Supplement your Blueprint Build Kit or Class Pack with the Blueprint Hand Crank 5-Pack. Power your builds by hand with ease using these cranks. With a shaft of 50mm and a circular crank movement of 100mm. Utilize by fitting a shaft through the lock insert, securing with a 0.5x Pitch Shaft Collar for easy operation.
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The 50mm shaft fit our existing kit perfectly, and the 10mm crank motion feels smooth enough that my kids can power their builds without jamming. Nice to finally have spares so we're not swapping one crank between projects.
Snapped these onto our build kit and the hand cranking feels way smoother than the little motor we were using. The 10mm circular motion gives kids a nice steady turn without jamming up. Ended up ordering a second pack for the classroom.
The shaft length on these is perfect for building extra mechanisms without needing to hacksaw anything down. I grabbed a pack to keep around for when the kids lose one from their class set, and the circular motion is smooth enough for their smaller hands to turn steadily.