The 2021 Show Us Your DIY Builds Thread!

From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive!

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sduck
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The 2021 Show Us Your DIY Builds Thread!

Post by sduck » Fri Jan 01, 2021 12:18 pm

It's time for the new thread! Show us what you build!

Sorry, no first build of the year from me - I was all set to work and maybe finish something late last night, but my daughter came over and we watched cheesy new years stuff on tv instead.
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by autodafe » Fri Jan 01, 2021 5:05 pm

Let me start the 2021 thread with my just finisehd Erica Synth DIY system, it's been a long work in the next month or so, finished during the festive holidays ;-) (some details still missing, but 99% complete and working good ;-) )

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Re: The 2021 Show Us Your DIY Builds Thread!

Post by dot matrix madness » Sat Jan 02, 2021 5:10 am

TR909 Low Tom clone with mods: 100k poti to diminish the amount of noise in the attack and a CV input for tune.
The tracking response of the oscillators is about 1.2V/Oct, thus the original tuning voltage (100k) plus the CV input
(33k + 100k trimmer) are joined in a voltage adder (100k in the negative feedback loop) and then are reversed again.
BTW, the cardboard front plate is just temporary and too wobbly.
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by sduck » Sat Jan 02, 2021 11:52 pm

Knocked out the first little project in my new apartment workbench -
IMG_3114.JPG
I had been wanting a few dedicated EGs in euro, and these befaco ones fill the bill nicely. I have another one to finish, may get another two later.
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by hox3d » Sun Jan 03, 2021 6:11 am

Finally managed to find the motivation to finish this one: a CLee VC timer!
Was a bit annoyed by the amount of wiring it needs, so I waited over 9 months.

But in the end it works well and looks great.
DSC_0026.JPG
DSC_0025.JPG
Gosh, I hate wiring so much.
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by oniwaboni » Sun Jan 03, 2021 1:26 pm

working on a little arduino based fm-drone synth :) the case is based on an old antenna rotor device.
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by Stoneyards » Sun Jan 03, 2021 2:03 pm

I finished off the Lyra-8 with the flounderguts panel and expansions.

It was a fun challenge to wire it up in such a way that key components were accessible for service, and the main board could still be removed.

IMG_1275.png
IMG_1398.png
IMG_1400.png
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by ordaleem » Sun Jan 03, 2021 2:44 pm

Love seeing this stuff!

This module is fun, the Barton Bytewsie Operator. There's an optional expander PCB but I decided to make my own on stripboard since it's just ten buffers. I hand painted the panel too!

operatorfront.JPG
operatorback1.JPG
operatorback2.JPG
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by roglok » Mon Jan 04, 2021 3:26 pm

Stoneyards wrote:
Sun Jan 03, 2021 2:03 pm
I finished off the Lyra-8 with the flounderguts panel and expansions.

It was a fun challenge to wire it up in such a way that key components were accessible for service, and the main board could still be removed.


IMG_1275.png

IMG_1398.png

IMG_1400.png
Nice job. Love the capacitor parade on the rotary switches.

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Re: The 2021 Show Us Your DIY Builds Thread!

Post by Flounderguts » Mon Jan 04, 2021 11:49 pm

Stoneyards wrote:
Sun Jan 03, 2021 2:03 pm
I finished off the Lyra-8 with the flounderguts panel and expansions.

It was a fun challenge to wire it up in such a way that key components were accessible for service, and the main board could still be removed.


IMG_1275.png

IMG_1398.png

IMG_1400.png
So awesome to see a complete build! I love how you did color-per-voice, instead of color-per-function (which is what I did.) I'm eager to hear what changes you think can be made, once you have some time with it!
----------------------

Flounderguts

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Re: The 2021 Show Us Your DIY Builds Thread!

Post by analogmonster » Tue Jan 05, 2021 5:35 am

Stoneyards wrote:
Sun Jan 03, 2021 2:03 pm
I finished off the Lyra-8 with the flounderguts panel and expansions.

It was a fun challenge to wire it up in such a way that key components were accessible for service, and the main board could still be removed.


IMG_1275.png

IMG_1398.png

IMG_1400.png
Really cool! Nice Unit!

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Re: The 2021 Show Us Your DIY Builds Thread!

Post by zimo3000 » Tue Jan 05, 2021 3:35 pm

Hey hey, first post here :) I started my DIY modular about half a year ago, here's where I'm at now.
Screenshot 2021-01-05 at 21.28.31.png
Screenshot 2021-01-05 at 21.29.09.png
Screenshot 2021-01-05 at 21.30.13.png
It has the basics: a PSU, a couple of VCOs, a mixer, some passive multiples, an LFO, a VCF, a couple of VCAs and AR modules.
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by dot matrix madness » Wed Jan 06, 2021 3:11 am

zimo3000 wrote:
Tue Jan 05, 2021 3:35 pm
Hey hey, first post here :) I started my DIY modular about half a year ago, here's where I'm at now.
It has the basics: a PSU, a couple of VCOs, a mixer, some passive multiples, an LFO, a VCF, a couple of VCAs and AR modules.
Nice! It's hard to get more DIY than that.
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by batchas » Wed Jan 06, 2021 6:41 am

Stoneyards wrote:
Sun Jan 03, 2021 2:03 pm
I finished off the Lyra-8 with the flounderguts panel and expansions.
AWESOME :yay:
-----------------------------------
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by BadPixel » Wed Jan 06, 2021 10:04 am

Stoneyards wrote:
Sun Jan 03, 2021 2:03 pm
I finished off the Lyra-8 with the flounderguts panel and expansions.

