18650 battery holder parametric

I have been using a 3d printed 18650 holder for a while to charge my batteries using bench top power supply but they were prone to losing contact with the battery. So I designed this one that uses a test pin on one end and m3 bolt on the other. 

This design uses a 28mm * 1.4mm pogo pin but the scad file is included so you can modify it for other pins.