It's red.. 

Rollers are fun. PVC pipe with MDF wheels to match the ID of the pipe. Pretty strong setup. Epoxy will hold them in place.

More doughnuts. Little dinky doughnuts this time. These are 1.590" to fit inside the 1.5" schedule40 PVC pipe. Thats what size the actual pipe was.
 

I like to paint my tool cabinets red so I painted this red also.  

Here is a mock-up of what I have so far. I still need to finish up the conveyor rollers and sides and do some sanding so things slide nicely together. The drum discs are just test fitted also but I am happy with what I have so far, it's coming together better than I hoped.

When making the sides, it's best to clamp the two sides together and then drill them. That way everything is the same, and you get done in almost half the time. There are 6 pieces there sandwhiched together. On the edges of the MDF is spakle to fill in the pores. That'll make it look a little nicer once it gets painted. 

mmmmm, doughnuts... 

Viola! 3/4" holes in a 5 inch disc. Now let's make 25 of them! Yea haw!!

Drilling holes for the drum discs. ShopNotes suggested a fly-cutter, a drill centering jig and then making the center hole bigger after you cut the circle. That seems a little retarded so I just made a circle cutting jig that had the right size shaft in the first place so I didn't have to figure out how to keep everything centered.