TL;DR: I’m looking for beefy, ruggedized card edge connectors to make upgrade slots for a hexapod robot. Know of any good ones or have any better ideas?
So, I've built myself a little hexapod robot. It's pretty nifty so far; I've gotten some walking algorithms down, and most importantly, I’m enjoying the build. I’m thinking about designing a new control board, however. I am hoping to use card edge connectors to make some expansion slots for it, so that I could develop modules that I can drop in for added or upgraded functionality. Conceptually, I want it to feel like the hexapod has a bunch of little Gameboy cartridges on its back, which can be removed and replaced on a lark. It seems like a fun idea, but I’m concerned about the reliability. I’ve heard that they’re only good for about 50 mating cycles. Does anybody know of any ruggedized card edge connectors that can handle a lot of mating cycles?
Some other general notes: I’ve designed a 3d printable housing that allows me to secure the modules with a single M3 screw, so I’m not too worried about vibrations knocking the modules out of place. The housing also should also prevent me from inserting the cards backwards. I’ve also considered using dual rows of headers, like an Arduino with vertical shields. The only issue is that I cannot find right angle headers which mount in such a way that the board is “in between” the headers. The only headers I can find are the style that extends off with a right angle from either the top or bottom of the board. I’m not sure if that makes sense, so I can elaborate, if needed. Does anybody have any other suggestions, feedback, or comments?
Thanks for reading, and thanks for your input!
