On 7/12/2014 8:02 AM, Bob Engelhardt wrote:
On 7/12/2014 5:29 AM, Karl Townsend wrote:
...
My *guess* is pre sltting would not be any easier and would slow down
the CNC lathe work.

The trade off is slitting 15 4" pieces vs 1 5' piece.

BTW - I found a source for 1" x 3/4" Delrin that prices it at $37 per 5'
piece. $2.50 material cost for each 4" piece! 'Course when you're
buying 2500', you'll get a better price, I hope.

Bob
One would think filling it with a fast setting epoxy / resin would be as
good or better and cost less.

Buy by the 55gal drum and inject.

When they installed a new telephone pole in my side yard - I have 1800
foot of 2-phase HV to the house and shop. :-) They had the pole set
and the hole a bit large but not much. Before setting, they dumped
a mixed up resin and poured it in the hole. Then dropped the pole and
another 5 gallons of the stuff was poured around it. The two men then
did heave plenty of dirt atop of the hole and stood atop that! They
rose by maybe 6" as the plastic resin expanded and filled every crack.
It also helps protect the pole from insects. No hidden holes to allow
the pole to lean after a rain storm.

Martin