RE: [CAD_CAM_EDM_DRO] CNC Machine for Engraving

Dremel tools make lousy spindles, the run-out is much too high. The Porter
Cable router might be OK, many times the stock collets are not very good and
run-out is an issue as well. Excessive run-out will quickly destroy a good
V-bit type engraving tool. I do carry some high precision collets for the
Bosh Colt and some

Porter Cable routers:
http://www.soigeneris.com/PreciseBits_Porter_Cable_Precision_Collets-details
.aspx , they won't work in your PC though. I do all my engraving with these
bits:
http://www.soigeneris.com/PreciseBits_Trace_Isolation_Tools-details.aspx .



Jeff Birt

Soigeneris.com

From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of CRPE Solutions
Sent: Tuesday, December 28, 2010 2:27 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] CNC Machine for Engraving





Hello to everybody in this forum. Merry christmas and happy new year.

I have built a CNC machine and my intention is to engrave aluminum and
brass with it and create some kind of medals. I have tried several
diamond and carbide bits with no good results. What are the best bits
can i use in order to do this job on metal?
I have two options for the spindle, a Dremel 395 and/or Porter-Cable
7310. Both runs over 30,000 rpms.

I really appreciate any help.

Sincerely,
Carlos R. Pena
Santo Domingo, Dominican Republic





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