About this 3D model

Yes more is better - when it comes to bearing holders anyway. Tired of snapping those pesky bearing holders when you tighten the screw one turn too many? well I know I am so this design uses four individual bearing holders keyed into position on a rigid x-carriage platform. No laminar separation or splitting issues here. Also features twin fan mounts fore and aft for my fan holders and VGA fans like here: http://www.thingiverse.com/thing:29158 The four other holes in the top of the platform are for 5mm LEDs -connect 4 blue or red ones in series directly across 12 volts - like your fan supply for example. * you don't really expect this to be unbreakable do you? 19 September - Added fixed belt grips to give clearance from the 8mm x-axis rods.