Makerbot Filament Box and Drive Mechanism

Over the past few weeks I’ve been working on a project for MakerBot Industries; a Bowden-style filament drive mechanism and filament box.

The design files are in the MakerBot subversion repository. I’ll put them on my Thingiverse page when it’s complete.

Here’s the box all put together.

Removing the small cover reveals the drive mechanism and controller board. The drive mechanism is a derivative of the Paxtruder.

Looking inside we can see one of the two brackets holding the shaft in place. I made the filament reel from cardboard. The MakerBot filament will probably ship with a different reel.

Lastly, we can see some feet from 3M. I have to use these because the bottom piece has female t-slots and the bolt heads stick out. This configuration gives an extra 5 mm from top to bottom.

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