If there’s one thing that we electronics engineers are precious to, it’s our test equipment. The instruments themselves can be extremely expensive, as all of that R&D effort has to be repaid on a much smaller user base than, say, a DVD player. The test probes themselves can also often come at an outrageous price. Take the oscilloscope probe, just about anyone who tinkers with hardware is familiar. It’s great for poking around, desperately looking for inspiration when you’re stuck with debugging, but you only have two hands, and it doesn’t leave room to press any buttons.
Hands-free probing solutions exist, but they can be expensive, fragile, or just painful to use. Sometimes you just want to solder a wire and leave the probe attached, hoping the ground wire doesn’t fall off and short something. We have seen many solutions to this, so here is another one that you can 3D print yourself, so that is almost free to do.
The two-part 3D printed assembly incorporates a pair of wires with a Molex 0008500113 spring-loaded terminal on one end, which can be finished with your choice of pins, headers, or just a pair of single wires. Once you’ve laid your desired wiring inside, simply glue the halves with a little cyanoacrylate and you’re done. Designed specifically around the Siglent 200MHz PP215, it is probably compatible with many other brands. Thingiverse only has STL files (sigh!), So it can be difficult to fit it to the exact dimensions of your probe, but the idea is at least a good one.
There’s no shortage of electronic probe solutions, and we’ve covered a few over the years, here’s a low cost current probe, 2 GHz open source range probe, and if you really want to get started, look no further. no further inspiration than the 2019 Hackaday SuperCon SMD Challenge.
Thank you [daniel] for the tip!