides in x and y direction
03:00 PM rue_mohr: k, are the rails supported?
03:01 PM rue_mohr: got an idea of how you can attach a motor?
03:01 PM rue_mohr: some kinda line or belt drive is prolly a good idea
03:01 PM rue_mohr: like the marlin printers use for xy
03:06 PM rue_mohr: back in my day, when i clicked on a link, the browser would go to that page, it wouldn't open an intermedite page that I'd have to click 'visit' on, and it wouldn't give me a page warning that I was being redirected to the page I wanted to go to
03:06 PM rue_mohr: it just went there
03:06 PM rue_mohr: why is the new generation so eager to have so many more clicks to do things?
03:08 PM rue_mohr: it would take 2 clicks to start a program, any program one to pull up the menu, from there as you moved the mouse, it would automatically expand the catagories, and then a click to say thats the program you wanted to run
03:08 PM rue_mohr: _2_
03:08 PM rue_mohr: and it wouldn't ask you if you wanted to run that program when you did it
03:08 PM rue_mohr: it would just do it
03:11 PM rue_mohr: today, the winning UI would be the one that required the most clicking
03:17 PM anonnumberanon: Yeah corporations are fucking everyone over left and right. Developers do NOT want to be told to do this.
03:18 PM anonnumberanon: Anyway will i need more hangers? 3 left. The dry cleaners who has em closes soon.
03:19 PM rue_mohr: and second hand stores have LOTS
03:19 PM rue_mohr: they throw them away in bails to not get overrun with them
03:19 PM rue_mohr: as most second hand stores are 99% clothing
03:20 PM anonnumberanon: Goodwill should be open.
03:21 PM anonnumberanon: Ok what u mean about the rail supports? Dont get that.
03:21 PM rue_mohr: those rails need to be held up by soemthing
03:21 PM rue_mohr: you know, to hold them
03:22 PM rue_mohr: so that it can slide bank and forth
03:23 PM anonnumberanon: Oh yeah here comes that dreaded time of making "the frame"
03:24 PM rue_mohr: figure out where in freespace you want it to be,a and make cardboard peices to make it stay there
03:24 PM rue_mohr: mistakes are cheap
03:24 PM anonnumberanon: Gonna have to get creative to make it strong.
03:25 PM anonnumberanon: Brb will get more hangers.
03:25 PM anonnumberanon: By the way cutting them with my cutting plies is a bi***.
03:26 PM anonnumberanon: Which i had ones with more leverage.
03:28 PM rue_mohr: dont amake it strong just make it hold
03:30 PM rue_mohr: nned sharper pliers
03:56 PM rue_mohr: waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaay toooo many boxes of "misc" are piling up around here
04:41 PM anonnumberanon: 30 hangers later
04:50 PM anonnumberanon: Ok frame
04:51 PM anonnumberanon: Oh and yeah i hate the mess after the printers breakdown
06:15 PM rue_mohr: I just think its amazing how the stuff is 3x the volume of the printer
06:15 PM rue_mohr: dont think I have any picture of the overflowing wheelbarrow loads of printer plastic I'v had
06:16 PM rue_mohr: I send the metal to the metal scrapper
06:16 PM rue_mohr: anonnumberanon, have you achived some sliding action?
06:17 PM Tom_L: what do you do with the printer plastic?
06:17 PM Tom_L: make new filament for your printer?
06:17 PM rue_mohr: recycler wont take it, has to go to the fill
06:18 PM rue_mohr: well they will take it if I pay them for garbage
06:18 PM anonnumberanon: Rue yeah yeah it slides in x y. Now making a frame around it
06:18 PM rue_mohr: I top up my garbage can every week till its under control, the occasional load to the fill
06:18 PM anonnumberanon: Almost done with that i think
06:19 PM rue_mohr: sh*** that 3db almost blew my ears ...
06:20 PM rue_mohr: hmm
06:20 PM rue_mohr: wonder why I need the boost for youtube videos, but not command line mp3 player
06:21 PM anonnumberanon: https://ibb.co/n70Mub
06:21 PM Tom_L: your mp3 player is closer to you
06:21 PM Tom_L: ?
06:21 PM Tom_L: seemed logical...
06:21 PM rue_mohr: hah
06:21 PM rue_mohr: that other board is all the drivers, the dirty dusty one
06:22 PM rue_mohr: hold on to a few of the gears that mesh
06:22 PM Tom_L: ok i think the next step is to go cut some more metal
06:23 PM rue_mohr: no steppers in the tv,
06:23 PM anonnumberanon: Lol
06:23 PM rue_mohr: only immediatly usefull parts are the IR reciever and the horizonal output transistor
06:23 PM rue_mohr: which can take like 20A, but only has a gain of like 5
06:24 PM anonnumberanon: No the tv works and is in use
06:25 PM rue_mohr: its gotta be close, look for the top scan lines to start seperating as the caps go bad in the vert amp
06:26 PM Tom_L: the tv is just a distraction for what you really should be doing
06:26 PM Tom_L: scrap it for parts...
