My version of YRUDS bowden extruder for RichRap's 3DR delta

thingiverse

My version of YRUDS bowden extruder for RichRap's 3DR delta BOM: Mount: 2x M4 10mm screew 2x M4 hammer nut 2x M4 washer (optional, I did not use them) Idler: 1x 626 bearing (19x6x6mm) 1x M6 25mm screew 2x M6 washer 1x M6 nut Spring mount: spring ID 4mm 1x M4 screew (I used 44mm long, you should use good one for your spring) 2x M4 washer (to secure ends of spring) 1x M4 washer 1x M4 nut Stepper mount: 3x M3 x 13mm screews 3x M3 washers Hobbed bolt: hobbed bolt for YRUDShttp://mojreprap.pl/index.php?route=product/product&path=42&product_id=165 2x 686 bearing (13x6x5mm) some M6 washers to align bolt and gear (I used 4 small and 1 big) Big gear: my version: http://www.thingiverse.com/thing:213808 1x M3 nut 1x M3 screew, I used M3 x 8mm socket headless screew Small gear: 15 tooth HTD 3M 1x M3 screew, I used M3 x 5mm socket headless screew Belt: 195mm (65 tooth) HTD 3M 5mm widehttp://shop.polybelt.com/195-3M-05-Rubber-Timing-Belt-65-Tooth-B195-3M-05BNG.htm Pipe connector: for OD 6mm ID 4mm pipe (I have connectors with 13mm OD thread)