The 2020 Show Us Your DIY Builds Thread!

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

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cartertools
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by cartertools » Wed Dec 09, 2020 2:13 am

5 of the newish Barton Musical Circuits modules done, with clear departure from any sort of coherent faceplate design theme on my part. 2x3 buffer (multiple), 4 in 3 out logic, inverter, binary counter (divider) and dual set/reset latch. Jacks mount on the PCB instead of needing hand wiring like some of his designs.
bartonnew120820.jpg

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analogmonster
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by analogmonster » Thu Dec 10, 2020 2:47 am

My System 55 Clone has grown a bit: A Minimoog oscillator bank clone in Moog Modular style and an output module for mixing, providing line and headphone outputs:
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by waldenpotato » Thu Dec 10, 2020 2:30 pm

I just finished the Oakley Sound Systems analog sequencer. It was fun to build - I'd recommend it.
File_024.jpeg
File_038.jpeg

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htor
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by htor » Fri Dec 11, 2020 2:42 pm

cartertools wrote:
Wed Dec 09, 2020 2:13 am
5 of the newish Barton Musical Circuits modules done, with clear departure from any sort of coherent faceplate design theme on my part. 2x3 buffer (multiple), 4 in 3 out logic, inverter, binary counter (divider) and dual set/reset latch. Jacks mount on the PCB instead of needing hand wiring like some of his designs.
bartonnew120820.jpg
lovely panels, mate

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cartertools
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by cartertools » Sat Dec 12, 2020 2:35 am

Thanks, I enjoy making them. Here's a couple more finished today.
barton12112005.jpg
htor wrote:
Fri Dec 11, 2020 2:42 pm
lovely panels, mate

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VauxFlores
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by VauxFlores » Sat Dec 12, 2020 9:11 am

Some fluorescent plexiglass Ciat-Lonbarde inspired lovelies from my neck of the woods:
IMG_2318.JPG

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audioCTRL
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by audioCTRL » Sat Dec 12, 2020 9:57 am

Dual pingable filter for the Buchla
IMG_1320.jpg
back side
IMG_1325.jpg
it blinks :party:
IMG_1329.jpg

Brian2020
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by Brian2020 » Sat Dec 12, 2020 11:31 am

audioCTRL wrote:
Sat Dec 12, 2020 9:57 am
Dual pingable filter for the Buchla
IMG_1320.jpg
back side
IMG_1325.jpg
it blinks :party:
IMG_1329.jpg

Killer panel art/graphic. Is that a specific piece that you had printed onto the panel, if so do you know the name of it? I’d like to look it up.
Any demos of it in action? I’d really like to hear what it sounds like.

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audioCTRL
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by audioCTRL » Sat Dec 12, 2020 1:47 pm

I got the panel from Vedic Scape years back with some modules I bought.
The filter itself is my own design based on the Serge 1973 filter with some tweeks. It sound like this:

The upper part is doing the bassdrum thing.
The lower part is pinging away randomly...
Last edited by audioCTRL on Sun Dec 13, 2020 9:38 am, edited 2 times in total.

ub1k
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by ub1k » Sun Dec 13, 2020 4:43 am

The super sixteen sequencer

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prphnc
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by prphnc » Sun Dec 13, 2020 4:00 pm

Bended Boss DS-1

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Philthy
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by Philthy » Sun Dec 13, 2020 8:53 pm

autodafe wrote:
Fri Dec 04, 2020 3:56 pm
This morning I assembled my TSynth (DIY Teensy 4.1 Polysynth)
A nice build that lasted about 1.5 hrs. A surprsingly rich 12-note polysynth for about 150-170 euros

Just finished mine. Great synth for the money.

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Re: The 2020 Show Us Your DIY Builds Thread!

Post by Ginko » Thu Dec 17, 2020 4:49 am

audioCTRL wrote:
Sat Dec 12, 2020 9:57 am
Dual pingable filter for the Buchla
IMG_1320.jpg
Love the panel art!