06:37 PM rue_mohr: hah, one of the guys just dropped buy with one of the new tesla cars
06:37 PM rue_mohr: he's test driving it
06:38 PM rue_mohr: model X
06:39 PM rue_mohr: ? I think
06:39 PM rue_mohr: had gull wing doors
06:39 PM rue_mohr: yea model X
06:43 PM rue_mohr: anonnumberanon, the vert amp is the one with the C shaped heatsink and the cap that goes bad is the one in the middle of the C
06:48 PM Tom_L: i was behind one today on the road
06:48 PM rue_mohr: HOW EXCITING!
06:48 PM rue_mohr: :)
06:49 PM Tom_L: rather uneventful
06:49 PM rue_mohr: well it didn't burst into fire
06:49 PM Tom_L: i wasn't behind it long
06:49 PM rue_mohr: amazing how reliable were able to make things now
06:50 PM rue_mohr: I was just commenting to one of the guys today how I'v been REALLY happy with the (lack of) number of breakdowns that cnc I made has had so far
06:50 PM Tom_L: richard hammond was driving one of those electric cars and wrecked it, it was on fire for about a week
06:50 PM rue_mohr: only like 2 or 3
06:50 PM rue_mohr: fire departments have to know about class D fires
06:51 PM Tom_L: it kept going from cell to cell
06:52 PM rue_mohr: there was apparently an embarrasing even when, a second department was called in on a telsa fire that the first fire dept couldn't put out with all the water they were dumping on it, the backup guys put it out pretty quick with the proper stuff
07:40 PM Tom_L: ok, that went better than expected
07:40 PM Tom_L: first hunk of 4" column is cut
07:41 PM Tom_L: both ends
07:41 PM Tom_L: now to cut the standoff for Z
07:45 PM robertj: hey all, I'm located in the US - any good sources for rack and pinion stuff that's cheaper than cncrouterparts.com?
07:45 PM rue_mohr: heh
07:45 PM Tom_L: cheaperthancncrouterparts.com
07:45 PM rue_mohr: you can make a rack....
07:46 PM rue_mohr: AchiestDragon, ^^^
07:46 PM rue_mohr: your customers are calling
07:46 PM Tom_L: i think the hand cutter works better than the diamond saw blade for this
07:46 PM Tom_L: if you can hold it steady
07:46 PM robertj: rue_mohr, you mean cutting a rack from stock?
07:47 PM rue_mohr: drill holes use pins
07:47 PM Tom_L: also try sdp-si.com
07:47 PM rue_mohr: I think you can find the info under lock maker stuff
07:47 PM rue_mohr: or use chain
07:48 PM Tom_L: once the 4" length is cut then i gotta square them all up with the file
07:48 PM rue_mohr: Tom_L, you could really use a horiz bandsaw
07:48 PM Tom_L: i don't have one
07:48 PM Tom_L: they're not all that square either
07:48 PM rue_mohr: I was eyeing a peice of 6x6@1/2" square tube at a scrapper
07:48 PM Tom_L: i got it closer than a saw could
07:49 PM anonnumberanon: I kike having the tv on while i do do manual labor its less lonely
07:49 PM rue_mohr: anonnumberanon, how are you doing? is there xy sliding motion happening over there?
07:49 PM Tom_L: rue_mohr
07:49 PM rue_mohr: maybe a z too?
07:49 PM Tom_L: i'm glad you talked me into making this mill
07:50 PM * rue_mohr chokes on his tea
07:50 PM rue_mohr: hu?
07:50 PM Tom_L: it's all your fault
07:50 PM anonnumberanon: The way i put the frame it was very crooked so im regluing
07:50 PM anonnumberanon: Was having dinner
07:50 PM rue_mohr: hah, my completel inability to get mine finished?
