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Re: G10



Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>

Hi Scott,

I didn't find it harder to machine G10. That part went just fine. The problem is: G10 is very hard on the tools. It dulls HSS very quickly. TIN coated cobalt hold up just fine.

Gerry


Original poster: "huil888" <huil888@xxxxxxxxxxxx>

Gates -

"G-10" is not a phenolic-based material, it is a very difficult to machine fiberglass-reinforced epoxy composite. For fabricating a disk for a rotary spark gap, you want to use linen or cotton fabric reinforced phenolic composite, type "LE" or "CE".

McMaster-Carr (mcmaster-carr.com) stocks 12" X 12" slabs of linen and cotton-reinforced phenolic material (as well as fiberglass G10 material ) in a range of different thicknesses, including 1/4", 3/8" and 1/2" at reasonable prices. They can ship next-day.

M-C's brand of linen-reinforced phenolic composite is called "Garolite CE". A 12" X 12" X 3/8" slab of CE material is around $23 plus shipping.

Regards,
Scott Hanson
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Saturday, March 03, 2007 1:42 PM
Subject: G10


Original poster: "Gates" <ryker@xxxxxxx>

Hey Gang
Does anyone out there have a spare piece of Phenolic for my RSG disk?
I would need a piece 8"x 8" 1/4" to 3/8" thick.
Thanks
Gates L