FDM RC Car — Every Pandemic Needs a Passion Project
2020
The most recent iteration of this design hasn’t gone anywhere for the last two years, so it’s currently sitting in CAD purgatory until I’m bored again at work and decide to pick it up again. To introduce a bit more challenge to the design and more efficiency and reliability to the printing process, all the parts are printed without support.
Mistakes where made on this prototype — It’s not nearly as polished or as robust as I’d hoped.
Probably the most interesting thing about this here car is the drivetrain. It incorporates some cool mechanisms to transfer power to the wheels via a differential, but this is really only a “test fit” version, a useable drive mechanism will need to be much more robust than these tiny PLA parts.
Because of the size of the differential, the parallelogram linkage for the suspension couldn’t be centered on the differential output, so the middle of the U-joint has a telescoping shaft.
Partially assembled front steering and drivetrain
A view of the differential pre-assembly