@JuanMoore Thanks for the feedback. Ordered 3lbs, after shipping 10.30/lb which isn't terrible. Supposedly got to watch out for the flip up at the end of the roast. More fan, less heat maybe?
TD
you run that drill full speed? How much coffee do you roast in that? Detail on the thermometer probes into the computer for Artisan? Looks like a pretty effective roaster!
Made the wife a cup of it after posting. She's terrible at identifying flavors in coffee/beer/food, but actually commented that it reminded her of a mixed berry pie.
Still trying to get this roaster dialed in, was only my 3rd roast on it, and the first with the thermocouples/Artisan. It definitely has a lot of advantages over my old heavily modded popper, but I'm still trying to figure it out, and it doesn't help that I'm tinkering and modifying it between every roast. Probably should have tapered off the heat at the end more, but oh well. Heat gun fan only has 2 speeds, high and low, with low being too low to be useful.
I have a flexible wire cable organizer that I wrap around the drill trigger and twist tighter or looser to control auger speed. Nowhere near full speed, just try to get the beans moving good, probably 100-120rpm. I use the little caribiner to prop the lid open slightly for exhaust, which also allows the chaff out. If the drill gets going too fast beans fly out too. It's tricky because the drill and heat gun are plugged in to the same extension cord, and the drill slows way down when the heat gets turned up, and speeds up when the heat gets lowered.
I've been roasting 200-250g at a time, but I'm sure I could roast a lot more, likely close to a pound if I wanted to.
The thermocouples are just some cheap high temp rated k type I found on ebay, 65mm (2.5") long probes, 5mm diameter, with 1/4" pipe thread fittings ($12 shipped for the pair). They're connected to a Phidget Vint thermocouple reader, which is plugged into a Phidget hub, which plugs into my laptop. Chose Phidgets because I thought I might want to automate the heat using a servo motor someday. For now still all manual, but the auger issues have me considering replacing the drill with a little DC motor and using Phidget/Artisan to automate/control the auger speed.