teflon washer ftw!

i've been having tons of trouble with the roaster ever since i replaced the drive shaft. it'd get caught on something internally, change direction, get caught again, and get stuck in an seizure of fast direction changing, which led to underagitation of the beans, and an uneven roast (or flaming beans).

well, reviewing someone else's version of the same roaster, i realized that that little white unknown thingy that fell out when i took it apart, which i never put back in, was a teflon washer. hm, what could that be useful for?

maybe... keeping the metal-on-metal junction of the bed+driveshaft from sticking?

aha!

i took it apart (ugh) put the washer in place, and am roasting now. it seems to be turning smoothly, not changing direction at all. still a little wobbly because of my poor drilling job, but waaaay better than before. hooray for using all parts!