That would work, but finding a 2 degree dovetail cutter is tough...Could be special ground!
I modify M70-'s ala pre war style..Like you say, a 5 degree tilt, come in on each side with a 1/2 EM..that gives me the draft at the radius Finish up with a belt sander (table tilted 2 degrees).
Most of the time is spent bolting the action to the fixture and finding the C/L
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Just talked to my tool grinder. $25 to grind a 4 flute 3/4" HSS end mill and $35 to do a solid carbide one. That is 2deg. Modifying a dovetail cutter would work and maybe cheaper.
I'll give it a go. That does sound faster. Thank you.
quote:
Originally posted by DArcy_Echols_Co: So why not set the action bolted on the block on a 5 degree block angle plate with the rear of the action inclined.
Then use 2 degree angle cutter to walk around the tang profile ?
Matt I've found 2 degree and 3 degree Reverse Taper cutters on Ebay ever so often. But you need to call the seller to be sure the bottom OD is larger then the waist section OD
I'd buy Carbide over HS, I've only ever found 4 flute with a 3/8 shank, but a 1/2 shank cutter would work fine I'm sure.
Tilt the bolted down action TANG UP with a 5 degree angle plate in the vise. I use a 1/2 range rod and an appropriate set of bushing to locate the centeline of the action then use the center of the sear slot for the zero on your cutter path and go to town. Use something like 5 passes to do the contour
Thanks D'Arcy! I'll check them out. I hadn't even thought about a reverse taper for the tang. I used to do it with an indexing head and a mandrel but found it too time consuming (mostly having to switch out my vise for the indexing head), hence why I opted to start putting the draft in by hand.
Similar to the range rod, I use one of those blueprinting reamers with tight fitting bushings to find center line.
quote:
Originally posted by DArcy_Echols_Co: Matt I've found 2 degree and 3 degree Reverse Taper cutters on Ebay ever so often. But you need to call the seller to be sure the bottom OD is larger then the waist section OD
I'd buy Carbide over HS, I've only ever found 4 flute with a 3/8 shank, but a 1/2 shank cutter would work fine I'm sure.
Tilt the bolted down action TANG UP with a 5 degree angle plate in the vise. I use a 1/2 range rod and an appropriate set of bushing to locate the centeline of the action then use the center of the sear slot for the zero on your cutter path and go to town. Use something like 5 passes to do the contour
