BatteryPack Holder 4x6 single cells

2018-07-05: Added version with strengthening outer supports, giving a more rigid overall structure. I may prove more challenging if soldering connections, but should be fine is spot-welding. Update based on user feedback.

Note: NOT TEST PRINTED
Employs bridging so your printer will need to be calibrated to bridge well.
Experimental alteration of original battery holder design by Paul Kennett.