Mulbot - The Mostly Printed 3D Printer

prusaprinters

<p>The Mulbot is an open source Mostly Printed 3D printer that features a 3D printed frame, bearing blocks, and drive systems. The original goal for this project is to further push the Rep Rap concept and to 3D print more than just the frame. As a result there are no purchased bearing assembles or drive systems on this printer.</p> <p>This printer utilizes square rail type 3D printed housings for linear bearings. Since the bearings and rails are printed they have been integrated into the frame members. 4.5mm G100 Stainless Steel bearings balls are used to recirculate through the bearing housings to reduce fiction and to provide preload to remove bushing slop.</p> <p>All three of the printers drive systems are 3D printed as well. The Y-axis is driven by a 3D printed herringbone gear rack and pinion. The combination of 3D printed drive and idle pulleys and a TPU belt drive the X-axis hot end carriage. While the Z-axis utilizes 3D printed trapezoidal lead screws and nuts to translate the hotend vertically.</p> <p><strong>Specifications</strong><br/> Print Surface:<br/> 8-1/2” Square Floating Glass Bed</p> <p><strong>Print size:</strong><br/> 175mm x 200mm x 150mm (dual fan shroud)<br/> 145mm x 200mm x 150mm (surround shroud)</p> <p><strong>Required Print Volume:</strong><br/> 250mm x 210mm x 210mm<br/> The original Mulbot was printed on a Original Prusa MK3</p> <p><strong>Filament Used</strong><br/> Everything is designed to be printed out of PLA with the exception of the TPU timing belt.<br/> Uses less then 2kg of filament.</p> <p><strong>Non-Printed Parts</strong><br/> SeemeCNC EZR Extruder<br/> E3D V6 Lite Hotend<br/> Ramps 1.4 Mega Controller<br/> Capricorn XC 1.75 Bowden Tubing<br/> 5630 LED Strip Lights<br/> 150W 12V Power Supply<br/> IEC320 Inlet Plug with Switch<br/> Blower Fan</p> <p>See it printing here: <a href="https://youtu.be/Ob4yieqQDis">https://youtu.be/Ob4yieqQDis</a></p> <p><strong>STL's and more information</strong><br/> STL's and more information can be found on the thingiverse page. Sorry, I want to keep everything in one place.</p> <p><a href="https://www.thingiverse.com/thing:3432384">https://www.thingiverse.com/thing:3432384</a></p>