RBnDFW wrote:
On 11/10/2010 10:36 PM, F. George McDuffee wrote:
On Wed, 10 Nov 2010 18:04:31 -0800, wrote:
snip
I was out of town today and took the opportunity to look for dowel
pins etc. No luck.
snip
Find a junk printer - dot matrix, laser, or inkjet.
They all have precision ground rods within.
That's what I use.
Also, for the best precision in drilling holes with my minimill, I use
a collet to hold the drill. The chuck that came with it isn't very good.
Maybe a bit large for a mini mill but the rod used on car damper struts
could be of use and readily available. Last dampers that came out of my
VW I kept and were 22mm OD chromed ground bar and while I could see the
wear area by the finish the difference in size from the unworn sections
was almost indistinguishable with a 0.01mm graduated non digital
micrometer, maybe in the order of 0.001 mm to 0.002mm.