The file 'Duplo Compatible Car Base 2 X 4 3D Printer Model' is (f3d,stl) file type, size is 2.1MB.
When I printed this nice Jeep https://www.thingiverse.com/thing:1826496
I was missing the base for it.
I designed the base in two version: all printed and version with a 3 mm rod for the axle.
Both work fine, I'm actually surprised how well the all printed version does, wheels spin as crazy.
Updates:
31.7.2017 Added version with bottom connectors. Use wheels from allprinted version.
Duplo_Car_Base_2_x_4_all_printed.f3d | 774.2KB | |
Duplo_Car_Base_2_x_4_all_printed.stl | 1.2MB | |
Duplo_Car_Base_2_x_4_all_printed_with_bottom_connectors.stl | 613.8KB | |
Duplo_Car_Base_2_x_4_with_metal_3_mm_rods.f3d | 271.9KB | |
Duplo_Car_Base_2_x_4_with_metal_3_mm_rods.stl | 1.2MB | |
Duplo_car_base_all_printed_body.stl | 628.0KB | |
Wheels_fix.stl | 646.6KB |