#garfield Logs

Apr 27 2018

12:03 AM rue_mohr: so, I wonder what butt splicing that bent pipe will be like
12:06 AM rue_mohr: my idea is to slip a split peice inside it
12:06 AM rue_mohr: dunno if I need to fill it with some heatsinkish stuff when welding
12:06 AM rue_mohr: there will be two rings, same dia, spaced about 6" apart with zigzag pipe spacers
12:06 AM rue_mohr: and 3 sets of that
12:06 AM rue_mohr: dont have an upgrade on my idea for supporting the whole mess
12:06 AM rue_mohr: which is basically two upright posts
12:06 AM katsmeow: i thought you had workedout the joints fell where you were putting bearinsg tween the hoops, so the bearing assy would clamp and hold the half-hoops
12:06 AM rue_mohr: the current drawing is two rings, with a plate spacer where the bearings go
12:06 AM rue_mohr: plan still involves optical data links thu the pinions
12:06 AM rue_mohr: power can be on brushes
12:06 AM rue_mohr: oo brushes...
12:07 AM rue_mohr: https://www.aliexpress.com/item/10-pcs-15mm-x-10mm-x-5-9mm-Power-Tool-Carbon-Motor-Brush/32861589790.html
12:07 AM rue_mohr: yea...
12:10 AM rue_mohr: https://www.aliexpress.com/item/10x-New-2-Pcs-Electric-Replacement-Motor-Carbon-Matal-Brushes-7mm-x-11mm-x-18mm/32707368726.html
12:10 AM rue_mohr: mmm better
12:10 AM * katsmeow is faceplanty
12:10 AM * rue_mohr uses strings to keep her bits up in the right places
12:10 AM * rue_mohr motorizes strings holding hands over keyboard
12:10 AM * katsmeow waves gnites
09:08 PM Tom_L: a rather proud moment today.. my kid went to the skillsusa.org state competetion for cnc milling specialist. amongst other things he was given a blueprint and had to hand write code to machine the part. i was rather surprised today when i got a call saying he got 1st place
09:09 PM Tom_L: on another note rue_shop3, saw your pipe bender... pretty cool
09:26 PM rue_shop4: :)
09:26 PM rue_shop4: x2
09:28 PM * katsmeow looks around
09:30 PM * Tom_L shows katsmeow the end of her tail
09:30 PM * katsmeow turns towards it
09:32 PM Tom_L: dammit.. i can't remember how to create an offset plane
09:33 PM katsmeow: get the pilot a lil tipsy
09:36 PM rue_shop4: so they call it an aerotrim
09:42 PM * katsmeow has a usb extension cord, and is afraid to use it
09:43 PM Tom_L: no wonder, you gotta create the plane before you enter the sketcher
10:03 PM katsmeow: i need to see more talking
10:19 PM Tom_L: visual: http://tom-itx.no-ip.biz:81/~webpage/cnc/test_block.jpg
10:20 PM Tom_L: ok, i cut the profile using G17 and i want to cut the 3/8" slots with a ballnose sweeping the Y axis
10:20 PM Tom_L: so would i position the cutter with G17 to the first slot start location then switch to G19 and swing the arc and back to G17 to position to the next slot and repeat?
10:20 PM Tom_L: G17 G0 x-1, y-1, z1
10:20 PM Tom_L: then G19 G3 xx yy ii jj
10:21 PM Tom_L: then G17 G0 x-4 y-1 z1
10:21 PM Tom_L: and repeat the G3 arc
10:22 PM Tom_L: G19 G3 x0, y-2, i0, j-1 i believe
10:28 PM katsmeow is now known as katsmeow-afk
10:53 PM rue_: oo
10:54 PM rue_: what is it?
10:54 PM rue_: kat, remember the driver program you ran that asked what type of programmer?
10:56 PM Tom_L: it's just an exercise to learn
10:57 PM rue_: shoudl I make one too?
10:58 PM Tom_L: feel free
10:58 PM rue_: ok what the block size?
10:58 PM Tom_L: i want to learn more about work planes
10:58 PM Tom_L: random block size
10:58 PM Tom_L: 3 x 5 iirc
10:58 PM rue_: whats yours?
10:59 PM Tom_L: slots are 3/8 with a 2" sweep .5 above the surface
10:59 PM rue_: how about 30x50mm?
10:59 PM rue_: ah
10:59 PM rue_: damn imperial
10:59 PM Tom_L: centered on the 3" side
10:59 PM Tom_L: 1" in from each end
11:00 PM Tom_L: i don't think my post is set up to do workplane changes
11:00 PM Tom_L: i've never really tried it
11:00 PM rue_: whats the block radius?
