How to ?

[T.R.MacMunn]

OK, absolutely no part of this was done on a CNC, but I'd like to.
This is a 5.5" barrel-ring, made out of my cedar scraps. I pop a bottom in it & it hangs on the wall.
Because of the tapered shape of a barrel, I have to cut the bottom at 7*. Easy with a scroll saw, but I have no idea how to do it easily with the CNC.
Do they make a bit that would cut this profile out in a couple of passes?

[Gripus]

T.R.
If I understand you correctly, it is the edges that must be cut at 7 degrees to allow for a smooth fit on the inside of the tapered barrel. So, working on that assumption...

The easy solution is having a cutter made if your production would warrant it.

I use Aspire so, for me, the next best solution is to create a component with 7 degree sides and cut it out using the offset method and a ballnose bit. It would probably take more than a couple of passes but would be a lot less work and more accurate then a scroll saw. At least I would see it that way because if I can get my machine to do something I used to have to do by hand I will do it. If it takes a little longer that is no problem because I can always be doing something else while it works.

As for the rest of the project I think it would be pretty straight forward in Aspire.

Joe

[Mick Martin]

T.R
Depending on the thickness of the wood, Freud sells a 7 degree dovetail bit, if you was to cut the largest diameter then use a hand held router to do the profile.
I can't help you with the sign but I know what "gezelligheid kent geen tijd" means, I lived 20 years in Holland [lol]

[T.R.MacMunn]

Joe, I don't do very many of these ..... everybody likes them but nobody buys them, if you know what I mean. I was hoping that maybe there was a tapered bit somewhere, the opposite of what Mick posted.
It takes 10 minutes with the scrollsaw & the rope trim hides any imperfections in the cut.
Mick, they're usually 1.5" thick, but can be thinner ....... that could work!
I know what "gezelligheid" loosely translates to, & the saying, but that's about it for my dutch. Canada is a very multicultural country & I end up doing a lot of different languages on signs. A lot of the time it's a gift for immigrant parents who's children are looking for an anniversary gift for them. That's the case here.
Thanks guys.

[james mcgrew]

o just get a tapered endmill

http://www.menlotool.com/catalog/ProductDetail.aspx?pid=242