finally upgrade for trapezoidal screw for 3Drag/K8200 V3

thingiverse

You can swap out the standard M8 screw for a trapezoidal screw, 10x2 D. The motor must remain stationary and installation is straightforward. For more information, visit this Italian blog: http://www.lillia.net/hack-barra-trapezoidale-asse-z-per-3dragk8200/ Original Bill of Materials: * 1 trapezoidal screw, 10x2 D * Printed parts * 1 coupler (5-10mm), for motor-screw * 2 trapezoidal nuts (one for moving the carriage and the other to secure the screw above) * 1 ball bearing (10mm internal - 31mm external) Edit, 03/11/2015: New Version The support has been updated. It is now symmetrical. I have used a handmade trapezoidal nut in the new design. The revised bill of materials: * 1 trapezoidal screw, 10x2 * 1 trapezoidal nut, 10x2 * 2 M5 nuts * Printed support * 1 flexible coupler You can purchase these items on eBay: http://www.ebay.it/itm/-/221930860532? Edit, 15/06/2016: New Version (V3) The anti-backlash system has been improved. The old flexible coupler has been eliminated and the screw is now attached directly to the motor. For more details, see the photos. We have redesigned everything from scratch to enhance performance. You can purchase the upgrade kit on eBay: http://www.ebay.it/itm/Kit-Upgrade-asse-z-3Drag-K8200-3D-printer-/222132535174? Changelog: * 11/08/2015: Add new photos, bill of materials * 03/03/2016: Add new nut * 15/06/2016: Add new files, change everything