07:50 PM Tom_L: yeah see you work well with competetion
07:50 PM rue_mohr: anonnumberanon, no points for neatness, just make it move
07:51 PM robertj: ack they are actually considerably more expensive
07:51 PM rue_mohr: beleive me, if I wasn't out of room I'd run with you
07:51 PM rue_mohr: robertj, chain
07:51 PM anonnumberanon: I dont like when things suck
07:51 PM Tom_L: that's just an excuse
07:51 PM Tom_L: i don't have room either
07:51 PM rue_mohr: no I really dont ahve room
07:51 PM Tom_L: every time i do something i gotta move something else to do it
07:52 PM rue_mohr: there are 3 cnc machines and 2 3d printers in the shop now
07:52 PM Tom_L: there's room in your bed
07:52 PM Tom_L: you're not there right now
07:52 PM anonnumberanon: Burn ;)
07:52 PM rue_mohr: I'm trying to clear the livingroom in the house for space for 3d printers, but even if I do I'm not sure it'll help fit more cnc machines
07:53 PM Tom_L: you don't need more
07:53 PM rue_mohr: it will allow me to have up to 8 more 3d printers tho
07:53 PM Tom_L: you need one GOOD one
07:53 PM rue_mohr: i LOVE being able to thow files into machines as fast as I can design them
07:53 PM rue_mohr: having the 3 printers for a while was REALLY COOL
07:54 PM Tom_L: how many do you have now?
07:54 PM rue_mohr: 2 is a challange to keep up with, 3 was possable
07:54 PM rue_mohr: I hve 2, one wasn't mine
07:54 PM rue_mohr: the coughing fits make my typing even worse
07:54 PM Tom_L: at the uni, on open house they have the hallway lined up with them
07:54 PM rue_mohr: yea
07:54 PM Tom_L: probably 10-20 of em
07:54 PM rue_mohr: $$$$$
07:54 PM Tom_L: all going at once
07:54 PM Tom_L: no
07:54 PM Tom_L: they're fairly cheap ones
07:54 PM Tom_L: but ready to go type
07:54 PM rue_mohr: only $1k?
07:55 PM Tom_L: maybe, i never looked
07:55 PM rue_mohr: mmm
07:55 PM Tom_L: don't get me wrong they do have a couple or three $$$$$$$$$$$$$ ones
07:55 PM * rue_mohr rocks back and forth in his chair and chants "I will not buy more 7 segment displays from china..."
07:55 PM Tom_L: and they just got the biggest one made
07:56 PM rue_mohr: yea, most people were calling $1k cheap for the printers, mine were under $200 ea
07:56 PM Tom_L: on open house day, they had that room covered under wraps
07:56 PM rue_mohr: matter a fact, that last one might have been under 100
07:56 PM Tom_L: i know
07:56 PM rue_mohr: poor zhanx
07:56 PM Tom_L: what's his problem?
07:57 PM rue_mohr: lack of progress on his printer
07:57 PM rue_mohr: I'm not helping fuel him
07:57 PM Tom_L: he has a cnc too
07:57 PM Tom_L: but not using it
07:57 PM rue_mohr: what?
07:57 PM Tom_L: cnc mill
07:57 PM rue_mohr: z has a cnc!?
07:57 PM Tom_L: afik yes
07:57 PM rue_mohr: no
07:57 PM Tom_L: bak, gotta go pick somebody up
07:57 PM rue_mohr: dont throw out your back
07:58 PM Tom_L: then go grinding steel again
08:09 PM robertj: any thoughts on the openbuilds mini mill? seems like it would be helpful for bootstrapping a larger machine and the price is right
08:11 PM SpeedEvil: rue_mohr: https://www.ebay.com/itm/22MM-AC60-500V-LED-Voltmeter-Voltage-Meter-Indicator-Pilot-Light-New-DIY-Best/371993263042
08:20 PM rue_mohr: I just build them from scratch
08:21 PM rue_mohr: https://www.aliexpress.com/item/22MM-Digital-LED-Display-Gauge-Volt-Voltmeter-Voltage-Meter-Indicator-Pilot-Light-T90-AC-60V-500V/32840908973.html
08:21 PM rue_mohr: dear god that IS cheap
08:22 PM rue_mohr: everyone is asking $1.51 so its prolly new, trying to build a market before raising the price
08:23 PM rue_mohr: I wonder if I can hack it to be a 3 wire
08:23 PM rue_mohr: (power and signal)
08:33 PM SpeedEvil: rue_mohr: bigclive tore one apart
08:34 PM SpeedEvil: rue_mohr: it's basically just resistor dropper + capacitive dropper for PSU
08:34 PM rue_mohr: yea
08:34 PM rue_mohr: they sometimes have a jumper and rebuildable divider for the input range
08:34 PM rue_mohr: so you can unjump it from the AC and input whatever votlage you want
08:35 PM anonnumberanon: https://ibb.co/hoq4VG
08:35 PM SpeedEvil: that one in 12V would be nice for something I have
08:35 PM rue_mohr: https://www.aliexpress.com/item/Mini-Red-Blue-Green-LED-DC-0-100V-Voltmeter-Gauge-Voltage-Volt-Panel-Meter-CLH-8/32824290893.html
08:35 PM anonnumberanon: Made a rookie mistake
08:35 PM SpeedEvil: neat
08:35 PM rue_mohr: I did it with a few of that type because the 2 wire ones were cheaper
08:38 PM anonnumberanon: robertj post the link for us on our phones
08:42 PM rue_mohr: me or him?
