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Cheapass dovetail cutting - fly cutting style

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NeoTech:
Well i enjoy making fly cutter of different variations.. And then the need for making dovetails came up. Specificaly a dovetail for a sight mount on a air rifle ive been struggling with building for a better part of a year or so.

But ive figured.. why throw away **** ton of cash on dovetail cutter when you should be able to fly cut a external dovetil with a proper sharpened bit.. Have someone tried this??

philf:

--- Quote from: NeoTech on October 01, 2012, 04:40:55 AM ---Well i enjoy making fly cutter of different variations.. And then the need for making dovetails came up. Specificaly a dovetail for a sight mount on a air rifle ive been struggling with building for a better part of a year or so.

But ive figured.. why throw away **** ton of cash on dovetail cutter when you should be able to fly cut a external dovetil with a proper sharpened bit.. Have someone tried this??

--- End quote ---

Hi Neotech,

No reason at all why it shouldn't work.

Years ago I made one for reconditioning the cross slide on my Super Seven. I brazed a triangular carbide insert on to a shank I'd turned up and then ground a bit of relief on the bottom. It worked perfectly and has been used several times since on other jobs.

Phil.

PekkaNF:
Is this of any help?
http://www.cnccookbook.com/MTMillDovetail.htm

Pekka

NeoTech:
It sure is. That wasnt one way i thought of doing it at all ;D

I was into making a bit looking like this,
And mounting it in a 20mm straight shank with some countersink screws. =)

PekkaNF:
Sooooo.... I figured :lol: You want to grind a good size HSS blank or silver steel and bolt it onto 20 mm round shank?

But I actually tought of doing this too, because I seem to be missing always the "right" cutter. I envisioned some trouble getting the business end cutting angle right and straight, therefore I concentrated more to "buy accuracy" i.e. use something that has been manufactured right. Do you have TCG?

You could ofcourse bolt insert into holder and bolt that one into shank...I actually swing an insert lathe tool on my flycutter most of the time.

Any particular reason to grind this tool? Maybe other than 45 or 60 decree angle?

Pekka

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