Greg's Wade Accessible Belt Drive Extruder

prusaprinters

<p>**I just uploaded a newer version of this design please check it out first: <a href="https://www.thingiverse.com/thing:456025">http://www.thingiverse.com/thing:456025</a></p> <p>This is a mash-up of the Greg's Wade extruder and Terawatt Industry's belt drive extruder. It brings the zero backlash advantages of the Terawatt 00str00der design together with a heavy duty, rock solid design.<br/> Video can be found here: <a href="http://youtu.be/cY4r6K0P9Qk">http://youtu.be/cY4r6K0P9Qk</a><br/> 2013.12.05 Added 1.75mm filament option<br/> 2014.05.30 Corrected belt size</p> <h3>Print instructions</h3><h3>Category: 3D Printer Extruders Instructions</h3> <p>Components Required:<br/> 65T plastic (carbide) GT2 pulley w/8mm bore, flanges, set-screw<br/> 17T aluminum GT2 pulley w/5mm bore, flanges, set-screw<br/> GT2 belt, 2mm pitch, 88T, 196mm length, 6mm-with, fiberglass-reinforced, closed-loop<br/> Pulleys and belt can be sourced from stock drive products, Terawatt industries, ebay, etc.<br/> Hobbed Bolt<br/> 608 bearings, 3 minimum (more could be used as spacers on the hobbed bolt)<br/> 2x M4 x 55 SHCS<br/> 2x springs<br/> 1x M8 axle or stud for idler pulley<br/> 4x M3 SHCS for stepper mount<br/> 4x M3 washers for stepper mount<br/> misc other M3 / M4 hardware<br/> Assemble as normal for Greg's style extruder. Use the slots in the stepper mount to tension the belt. Be sure to recalibrate your E steps after installation. You may also have to reverse the direction of your extruder stepper in your firmware. (I did)<br/> Note the photos shown illustrate assembly using Terawatt Industries' elastomer bumpers for the idler tension springs. I'd highly recommend using steel springs instead, they seem to work much better.<br/> Enjoy quieter, backlash-free printing!</p>