Another diy tumbler enters the arena

horsinaround spending too much on rocks If you don't lick rocks...you ain't cool Member since November 2006 Posts: 315	Another diy tumbler enters the arena Dec 15, 2009 14:24:53 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by horsinaround on Dec 15, 2009 14:24:53 GMT -5 That tumbler looks alot like my covington tripple 12 lb tumbler nice job Steve
	I don't wanna grow up....cause I'm a toy's-r-us kid...ha ha ha !!!

agatehunter
off to a rocking start

Member since December 2009
Posts: 4

Another diy tumbler enters the arena Dec 27, 2009 11:13:52 GMT -5

Quote

Post by agatehunter on Dec 27, 2009 11:13:52 GMT -5

well i,m wondering about the little belt on the other end.why would you need it, if it is free wheeling,doesn,t the main roller with the big belt push and the other roller is spinning freely,then it will turn on it,s own when the barrel is running.also, if you had your motor hooked up with the weight off the motor on a hinge ,you,d never have to worry about the belt getting loose as it wears out.a single long barrel would give you lots more space for more stones also.just trying to help,i don,t know it all.

agatehunter off to a rocking start Member since December 2009 Posts: 4	Another diy tumbler enters the arena Dec 27, 2009 11:20:24 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by agatehunter on Dec 27, 2009 11:20:24 GMT -5 another way to slow it down.........use a second motor( but running free,not wired, )as a idler, with a step pulley on it running off your main motor.

number21
having dreams about rocks

Member since November 2009
Posts: 72

Another diy tumbler enters the arena Dec 28, 2009 16:45:35 GMT -5

Quote

Post by number21 on Dec 28, 2009 16:45:35 GMT -5

agatehunter - In the past I had made a ball mill for crushing cpu chips (I was recovering gold). It is basically a rock tumbler but with ball bearings inside to crush your material. It had one driven main roller and one not, it would end up not turning. That is why I have driven both main rollers. As for it going the right speed I have bought the right pulley. However I am going to rebuild this one in a more compact form.

Jack ( Yorkshire)
has started giving rock gifts

God created - I'M Investigating

Member since November 2004
Posts: 3,076

Another diy tumbler enters the arena Jan 2, 2010 5:44:20 GMT -5

Quote

Post by Jack ( Yorkshire) on Jan 2, 2010 5:44:20 GMT -5

A Nice tumbler

I have 2 I made like that

One thing I found out that to get more traction I lifted the back roller , which seemed to help me , also driving the back pully as you also do.I also made one that takes 6 x 3lbs and a reduction so I can run 1 x 6lbs barrels se link below

img.photobucket.com/albums/v357/john-edward/Machenery/BigTumblerModification04.jpg

Building ones own tumbler is great as if it goes wrong it is soon fixed and you can calculate what speed you want (weather to rough down or polishing Cycle)

Speed calculating formular I use is Motor speed x Pulley Diameter over Driven pulley diameter = RPM

Thanks again for showing your machine

Jack
Yorkshire uk

Never stop learning , I'm Trying to learn somthing new every day.