08:43 PM anonnumberanon: Him
08:43 PM anonnumberanon: That cnc he be talkan about
08:45 PM robertj: anonnumberanon, sure one second
08:45 PM robertj: http://openbuildspartstore.com/openbuilds-minimill/
08:48 PM rue_mohr: mian pic looks like a rendering, bad sign
08:48 PM robertj: there are youtube videos of it
08:49 PM rue_mohr: hah, that comes SO incompletel its a joke
08:49 PM rue_mohr: even if you add motors and the power supply, its still missing drivers and a controller
08:50 PM rue_mohr: the bosch router is prolly $230 alone
08:50 PM robertj: rue_mohr, its $90 on amazon
08:51 PM rue_mohr: bosch? wow
08:51 PM rue_mohr: so, all in all $1000?
08:51 PM robertj: the drivers and controller i don't mind alacart
08:51 PM rue_mohr: hmm what did my last one cost me...
08:51 PM rue_mohr: hmm, well there's an uno, that was $1.50
08:52 PM rue_mohr: the curtin rod was like $20, was NOT impressed with it either
08:52 PM rue_mohr: uh
08:52 PM rue_mohr: 3 tiny13's at 50c ea, so thats another $1.50
08:53 PM rue_mohr: and 3 74ls164, thats another 9c
08:53 PM rue_mohr: lets day 5 welding rods, ... thats 50c
08:54 PM rue_mohr: hmm, yea...
08:55 PM rue_mohr: rounding up, $24
08:55 PM rue_mohr: I mean, yea I have tones of parts from stripped printers, so unfair, but.. yea
08:56 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/cnc4/p1090485.jpg
08:56 PM rue_mohr: ah, and maybe $10 in 3d printed plastic
08:56 PM robertj: no 3d printer btw
08:56 PM rue_mohr: oh yea, there is a pipe fitting there I paid about $1.50 for
08:57 PM rue_mohr: well start with a 3d printer
08:57 PM rue_mohr: they are faster turnaround
08:57 PM rue_mohr: apples and oranges, yea, but
08:57 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/cnc4/p1080818.jpg
08:58 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/cnc4/slide.htm build log
08:58 PM Tom_L: ok where did i leave off...
08:58 PM robertj: so i've built a model train rheostat on the raspberry pi + assorted electronics before I think I can handle the servos if iH ad to but i'm not sure it's a good idea
08:58 PM robertj: i'm thinking it may be good to have a tcp-controlled relay box or osmething
08:59 PM robertj: all that tech and your photos are taken with a potato
08:59 PM rue_mohr: anonnumberanon, you working in secret or we get to see how your doing?
08:59 PM rue_mohr: robertj, no, I intentionally scale them down
08:59 PM rue_mohr: they are taken at 3M (on a 10M camera)
09:00 PM rue_mohr: anonnumberanon, if your playing that slideshow, note how I sorta employ parallel threads when building someting
09:02 PM rue_mohr: I was going to use the synchrobelt on the spindle, but the O ring works so well I'v never bothered to change it
09:02 PM robertj: nice work, way beyond my abilities though
09:02 PM rue_mohr: you should see th first one I made
09:02 PM rue_mohr: it was before the dawn of digital cameras
09:03 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/cnc/p1030107.jpg
09:03 PM rue_mohr: but I can show you what I upgraded to
09:03 PM rue_mohr: the parallel leadscrews didn't really work out, currently one drive nut is broken loose from the carrige
09:04 PM robertj: so acme drives max out practically ~ 48" right...can you just drive it from both end and go up to 8ft ok?
09:05 PM rue_mohr: robertj, it gets dangerous to have more than about 24" of leadscrew floppying around all over the place
09:05 PM rue_mohr: heh floppying
09:05 PM robertj: rue_mohr, so rack and pinion is it?
09:05 PM rue_mohr: chain
09:05 PM rue_mohr: bolt the chain to the frame, drive the sprocket
09:06 PM rue_mohr: _________________________O______________________
09:06 PM robertj: hmm
09:06 PM robertj: chain on one side only?
