Post by petrifried on Nov 18, 2019 21:21:02 GMT -5
I have an old 8" arbor with a grinding wheel, expando- drum, and leather polishing wheel. I've been using silicon carbide wheels that were given to me (not sure what grits) they have done the job ok, but the constant grooving of the wheel is not enjoyable. Is it worth it to get diamond wheels just for pre-shaping? I mainly like to shape pretty big agates and petrified wood, up to baseball or bar of soap size. Of course i want to do even larger rocks=)
My current method for pre-shaping and tumbling:
- rough shape cut/grind with a homemade trim saw ( mk hot-dog blade)
- do the final shaping on the grinding wheel
- Toss into a 12 or 15lb barrel course grind
- into the lot-o to finish.
yes it really can handle almost anything that you can squeeze into the barrel!!
I've been experimenting with going from the ginding wheel to 100 grit on the expando- drum then straight into the 120-220 in the lot-o. Seems to be working.
Are the THK Diamond Wheels on ebay a good choice?
Will these bench grinder wheels work for lapidary?
www.ebay.com/itm/POWERTEC-15510-5-8-Arbor-100-Grit-Silicon-Carbide-Grinding-Wheel-8-x-1/123973089718?epid=3006829466&hash=item1cdd5f39b6:g:23MAAOSwr0Rdyp6q
My current method for pre-shaping and tumbling:
- rough shape cut/grind with a homemade trim saw ( mk hot-dog blade)
- do the final shaping on the grinding wheel
- Toss into a 12 or 15lb barrel course grind
- into the lot-o to finish.
yes it really can handle almost anything that you can squeeze into the barrel!!
I've been experimenting with going from the ginding wheel to 100 grit on the expando- drum then straight into the 120-220 in the lot-o. Seems to be working.
Are the THK Diamond Wheels on ebay a good choice?
Will these bench grinder wheels work for lapidary?
www.ebay.com/itm/POWERTEC-15510-5-8-Arbor-100-Grit-Silicon-Carbide-Grinding-Wheel-8-x-1/123973089718?epid=3006829466&hash=item1cdd5f39b6:g:23MAAOSwr0Rdyp6q
