热收缩密封件用于SOTABeams陷阱

Heatshrink glands for SOTABeams traps

2024-04-20 01:45:43

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Summary

I designed these 3D printable glands in OpenSCAD to allow SOTABeams traps to be easily waterproofed using standard glue-lined heatshrink. SOTABeams recommend liquid electrical tape, but I find this a bit messy and using heat shrink tubing provides a neater finish as well as giving additional protection.

I recommend threading the antenna wire through the gland and the 2 smaller strain-relief holes on the PCB. The hole in the side of the gland can then be used to fill the internal space with adhesive to prevent water ingress and secure the grommet to the PCB. The trap can then be sealed into 39mm diamater (3:1 shrink) glue lined heatshrink, which will seal nicely over the glands.

The attached STL has ~2mm diameter holes for the antenna cable. The .scad file is available in the github repo.

Would love to hear if anyone else makes use of these.