GEEETECH G2/G2s Idler Pulley (plastic version) 624ZZ bearing

SPL files to produce 26, 27 and 28 tooth idler pulley's for GEEETECH G2 and G2s plastic version.

All the hard work was done by others I used the configuration tool and OPEN SCAD to create the SPL files. Source here http://www.thingiverse.com/thing:16627 (no idea how to link as it is not found in a search which is limited to 6 results)

26 tooth is probably too thin while 28 tooth may cause the belt to bind on the head of the 3mm bolt that holds the metal U at top of the tower (will be tryi