Quantity   Component name
12 × SHF16 Mounting brackets for 16mm calibrated steel rods on which linear bearings travel, aliexpress, total approx 20 EUR
12 × SBR16UU Linear bearings for 16mm rods, open on one side as these were a bit cheaper, aliexpress, total approx 50 EUR
2 × Calibrated steel rod, 16mm, length 635mm on this rod x axis linear bearings travel
2 × Calibrated steel rod, 16mm, length 535mm on this rod y axis linear bearings travel
2 × Calibrated steel rod, 16mm, length 250mm on this rod z axis linear bearings travel
1 × M10 threaded rods for leadscrews. 2 meters approx total two meter piece should be enough, 1x ~650 mm, 1x ~550 mm and 1x ~270 mm pieces
4 × Shaft coupler 5mm to 10 mm from ebay, you need 3 of them, or 4 if you use stepper on both ends of x axis
3 × Delrin M10 nut A basic anti backlash nut, from ebay http://www.ebay.com/itm/LOW-COST-ANTI-BACKLASH-DELRIN-NUT-FOR-M10-1-5MM-PITCH-CNC-LEAD-SCREW-3-pieces-/160978966039?pt=LH_DefaultDomain_0&hash=item257b181617
8 × KFL000 (10mm romb bearing), aliexpress, about 16 EUR
4 × M5 threaded rod (z axis tension) ~250 mm a threaded rod for structural stability of the frame, this one is for z axis.
8 × M5 threaded rod (y axis tension and bottom frame y direction) ~535 mm a threaded rod for structural stability of the frame, this one is for y axis.
7 × M5 threaded rod (bottom frame x direction tension) ~635 mm a threaded rod for structural stability of the frame, this one is for x axis.
1 × A healthy amount of bolts, spacers and nuts. NOTE - the list is not final, will be updated once first prototype is done zip ties, bolts, washers and nuts and other materials useful but of which I have not accounted for at the moment explicitly.