I leave mine all night every night full of christmas bells in my basement next to my sons room trying to run him off. Hasn't worked yet and hasn't caught fire.
I let my tumbler run for 96 hours straight... still going.... Its a Lyman btw. Twin tumbler or something.... Damn thing is a work horse.
Btw, he's my friend, but my other friend told me he said that. I was like... umm... that's f'n wacky!
-JD-
Similar to mine. I have a Turbo 2200. But I get my brass clean and shiny in 3 hours. 96 hours? Are you polishing brass or something else? You must have some pretty brass after that much time.
I run mine in the garage, or even outside if weather is decent. That's a lot of lead dust made by those things. Who runs them inside?? I digress...
I picked up a timer. I run brass 2-4 hrs depending on how dirty the media is. Timer keeps it from wasting electricity, putting unnecessary hrs on the motor, and gets rid of the noise (garage is under the bed room), and [if concerned about it], reduces fire risk.
timer is a couple bucks at local HW store.
-rvb
Good idea on the timer. I would have run some brass last night but didn't want to leave it run all night and I was two hours from bedtime. I could have stuck it on a 4 hour timer and went to bed and had clean brass this morning!
If it is a Midway USA tumbler from the mid 90s, he has a legitimate concern. They had a recall on certain ones due to reports of them catching fire. I have a Midway tumbler and it has a cooling fan for the motor.
RECALL: Midway Tumbler model No. 1292 - AR15.COM