Gallery, Projects and General > Project Logs
Dovetail Cutter...Failed...
websterz:
--- Quote from: sbwhart on September 26, 2009, 01:28:48 PM ---Darren:-
That may have worked if you hadn't under cut the holder, if you look at the last but one pic you can see where you can have more meat in the holder.
With a dove tail cutter you really load the cutter by using its full length to take the cut, not like a spiral end mill cutter, where is takes the cut progressively in a slicing action, thats why you need to take small cuts and keep the tool as strong as posable.
Good luck
Stew
Edit:- Just read Jimmy's reply and he's correct you need to back the tip off.
Stew
--- End quote ---
No matter how deep or shallow the pocket, when you swing a zero rake insert like this in an arc the backside will always take a bigger swath than the insert I have referenced. The 7 degree clearance is critical. By cutting the pocket far enough back to line the bottom edge of the insert up with the cutter body you have plenty of tip extending beyond the cutter for doing the job. I can put up a pic of my cutter if you'd like.
jim:
you could just back off the tips you've got to get enough clearance :dremel:
websterz:
--- Quote from: jimmyocharlie on September 26, 2009, 01:43:29 PM ---you could just back off the tips you've got to get enough clearance :dremel:
--- End quote ---
The backside moves the same proportional distance as the cutting face...I don't think there's a point where the insert shown will work. Pics of my cutter coming up in a sec.
websterz:
Cutting edge on centerline...sorry for the blurry pic.
half-inch shank...plenty stout
Cutting edge extends about .020" below the bottom of cutter body so it cuts without rubbing. You can see the light under the cutter body but none under the insert in this pic.
websterz:
--- Quote from: Darren on September 26, 2009, 01:35:03 PM ---Thanks Guys, I knew there was a good reason to put the post up, never gave the back edge a thought...... :doh:
Dunno why not....... :smart:
I'll try to get some different tips, smaller ones too so the holder is left with more meat on it ( a lot more) and have another go...... :thumbup:
--- End quote ---
PM me your address Darren. I have a few extras in 2 different sizes...parting gifts from a former employer. I'll be happy to share. :thumbup:
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version