'80 – Retro Italian Supercar Toy

Hi everyone!

I'm back with this project, an italian '80s supercar with a running engine! My nephew loves it!
Designed from scratch with a single large piston to avoid small parts, so kids can play safely.
Easy to print and even easier to build, no screws needed! Make sure your print bed is perfectly clean for optimal adhesion.

Printing Tips for X2D owners:

For the chassis I used an external red spool in the main extruder and AMS 2 with black and silver in the auxiliary for better resolution and faster overall time. For the other parts, I used black in the external main extruder and silver in the auxiliary with AMS.
To do that, you simply switch the two ptfe tubes before the buffer. After that, go to the filament settings and change the AMS to the auxiliary extruder.
If you want the same colors check the BOM, all bambulab filament. The model orientation in the print profile is optimized for better tolerances and resolution.

Assembly Tips:
Once everything is printed, please check that the rear axle and connecting rod turn freely without friction. It is possible you will need to rotate them a few times to loosen them up a bit. Then push the piston onto the rod and check it moves freely too. At this point, you can assemble everything into the chassis, including the wheels. Then check that everything is working smoothly. Follow the last step for the front Axle.

Possible issue:

If the wheels are too tight for the axle, sand down or trim a very small portion of the edges on the build plate side, as shown in the the last photo. Anyway, putting them on and off will loosen them a bit by itself.
If the piston is seizing up, do the same with the chassis cylinder: shave off a little bit of the surface where the supports are attached
Anyway, I added a 'Large tolerance' print profile for these issues, making the axles, rod, and piston a little bit smaller.

I hope you all enjoy my work and that your kids love playing with it!

Meco