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May 31st, 2011


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07:20 pm - Not dead yet
laser-out-res by dingotush
laser-out-res, a photo by dingotush on Flickr.

Somewhere in between preparing for ConFuzzled and the con itself I managed to finish the placement and routing of a couple of PCBs. So, three weeks later and here they are, time to start stuffing and soldering.

As for ConFuzzled itself, I enjoyed it. I also frustratingly failed to take a single photo, fursuit, or go to any of the dances. I regret all three, but had fun anyway. Poor Kibble hasn't been out for a year now, I need to do something about that.

Right now, this circuit is the focus of my free time. I've already had one change of heart, and found on footprint cock-up, but nothing that can't be fixed.


(11 comments | Leave a comment)

Comments:


[User Picture]
From:yagfox
Date:May 31st, 2011 08:04 pm (UTC)
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What does it do? :)
[User Picture]
From:dingotush
Date:June 1st, 2011 09:23 pm (UTC)
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It takes the signal levels used in modular synthesizers and converts them to the differential outputs needed by ILDA. It also clips them so they never exceed the voltage range, and for the X and Y signals as it's about to clip it blanks the RGB outputs. There's a bit of logic for an on-off safety control too.

Hopefully I'll get some real old-school displays out of the finished unit.
[User Picture]
From:shockwave77598
Date:May 31st, 2011 08:46 pm (UTC)
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Driver for XY galvos?
[User Picture]
From:dingotush
Date:June 1st, 2011 09:25 pm (UTC)
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Got it in one - well, at least driver for the cable to the projector. I'll leave the actual scanner drivers to the experts.
[User Picture]
From:aerofox
Date:May 31st, 2011 10:21 pm (UTC)
(Link)
Look-it all the purty resistors!

Reminds me of that MicroR2 40m Direct Conversion receiver I built not long go.

So, you designed the board? Nice work!
[User Picture]
From:dingotush
Date:June 1st, 2011 09:34 pm (UTC)
(Link)
I do like the modern metal film ones! Still can't read the colour codes though (oh to have working colour vision). Yep, board is a one-off. I think it's the fifth one I've done using CAD tools and getting someone else to fabricate it. Decided my time is too precious to spend it mucking about with etchant or hand-wiring something that complex.

You built something without using octal sockets and tag board? ;)

[User Picture]
From:aerofox
Date:June 1st, 2011 10:16 pm (UTC)
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hehe, yup, I've been known to build modern equipment ^_^

Here is a link to a PDF of the DDS VFO I built a few years ago. I hoped to build a complete solid state transceiver, but that hasn't materialized yet. I have the receiver PCBs but I will need to layout and have the transmitter PCBs made. Just havn't had time to do so :(

*hugs*
[User Picture]
From:maskwa
Date:June 2nd, 2011 09:28 am (UTC)
(Link)
I know someone who sidesteps his R-G color blindness using a red filter in front of one eye (his left, for what it's worth). He uses the difference in brightness between what his left and right eye see to sort out ambiguous hues.

Not to say it'll help you, just sayin' in case you've never heard of it.
[User Picture]
From:snowtiger_uk
Date:May 31st, 2011 11:05 pm (UTC)
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All I want to say is DO NOT use lead free solder.
[User Picture]
From:dingotush
Date:June 1st, 2011 09:36 pm (UTC)
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Thankfully I have about a kilo of the good old stuff. Realistically, that's probably enough to keep me going 'till I can't keep my hands steady enough to solder.
[User Picture]
From:aerofox
Date:June 1st, 2011 10:18 pm (UTC)
(Link)
Trying to avoid this fiendish feline?


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