11:01 PM rue_: (corners)
11:01 PM Tom_L: .25 on the corners just to put out the arc code
11:01 PM Tom_L: so i have linear and arc code in G17 to visualize it
11:02 PM Tom_L: i also think i can move to the 2nd slot and leave it in G19 but i'd have to re'orient the axis in my head
11:02 PM rue_: what is the disc radius
11:02 PM Tom_L: that might be a 2nd exercise
11:02 PM Tom_L: i told you
11:02 PM Tom_L: 2" Diameter
11:02 PM rue_: oh 2"
11:02 PM Tom_L: and 3/8"
11:03 PM rue_: so their 3/8 wide too?
11:03 PM Tom_L: yes
11:03 PM Tom_L: just the width of the cutter
11:03 PM Tom_L: the point of the exercise
11:07 PM rue_: 1" from the end, centre or edge?
11:07 PM Tom_L: end
11:07 PM rue_: oh, sorry
11:07 PM Tom_L: from zero, in 1" and 4"
11:07 PM rue_: "1" from the end" centre or edge? of the disc
11:08 PM Tom_L: centerline
11:08 PM rue_: k
11:08 PM Tom_L: always
11:08 PM Tom_L: that's just proper programming
11:10 PM rue_: ok, what is z thick of block?
11:10 PM Tom_L: 1
11:12 PM rue_: haha, I got that so wrong...
11:12 PM * rue_ thinks
11:12 PM Tom_L: it's kindof a fun exercise if you think about it even if it's a simple part
11:12 PM Tom_L: the actual part is more complex
11:15 PM Tom_L: huh, my template _should_ output the plane change
11:15 PM katsmeow-afk is now known as katsmeow
11:16 PM rue_: I thik I got it...
11:17 PM rue_: and I think it crashed...
11:18 PM rue_: oh god,t hat took forever
11:19 PM rue_: the slots peak 1/2" deep, right?
11:19 PM rue_: why does mine smell different
11:19 PM Tom_L: i didn't measure it
11:19 PM rue_: ok
11:19 PM Tom_L: i picked random dimensions for the exercise
11:21 PM rue_: http://ruemohr.org/~ircjunk/images/tomthing1.png
11:21 PM Tom_L: the exercise is to cut the profile, switch workplanes and cut the slot all in one program
11:21 PM rue_: there is my tomthing1
11:21 PM rue_: your mechanisms are different of course
11:21 PM Tom_L: it's all good
11:22 PM rue_: I did the top cuts with a rotated extrusion, I messed up the axis they were on
11:22 PM Tom_L: it would be easiest to program the cuts at the half circle as the start point
11:22 PM Tom_L: if it's programmed manually
11:22 PM rue_: http://paste.debian.net/1022411/
11:22 PM Tom_L: then the start, center and end points are all in the same plane
11:24 PM Tom_L: i _might_ try coding it tomorrow. i wish i had a way to simulate the gcode but i don't
11:25 PM rue_: simulate with foundation foam
11:25 PM Tom_L: air
11:26 PM rue_: I cant easily radius anything tho
11:26 PM Tom_L: i'll scale it down to 1/8" cutters if i do
11:26 PM rue_: for example I cant just radius that whole top edge
11:26 PM Tom_L: the idea is to get the tool to follow the 2" circle around
11:27 PM rue_: yup
11:27 PM rue_: path plane
11:27 PM Tom_L: i did that on the A12 part for the slot
11:27 PM Tom_L: but that wasn't an arc
11:34 PM rue_: the design process is a bit different between you and me, I'm starting with nothing and your starting with a defined mateial blocks
11:34 PM rue_: hi kat
11:34 PM rue_: so your process is specifically subtractive
11:34 PM katsmeow: hi rue
11:35 PM rue_: so
11:35 PM katsmeow: sew
11:35 PM katsmeow: la?
11:35 PM rue_: did you try rerunning the program in the blame_rue folder and adding driver support for your new programmer?
11:35 PM katsmeow: no, i lacked those instructions
11:36 PM rue_: oh
11:36 PM katsmeow: uh oh
11:36 PM rue_: ?
11:37 PM katsmeow: i must have named it something else, "blame" is not found as a file or folder name
11:37 PM rue_: the dragon works right now tho, I'd almost prefer to stick with it for now and get you a whole working toolchain, then change the dragon out
11:37 PM katsmeow: what did i name it?
11:37 PM rue_: its rues fault?
11:38 PM katsmeow: no
11:38 PM rue_: damnit rue?
11:39 PM katsmeow: no "rue"
11:39 PM rue_: shall we cahnge it later?
