Case for VoltLog's VoltLink USB to serial adapter / programmer.

Required hardware:

• VoltLink revE board (I'm not sure if other revisions are compatible)
• 4x M2.5 x 3mm threaded inserts
• 4x M2.5 x 10mm screws

A variant bottom is provided that you can screw into directly without the inserts (untested).

A lot of FDM printers can't do the legends on the top justice, so it's provided both with and without them. There's a slot in the bottom so you can always see the header legends on the PCB.

Frequently cycling the “VoltLink connector” on the top might be a little inconvenient with the lid on due to how deeply shrouded it is. I only use the 0.1" header myself so I didn't put a lot of thought into it.

The PCB should be 1.6mm thick.

You can use silicone or glue to add diffusion to the light pipes.

The example in the photos is a v35 and was printed using JLCPCB's MJF nylon service. I haven't actually tried to print this with FDM, but it should do OK. The screw counterbores and the USB-C connector slot probably require tiny supports.

Links:

• Videos about VoltLink on VoltLog's YouTube channel
• VoltLink GitHub repository (Gerbers + BOM)
• Purchase VoltLink pre-assembled from VoltLog's Tindie shop

Change history:

• v35 – 2025-07-30 – Removed unnecessary evacuation holes. Adjusted dimensions for threaded inserts. Deepened and widened top screw-hole bores.
• v31 – 2025-01-18 – Initial release.