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servalproject / mesh-extender-documentation

Documentation for the Serval Mesh Extender devices
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DB25 connector needs threaded holes for easy assembly #2

Open thomotron opened 4 years ago

thomotron commented 4 years ago

The current DB25 connector has plain, threadless holes that are quite frustrating to screw the hex receptables into, since you have to hold a nut behind it with one tool and screw in with another. The inner-most screw is almost impossible because there is a large capacitor sitting in the way.

Instead of using this connector, consider one with pre-threaded holes much like the current DB15 connector that sits alongside it. It would save a lot of frustration trying to get the board firmly attached to the housing.

gardners commented 4 years ago

If you can find one that is IP67 rated, we'd love to use it. But so far, the one we are using is the only one we know off. I totally agree with how annoying it is. A 3D-printable jig that can be inserted to hold the nuts in place might be a good tactical solution?

thomotron commented 4 years ago

I've managed to find one through Mouser (part, datasheet), though these have mounting pins on either side which the PCB doesn't have holes for. A 3D-printed jig might just have to do.

gardners commented 4 years ago

We could revise the PCB to accommodate it, but for thte meantime, the jig is the solution I think. Leave this issue open, so that it can be dealt with whenever we have opportunity to revise the PCB.