Last week Thursday part of the roaster failed (the plumber who put the part in a few months ago screwed something up, the original part lasted nearly 2 decades). Today the replacement part arrived and I successfully put that in myself (needed to buy a tool, the person at the hardware store was very helpful). For the days in between, I used a combination of items that were never intended to be used together to glue the broken part together well enough to work until the replacement part arrived.
The alternative would have been roasting coffee on the lab roaster, getting about 6 pounds per hour (vs. closer to 75 pounds per hour max on the production machine). I'm glad things didn't come to that.