Active DIY Guitar Sustainer for about $20!

This is a project I’ve wanted to do for a long time and finally picked up the parts to pull it off. The STL file for the spacer in the driver: Very small amp with on/off/volume control: =ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 32 gauge enameled wire: =ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 AAA battery pack: =ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1