Re: Muckite


"Pooh Bear"
Phil Allison wrote:

"martin griffith"

Anyone else use this phrase for the material that Diecast boxes are
evolved/grown/groan/ from, Hammond, Eddystoned etc. are made of?

** Never heard of "Muckite" .

But a Kiwi colleague would often refer to cheap, brown PCBs as being made
from "compressed dog turds".

Diecast boxes vary greatly. Some are light as a feather, so must be
mostly
Zinc and Aluminium - while others are heavy and so must contain a large
percentage of lead in the "muck".

IME, the light ones are tricky to machine largish holes in for XLRs etc.

I find a " step drill" ( made by G & J Hall Ltd in the UK) to be
invaluable
when dealing with them.

Those work well.


** Brilliantly, I would say.


I've never had any trouble using Q-Max punches on them though ( for holes
up to
15/16" in diameter ).


** Depends on the situation.

The DI boxes I make need a 19 mm hole in the 26mm side of a small plastic
coated box with internal ribbing.

A 20mm chassis punch causes serious crumbling or even breaks the side open.

OTOH, a Hall step drill goes through it like a hot knife through butter.






....... Phil






.