Fluting

[rg_engravers]

http://70.114.47.213/Shopbot/For%20f...ry%20Poore.htm
You can cut it both ways
Just use the same diameter bit as you want the slots to be

[rg_engravers]

O darn I now just seen the Upload Attachcment button

[mikejohn]

Perry
Do the flutes go full length?
If so its straight forward.
Its if the flutes start or end before the end of the piece you have to move the bit onto, or take it away from the material, so as not to "knock off" the upper corner of the 'C' with the two outer flutes.
The other 3 flutes do not have this problem.
Another point to remember is, the distance between the centre of the bit (x or y) is different between the centre flute and the one either side, and between this 'either side' flute and the outer flute.

...........Mike

[myxpykalix]

Heres an idea...I have a legacy ornamental mill also. Look at the indexed gear in back. The shopbot could drill your equodistant holes for indexing on a round piece of plywood. Take a second round piece, drill one hole at top. Make a crude "axle" with a dowel. Attach your piece to the center. Your piece, even though it is not round should follow the evenly spaced holes and make your flutes flat because each one is now 90 degrees to the bit. You can use these pilaster mounting dogs here:
http://legacywoodworking.com/products.cfm?product=46
or make your own. If you are dealing with Z height clearance issues if you make the part that holds the "axle" up off the table an inch or 2, that should give you room to "pivot" the workpiece. Go to http://legacywoodworking.com you might get some ideas on how to adapt it to your table without having an indexer.

15938.jpg

[kaaboom_99]

Great input guys!
I love this forum.
Thanks and keep the ideas flowin'