Basic movement is possible on all axes now, as the drivers are adjusted. Laser engraving is also possible.
Built the machine with http://www.thingiverse.com/thing:843399 and http://www.thingiverse.com/thing:119814 right away. Included my own X and Y endstop holder http://www.thingiverse.com/thing:968175. I used stainless steel conduit with 25mm OD for the most part because I got it cheaper on eb** than aluminium conduit in the local hardware stores. One pipe and the Z pipes are curtain pipes from regular steel. Just do a search and you will certainly find some nice construction pipes.
For some reason my main frame came out well but the X and Y pipe have an angle of >90 deg. Before using the machine I have to perform the calibration routine described in http://www.thingiverse.com/thing:918871 but without the necesssity for using the square check thingies because my zero corner (the one where the z is in the pictures) was chosen so that I can simply press the steppers that are standing off towards the corner. With steppers enabled I can hone the machine properly then and hopefully do something useful with it ;) The positive thing about this is possibly that more rigidity is in the construction.
Working area is about 53x33cm. Can't wait to actually make it work for me! Thanks for sharing this awesome project!