This is a simple nickel strip dispenser with strip "brake" on the mouth.
Assemble with snap on cover and/or M3 4.2x5mm melt inserts and M3x10 countersunk screws.
I made these with my needs in different sizes (if some important size is missing, please request)
3mm (box is actually 5mm deep, but bottom is adjusted to house 3mm strip)
7mm - 10mm is for basic straight nickel strip
27mm fits for most straight and angled 2-row ladder 18650 strips and angled 2-row ladder for 21700
31mm fits for straight ladder 21700 strips
Cover obiously fits for all models