Three-Axis-Router / 3D-Printer / CNC

This is a Three-Axis-Router.
I designed it during my bachelor thesis.
It acts as a 3D-printer and CNC-mill/drill, but other tools like a laser are possible.
The printhead is detachable and can be replaced by a mount for a rotational tool.
For milling I used a machine manufactured by proxxon with an extension, but by modifying the attached .scad-files you can design a mount for your own device.

In the current configuration the machine reaches a maximal speed of 24mm/s. At higher speeds it loses steps. Furthermore it is very noisy. You can treat these problems by using better stepper drivers than I did.

The frame has to be strengthened by MDF-plates. Otherwise it cannot resist the forces.
Further instructions of assembly you will find in the dreiachsenrouter.scad.
The machine should be able to handle a tool with the weight of 1kg.

I use an Arduino-Mega2560 controller with a ramps-shield, running Marlin. The configuration is attached.
As display mount I modified a design