09:06 PM rue_mohr: you can S around it
09:06 PM rue_mohr: ___n___
09:06 PM rue_mohr: ____ono_____
09:07 PM robertj: i'm confused by this notation ;P
09:07 PM rue_mohr: you have two rollers (o) holding the chain down on either side of the sprocket that drive it back and forth (n)
09:07 PM rue_mohr: chain lays flat on the race ____
09:08 PM rue_mohr: sot eh chain never moves
09:10 PM rue_mohr: but I dont see the difference between a rack and an upside down timing chain
09:10 PM rue_mohr: there might be one, cant picture it
09:13 PM anonnumberanon: Okay sliding is fixed.
09:23 PM anonnumberanon: This is at max x y
09:24 PM anonnumberanon: https://ibb.co/h9W6cw
09:25 PM anonnumberanon: And this is at min x y. The thing is really fun to toy with funnily enough.
09:25 PM anonnumberanon: https://ibb.co/gZenjb
09:27 PM anonnumberanon: Notice the patrician-tier double axis and everything.
09:27 PM anonnumberanon: Made in America baby!
09:28 PM rue_mohr: interesting design
09:28 PM rue_mohr: I imagined you would use one of the existing cnc liek designs
09:28 PM rue_mohr: with stacked linear axies
09:30 PM rue_mohr: so, can you attach, lets say belts, (that can be pulled with a motor ) to move it in xy
09:30 PM anonnumberanon: Now gotta make gantry. Not looking forward to it.
09:49 PM anonnumberanon: All i did so far is bearing rods
09:49 PM anonnumberanon: For actuationg i would use a ball screw
09:50 PM rue_mohr: look at making it as you would the mill
09:50 PM rue_mohr: but you can do this as belt drives as well
09:54 PM AchiestDragon: arrr thee wants a rack then ,, this sort https://c1.staticflickr.com/4/3666/9584856993_09b19c5397_b.jpg ??
10:01 PM AchiestDragon: ball screws are prob better , and less painfull to use
10:02 PM anonnumberanon: Yeah. But expensive is their only downside.
10:02 PM anonnumberanon: Most expensive component i believe.
10:03 PM anonnumberanon: Oh wait no the router is heh
10:05 PM anonnumberanon: I think with my cardboard desin lead/ball screws would work.
10:06 PM AchiestDragon: racks , especialy long ones can be rather expencive and also a real pain to allign , not only that they clog quite easy as there subject to getting crap cought up in them , and in most cases unless its for say some mega big sliding road bridge then belts are just as good and cheaper
10:08 PM anonnumberanon: Post such deaign pls
10:09 PM AchiestDragon: a ball screw has the advantage that it usualy stays in the position its driven to and wont move or slide up and down without turning the driven screw
10:09 PM rue_mohr: belt, I forgot about belt
10:09 PM rue_mohr: but chain is self clearing
10:09 PM anonnumberanon: Soryy robertj i didnt see ur open cnc thing mind reposting it?
10:11 PM robertj: anonnumberanon, http://openbuildspartstore.com/openbuilds-minimill/
10:12 PM AchiestDragon: where belts or racks both need to have a stronger drive , if your moving it and theres not a lot of veriation in load presure like a 3d printer then there fine , but under load like routing milling drilling you need to gear down the steppers and need much stronger ones by a long way , at least leadscrews offer a inherant reduction
10:14 PM rue_mohr: not more wattage, just more torque
10:15 PM anonnumberanon: Ty
10:16 PM AchiestDragon: chains well there stronger than belts , but stilll the same issues as regards loads on the drive motors/servos ,
10:17 PM rue_mohr: but chains self clear
10:18 PM anonnumberanon: Robertj what i like about it is the handles on each axis
10:22 PM AchiestDragon: http://www.cnczone.com/forums/linear-and-rotary-motion/20075-cheap-acme-lead-screws.html
10:23 PM rue_mohr: acme is overrated
10:23 PM AchiestDragon: true but if needs must and you could upgrade them later
10:27 PM rue_mohr: I have normal threaded rods that been running for years and havn't over-worn
10:37 PM anonnumberanon: Can you get a thenth of an inch on aluminum at 1 inch depth?
10:46 PM rue_mohr: no, the spindle isn't strong enough
10:46 PM rue_mohr: I need like a 20hp motor for that
10:47 PM rue_mohr: ok I'm printing a cooling shroud for that spindle motor
11:01 PM AchiestDragon: alternativly you could machine your own step 1 https://www.youtube.com/watch?v=MUiCrP9ECuk ,,,, step 2 https://www.youtube.com/watch?v=ajz9EqRziL8
11:03 PM anonnumberanon: Lol
11:04 PM anonnumberanon: The stuff i want to do myself is the frame. I can weld.
