Get the build guide & files from here : https://cults3d.com/:1728761

Contact me at : [email protected]

*Hardware used:

metal pipe dimension : 1.5 x 0.75 inch
6mm threaded rod
10k potentiometer
plywood
3D printed parts
screws
DB9 male plug
Nylon elastic rope
Spring details :
Outer diameter : 28 mm
Free length : 80mm
Wire dia: 2mm
End : square and ground
Active coil : 8
Total coil : 10