How to make a homemade tumbler etc. (Math Explained)

[Scott Bear]

Where is the tumbler? Can you take pictures so we can see how the whole thing works?

 

[hunter64]

Where is the tumbler? Can you take pictures so we can see how the whole thing works?

At the start of this thread is the actual tumbler and I just started another thread http://www.canadiangunnutz.com/forum/showthread.php?t=713545
"Do stainless steel pins work".

You take that drum and put it on the rollers and there you go. I don't have anything to take a video of it working but it is basically exactly as this youtube video. http://www.youtube.com/watch?v=TtVHvMNf6tM&feature=youtu.be


I have had a lot of requests for dimensions etc so if I get time tonight I will make up a materials list etc.

 

[mkrainc]

Mine is not quite as neat. My drum is made from belting. The diameter of the ends are 7 and 3/4". The drive shaft is 7/8" in diameter. Driven pulley, 7" at the bottom of the groove. Drive pulley, 1" at the bottom of the groove. Motor Rpm, 1725. End result, drum turns at 20 rpm's. (counted with stop watch)

Drum

Inside drum

Result