11:04 PM AchiestDragon: with a lathe most of the time its like thread cutting but you use a grinding attachment to give the thread the right profile https://youtu.be/A6zHcaquBIM better vid of that
11:05 PM anonnumberanon: Using the same configuration and dimensions as a cnc 2020.
11:05 PM anonnumberanon: I think thats where im headed.
11:07 PM rue_mohr: you should look at mimicing it up like the cnc
11:08 PM anonnumberanon: My model?
11:08 PM rue_mohr: getting togethor a motorized xyz platform will do a lot to get you started
11:08 PM rue_mohr: yes
11:08 PM rue_mohr: we have learned a lot so far
11:08 PM anonnumberanon: True
11:09 PM rue_mohr: it might help you if I post an image of about 1000000 stepper motors that I have
11:09 PM rue_mohr: so you can get a feel to identify them
11:09 PM rue_mohr: if we posted
11:09 PM rue_mohr: what?
11:10 PM rue_mohr: we , you said I
11:10 PM anonnumberanon: Iv learned too that movi g the table instead of the spindle makes the machine large
11:10 PM rue_mohr: I can do it
11:10 PM rue_mohr: we should get credit
11:10 PM rue_mohr: what if I want credit?
11:10 PM rue_mohr: then your being s snot-head
11:10 PM rue_mohr: snot head?
11:10 PM anonnumberanon: And the rods long, so not rigid
11:10 PM rue_mohr: yea a snot-head
11:10 PM AchiestDragon: from what i lerened , use steppers of twiche the powere you think your going to need , if you look at a lot of the conversions and what they use still go for bigger ones , as most conversions are a only just capable of handling it type spec
11:10 PM rue_mohr: your just saying htat casue I have a cold
11:10 PM rue_mohr: well for your information I got a cold too
11:11 PM rue_mohr: anonnumberanon, yea, thats a good lesson too
11:12 PM AchiestDragon: and second to do it properly with little or 0 backlash then use proper ball screws , they may cost a lot but at the end of the day a £2000 home machine chan get as good a performance and can out doo some comertial consumer / hobby mills that cost more than double that
11:12 PM anonnumberanon: Evaluating this guy s design now
11:12 PM anonnumberanon: https://m.youtube.com/watch?v=Klk6T1IBowU
11:13 PM AchiestDragon: if you dont skimp on parts , and over rate things where posible
11:14 PM rue_mohr: anonnumberanon, look at the designs I use, evaluate the tradeoffs
11:14 PM anonnumberanon: Rue give me some specs
11:15 PM rue_mohr: good enough for what I do
11:15 PM rue_mohr: and you dont do what I do
11:15 PM rue_mohr: makes it pretty good for you
11:16 PM rue_mohr: zlog
11:16 PM Tom_L: pics on the way
11:16 PM * rue_mohr needs a reminder how we started down this road...
11:16 PM rue_mohr: http://tom-itx.no-ip.biz:81/~tom-itx/irc/logs/%23robotics/2017-12-02.html
11:16 PM AchiestDragon: most hobby mills use dovetails as linear slides , with some tention adjustment , there not ever realy suitable for making a good cnc as if too lose they give too much play if too tight the steppers skip , you end up needing to replace them with realy good liniear rails to get the thing to work well
11:17 PM rue_mohr: http://tom-itx.no-ip.biz:81/~tom-itx/irc/logs/%23robotics/2017-12-04.html
11:17 PM rue_mohr: 08:00 PM anonnumberanon: Im not taking a thousand dollar bet before knowing the odds are in my favor :)
11:18 PM rue_mohr: 08:04 PM anonnumberanon: Ok ill start with 3 servos, a $30 drill and and an arduino
11:18 PM anonnumberanon: Do you know what I meant?
11:18 PM anonnumberanon: That one was a joke obv.
11:18 PM rue_mohr: I think I see what happened here
11:18 PM anonnumberanon: Im not that retarded.
11:19 PM rue_mohr: you wanted to build a professional cnc machine, but I could tell you had none of the experience of knowledge you would need
11:19 PM rue_mohr: so I decided to kickstart you on the right road
11:19 PM rue_mohr: so, were perfectly on track
11:19 PM rue_mohr: cool
11:19 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Z_Column1.jpg
11:19 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Z_Column2.jpg
11:20 PM anonnumberanon: Ah, okay.
