4x 18650 Cell parallel case with M4 screw contacts
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I made a 4x 18650 Cell holder or a battery using M4 screws, nuts and some kind of connector (in my case copper wire)
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Since I have not found anything like this (maybe I searched wrong) I have made a simple 18650 case using additional M4 screws, nuts and some connector. if possible, using a custom bus bar ? I have yet to experiment with the best way to do this so your input would mean a world to me
It takes around 20g of filament depending on your settings
It can be used as a standalone case
I have made the “middle connector” with adhesion pad so it doesn't get knocked off the plate, you can also use brim but this seemed better for me
I would not recommend having the “middle connector” fully filled since it can crack when screwing, I used 2 walls and 0.45 wall thickness and it worked fine. the “contacts” can be filled fully, it doesn't affect anything.
I printed this with PLA, but stronger and more heat resistant material like PETG would be recommended for stressful application
I will be glad for any feedback, recommendations or remix.