Frankly I've never seen a doetail cut for face mounted O-Rings. One thing I would be concerned about would be the ability of the O-Ring to hold its shape and loose it's sealin ability due to migration into the corner of the dovetails.
Obviously not knowing more about the product this is pseculation. However if you are worried about retaining the ring, during assembly or whatever, I'd suggest that a little supper glue in one or two spots might do the trick.
Dave
Originally Posted by Mcgyver On dovetails, i've always done/been told/read to end mill out the bulk of it and use the dovetail for the triangles - i've havn’t done a dovetail this small or via cnc but would guess the principal (the size of cut is excessive to the small part of the cutter) would hold.
as a good finish with an end mill usually requires separate cuts on each side, if the slot is only 1/8, you are going to be using some small cutters! Being cheap and not wanting to bust the cutters, it would take a bunch of passes to rough it out to .112 deep. I'd be inclined to do it in the lathe with a tool ground for trappening and then a couple bits ground to the the left and right side of the dovetail. Finish would be excellent, tooling is inexpensive and it might be quicker to machine. How may do you have to make? |