Archive of the former Yahoo!Groups mailing list: Homebrew PCBs
Subject: Re: "Twist" on an old method of PCB making.
From: "onenastyviper" <oneNastyViper@...>
Date: 2005-03-20
Hi guys.
I am using an HP 7475A for scratching using a modded pen and solid
tungsten-carbide bit (a bit from a Wickes tile scribe) any ideas on
how to sharpen this bit??
Also, what are the advantages to adding weight to the bit?? How much
max weight?
PK