Originally Posted by
peteeng
Hi Eye - There's lots of details to work through. Buy a motor with a brake for the Z axis. If the power is off the brake is on. You can also buy a brake separate if you have a two axle motor... Its wasting money going the epoxy route, may as well buy a bigger steel tube. Dual gantries are tricky, as one becomes dominant when the gantry deflects so at any point of time only one is resisting the deflection. So the dual gantry is inefficient, better to use one large member. May as well use a solid plywood section, will be damper and stiffer then the multipart steel thingy. Peter