It was a fun challenge to wire it up in such a way that key components were accessible for service, and the main board could still be removed.
Soo beautiful :yay:

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Re: The 2021 Show Us Your DIY Builds Thread!

Post by stoiker » Wed Jan 06, 2021 12:57 pm

I build some passive stuff lately
IMG_20210106_183728.jpg
IMG_20210106_183304.jpg
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by htor » Wed Jan 06, 2021 2:54 pm

stoiker wrote:
Wed Jan 06, 2021 12:57 pm
I build some passive stuff lately

IMG_20210106_183728.jpg
IMG_20210106_183304.jpg
that ring mod <3
what transformers are those? have been thinking about building one of these on stripboard lately.

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Re: The 2021 Show Us Your DIY Builds Thread!

Post by stoiker » Wed Jan 06, 2021 4:51 pm

htor wrote:
Wed Jan 06, 2021 2:54 pm
stoiker wrote:
Wed Jan 06, 2021 12:57 pm
I build some passive stuff lately

IMG_20210106_183728.jpg
IMG_20210106_183304.jpg
that ring mod <3
what transformers are those? have been thinking about building one of these on stripboard lately.
Go for it :) Transformers are 42TM018 - which seems to be a common choice.

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Re: The 2021 Show Us Your DIY Builds Thread!

Post by Octave b » Wed Jan 06, 2021 5:16 pm

Nice stuff here :yay:
Here are my latest Lego stuff, the Thomas Henry vco 555, his vc crossfader/vca and some pedals converted...
IMG_20210106_231250.jpg
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by htor » Wed Jan 06, 2021 6:01 pm

stoiker wrote:
Wed Jan 06, 2021 4:51 pm
htor wrote:
Wed Jan 06, 2021 2:54 pm
stoiker wrote:
Wed Jan 06, 2021 12:57 pm
I build some passive stuff lately

IMG_20210106_183728.jpg
IMG_20210106_183304.jpg
that ring mod <3
what transformers are those? have been thinking about building one of these on stripboard lately.
Go for it :) Transformers are 42TM018 - which seems to be a common choice.
ggreat, thanks :tu:

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Re: The 2021 Show Us Your DIY Builds Thread!

Post by analogmonster » Thu Jan 07, 2021 2:15 am

Octave b wrote:
Wed Jan 06, 2021 5:16 pm
Nice stuff here :yay:
Here are my latest Lego stuff, the Thomas Henry vco 555, his vc crossfader/vca and some pedals converted...
IMG_20210106_231250.jpg
Cool, the first LEGO Synth I've seen yet :eek:

But LEGO is nice, here my inductor winding machine with counter for my Moog (tm) 907 and 914 clones:
Spulenwickelmaschine_LEGO.JPG
See also http://www.analog-monster.de/mmt914_en.html
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by dot matrix madness » Thu Jan 07, 2021 4:01 am

analogmonster wrote:
Thu Jan 07, 2021 2:15 am
But LEGO is nice, here my inductor winding machine with counter for my Moog (tm) 907 and 914 clones:

Spulenwickelmaschine_LEGO.JPG

See also http://www.analog-monster.de/mmt914_en.html
The idea of realizing the counter by using a pocket calculator is awesome!
Regarding the number of coils need for those Moog clones I would have expected a more sophisticated machine.
(Did the 914 filter bank as well, thanks to analogmonster!)
For my winding machine I dug out some Fischertechnik parts from the
early eighties. That was before the more fancy parts from LEGO were introduced.
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Re: The 2021 Show Us Your DIY Builds Thread!

Post by Jarno » Thu Jan 07, 2021 8:10 am

analogmonster wrote:
Thu Jan 07, 2021 2:15 am
Octave b wrote:
Wed Jan 06, 2021 5:16 pm
Nice stuff here :yay:
Here are my latest Lego stuff, the Thomas Henry vco 555, his vc crossfader/vca and some pedals converted...
IMG_20210106_231250.jpg
Cool, the first LEGO Synth I've seen yet :eek:

But LEGO is nice, here my inductor winding machine with counter for my Moog (tm) 907 and 914 clones:

Spulenwickelmaschine_LEGO.JPG

See also http://www.analog-monster.de/mmt914_en.html
Pretty cool!

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Re: The 2021 Show Us Your DIY Builds Thread!

Post by Grumble » Thu Jan 07, 2021 3:05 pm


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Re: The 2021 Show Us Your DIY Builds Thread!

Post by Voltcontrol » Thu Jan 07, 2021 3:13 pm

zimo3000 wrote:
Tue Jan 05, 2021 3:35 pm
Hey hey, first post here :) I started my DIY modular about half a year ago, here's where I'm at now.

Screenshot 2021-01-05 at 21.28.31.png

Screenshot 2021-01-05 at 21.29.09.png

Screenshot 2021-01-05 at 21.30.13.png

It has the basics: a PSU, a couple of VCOs, a mixer, some passive multiples, an LFO, a VCF, a couple of VCAs and AR modules.
Cool! Which designs did you use?
Gaun Yersel!

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