Homebrew_PCBs

--- In Homebrew_PCBs@yahoogroups.com, JanRwl@A... wrote:

> In a message dated 11/30/2003 9:13:18 PM Central Standard Time,
> adam_j_bradley@y... writes:
> Any other issues that could be causing this? I suppose the key is

super

> sharp bits. PS: I'm using a 20k RPM 'dremel' like tool and non-tc

drill bits

> (yet). Have yet to find a source for them in Australia.
> Adam: I don't know if the "Dremel" you have is ACTUALLY a Dremel,

Try to separate your reply. It hurt my eyes to look for where the
quoted left off and yours started. :'/

> Also, I drill FIRST (I built my own computer-controlled X-Y

PCB-drill rig â€" I

> am still TRYING to figure out how to upload a photo of it in PHOTOS

section

> of this group

Sigh... you've had it uploaded forever! I moved it and resized to a
more reasonable size. If you upload to Photos, all anyone will see is
a tiny 300x400.

It's here:
<http://groups.yahoo.com/group/Homebrew_PCBs/files/Homemade%20PCB%20equipme=
nt/>

> drilled "after etch", when I didn't have this rig built, but I

ALWAYS used

> super-sharp (i.e., "fresh") drill-bits, never DULL ones. HSS bits

will go dull in

> glass-epoxy after two or three holes! ONLY carbide will work for

hundreds of

> holes, and THEN, only in proper equipment, NEVER in a "sloppy" Dremel!

I concur. Sharp, sharp, sharp. I have a drill bit resharpener for my
regular bits, but I don't think it'd last long on carbide.

Doesn't Think and Tinker offer resharpening?

Steve