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My files for the Giant building block version of Lego Technic / Expert Builder model Tractor 851 (952 in USA)
Updated 14/02/2019 - Added missing part 3149 hinge.
Check out the assembly video on my YouTube channel for more details of how I built the massive tractor tyres!
Files are provided as-is.
STL Files at 1:1 scale, these files have been designed to be scaled five times larger and may work at other scales. Many of the parts are generated from the supplied SCAD files. These SCAD files were my tweaked versions of projunk files. I added fillets to the top of the pins and altered some dimensions / tolerances. Original projunk files can be found here:
There may be errors in the parts document, or missing STL files, if you find a problem let me know via comments!
The STL files are zipped up into their various colors. There is a PDF document containing the required quantity of each part. For more information on the original kit and build instructions visit here:
Most bricks are printed at 15% infill.
Axles are printed at 50% infill
Gears and pins at 25% infill
Tyres are 15 to 20%
Assembly video with build details!
Previous to the Tractor I made a Bulldozer!