PK,
The way I sharpen my carbide tip is to rub it back and forth, while turning it, on a diamond hone. Kind of like manually sharpening a pencil by using sandpaper. Then I check the tip under a magnifying glass to see how far it's gotten. I've never added any weight to my scratcher, but it sounds like a good idea.
*Brian
-----Original Message-----
From: onenastyviper [mailto:oneNastyViper@...]
Sent: Sunday, March 20, 2005 12:46 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Re: "Twist" on an old method of PCB making.
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
Be sure to visit the group home and check for new Bookmarks and files:
http://groups.yahoo.com/group/Homebrew_PCBs
Yahoo! Groups Links
The way I sharpen my carbide tip is to rub it back and forth, while turning it, on a diamond hone. Kind of like manually sharpening a pencil by using sandpaper. Then I check the tip under a magnifying glass to see how far it's gotten. I've never added any weight to my scratcher, but it sounds like a good idea.
*Brian
-----Original Message-----
From: onenastyviper [mailto:oneNastyViper@...]
Sent: Sunday, March 20, 2005 12:46 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Re: "Twist" on an old method of PCB making.
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
Be sure to visit the group home and check for new Bookmarks and files:
http://groups.yahoo.com/group/Homebrew_PCBs
Yahoo! Groups Links