Revised MK3 Extruder and X Carriage for MK2s parts

thingiverse

This is a remix of Vekoj's Revised MK3 Extruder and X-Carriage modified to utilize the hobbed pulley's that come with the MK2s instead of the bondtech extruder gears. Several individuals have reported issues with the bondtech gears, making this an attractive alternative that is less expensive, possesses slightly higher torque, and offers approximately 25% more esteps/mm. The STL files I've included are the parts required to be modified from [Vekoj's original design](https://www.thingiverse.com/thing:2843264). These include the idler, a pin to hold the idler bearing, the extruder body, and the x-carriage. It is possible to attach the new extruder body to Vekoj's original x-carriage; however, the top two screws will be slightly misaligned. Although it will function properly, the appearance may appear somewhat awkward. I have also included step and iges files of the full extruder assembly. Components needed beyond the printed parts: 1x [Hobbed Pulley](https://shop.prusa3d.com/en/3d-printer-parts/126-mk2-extruder-hobbed-pulley.html) or [E3D Version](https://www.reprap.me/e3d-hobb-goblin-5mm-id-drive-gear.html). ***IMPORTANT*** This must be an 8mm OD x 5mm ID hobbed pulley. 2x [5x10mm Washer](https://www.amazon.com/TOPINSTOCK-Stainless-Steel-Washer-Screw/dp/B071VBGHLL/ref=sr_1_2?s=industrial&ie=UTF8&qid=1539394153&sr=1-2&keywords=5x10mm+washer&dpID=310oKUMITgL&preST=_SY300_QL70_&dpSrc=srch). Used as a spacer for the idler bearing. 1x [MR105ZZ Bearing](https://www.amazon.com/gp/product/B00ZHSTKCE/ref=oh_aui_search_detailpage?ie=UTF8&psc=1) ***Update 10/17/2018*** - Added an pre-hollowed, SLA version of the extruder body. - Fixed the extruder idler holder to no longer require supports.