Switch to change direction

[tonyfoale]

I am also in the process of building a ring roller to roll the 60Dia x 2 walled pipes for my excosceletal car I am building. I do not have an additional motor for this machine so was planning to use the motor of the hacksaw for the roller. The roller will need forward and reverse...so that is my motivation to change the direction easily.

OK, that makes sense. I really need to make a roller for exhaust pipes but I'll just fit a large wheel and do it manually. That saves on gym fees.

I am following the advice given to me to improve the saw.

I have done an analysis of the forces and moments of both the sliding type like Olderdan and the rocker type like yours. When I get a moment I'll write it up and post it here. It makes clear the layout that will give down force on the cutting stroke and up force on the return. It is very easy to design a saw which is far from optimum.

Please show me how you wired your single phase motor.

Will do.