MDF Raised Panel

[boet]

I just did a test cut with raised panel cutters and everything worked fine but how do I get the bottom corners square instead of the radius it has as can be seen in the attached photo.

8483

[paco]

Take a close look at the bit geometry; can the bit sharpen a corner? Pretty much only V tool bits can make 3D corner sharpening.

[boet]

I don't think the bit can do it it is Onsrud 47-06
Thanks

[myxpykalix]

The only thing i could think of might be to have a seperate vector alongside the mdf bit toolpath that might shapen the corners with a vbit. I used the whiteside equivelent to the onsrud bit for this panel i did. Buit my corners are not sharp either.


8484

[daski]

The profeesional door shops use a two pass technique. The first yields the result you have, they then do a second pass with a very small dianmter bit to "square" the corners. The doors are then foiled and you don't tent to notice that it's not perfectly square.

[davidp]

If the external profile is a chamfer, It is easily done with a vbit in a single pass, but to get good results you have to be very accurate with the angle of the cutter you use. Not all 90deg V Cutters are 90 degrees. It then just involves a bit of simple trigonometry.

If your profile is an ogee or a quad moulding or any other rounded moulding it is theoretically possible but it is very much more difficult and involves some very complicated maths and lots of testing. I have yet to perfect it so that it is repeatable but I am getting there.

[andyb]

Have you looked at FreeDoor? Heres the link: http://home.centurytel.net/bwclark/ Bruce and Mike have done a great job with it.

Andy B.

[dray]

I use free doors from Bruce and Mike

8485
8486

Great Program. Mike and Bruce are the best!

[dray]

Oh BTW.. My tool guy is making me bits along with matching one tap radius chisel sets so that I can use a radius bit on the outside cut instead of Vbits if that makes any sense..

If not email me and Iwill send pics