A step-by-step build of a working mini forklift using the CyberBrick kit, with practical notes on fitting parts, assembling the gearbox, wiring the motors, and choosing the right servo.
To follow along, download and print the CyberBrick Official Forklift and its instructions.
Project Summary
This project turns 3D printed parts into a functional forklift using the CyberBrick kit from MakerWorld. The build covers the gearbox, chassis, wheels, electronics, and the small details that make assembly go more smoothly. A separate controller build completes the project.
Helpful Tips From This Build
Choose flexible treads
I used Bambu Lab AMS TPU with a Shore hardness of 68D for the tank treads. It was probably too stiff and made the forklift drive roughly. My daughter switched to the supplied rubber wheels, which were easier to control. A softer TPU around 95A may work better for printed treads.
Follow the fastener steps
Some bolts may not appear to hold anything together. In this kit, a bolt and magnet can secure an access cover, so install each fastener when the instructions call for it.
Give super glue room to dry
Super glue can make a mess. Protect the work surface with newspaper or a magazine, and let glued parts sit for about 30 minutes before continuing.
Check the gearbox fit
The metal shafts did not fit easily into the gearbox holes. I used an M2.5 drill to open them up. I drilled all the way through, but that did not cause a problem on this build.
Lubricate the gears
Use the supplied grease on the gearbox gears. I once missed this step and ended up with a frozen motor.
Connect the motors to the opposite side
Plug each wheel motor into the receiver module on the opposite side of the vehicle: left motor to right plug, and right motor to left plug.
Use the 360-degree servo for the lift
The CyberBrick kit includes different servo types. Use the 360-degree servo for the lift; the other type will not do the job.
Final Thoughts
The detailed instructions and carefully designed forklift make this a great introduction to combining 3D printing with hardware. I've used hardware in printed projects for more than eight years and still learned something from the magnetic access cover. Next up: building a controller to bring the forklift to life.
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