jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
|
Post by jamesp on Sept 1, 2014 13:58:00 GMT -5
This way chips less than using the top flat side. Safer too. Intend to mount it horizontally, provide a hand rest and a safety guard in the form of a window. Runs dry with a fan to blow the dust away. Long lasting and cuts quick. It is called a 4 inch diamond cup wheel and costs $15 at Harbor Freight. Will thread on to a bench grinder shaft w/5/8"-11. 1725 RPM is a good speed. Steel backing plate beveled to access outside diamond cutting edge using an angle grinder while diamond cup is spinning. Before grinding bevel Position of stone for grinding, would use both hands(one holding camera). Must use caution with any high speed grinding operation.
|
|
SirRoxalot
freely admits to licking rocks
Member since October 2003
Posts: 790
|
Post by SirRoxalot on Sept 1, 2014 16:26:52 GMT -5
You grind each stone by hand before tumbling?
Why not let the coarse grit do that???
|
|
FLrockhound
spending too much on rocks
Member since July 2014
Posts: 343
|
Post by FLrockhound on Sept 1, 2014 17:05:40 GMT -5
That's a good question SirRoxalot. I think it helps control the shape of the rock and probably saves time in the coarse stage. I've thought of doing that myself to get rid of large cavities in the agate I tumble.
James, great idea, ill have to add that to my rock tools list. Can't beat inexpensive equipment that'll save time and money.
|
|
|
Post by glennz01 on Sept 1, 2014 17:13:55 GMT -5
I do NOT recommend the company Lackmond
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
|
Post by jamesp on Sept 1, 2014 17:29:16 GMT -5
You grind each stone by hand before tumbling? Why not let the coarse grit do that??? Simply to speed up the process and remove spots that tumbling has difficult time removing. May just do part of the rocks sirroxalot. It is pretty fast.
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
|
Post by jamesp on Sept 1, 2014 17:32:59 GMT -5
That's a good question SirRoxalot. I think it helps control the shape of the rock and probably saves time in the coarse stage. I've thought of doing that myself to get rid of large cavities in the agate I tumble. James, great idea, ill have to add that to my rock tools list. Can't beat inexpensive equipment that'll save time and money.
|
|