Quote Originally Posted by Buba b View Post
Yeh ive done alittle bit of gunsmithing
I've got a gun... http://www.robinhewitt.net/Falkirk.wmv

Do not worry about not having enough power, your motors are already way too powerful.

1 Nm of torque onto a 5mm pitch screw gives you 280 lbf of thrust for cutting.

If your gantry weighs 50 lbs that 1 Nm would give you over 5 G's of acceleration for the rapids.