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Re: The 2020 Show Us Your DIY Builds Thread!

Post by Ginko » Thu Dec 17, 2020 5:08 am

This has been my lockdown project so far - there are a few more modules that didn't work out so well, and I have a new multi-function modulator in the works. Four modules are finished and two are nearly done, bottom of the rack is Voltage Memory by Meng Qi.

Image
Image

Panel designs are a bit incoherent, some a bit rubbish. I have been trying different things. The monarch butterfly was drawn in Eagle!! Some things have been edited in Inkscape then imported as .svg files converted to polygons - lately I have been playing with generative graphics using Processing and that's been pretty fun, I will work with that more in the future I think.

Image
Image

This was an early generative design test (Fields)
Image

All modules are through hole and use easy to source parts and everything is released as open-source hardware. I would like to offer partial kits in the new year, I have made minijack panels as well and they fit Eurorack, the aim is to be accessible to beginners - but as the market is pretty diluted, I am mostly just doing it for myself :guinness:

By the way, can you no longer upload pictures to MW? I haven't logged on in ages and everything has changed!

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justin3am
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by justin3am » Thu Dec 17, 2020 12:11 pm

Wow, those panels look great and they go well with the Voltage Memory. I bet they would look nice in a BugBrand system too.

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Re: The 2020 Show Us Your DIY Builds Thread!

Post by Ginko » Thu Dec 17, 2020 12:35 pm

justin3am wrote:
Thu Dec 17, 2020 12:11 pm
Wow, those panels look great and they go well with the Voltage Memory. I bet they would look nice in a BugBrand system too.
Thanks! Yes, that wasn't intentional actually, my Voltage Memory has been gathering dust for the last couple of years and I remembered it a couple of days ago, such a good module!!

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analogmonster
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by analogmonster » Mon Dec 21, 2020 2:46 am

Another interface module for my sudio and jamming...
Details
mmtcp4aFront.JPG
current_20201220.jpg

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soup
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by soup » Mon Dec 21, 2020 3:53 pm

A couple of Ken Stone classics shrunk down for frac...
DSCF2455.jpg
DSCF2469.jpg
DSCF2473.jpg
DSCF2480.jpg
:rastanana:

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hox3d
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by hox3d » Mon Dec 21, 2020 5:39 pm

soup wrote:
Mon Dec 21, 2020 3:53 pm
A couple of Ken Stone classics shrunk down for frac...
:rastanana:
Cannot wait to see the whole system with brushed aluminium.
I'm used to the blue, but it does indeed look great like this.

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Re: The 2020 Show Us Your DIY Builds Thread!

Post by Stan Pete » Wed Dec 23, 2020 5:07 am

Korg Volca Modular – Buchla like Port – Erica Synths DIY Voice Card

If you want to build your own - i attached a PDF for the connections
Korg Volca Easel Card reader.pdf
(45.02 KiB) Downloaded 26 times
IMG_20201117_124224.jpg
IMG_20201214_230736.jpg
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IMG_20201117_124316.jpg

Korg Volca Modular – Buchla like Port – Erica Synths DIY Voice Card



Korg Volca Modular - Buchla like Port - Erica Synths DIY Voice Card

Hello everybody,

actually the project was planned for the christmas holidays but then I finished building it.

A 44 pin connector was installed here to accommodate the Erica Synths DIY Voice Card. A 56 pin connector is built into the Bucla Easel.

The Volca Modular has 50 patch points. I left out the 6 from the SPLIT and the external inputs. GND is on board. I still have 1X free. Maybe for power for an IC, maybe Kastle integration .....

I created an Excel table for the pin assignment so that I don't get confused.

Don't leave the ribbon cable too long - there is very little space - I had to leave out the screw in the middle.

Maybe I'll create a sticker for the card because I've changed the patch point assignment.

You can also see the LEDs in the lighter colors through the T8 potentiometer. I'm still wondering whether I shouldn't drill out the white dots. Did a test once. It works with the very bright LEDs - the one from the LPG is a bit weak, you can only see it at the right angle.

