Prusa I3 spring loaded idler extruder

thingiverse

this is a derivative of Prusa I3 Extruder PG35l stepper with 24mm mount spacing (http://www.thingiverse.com/thing:81140). The reason I made a derivative, is that the filament guide hole I was uncertain having it clamped between the idler and the main extruder body would work correctly, as I don't have my printer built to make these to try. The 3d model of the springs I just got of a spring company so its up to you what springs to use, but for future reference if you have any issues with getting 3d models of springs go to (www.assocspring.co.uk) you can download the models of there products ps the holes in the groovemount to fix the This will fit a jhead with the the tophat of the jhead measuring in depth 5mm with the groove mount fixture also the fan duct attaches to the groove mount, my groove mount will be made from aluminium i have put this under work in progress OUTDATED**i designed the hole for the hotend for rev 1 e3d and the change the hole spacing my advise is go into freecad open the freecad file and go into the tree a and change the hole parameters Instructions 22/04/2014 this is going to be redesigned I would like some thoughts and input as its my own design which I run on my printer at the moment ok i printed the fan mount 0.4 layer height but my printer wasn't much calibrated, also my clips for glass and my bolt configuration my fan holder duct clashed into it so if anyone wants to develop that be grateful, update you need to funnel out the hole which is after the gear so filament can easily be guided in