A clean, functional enclosure for the GM328 Transistor Tester. This design is a universal fit for the most common PCB layouts, supporting both portable battery-powered use and external power setups.
Features
- Dual Power Ready: Internal space for a 9V battery plus cutouts for USB and DC power jacks.
- Complete Access: Precision cutouts on the bottom for easy access to testing headers and I/O pins.
- Modular Design: The Display Lid is optional. The case is fully functional without it, but adding it protects the screen and improves the visual appearance.
- No AMS Required: Optimized for single-filament printing.
- Adaptable: Designed to fit most GM328 implementations. If your specific board version needs a slight tweak, please leave a comment with the dimensions.
Hardware Requirements
- 4x M2.6 Screws (6mm–10mm length) to secure the PCB to the base.
- Friction Fit: The lid stays in place via friction; no glue or extra hardware required.
Print Settings
- Profile: 0.20mm layer, 2 walls, 15% infill, no supports.
- [optional] Enable "Ironing" on all top surfaces for a smoother look.
Assembly
- Connect the 9V battery and place it in the integrated battery bay.
- Align the PCB over the four pillars and secure it using the M2.6 screws. Slightly better screws are not a problem, holes are ~2.4mm.
- Optional: Snap the lid into the top opening. It is held by friction for easy removal if needed.
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