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Anyone has any ideas about PCB wire strain relief?
1004 1 Jan 17.2020, 17:43:02

Hello, I am working on a new end-stop switch for my 3D printer (heavily modified reprap prusa), and the first version I made had 3 pin through hole headers, but I would like to get rid of those and solder the wires directly onto the board instead to keep it smaller and more clean to look at, and also have less things sticking out from it to make it as small as possible.
I attached a picture of my current idea, but it might not be all pcb houses that are able to make those inner slots in the pcb to loop the 3 wire ribbon cable through.

Anyone here got an idea to what good alternatives there are?


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A****min

Feb 13.2020, 17:14:41

Normally the pads are quite fragile and can very easily be lifted from the board if you pull the wires by accident. Why not use the through hole pads? You already have slots to pass the wires so the dimensions will be virtually the same.

The slots are a good idea. You could also use 3 separate holes, one for each wire if you want to have them separate and secure.

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