Greetings
Stan Pete

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Re: The 2020 Show Us Your DIY Builds Thread!

Post by elmegil » Wed Dec 23, 2020 7:17 am

WOW!

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Re: The 2020 Show Us Your DIY Builds Thread!

Post by Ginko » Wed Dec 23, 2020 8:07 am

Stan Pete wrote:
Wed Dec 23, 2020 5:07 am
Korg Volca Modular – Buchla like Port – Erica Synths DIY Voice Card

Greetings
Stan Pete
Welcome to the forume, and that's a serious project, well done!

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dot matrix madness
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Re: The 2020 Show Us Your DIY Builds Thread!

Post by dot matrix madness » Thu Dec 24, 2020 5:59 am

Stan Pete wrote:
Wed Dec 23, 2020 5:07 am
Korg Volca Modular – Buchla like Port – Erica Synths DIY Voice Card
Awesome. Not only for the wiring. Stripping ribbon cable without a tool is such a PITA.
Licenced to solder since 1993

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Re: The 2020 Show Us Your DIY Builds Thread!

Post by diode_destroyer » Thu Dec 24, 2020 3:52 pm

And they even work... yay!
ez1073.jpg

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Re: The 2020 Show Us Your DIY Builds Thread!

Post by fragletrollet » Mon Dec 28, 2020 7:32 pm

justin3am wrote:
Thu Nov 26, 2020 12:04 am
fragletrollet wrote:
Wed Sep 09, 2020 5:12 pm
As promised...

Image
Holy shit, this will definitely be my next project!
Prepare yourself for a fair bit of work!

If I was to revise my choice, and direct outputs weren't a must, I'd choose the CAPI summing mixer:

https://capi-gear.com/catalog/index.php ... 17_219_220

More circuitry (color!) on each channel, (presumably, from previous experience with CAPI kits) MUCH more comfortable to build, scalable... and as I use mainly stereo sources, all the wiring in the DR2402 does at times seem superfluous as I just leave the channels panned hard L/R, and if I really need a mono channel, I need to calibrate with a test-tone because of potentiometer tolerances. And in the end I want faders.

I wish CAPI did a stereo version of the VC528 ML2 with a front panel connection to an external faderbox (where I could use high end P&G stereo faders) as an alternative to the standard mono (Elma switch) version. I guess an alternative (for me) would be to use the sumbus32 with the channels I need (precise) stereo volume control build a version with 2x 2S-LA + a stereo switched set of hp/lp and stere fader, which would be pretty much exactly the same (as long as you include the transformers). Another solution would be the JLM DINGO, and use the THAT VCA between the 2520's for the actual volume control, which would probably have more consise L/R tracking throughout the fader/pot travel. There's also some really cool volume control IC's that I'm eager to try out....

The plan is to add an AUX send box I've "designed" to the DR setup, see here if interested:

https://www.proaudiodesignforum.com/for ... 5212e0698f

http://www.jlmaudio.com/forum/viewtopic ... 1a0c5d9ca7
diode_destroyer wrote:
Thu Dec 24, 2020 3:52 pm
And they even work... yay!
I built a stereo set of Bluzzi's 1084 clones, and a couple of AML 1073 line amps... Are these based on the AML kit?
Here are mine:
my DIY 1084's
my DIY 1084's

My plan was to slowly accumulate a vp28's or ML528's for each of the DR2402's channels.... but the USD $ is getting out of hand (or rather, the norwegian Krone ain't that :75: anymore), and with the brits and their brexit project really makes these AML modules so much more economically feasable. So it might turn out as something like an API/Neve hybrid mixer in the end :hmm:

Sorry for ranting, but it's crazy to see how people on this forum have synth-setups in the thousands and no interest in the rest of the signal chain.... but yeah, it's a synth-forum.... :sstorm:

:cloud:
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Some more friends
Some more friends
sorry for the dust
sorry for the dust

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