The Rods are made of CarbonFiberTubes, Magnetjoints with PEEK - steel ball contact for low (almost no) friction.
The three axes are made of alu profile 40x40mm
Equipped with 650mm preloaded IGUS linear guides for movement without clearance/backlash
The high resolution steppers have 400 Steps / 360°
optical endstops, belt tensioning via the uppermost pulley.
The alu parts were welded and afterwards machined on a CNC for maximum precision.