Mashed Wades Geared Nema 17 with Adrian's hot end so I could check out Adrian's new hot end ( http://reprap.org/wiki/Geared_extruder_nozzle ) and another hot end by Tim. It is 14mm wider to allow 2 4mm bolts to attach to trapped 4mm nuts. This is only the extruder block the rest needs to be download from Wade\'s original extruder or other derivatives there of.Warning - after some testing the bolts got too hot and pulled through the extruder block / redesign on the way.I had to replace the 40mm bolt that sticks up on the gear side of the x-carriage with a 25mm to keep it from interfering with the gear. The rest pretty much bolts up like you would expect.