Barrell Trimming (Yep another way)
- Thread starter Twist-Ed
- Start date
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Turned Around
Member
clever, but how do you do it for holes larger than the mandrel?
Twist-Ed
Member
mikespenturningz
Member
I wish someone made a jig that could go into my chuck that could hold my HF punches off center of my drill chuck so I could hit the sandpaper off the center of my sanding disk.
carpblaster
Member
I been using a adjustable pen mandrel,if the brass is bigger i make a sleve to fit it or buy one
Mike, a Boring Head is ideal for off setting:wink:
Ed, theoretically I like the idea but for me any sandpaper that is suitable for effective barrel trimming just isn't magnetic. :wink:
I'm not sure that fixing a magnet ( or any other item ) in the tips of a collet is a good idea either. :wink:
Ed, theoretically I like the idea but for me any sandpaper that is suitable for effective barrel trimming just isn't magnetic. :wink:
I'm not sure that fixing a magnet ( or any other item ) in the tips of a collet is a good idea either. :wink:
Monty
Group Buy Coordinator
How are you fixing the sandpaper to the magnet? Are you using pressure sensitive paper?
Twist-Ed
Member
Self adhesive sand paper
(sticky on the back)
(sticky on the back)
mikespenturningz
Member
What does the magnet do then?
randyrls
Member
Skippy; I had thought about the boring head, but it is just too 'twitchy" and not likely to be very robust.
You can get wad punches in several sizes / gauges. Black powder shooters shoot paper or card stock wads and punch them out. I use a .030 and .040 punch to make holes in sand paper. Then slide it onto a custom mandrel I turned on my metal lathe. I have about six of the punches and can find one of them that suits my hole size needs. You can buy them for a few bucks on EBay.
RMayoIII
Member
Sounds like the magnet attaches to the face of the chuck and gives a smooth surface to sand off of. The mandrel keeps it centered. Makes sense to me that way anyhow!