A simple video of spinning dials, causing them to spin on screen as well:
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Acrylic Chassis: Several choices here
- scroll saw - you can download a scroll saw pattern (03-POTB-ScrollSaw Pattern (A4).pdf or 03-POTB-ScrollSaw Pattern (letter).pdf). Glue it to some 3mm Acrylic and cut it out.
- your own laser cutter - download the parts outline (PP-POTB-Acrylic Cut Parts.eps or 00-POTB-Acrylic Cut Parts.cdr). Cut them in any 3mm sheet stock
- purchase a precut set - a mini kit for this project is available (here) - this includes the laser cut pieces as well as the required nuts and bolts ($25 Free Shipping to the USA and Canada)
- 3mm x 10mm bolt (x8)
- 3mm x 15mm bolt (x14)
- 3mm nut (x30)
- Potentiometers (8mm or 1/4") (x5) (all electronics) (any value will really work but for reliability and lower power consumption between 1K and 10K is a good idea)
- Switches (1/4") (x3) (all electronics)
- Red Ring Connectors (#8) (x35) (allelectronics)
- Single Row Headers (10pins) (all electronics)
- Wire (about 10 feet)
- Screwdriver (Philips)
- Wire Strippers and Crimpers
- Needle nose Pliers
03-POTB-ScrollSaw Pattern (A4...pdf(595x842) 27 KB
03-POTB-ScrollSaw Pattern (le...pdf(612x792) 27 KB
PP-POTB-Acrylic Cut Parts.eps(729x682) 119 KB






































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I am in the process of building this switchbox and was wondering why you chose the three on-on (SPDT) switches when the schematic shows that only one side is being used. Wouldn't some simple on-off (SPST) switches work for this?