New Gieskes Video Synth from Bleep Labs: 3TrinsRGB+1c

Discussion of modular and standalone video generating/processing techniques and associated hardware.

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sync24
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Post by sync24 » Wed Oct 29, 2014 7:11 am

mmm, I'll see if I can get my university to buy one of those too...!

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makers
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Post by makers » Thu Oct 30, 2014 1:18 pm

Ginko wrote:It took us a couple of hours and then some to put it together, there were a couple of mistakes in the parts list, one of the 470mf caps is mixed up with one of the others - not sure if Gieskes has corrected this yet, also one of the ceramic capacitors around the topmost ic of the board is wrong, it is labelled as a 104 but needs to be something else, that's as good as my memory serves I am afraid! I will check over Gieskes pics in the morning if you aren't done by then.

Also the two capacitors in the bottom corner and one at the top which aren't listed can all be omitted from the build

I secured the header pin with bluetac when I got to soldering the hardware with the panel in place, this made it easy. Happy building!
I'm ready to start on my kit today. Can someone help me find the "parts list"? Is that in the kit or on his website somewhere?

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Roxell
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Post by Roxell » Thu Oct 30, 2014 2:47 pm

Go into his flickr album titled Assembling and click on one of the illustrations of the circuit board. It lists the parts underneath the photo.

https://www.flickr.com/photos/62323010@ ... 759797038/

I got my kit last week. Can't wait to start building it, but I've been busy.

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cephalopod
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Post by cephalopod » Thu Oct 30, 2014 7:24 pm

I barely missed out on the last of the first run of kits. Waiting on the next one now.

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makers
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Post by makers » Thu Oct 30, 2014 10:49 pm

Roxell wrote:Go into his flickr album titled Assembling and click on one of the illustrations of the circuit board. It lists the parts underneath the photo.

https://www.flickr.com/photos/62323010@ ... 759797038/
Thanks, the second half of that page wasn't showing in my browser.

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sync24
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Post by sync24 » Fri Oct 31, 2014 6:01 am

i fell foul of this and didn't scroll until i'd almost finished looking at the photos full size...!
:deadbanana:

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makers
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Post by makers » Fri Oct 31, 2014 11:23 pm

Watch the build video all the way through. I missed the fact that one pot is a different value :bang:

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rewordings
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Post by rewordings » Wed Dec 10, 2014 1:30 am

Looks great, I pre-ordered it.

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cephalopod
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Post by cephalopod » Thu Dec 18, 2014 6:27 pm

Looks like the second batch of kits is available.
Mine should arrive any day now.

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Eli
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Post by Eli » Fri Dec 19, 2014 6:12 am

FYI production is moving along smoothly and pre-orders will begin shipping very soon!

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Post by Guygz » Mon Dec 22, 2014 5:21 am

:eek:

hesitating between kit and assembled...
anyone had a big fail ?

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Eli
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Post by Eli » Mon Dec 22, 2014 6:07 am

Haven't heard of any failures with the kit personally but I will say from personal experience that building them is not a beginners project. You should be very well versed in kit projects before you attempt to build a 3trins. If so go for the kit! If you you aren't sure bleep labs is assembling them with expert quality and a warranty. They will be shipping shortly.

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davidh
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Post by davidh » Mon Dec 22, 2014 10:20 am

build a kit, definitely not a beginer's project
lovely device !
[video][/video]

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Cat-A-Tonic
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Post by Cat-A-Tonic » Mon Dec 22, 2014 5:46 pm

How much are the kits?

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waggles
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Post by waggles » Thu Jan 01, 2015 6:28 pm

Hey sorry to post build questions here, but there isn't a thread in the DIY forum.

Anybody have any clue as to what part(s) might need a closer look if my unit is only outputting the red osc through the video output? All osc's are running through the audio output, and when I switch the green or blue to "video in" I get a solid green or blue- just no waves visible from the oscillators... I've spent literally hours combing the board looking for cold joints, backwards diodes or transistors- nothin... I'm convinced it's a bad chip or transistor somewhere, but don't know enough to isolate which one(s). I've checked the separate R, G, & B outs from the header on the right side and red is the only one making it there too.

