im made this lead screw for lego axles in thienkercad to make a cnc machine that actualy can wood engraving
simply bij usign wood and steel rods to improve the strengt of the macine-frame...
im stil working on this project on mij home to let handicaped people engraving nam board to sel it and give the money the supervisiors of the siloah organisation.

if there problems of improvement feel free to let it my know in the comments.