[HN Gopher] Shmoergh Hog - The making of a simple analog synth
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       Shmoergh Hog - The making of a simple analog synth
        
       Author : b6dybuyv
       Score  : 194 points
       Date   : 2024-12-30 20:07 UTC (4 days ago)
        
 (HTM) web link (www.peterzimon.com)
 (TXT) w3m dump (www.peterzimon.com)
        
       | JKCalhoun wrote:
       | "Lunatics like Ben Eater", ha ha.
        
       | chaosprint wrote:
       | great job and great writinng! one of the most beautify synths!
        
       | snops wrote:
       | This is really well documented with lovely schematics, and the
       | link in the github to the proper "korg style" toggle switches [1]
       | on AliExpress is worth the read.
       | 
       | The code [2] is very nice as well, showing how clean a bare metal
       | Pi Pico project can be.
       | 
       | [1] https://www.aliexpress.com/item/32958319752.html
       | 
       | [2]
       | https://github.com/shmoergh/hog/blob/main/boards/midi2cv/src...
        
       | ano-ther wrote:
       | Cool project, very nicely done.
       | 
       | And Ikea Bittergurka as enclosure is a great idea for my next
       | project.
        
       | mobeets wrote:
       | This is amazing and super inspiring. I love how such a
       | professional looking enclosure is actually a repurposed Ikea
       | flowerpot---brilliant.
       | 
       | Does anyone know how one would print the black text on the
       | flowerpot? I have an acrylic enclosure from a project but could
       | never figure out how to get text printed on it.
        
         | djmips wrote:
         | Maybe using a cutter like the Cricut or similar - cut it in
         | vinyl and stick it on?
        
         | zimo3000 wrote:
         | Hey Mobeets, Zimo (author/builder) here.
         | 
         | The text on the flowerpot and the wooden box was "printed" with
         | toner transfer method. It's a super simple process: you print
         | the text flipped with a laser printer and use toner transfer
         | solution and rub the text on the surface.
         | 
         | I used this solution for it (hope it's fine to share it):
         | https://ideahobby.eu/product/10556/express-transfer-20ml-p32...
         | 
         | Here's a video how it's used:
         | https://youtu.be/tsc7cHJ98pQ?si=cZ0b0W0ajJjQE1gf
        
       | turnsout wrote:
       | Gorgeous cases! And I love the breakdown of the process. Super
       | inspiring work!
        
       | zimo3000 wrote:
       | Thanks a lot for your kind words everyone! Zimo (author/builder)
        
         | xrd wrote:
         | Is there a forum where people can discuss using this synth?
        
           | zimo3000 wrote:
           | So far the best place to discuss things is under the build
           | guide:
           | 
           | https://www.shmoergh.com/hog-build-guide/
        
       | xrd wrote:
       | What are the prerequisites for building one of these boards? Can
       | I read the GitHub and start building? Or, do I need to do some
       | reading about CircuitJS, and tools like that?
        
         | zimo3000 wrote:
         | To be honest, this build is pretty advanced and I wouldn't
         | recommend as a first synth DIY project.
         | 
         | In short I assume anyone who wants to build this synth
         | generally understands the concept of subtractive synthesis,
         | basic electronics, can read schematics and PCBs (using KiCad)
         | and has experience in soldering. I've written a build guide
         | which has a "prerequisites" section as well as details on how
         | to order PCBs and assembly steps: https://www.shmoergh.com/hog-
         | build-guide/
         | 
         | The schematics might also be a good resource to dig deeer and
         | understand the building blocks of an analog synth.
        
           | xrd wrote:
           | I just watched the video KiCad Introduction
           | (https://www.youtube.com/watch?v=l9b_6WLemmg). It's only five
           | minutes and I feel like I'm now "PhD Level."
           | 
           | All joking aside, any suggestions on a fun starting project?
           | I do understand subtractive synthesis (software side) and
           | music production and your project looks so fun, but
           | definitely out of my league. As a fan of yours, I'm
           | interested in any suggestions you have on jumping in. But,
           | I'll keep reading about HOG until then.
           | 
           | Thanks for the warning: "The author, host, and all people
           | associated with these web pages disclaim any liability for
           | damages should anyone be killed or injured while working on
           | these projects..." I don't want to die.
        
       | Aldipower wrote:
       | As a danish and german speaker, the name is hard to get used to,
       | because it conflicts with all the lexical rules existent in
       | nordic germanic languages. This name, lexically, does not make
       | sense at all, also you won't find any word in nordic languages
       | written like this. "shm" just does not exist and "oe" also is
       | very very rare in northern germanic. On the other side in western
       | germanic, "oe" is the "o". So this gets even more weird. Haha.
       | Nevermind! :-D I love such projects. Very well done! Looks
       | beautiful. Sound is not mine, but that is a question of my bad
       | taste.. ;-)
        
       | shadowpho wrote:
       | Surprised there are so many through hole parts. Why not SMT if
       | going through jlcpcb?
        
       | oriolid wrote:
       | Cool project! I understand mass producing these doesn't much
       | sense, but would a build kit that has just PCBs with SMD
       | components in place and the rest of work left to user work? I
       | know someone who did a similar project and it turned out that
       | when ordering PCBs, single one is really expensive compared to
       | even a tiny batch.
        
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