:sadbanana: :despair:

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bananeurysm
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Post by bananeurysm » Mon Jan 26, 2015 3:21 pm

Got a kit on order - has anyone tried adding the comparator he has on his website?

http://gieskes.nl/instruments/files/3Tr ... arator.jpg

http://gieskes.nl/instruments/files/3Tr ... ematic.jpg

I wonder if you can key in a shape with it?

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johyde
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Post by johyde » Tue Jan 27, 2015 7:29 am

Yeah, I'd be really interested in that too!

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Post by gijs » Tue Jan 27, 2015 1:38 pm

bananeurysm wrote:Got a kit on order - has anyone tried adding the comparator he has on his website?

http://gieskes.nl/instruments/files/3Tr ... arator.jpg

http://gieskes.nl/instruments/files/3Tr ... ematic.jpg

I wonder if you can key in a shape with it?
Here is a little video with the comparator 0:00 and another experiment at 0:29

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bananeurysm
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Post by bananeurysm » Tue Jan 27, 2015 2:45 pm

gijs wrote:
bananeurysm wrote:Got a kit on order - has anyone tried adding the comparator he has on his website?

http://gieskes.nl/instruments/files/3Tr ... arator.jpg

http://gieskes.nl/instruments/files/3Tr ... ematic.jpg

I wonder if you can key in a shape with it?
Here is a little video with the comparator 0:00 and another experiment at 0:29
Rad!! So I guess the answer is a big yes!

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johyde
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Post by johyde » Tue Jan 27, 2015 2:54 pm

Nice!

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colorsinwaves
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Post by colorsinwaves » Thu Jan 29, 2015 6:52 am

I wish it had a way to trigger on/off like a gate. For a club environment and doing live visuals, it would be better to flash on/off to audio or CV input. Otherwise it will constantly be light/bright. Doesn't seem this is possible to cut/gate signals. The inputs only affect the pitch.

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cephalopod
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Post by cephalopod » Sat Jan 31, 2015 5:27 pm

So I finished my kit, and everything works fine, except the range of the blue oscillator.
Turning the pot only moves through a very small range of frequencies compared to the other 2 oscillators. I looked over the board and didn't notice any mistakes.
Anyone with more experience than I have an idea what component might need closer inspection?

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Dirty_Bill
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Post by Dirty_Bill » Mon Feb 02, 2015 9:10 pm

cephalopod wrote:So I finished my kit, and everything works fine, except the range of the blue oscillator.
Turning the pot only moves through a very small range of frequencies compared to the other 2 oscillators. I looked over the board and didn't notice any mistakes.
Anyone with more experience than I have an idea what component might need closer inspection?
Does the button move the osc to audio rates (horizontal lines?)

I don't have the answer (other then recheck all the components/solder joints in that section...

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Dirty_Bill
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Post by Dirty_Bill » Mon Feb 02, 2015 11:05 pm

Bread boarded the comparator tonight. Works just as in GG's video...

Here's a still using the comparator and (what appears to me to be) a simple delay line I hacked up :hmm: . Sorry about the pixels, someday i'll get a better capture device than my phone...

Image

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Dirty_Bill
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Post by Dirty_Bill » Tue Feb 03, 2015 12:14 pm

colorsinwaves wrote:I wish it had a way to trigger on/off like a gate. For a club environment and doing live visuals, it would be better to flash on/off to audio or CV input. Otherwise it will constantly be light/bright. Doesn't seem this is possible to cut/gate signals. The inputs only affect the pitch.
I built a crude manual trigger last night on the breadboard, using just a FSR (Force Sensitive Resistor) to control the modulation of one channel. It's be pretty straightforward to make a switch/vactrol control that could be controlled by an external gate or envelope follower.

Here's a crude example (gated at the TICK)

[video][/video]

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