I have attemped to etch glass using a vcarve bit at 20,000 RPMs at .005 to .0025 depth. I've got mixed results from cracking the glass to ruff edges.
Also because I'm dealing with such small amounts of depth, any differences in the table or material cause the bit either go to deep or miss the surface all together.
Any Comments?
I'm assuming I should just purchase the diamond drag bit with the spring loaded tip from our friends at shopbot?
Does anybody have experience with any other bits?
Thanks in advance for any input!!!
John