Servo driven tracked rover w/suspensions (self tightning belts).

thingiverse

3d printed tracked rover from Lynlim Nesneros on Vimeo. There are ment to be glued on some rubber square`s at the flat side of the tracks You need: Filament Glue Self tapping screws with a wide head M5 screws (do not use any countersink screws on this project) Bearings 16x 5x10x4 MR105ZZ 2x standard size servo w/mod for continus rotation (I used Towerpro 966MG) Start by fasten the front to the middle part, use 2 self tapping screws and glue. Fasten servo with servohorn tap heading forward. Screw in the back parts thrught the hole in part. center and fasten the servohorn to gear, fasten gear to servo. screw on side skirts use 3mm filament, burn the end and stump them flat. do this at both sides, make it tight. Assembly bearings to back part, suspension pins and wheels. Sand suspension pins to fit the chassi, they have to turn pretty free. use grease. secure the back suspesion pin with a wide head screw. Fasten wheels to suspesion pins. Fasten back wheel (all wheels are assembled bearing turning out) Set in the springs, easiest if you set it in the chassi first. Assemble belt, use the filament trick. 33 tracks per belt. you can change belt tension by changing wheels to smaller or bigger ones. (depence on what springs you have) assembly the last track when belt is stretched on place, and last chain over the gear, makes it easier Ready to connect to RC, arduino or what ever you like :) Print Settings Printer Brand: Ultimaker Printer: Ultimaker Original Rafts: No Supports: No Resolution: 0.2 Infill: 25 Notes: You may have to rotate some of the stl`s How I Designed This Instructables Instructables http://www.instructables.com/id/Servo-Driven-Tracked-Rover-Wsuspensions-self-Tight/ you need 16 bearings MR105zz 5x10x4mm http://www.ebay.com/itm/10PCS-5x10x4mm-Miniature-B... 2 standard size servo http://www.ebay.com/itm/MG996R-Metal-Gears-Digital... 6 m5x25 http://www.ebay.com/itm/10x-Durable-M5-Titanium-DI... 2 selftapping screws with wide head M4,2x25 http://www.ebay.com/itm/M4-2-Phillips-Truss-Head-W... 2 selftapping screws phillips M4,2x13 http://www.ebay.com/itm/4-2mmx13mm-Thread-8-Philli... for the selftapping screws you can use screws for wood or plastic. they do not need to bee exact the length i linked to, those are just the length i used :)