11:39 PM rue_: would you like to get an assembler going?
11:40 PM katsmeow: instal_filter?
11:40 PM rue_: it is
11:40 PM rue_: or would you like to get an assember going?
11:41 PM * rue_ pushes on the tiller with everything hes got
11:41 PM katsmeow: i do not know
11:41 PM katsmeow: i am depressed andnonfunctional
11:42 PM katsmeow: i have the cable here, i have the usbisp here, i need instructions on what you want me to donext
11:42 PM rue_: you seem to be typing ok, would you like a tea?
11:42 PM katsmeow: no
11:42 PM rue_: how about toast?
11:42 PM katsmeow: i guess you no longer want to do the avr stuff
11:42 PM rue_: using the new programmer would require (I think) changing around all the connectors on your board
11:43 PM rue_: I do, I'm trying to buy time for the next step that I dont quite have set up yet
11:43 PM rue_: and am working on as we speak
11:46 PM Tom_L: should be able to just: avrdude -c usbasp -p t2313 ........
11:47 PM rue_: I dont think so on windows
11:47 PM rue_: and its an isp
11:47 PM rue_: iirc
11:47 PM rue_: kat
11:47 PM katsmeow: rue
11:47 PM Tom_L: should work the same
11:47 PM rue_: kat
11:47 PM katsmeow: rue
11:47 PM Tom_L: or usbtiny
11:47 PM Tom_L: one of those 2
11:47 PM rue_: I have an asm file... its ugly
11:48 PM katsmeow: i can keep my eyes closed
11:48 PM Tom_L: can you use a xilinx jtag cable to program avr?????
11:49 PM rue_: keep in mind, I'm testing toolchain
11:49 PM Tom_L: xil
11:49 PM Tom_L: Xilinx JTAG cable
11:49 PM rue_: Tom_L, not if avrdude dosn't support it
11:49 PM Tom_L: Xilinx JTAG cable
11:49 PM Tom_L: xil
11:49 PM katsmeow: i think Tom is broken
11:50 PM Tom_L: avrdude 5.10 says it will
11:50 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/avr/avrdude/avrdude-doc-5.10.pdf
11:50 PM Tom_L: P. 11
11:50 PM katsmeow: what, i am set back another week to buy something else i won;t need when it gets here?
11:50 PM Tom_L: no you don't need it
11:50 PM katsmeow: you realise i have paid $100's so far to get one blinky lite on pin 11 of a tiny2313?
11:50 PM Tom_L: i just happen to have one and was surprised to see avrdude supported it
11:51 PM katsmeow: i wonder if i can bang my head on the wall so hard i knock myself out
11:51 PM Tom_L: i bet that's possible
11:51 PM Tom_L: i'm not going to try it personally
11:52 PM rue_: kat if you could wget http://ruemohr.org/~ircjunk/avr/t2313/main.asm
11:52 PM katsmeow: 2018-04-27 23:54:25 (384 KB/s) - `main.asm' saved [7748/7748]
11:52 PM rue_: ok
11:53 PM katsmeow: holyshit, what is with all the stabbing??
11:53 PM rue_: here is your task, successfully run the command avr-as main.asm -o main.elf
11:53 PM rue_: stabbing?
11:53 PM rue_: oh, its translated badly from C
11:54 PM rue_: dont worry about that
11:54 PM rue_: :) your goal is to successfully run the command avr-as main.asm -o main.elf
11:54 PM rue_: if the command works, it will say nothing
11:55 PM katsmeow: avr-as ?
11:55 PM katsmeow: no such thing
11:55 PM Tom_L: that's avr's assembler of some flavor
11:55 PM katsmeow: oh, found it
11:55 PM rue_: we found it last time, is might be just called 'as'
11:55 PM rue_: ok
11:56 PM katsmeow: grrrrrrrrrr
11:56 PM katsmeow: which did you want? as you typed that i ran it on avr-as
11:56 PM rue_: they will probably be the same program, avr-as is preffered
11:57 PM rue_: did it silently execute? no errors?
11:57 PM katsmeow: o errors, after i gave it fullpah
11:57 PM katsmeow: no errors, after i gave it fullpath
11:57 PM rue_: ok, did it create main.elf
11:57 PM rue_: ?
11:58 PM katsmeow: D:\AVR-stuff\bin>yeas, non-text file
11:58 PM katsmeow: 'yeas' is not recognized as an internal or external command
11:58 PM rue_: good good
11:58 PM rue_: thats how you make an elf...
11:58 PM rue_: so, to make a hex from an elf...
11:58 PM rue_: please sit by
11:59 PM * katsmeow faceplants
11:59 PM * rue_ injects sugar into kat