2016-04-25.log

--- Log opened Mon Apr 25 00:00:56 2016
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abetusknmz787, yes, it just passes through the units without doing conversion.  The flag is, as you figured out, just setting the initial gcode.  That's too bad about the 'zen garden', I'll look into it.03:57
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kanzure.title https://www.youtube.com/watch?v=5hyI_dM5cGo06:39
yoleauxThe Voder - Homer Dudley (Bell Labs) 1939 - YouTube06:39
kanzure( from http://99percentinvisible.org/episode/vox-ex-machina/ )06:42
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maakucatern: I'm looking at this as well (more for my own voice capture) https://www.indiegogo.com/projects/ripplebuds-world-s-1st-noise-blocking-earbuds#/10:29
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maaku.title http://research.google.com/pubs/pub45226.html11:47
yoleauxGPUCC - An Open-Source GPGPU Compiler11:47
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kanzure.title https://news.ycombinator.com/item?id=1156505612:27
yoleauxStorage Pod 6.0: Building a 60 Drive 480TB Storage Server | Hacker News12:27
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kanzurebeep bloop18:24
c0rw1nboop bleep18:25
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nmz787_i/me foghorn19:17
kanzureowe. don't do that.19:18
nmz787_iwe need a transliteration of the dialup modem initialization sound19:24
xentrac_nmz787_i: have you seen windyoona's spectrographic visualization of it?19:36
xentrac_.g windyoona modem sound19:36
yoleauxhttp://www.windytan.com/2012/11/the-sound-of-dialup-pictured.html19:36
nmz787_ichecking now19:36
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abetusknmz787_i, pushed a newer version that handles units better.  Any luck with using gbl2ngc?19:57
abetusknmz787_i, I don't see what you're talking about with the 'zen garden' paths....do you mind providing an example gerber?20:02
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nmz787_iabetusk: I haven't tried any of your newer code, but with the code I was able to get working (I don't think there was an apparent error in the output, as far as I could tell) I did then write some code to massage the g-code a bit, and did laser a few things with the resultant g-code20:19
nmz787_iabetusk: the zen garden thing could have been a g-code visualizer bug, I guess20:19
nmz787_iI will try to reproduce later, when I get home20:19
abetuskok, thanks.  Glad to hear you're using it.  Let me know if you run into any more problems20:22
nmz787_iabetusk: here's some output... which I scaled because I misread the output (it was showing some numbers in the 100s, but I know my laser only goes up to 30... so I wanted to ensure I could laser something without it jamming)  (i found later that the coordinates needed translated one corner of their bounding box was at 0,0.... instead of wherever it was in the original file... something like 100,100)  http://imgur.com/zrlWRDg20:30
nmz787_ias you can see, my scaling actually made things BIGGER!20:30
nmz787_iand also I need to flip things, somewhere20:30
nmz787_i(I didn't laser that PCB, that's OSHPARK!)20:30
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abetusknmz787_i1 (nmz787), cool.  So it looks like you need to play with the intensity a bit but otherwise things look decent.  You probably already know this but setting the radius lower will make the stripes finer.20:36
abetuskand that mirroring and whatever else is annoying...I guess it'd be best to provide an option for that?20:36
abetuskalso maybe some translate, rotate operations?20:36
abetuskmaybe that's overkill20:36
abetuskI got around this by writing some small tools to do simple operations on the gcode (mirror, scale, translate etc.)20:37
nmz787_i1yeah I can do the mirroring easily.... that's like a abs(0-coord_val) or something, I think20:41
nmz787_i1I think the paper is nonhomogenous, so that adds to the general ugliness of the etch20:41
nmz787_i1I'm not sure the mirroring is your fault, or how gerbers are exported maybe?20:42
abetuskinteresting.  You can also go over it in the other direction20:42
nmz787_i1maybe they mirror things physically20:42
abetuskhm, not sure.  I always eyeball it so it wouldn't surprise me if I was just being sloppy20:42
nmz787_i1i.e. flip over some transparency sheet after they print the gerbers20:42
nmz787_i1ah20:42
nmz787_i1ok20:42
nmz787_i1hehe20:42
nmz787_i1when you say radius, you mean in the gbr2ngc?20:43
nmz787_i1or do you mean in my laser firmware (grbl)?20:43
abetuskin gbl2ngc.  presumably you got that striped pattern by specifying a '-r' (radius) option.  gbl2ngc was 'meant' for a cnc so it offsets by the endmill radius (+ runout...) that you specify20:44
nmz787_i1I guess for people who are less up to quick programming, or geometrical programming (I know some people just can't think visually, which I guess I am alright at, as far as CAD/image processing goes)20:45
abetuskah, so maybe that's what the zen garden thing you were seeing...it is larger than the original, by the radius specified20:45
nmz787_i1they might appreciate the options20:45
nmz787_i1I guess that makes sense... the laser does have a width20:45
abetuskwell, no need to add it unless it's actually wanted20:45
nmz787_i1hmm20:46
nmz787_i1I realized I couldn't get the in-fill without specifying a radius20:46
abetuskyeah20:46
nmz787_i1(that one took some playing with to realize)20:46
abetuskI use the radius to inform how fine the infill should be20:46
nmz787_i1not sure how hard arg parsing is for you (not sure if you're using a library to help)... but you could probably prevent those options unless radius is also specified20:47
nmz787_i1or print a message "infill can20:47
abetuskgive a warning or error?20:47
nmz787_i1can't be used without a radius'20:47
nmz787_i1yeah, either... would've saved me 10 or 20 minutes, I think20:47
nmz787_i1I was tracing through the code and adding print statements :P20:48
nmz787_i1"doing zen"20:48
abetuskok, will do20:48
nmz787_i1so if that took me 10 or 20... someone else might just give up20:48
nmz787_i1hehe20:48
nmz787_i1ok, leaving work now, whew20:48
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abetusknmz787, ok, updated and pushed.  Let me know how it goes or if you run into any other problems21:03
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nmz787abetusk: thanks! I might not play with it again until later in the week or possibly next weekend... but I'll keep you updated! Glad you pointed me to it, I'm not sure how much [interesting] progress I'd have made this weekend without it21:19
abetuskThere are some other options but I remember having a little difficulty getting them working.  Worst case you could have rastered but I'm glad this worked out for you.21:21
nmz787at this point, I am concerned with burning and/or chemical fumes... and am thinking of whether I should install a fume hood in what is/was a food pantry... or if I should just take these smelly things to the garage (which is dusty and relatively unconditioned... so not very desirable for sensitive work)21:21
nmz787abetusk: do you know of a gerber to g-code raster tool?21:21
nmz787I mean, I didn't find anything interesting... and was on the path to learning how to parse (or use existing gerber parser libraries/code) the format and convert things myself21:22
nmz787(which I didn't really want to do)21:22
abetuskjust googling around: https://github.com/305engineering/Inkscape http://nebarnix.com/img2gco/ https://github.com/joshbuddy/graster .  I haven't used any of them21:24
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nmz787ah, i guess those aren't gerber specific, so probably why I didn't reel them in21:28
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abetuskThe novelty of my tool is that it's gerber to gcode direct, it can do fill patterns and it's vector, not raster21:29
abetuskI found a good gerber to gcode generator but the gcode produces had a lot of artifacts from first pixelating it then converting to a gcode file.21:29
abetuskIt was overkill and I could have just gotten away with using the tool but I made gbl2ngc anyway21:30
abetuskThere are definitely other options so you might want to look around21:30
nmz787mmm, well artifacts are definitely something I don't want21:31
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--- Log closed Tue Apr 26 00:00:57 2016

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