Quadrant Cornice

[galwaydude18@gmail.com]

Hi I'm wondering if anyone has ever made a quadrant cornice using a router? If so how did you go about it? I want to make a built up cornice for a job at home and I know how to to the flat sections of it. The bit I will get stuck on is making the quadrant cornice.. The cornice I would like to make is the one in the picture.

 

[galwaydude18@gmail.com]

Ya JMB the one in the pic is easy to make. I will be applying it to a straight panel but the sides are a quadrant and I want the cornice to run around that as well.. If you get what I mean? It will be a quater of a circle at the ends..

 

[jmbfestool]

Not sure what you mean

 

[galwaydude18@gmail.com]

The cornice will be going around the arch in the fireplace and straight out where at both ends will be a quadrant pillar. That's where I will run into bother making the cornice to go around that. I'm going to make a new fireplace surround and keep the insert panel part of it.

 

[Rob-GB]

Router table and ring fence would be my go to option, but curved work can be wrought quite well using scratch stocks.

Two of these made with s/stocks as router cutters aren't made to suit the moulds required.

Rob.

 

[galwaydude18@gmail.com]

RobGB how would I make the moulding to go around the quadrant pillar? I dont have any scratch stocks so I need to use the router..

 

[Rob-GB]

Make the quadrants from a full circle of wood.
Route the external circumference then route the moulding.
Make a ring template to enable routing of inner circumference.
I make scratch stocks to suit the job when required.

I'm guessing you've not done much circular work yet, it ain't that hard just got to think outside the box a bit. [smile]

Have you drawn it up yet? That might help you see what templates you will need.

Rob

 

[galwaydude18@gmail.com]

Thanks robGB I didnt think yo make a full circle and route it that way. I've done plenty if curved work using MDF and Formica but very little solid timber curved work.

 

[Rob-GB]

For the sizes you are likely to use here making full round templates etc will make the job easier, less fiddly and the workpiece more stable to work on.
The biggest difference in using real wood against say MDF is that grain direction and tear out a a big factor, try to work with grain direction as much as possible and on tricky grain take smaller and slower bites (just because an OF2200 router can chew out huge amounts in one pass it does not follow that one should always do so  ;D )

I look forward to the pics of the finished project.
Atb, Rob.

 

[galwaydude18@gmail.com]

Here is a mock up of the pillar I will be making for the fire place. It will be more substantial in thickness than this. I was just trying out how to setup a jig for the router to create the curve when I angled a few small pieces together to make it..