Replies

1. 
   JasonQ | Aug 02, 2005 08:15am | #1

   Hm.  I haven't done that myself, but I've always thought it might be a job for a table-mounted router w/ a dovetailing bit...of course, I could be wrong.

    

   Jason

2. 
   forestgirl | Aug 02, 2005 08:44am | #2

   Most companies make them I think.  Here's Freud's version.  You might want to try Lee Valley too.

   Hmph!  Nothing at Lee Valley; thought Whiteside would have one, but didn't see it listed.  Amana makes one, and they're usually easier to find that Freud bits (at regular stores).  Try Amazon if you can't find it in a store.

   forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-)
   Another proud member of the  "I Rocked With ToolDoc Club" .... :>) 

   
   

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   Edited 8/2/2005 1:52 am ET by forestgirl

1. 
   webdesigner | Aug 02, 2005 08:52am | #3

   Thanks Forest Girl.I'm more interested in routing out the channel for the butterfly spline, that's the tricky part.Thanks again!

1. 
   forestgirl | Aug 02, 2005 08:57am | #4

   Hmmmmm, you asked:  "How do you make this type of mitered spline?"  You meant:  "I'm more interested in routing out the channel...."  OK, gotcha.  Per Freud instructions:

   Use a 14° dovetail bit to produce the mating grooves.

   forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-)Another proud member of the  "I Rocked With ToolDoc Club" .... :>) 

3. 
   mikegagne | Aug 02, 2005 09:21am | #5

   you can do it in a tablesaw or a router table. Cut the receiver first then make the butterfly piece. Nice Mac slideshow by the way. aloha, mike

1. 
   webdesigner | Aug 02, 2005 11:23pm | #6

   Mike,Thanks.Cutting the "butterfly receiver" is the part I don't know how to do.
   What kind of router bit should I use? A tiny dovetail bit?
   Circular dovetail tenon cutting bit...such a thing?

1. 
   ram | Aug 03, 2005 01:48am | #7

   As I mentioned before I've never done this so feel free to ignore my thoughts.

   That being said:

   1 - FG posted the bit answer: 14 degree dovetail, if you use the Bosch 14 degree butterfly bit. The thing that I don't care for is, I've never seen a 14 degree bit with a large diameter less than 1/2" and small diameter less than 1/4", which seems too big for me. I did see at a local retailer an 8 degree bit with a small diameter less than the 1/4" shank, but I'm not sure that would be safe. There is a tremendous amount of stress on a dovetail bit ploughing at near full depth. And, you'd need a corresponding 8 degree butterfly bit.

   2 - You might consider a little lateral thinking: you could do a much simpler flat spline miter, and then inlay your butterfly over the splines at the corners. A simple template and inlay bushing kit may just do the trick. A flat spline should be plenty strong -- lots of long grain glue surface.