DIY Five Side PCB Test Fixture
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- เผยแพร่เมื่อ 14 ก.ค. 2023
- This is the test fixture I built for end-of-line testing of the moteus-n1. It can probe 5 sides of the board and is actuated with a single manual lever.
Read more: jpieper.com/2023/07/15/5-side...
mjbots things used:
* pi3hat: mjbots.com/products/mjbots-pi...
* power_dist: mjbots.com/products/mjbots-po...
* moteus-n1: mjbots.com/products/moteus-n1
TBT7J3XEMOQR5GLY - วิทยาศาสตร์และเทคโนโลยี
Amazing 😍
Excellent work. I work at a FANG company and even they don't understand how important these bed of nails fixtures are.
Awesome work! I really like the side mechanisms, well done!
This is epic. I love test fixtures and this one does not disappoint!
Excellent work!
Looks awesome and quite involved.
That's a very cool clamping/locating fixture!
Welcome back!
Thanks! As the global component shortage continues to ease, the videos will return!
Looks awesome!
you are awesome
This is excellent! How did you go about designing the channels for the motion you needed from the lever arm? I'm working on a project where i'd like manual actuation to result in motion on a different axis similar to your design. I've designed for several years but designing a similar mechanism is challenging. Well done.
The channel path to keep the moving plate fixed is pretty easy to determine from geometry. I constructed two of those for the start and end of the swing, then just did an eyeball smooth between them for the actual motion part.
dude, this is awesome. still writing the music for these videos?
Not for this one! Maybe someday I'll be that on top of it!
Very cool but i am not sure how long that would last on a factory floor. Also why did you decide to use plugs for the connectors and have to go in from different sides? Why not just do the classic top and bottom approach and poke the pins?
A non-zero likelihood failure in assembly is that the right angle connector joints are cold or not soldered at all, which was previously only caught by customers. The plugs are used because of the GH connector design, for which no off the shelf probes will mate well. The r4.11 fixture is just a clamshell one.
Based on usage so far, I'd expect it to be good with only minor maintenance for on the order of 10k boards. It is easy enough to redesign and/or reprint parts that wear to extend the life beyond that. Not high volume, but high enough for mjbots.
This is great, how long did it take you to finish it?
Hard to say, it was in progress for many months, but only worked on in short spurts. Probably a week or two of time total?