Oliver Cletrac OC3 (modular)
Description
This is my more modular version based on Haggy_23 (created by) and Ettena (remixed by) Cletrac OC3 1:6 scale. https://www.thingiverse.com/thing:4159135 https://www.thingiverse.com/thing:4875535 For visual modifications I used pictures from internet. Found one image with cabin and used it as blueprint for cabin. Most parts are assambled with M3 bolts and nuts. All details for parts and assambly quide you can find in freeCAD file. I used ZGB37RG 60rpm 12V motor, but for better torque I recommend lower rpm motor. For terrain like grass, my motors are to weak. Parts with fewer details I used 0.3mm layer height. Smaller parts printed with 0.2mm or 0.15mm layer height. Printed parts: 22 x original parts (no modifications) 133 x modified & new parts Mechanical parts: 2 x M2 10mm bolt (roof light) 2 x M2 nut (roof light) 14 x M3 6mm bolt (12 pcs to motors) 2 x M3 8mm bolt (seat spring) 12 x M3 10mm bolt 17 x M3 12mm bolt 6 x M3 12mm bolt (without head) 8 x M3 14mm bolt 6 x M3 16mm bolt 78 x M3 18mm bolt (62 pcs for chain) 9 x M3 20mm bolt 3 x M3 25mm bolt 8 x M3 40mm bolt 79 x M3 nut 70 x M3 nut (self locking) (62 pcs for chain) 18 x M4 14mm bolt 18 x M4 nut 2 x M6 40mm bolt (countershunk) (for lead wheel) 2 x M6 nut (self locking) (for lead wheel) 2 x ZGB37RG motor 2 pcs 2 x 10x10x220mm aluminium square tube 10 x 10x2mm round magnet 6 x 13x5x6mm ball bearing Notes: * It takes around 160 hours to print (if only 1 printer is used) * Parts are designed for 0.3mm or 0.2mm layer height * Some parts are printed with brim * Longest print time for one part is around 9 hours (if 0.3mm layer height is used) * I used A2 stainless steel bolts & nuts * Some original parts must be glued together, I used "4 minute" epoxy. * oc3_print_mod_y_part_005 adds some strenght but is not directly necessary. Designed as place holder for servo mount (future upgrade). * You can use 5050 SMD leds for roof lights * chain_link_mod_y_left.stl & chain_link_mod_y_right.stl are based on original design. But this type chain caused to much wobble. For better stability use oc3_print_mod_y_part_072.stl & oc3_print_mod_y_part_073.stl
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