Instructions
Either use one of the supplied STLs, or to generate your own jig:
- Open jig.scad in OpenSCAD
- Set the parameters for the size of the jig. The main parameters are:
- num_cells: the number of cells you wish to spot weld
- cell_diam: the diameter (mm) of the cells (18 for 18650s)
- height: the height (mm) of the jig - higher is stabler, but takes longer to print
- wall_thickness: the thickness (mm) of the jig wall; 1mm works well for me
- Save the file, render and generate the STL
- Print and use. Set your cells into the jig, lay a nickel strip over the top, and spotweld away!
Printing
Works well for me in cheap PLA. No supports or raft/brim required. I used enough walls that there was no infill needed (just solid walls) - this printed quickly and produced a functional part.
Tags
The author marked this model as their own original creation.