4 18650 cell thingamajig

thingiverse

Here is the rewritten text: Basic casing allows spot-welded cells in 1S4P or 2S4P configurations to be protected by drilling a hole for wires to feed through and solder directly onto the spot weld. To print this, you'll need to flip it so that the rounded parts face downwards towards the bed. This design requires no support material. The hole where the wire passes is only one layer thick, enabling bridging - simply use a screwdriver to punch the hole open and feed in the wires. The casing fits snugly onto the two outer cells, but I found it slightly looser for the inner two due to reduced support between them. To address this, I may add a small wall separating the inner cells if necessary.