Sanding down the corners

My gluing has left several rough edges where the plywood stuck out so I spent a while today taking those off with the belt sander. Here's my timelapse:


This took longer than I expected. One of the challenges was that I discovered that I was not getting the suction from vacuum, nor the impeller built into the sander. I discovered that although I had previously cleared the foam from the intake. There was still foam in the narrow passage between the back of the belt on it's way to the impeller. The passage is about as deep as the sander is wide. But it's only about half a cm tall. And the foam pieces clog that up pretty well. To discover and clear that clog I had to take apart the belted gearbox which drives the impeller and sander.

The sander partially dissassembled to clear the clogged exhaust vent. 

Sanding without the suction left a lot of dust:

At the end you can see me getting ready to add plywood to the sides of the lift fan cutout.