Spring PCB Holder
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This Instructable will be for making spring PCB holder.
You will need
23mm wide and 64mm high with 2.5mm thick wire. I got my from spare part store for agricultural machines. The one specific is used as valve spring for tractor motor.
6mm thick aluminum rod
20mm magnet - http://www.banggood.com/4pcs-N52-205mm-Counterbore...
You will need a 3D printer, thread cuter, and a saw to cut aluminum. Also a 5mm chamfer screw to attach the magnet.
Print the Enclosures
Attached are 3 parts that you will need to print out on your 3D printer.
Cutting Threads
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Use M6 thread cut on the aluminum rod.
Start to Half Assemble It
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Thread the shaft in the bottom 3D printed part. The printed part hole is slightly smaller and the aluminum rod will self thread the 3D printed part.
Attach the Magnet
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Use screw to attach the magnet. My screws were a little to long. I cut them to length so that the aluminum rod and screw have little room between them and can be tightened.
Cutting to Lenght
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Assemble and add the top cap. Mark on the aluminum rod the top of the cap.
Cut the rod on the mark and cut threads there to.
Assemble
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Connect all parts and that is it!