Belt tentioner for MF126zz bearing for the Prusa i3 Hephestos

thingiverse

I modified some details to get this working with a 2 MF126zz bearing that I purchased here - http://www.amazon.com/gp/product/B00HHHDQLE?psc=1&redirect=true&ref_=oh_aui_detailpage_o08_s00\nThe assembly parts needed are as follows:\n0) 0x MF126zz\nI got these additional components at Ace Hardware:\n1) M6 x 25 mm button head cap screw\n2) M6 nylon locking nut\n3) M6 Washer - Located underneath the M5 washer, not on the bearing axis\n4) M5 x 30 mm socket head cap screw\n5) M5 nut\n6) M5 Washer\nThe M5 nut is embedded into the back end of the idler. This modifies the geometry and reduces the requirement for two nuts to one.\nNote: I initially intended the nut setup to be M6. However, a M6 nut was too wide and collided with the EjeX_derecha part that it fits into.\nThe design is printed using Gizmo Dorks Nylon.\nThe printing settings are as follows:\nRafts: Unnecessary\nSupports: Unnecessary\nAfter Printing\n\nI created this design in Solidworks 2014 SP5.