11:20 PM rue_mohr: tom knows that hes doing, but you see, he's been down this road a few times before
11:20 PM * Tom_L kickstarts rue_mohr
11:20 PM rue_mohr: and aleady has a working machine to recycle most of the tech from
11:21 PM rue_mohr: tom is just taunting me with his lavish use of deskspace
11:21 PM Tom_L: those risers are temporary just for effect
11:21 PM Tom_L: you should see all the shit on the floor
11:21 PM rue_mohr: Tom_L, actually, if you make the risers vert they will be stronger
11:21 PM rue_mohr: aka not pay them down
11:21 PM rue_mohr: lay
11:21 PM rue_mohr: CANT TYPE
11:21 PM anonnumberanon: Rue i just finshed a custom exhaust system with butterfly valves on my car
11:22 PM Tom_L: but i'd have nothing to bolt the z too
11:22 PM Tom_L: to
11:22 PM rue_mohr: anonnumberanon, so obviously you didn't 3d print or cnc them
11:22 PM Tom_L: that's gonna be bolted not welded
11:22 PM anonnumberanon: The thing ive learned were many.
11:22 PM AchiestDragon: and the the fact that hes using ball screw type bars on the windows
11:22 PM rue_mohr: anonnumberanon, we should start you on software too
11:22 PM Tom_L: so it's adjustable
11:22 PM Tom_L: rebar
11:22 PM rue_mohr: anonnumberanon, when your not glueing, download and install grbl on your uno
11:22 PM Tom_L: i got broke into once
11:22 PM Tom_L: never again
11:22 PM Tom_L: bastards
11:22 PM rue_mohr: dont worry abotu the settings, just try to get it to compile and upload, thats hard enough
11:23 PM AchiestDragon: yea
11:23 PM rue_mohr: anonnumberanon, you have a windows computer?
11:23 PM Tom_L: rue_mohr what do you think of that setup now?
11:23 PM anonnumberanon: Yeah.
11:24 PM Tom_L: i'll add more braces to the bottom
11:24 PM AchiestDragon: wodden shutters help , close them when not in stops them looking in to see if theres anything
11:24 PM rue_mohr: Tom_L, its awsome, I dont know how much it matters,
11:24 PM Tom_L: some
11:24 PM rue_mohr: but when the pillar is pushed back it will cause a reverse C like deformation in the 1/4" plate
11:24 PM Tom_L: i changed the whole Z by suggestions and looking at real ones
11:25 PM Tom_L: i might weld an edge on the back of it like an L
11:25 PM Tom_L: underneath
11:25 PM rue_mohr: I think you have prompted a change in the way I was gonna make mine tho
11:25 PM anonnumberanon: Tom is that 1/4 steel?
11:25 PM Tom_L: most of it is yes
11:25 PM rue_mohr: I was gonna put the slider on the tip of the overhang, I think I will move it back
11:26 PM Tom_L: no it needs to be back so the whole thing moves
11:26 PM Tom_L: you get more useable space that way
11:26 PM rue_mohr: yep
11:26 PM rue_mohr: +-, I still dont know if I'll ever use more than 2"
11:26 PM rue_mohr: how far is your hangout? 9"?
11:26 PM rue_mohr: (w/spindle)
11:26 PM anonnumberanon: Tom what do you do about punching nice holes through it exaxtly where you want?
11:27 PM rue_mohr: drillpress
11:27 PM rue_mohr: it dosn't get laborious till about 3/4"
11:27 PM rue_mohr: then you just feel like hanging a weight on the drillpress handle and going for a walk
11:28 PM Tom_L: i'll have about 9" in Y i think
11:28 PM Tom_L: maybe a bit more
11:28 PM Tom_L: that tube is 4"
11:28 PM Tom_L: it'll sit on one of those aluminum plates i did yesterday
11:29 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Z_Axis_Plate1.jpg
11:29 PM Tom_L: that one
11:29 PM rue_mohr: yea, some of that 9" is the sliders and motor radius
11:29 PM AchiestDragon: i would of looked at using a bit or rsj h beam , you know the stuff they use it are roof struts on industrial units , with a 8" by 10" profile and about 1/2" thick 2 bits for the sides and one for the upright , so theres strenth where it matters
11:29 PM rue_mohr: the tube is stronger
11:29 PM Tom_L: right
11:30 PM rue_mohr: I have some (?) 4x5 I beam for mine
11:30 PM rue_mohr: and some 8" channel for the base
11:31 PM rue_mohr: I'm verry caught up in what matters and what doesn't
11:31 PM Tom_L: weld a plate to the I beam so you can adjust it to be perp to the base
11:31 PM Tom_L: then bolt it on
11:31 PM anonnumberanon: Tom like this one? http://ibb.co/gz2Xjb
11:32 PM rue_mohr: yes, my whole build philosophy is to make a ridgid superframe thats 'close' and shim the stuff attached to it
11:32 PM anonnumberanon: I couldnt do it with big hand drill
11:32 PM Tom_L: anonnumberanon, what about it?
11:32 PM Tom_L: i've got a press similar
11:32 PM anonnumberanon: That one a good one?
