SPC Serial data connector for calipers and Indicators (DIY DRO)

thingiverse

This is a flexible filament connector for SPC serial ports commonly found on digital calipers and indicators. It's perfect for those who want to build their own DIY DRO or simply read the data off the calipers over serial. **Update**: Check out #EspDRO, which uses an ESP32 and this connector to stream data over WiFi and serial: https://github.com/MGX3D/EspDRO. Watch a video of it in action: https://www.youtube.com/watch?v=P8z91OxXOTo It's designed for a precise fit: I highly recommend printing this out of flexible filament (TPU) only. It seems to work incredibly well for this purpose. In my opinion, this little connector works better than the flimsy commercial connectors that came with my DRO. That's because it's shorter - it only sticks out 10mm - and the ribs on the side and top provide a secure grip when unplugging. To assemble, you'll need some 24AWG wire (0.4-0.6mm diameter wire with 1.2-1.4mm sleeve diameter). It works with both solid wire and stranded wire (with solder coating for the contact area). Simply strip about 20mm of wire, wrap it around the tip, tighten it, and cut the excess. Then, tuck it in - you can add a dab of super-glue if needed, but it seems to work just fine without it.