Want to cut a checkering file lengthwise.

A

alexmin

Joined
Nov 16, 2005
Messages
513
I have a 3/4" wide checkering file. It's too wide to work on curved surfaces. It would be nice instead to cut it lengthwise into 1/4" and 1/2" wide files.
I don't want to grid down most of the file into dust on my grinder.
Is there any waterjets services around available for a reasonable price?
 
I wonder if you could clamp that edge-up between two pieces of narrower steel and surface grind it?
Betcha could.
 
Waterjet's the way....

Check the waterjet thread in this forum for Dave from Greatlakes Waterjet.


Hell of a guy.
 
Alex - I use the file at an angle to get these cuts, I haven't tried it inside a really tight curve or anything, but I've never had a need for a narrower file.
 
I just get some drillrod and file out whatever kind of tool needed, harden it and go for it.
 
I've a friend who is a tool & die maker and a custom rifle builder. He narrowed his checkering files by EDM... cut into about thirds... cuts made in the valleys.

Mike
 
I'm thinking of a low tech/low cost approach.

Dremel tool, Foredom handpiece, or similar type, using small abrasive cut off wheels.
(hard stone abrasive, fibreglass imbedded abrasive, or diamond tipped-your choice)

Keep the file cool with a water bath.

Be careful to keep the wheel straight in the slot, or get a lot of practice replaceing shattered wheels.

The kerf of the cut, plus the grinding you will do to straighten out the cut means i would expect to lose a tooth or two of width.
 
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