Thanks yyh1002 for the brilliant design and the clear instructions. It was a pleasure to print and assembly was easy.
Actually, we made two. One for 3.0mm filament and the other for 1.75mm filament. We quickly designed up a mounting bracket to fit our Ultimaker Original to allow us to change filament sizes relatively quickly and easily.
We purchased the kit of metal parts from ebay. The printed bits were done on a ProX 500 SLS in nylon.
3D Systems - Powder Powder - Nylon