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Projects => Build Reports => Topic started by: dawson on February 29, 2020, 01:35:58 AM

Title: My first "modular" build- REDRUM reverb/delay (PPCB Arachnid)
Post by: dawson on February 29, 2020, 01:35:58 AM
Hello, fellow tone-seekers/makers and noise enthusiasts- I'm very excited to share my latest build, a PPCB Arachnid.

(https://i.imgur.com/Q4D9GzZ.jpg)

The Arachnid is a (an??) FV-1 based multi-effect that reads 8 pre-programmed effects off of an EEPROM IC, and I've added a simple mod switch (labeled "A-B") to alternatively access the internal programs in the FV-1.  I purchased an EEPROM loaded by PPCB with 8 various delay and reverb effects that all sound top-notch.

I accept no credit for the pattern I've etched here, nor the color scheme, nor the name "REDRUM," for that matter..you know where it's from.

(https://i.imgur.com/wzU48QY.jpg)
(https://i.imgur.com/OXr4cwa.jpg)
(https://i.imgur.com/1viYCzk.jpg)

I'm getting more and more comfortable soldering surface-mount stuff.  I'd still like to be a lot better, but I'm glad I've started so that I can improve, so I'd encourage anyone on the fence about surface-mount components to go ahead and give them a try.

Now, "Why?" you might ask, did I build this pedal up-side-down? & what's the deal with the connectors?  Well, inspired by the modular Eurorack format, and a bunch of awesome modular builds around here, I'm planning to construct a rack-style pedal-board with all the patching and power self-contained.  I'm using the bottom-plates for regular aluminum enclosures (instead of cheaper plain sheet-metal alternatives) because I'm able to load the effect into an empty box and use it as a stand-alone pedal as seen here, AND, SmallBear sells bottom-plates for a reasonable price.
Anyhow, more on that when I've built more than one of these and finish my prototype rack.

Oh, and a couple shots of my two-tone LED build, as requested last time I did an equally silly LED set-up:

(https://i.imgur.com/mpyV7dM.jpg)

The Arachnid is a fancy effect, so I figured it should have a fancy indicator light- orange 5mm LED's on the bottom, and a red 8mm LED on top

Thanks for looking!
Title: Re: My first "modular" build- REDRUM reverb/delay (PPCB Arachnid)
Post by: Caedarn on February 29, 2020, 04:39:12 AM
Really nice work, inside and out. I'm intrigued by your modular pedal concept. 
Title: Re: My first "modular" build- REDRUM reverb/delay (PPCB Arachnid)
Post by: cooder on February 29, 2020, 06:57:18 AM
Very cool and top notch! Great etch too of course!
Will be interesting to see photos of your modular approach to board when you have a few lined up together!
Title: Re: My first "modular" build- REDRUM reverb/delay (PPCB Arachnid)
Post by: gordo on February 29, 2020, 10:45:33 AM
Very cool ideas across the board on this one!
Title: Re: My first "modular" build- REDRUM reverb/delay (PPCB Arachnid)
Post by: dawson on March 01, 2020, 06:43:05 PM
^^^Thanks for looking!  I'm going to work on the rack today, once I'm finished oogling at what everyone else has been up to on the forum.