11:32 PM rue_mohr: no, but it'll do the job and its cheap
11:32 PM Tom_L: no idea
11:33 PM Tom_L: mine was a cheap enco i got years ago
11:33 PM rue_mohr: mine was cheap cause someone won it and was selling it (they didn't really know what it ws)
11:33 PM Tom_L: just put new belts on it
11:34 PM rue_mohr: Tom_L, whats the distance between the z slides on the same side?
11:34 PM AchiestDragon: on the i /h beem you need to weld plates in the resess sections at 30 to 45 deg angles in a fasion like latice tower supports to reduce twist even more
11:34 PM rue_mohr: part of the reason I didn't want to put the sliders back that far is the leverage amplification of the play in the bearings
11:35 PM Tom_L: 6"
11:35 PM Tom_L: with 4 pads to support it
11:35 PM rue_mohr: AchiestDragon, I dont plan on bits larger than 1/4" or have a spindle with more than 1/2HP
11:36 PM rue_mohr: and your 9" out
11:36 PM rue_mohr: so thats only 1.5x the vert play in the sliders
11:36 PM rue_mohr: which is prolly a fraction of a thou anyhow
11:36 PM Tom_L: i plan to back my angle iron uprights with triangles
11:37 PM rue_mohr: I wonder if I should cut my metal and do a mockup of the machine I dont expect to build yet
11:38 PM rue_mohr: that said, there is NO WAY IN HELL I can move that peice of channel right now
11:38 PM Tom_L: do it
11:38 PM rue_mohr: 8" x 2", 1/4" thick, iirc 15' long
11:38 PM Tom_L: cut it where it lies
11:38 PM rue_mohr: I'v got a cold
11:39 PM Tom_L: i've got black crud up my nose
11:39 PM rue_mohr: so I'm not even 100% normal, and even then I dont know if I could do it
11:39 PM Tom_L: what of it?
11:39 PM anonnumberanon: Prob not
11:39 PM rue_mohr: I have to use the horiz bandsaw to cut it
11:39 PM rue_mohr: buuuuut
11:39 PM anonnumberanon: You need to lift m8
11:39 PM Tom_L: use an angle grinder with a cutoff blade
11:39 PM rue_mohr: it WOULD be easier to move the bandsaw than the channel
11:40 PM rue_mohr: god, at 9:40pm
11:40 PM rue_mohr: if, for nothing else I do, the neighbours would come after me with pitchforks for that
11:40 PM anonnumberanon: Everyones doin it
11:40 PM Tom_L: lotsa sparks
11:41 PM anonnumberanon: Im haching the cnc 2020 blueprints and converting to steal as we speak
11:41 PM rue_mohr: so, maybe tommorow I'll look at UNBURRYING the bandsaw and moving it to the channel
11:41 PM Tom_L: i've still gotta cut the plates for the Z extension
11:42 PM Tom_L: but most of the stuff i have cut is fairly squared up
11:42 PM Tom_L: need to square up the angle iron uprights
11:42 PM Tom_L: then de'paint everything
11:43 PM anonnumberanon: Will welding bend the parts?
11:43 PM Tom_L: gonna take a shower and go to sleep
11:43 PM Tom_L: yes it will
11:43 PM Tom_L: you gotta be strategic with it
11:43 PM Tom_L: technically you should normalize the metal after you finish welding it
11:43 PM Tom_L: but i don't have a way to do that
11:43 PM rue_mohr: welding dosn't bend th parts, cooling does
11:44 PM Tom_L: i used to shrink body pannels that way
11:44 PM Tom_L: i know
11:46 PM anonnumberanon: Thats a big issue in welded metal vs bolts everywhere
11:46 PM Tom_L: it's a tradeoff. bolts come loose
11:46 PM rue_mohr: thats why I dont make the superframe perfect
11:46 PM rue_mohr: I just make it strong
11:47 PM rue_mohr: I'll worry about what I bolt to be being straight/aligned/etc
11:47 PM anonnumberanon: Even with lock tite?
11:47 PM Tom_L: probably not
11:47 PM rue_mohr: that last cnc machine has about 1/8" of shims on one part
11:47 PM Tom_L: i'm probably gonna use some blue
11:47 PM Tom_L: rue_mohr, mine may too before it's all over
11:54 PM AchiestDragon: https://drive.google.com/file/d/14sHEukefb29hxem_oWkcJ_oJtLWW9cCX/view?usp=sharing like this (for the main beems montings not shown
11:59 PM AchiestDragon: and at least 1/2" thick plate for the z end mounting plate idealy that should run the full lenth of the y with angle plates like tom used but at 45 deg arround it