Description

This is the full documentation for building a tractor with the PolyBriX construction kit.

Printing instructions:

Walls count: 3
Infill pattern: Rectilinear
Infill density: 15%

No supports.

I've used PETG, but PLA will probably work as well.

Assembly instructions

The parts should be assembled according to this picture:

Note: For the larger tractor wheels ( v2 ) - print the tractor_wheels_v2.stl file

For the simple wheels ( v1 ) - print the tractor_wheels_v1.stl file

Version 2 wheels are composed from two parts, an inner and an outer part, and are assembled as in the following picture:

Assembly steps:

Note: If you're using version 2 wheels, please replace G2 and G3 wheels with their corresponding version 2 wheels, in the following steps.

   1. Clean all the contact areas of each part
   2. First, assemble the 3 hex bricks as shown in the picture
   3. Attach the A1 add-on, for the cabin
   4. Insert the S shafts in their corresponding holes, in the body, assembled at step 1
   5. Insert the C1 cap and the G1 gear into their corresponding shafts, by pressing them firmly
   6. Insert G3 into C1 and G2 into G1, also by pressing them firmly
   7. Turn the whole mechanism on the other side and proceed adding C1, G1, G3 and G2 as described before
   8. Attach the 4 A2-C2 pairs by first inserting A2 into C2's small shaft and the press the whole thing into each wheel's socket

Now you have a PolyBriX tractor to play with!

A PolyBriX tractor

0.2mm layer, 2 walls, 15% infill