Making Raised Panels for Arch Ways

[nick]

OK...I've been asked to reduce a local woodworkers labor costs and make arched raised panels out of one sheet of MDF...I have all the details I need to make the part but have one problem...Im trying to simulate the edge detail of the raised panel in the middle of the part. The width of the detail is 1.25" wide. I need to do at least the 18 deg angle to simulate the raised panel...but all the bits I've been looking at are 30deg to 45deg allowing for the overall diameter to fit inside the 1.25".

Any insite from botters who make this groove, what bits they use to get the detail correct or is it impossible to simulate...

Thanks

[nick]

To add some detail
8515

[the_doctor]

Nick, I worked with the guys at vortex cutters and they designed all the cutters I would need for my project like this. Very pricey. I did not get the job so I did not purchase the cutters.

[nick]

Thanks Doc

[erik_f]

http://www.centuriontools.com/router_bits_toolcase/centurion_tools_showcase.html?splashPG=y&__max=6&p ageID=1&cart=12331530524221908&id1=374&id2=15&id3= 740&startat=1&--woSECTIONSdatarq=740&--SECTIONSword=ww

Not exactly what you are looking for but close

[jhicks]

Nick, just one comment. You say "30deg to 45deg allowing for the overall diameter to fit inside the 1.25""
The overall diameter is somewhat irrelevant so don't make the width of the cut the diameter of the cutter an absolute requirement.
In a V cut strategy, the V bit will only cut as deep as necessary to clear the area between your 1.25" wide vectors. In fact you would be better off getting a 1.5" diameter or larger cutter so you can be sure the cut is accomplished all the way up to the surface of the stock as efficiently as possible.
It does sound like a custom bit though.

[nick]

Jerry...your absolutly right...and I dont know why I was taking that approach...I guess its a factor of the geometry of the profile and depth of detail...

Thanks

[the_doctor]

A large diameter raised panel cutter for the 1.25" detail and a v- bit to clean up the rounded inside corners.

[bryson]

Nick, Russ at www.centuriontools.com (http://www.centuriontools.com) made me some 20° 1/2" V- bits for my pattern making.
Bryson

[wberminio]

Would it make sense to cut the outer profile
as on piece and cut the panel as a separate panel?




Erminio

[geometree]

Amana has lots of MDF panel options. http://www.amanatool.com/cncroutingdetails/mdf-cabinet-door-bits.html
If you need the look of square edge stiles and rails, I would think about cutting the panels out of separate pieces and pocketing the back of the arch to drop them in. Otherwise you would need to use a cutter smaller in diameter than the flat at the bottom of your panel raise profile.

[nick]

Erminio, I asked that question and at that point of 2 pieces of MDF, he said its easier to do on a router table and see's no benefit...but I am still working that detail with him...so for now he wants to explore 1 piece...for fabrication and installation benefits..

[wberminio]

Nick
I'll be interested in what you find out

Erminio

[benchmark]

Nick,

You could do this with a two rail sweep in Aspire, you would use a standard ballnose and an end mill cutter.



Paul

[nick]

Paul,

I did think about that but how much machining do you think that would be...these details are 1.25" wide and the panel's are 72" long

Nick

[dray]

Nick.. It would be much easier to use standard rabbited panel mold. I would cut arches etc on the cnc and use flex panel mold. For me its easier than trying to square out the inside corners on the cnc. Im mathematically challenged.



8516

8517

8518

[wberminio]

Nice work Danny

what did you use to make the curved stiles and rails?

Erminio

[myxpykalix]

Nick,
Are you trying to make something similar to this?

8519

[dray]

I use wigglewood. 2 layers of 3/8"

[nick]

Hi Dan...thanks for the detailed info on how you make these panels...

Very nice work also...

If you dont mind I would like to show my customer your work for ideas.

[wberminio]

Danny
I agree, very nice work.

I've also used wiggle wood and 1/8" bending ply for the smooth coat.

I started making my own bending MDF, now that I have a Bot.

3/8"MDF with grooves cut to one side.
Glue to grooved sides together.
Attach to a Bot cut curved mould.
Let dry and your done!
It doesn't flex and is very strong.

Try it.
Owning a Shopbot opens a whole new world.

Wish I had one 20years ago.


Erminio

[dray]

Yeah, I have used 1/8" mdf for radius head cabinetry but its a bitch. First I have to create a form then laminate to the form 6+ layers and it never stacks right. For me anyways the wigglewood is easier to work with and I only have to laminate 2 layers. I think there is some more radius stuff in gallery or gallery vid

http://www.drayconstruction.com/html/gallery.html

[nick]

Dan,

Are you uning a vacumn table?

[joe]

I've always liked Dan's approach to cabinetry. Over the years he just keeps plugging along knocking out great stuff.

The thing about him is, the down to earth get it done attitude.

[sax13]

We can help you & make the bit you need. If you send a 1:1 drawing of the detail, we'll quote. If you accept, we will ship within 24 hrs. Fax 715-662-5801 (phone 800-475-9991)
www.woodworkerstool.com (http://www.woodworkerstool.com)

[dray]

HI no, I don't use a vacuum table.