Other other machine

[jdurand]

No idea if anyone's tried it or how feasible it is, but the slicer writers would probably send someone to visit me late at night...

The Polar Pendulum printer.

Effector is suspended by a stiff arm from a ball joint at the top center of the printer, it's threaded through a ball thread so it can be raised/lowered by a stepping motor.

Two other motors swing the pendulum back and forth.

A true polar printer, prints in arcs.

Effector weight wouldn't be as much of an issue since the X-Y motors would only be dealing with inertia, they wouldn't have to also lift the weight of the whole assembly like in a delta.


Hey, I never said I was sane!

[Mac The Knife]

The first thing that came to mind, was the big pendulums in museums that would draw patterns in the sand, showing the effects of the earth's rotation.

[Kevinvandeusen]

http://Www.polar3d.com" onclick="window.open(this.href);return false; is in the neighborhood of your thinking. I watched it at CES, pretty interesting to see work.