Routing to a Straight Line

You didn't mention what the material is, David. Personally, I'd hand plane it to the line. With a sharp blade it's a fast and satisfying task.

The material is 3/8"wood (pine) and I no longer have a plane.

Depending on my mood, I might well sand something like that, with my ROS.

You can use your router as a joiner, and just plane the edge off a little. a plain straight bit works fine, but a bit with a little bit of a shear angle like a flush trim bit or spiral bit may leave a finer finish

Lots of examples on line, here's a discussion from a little while back on the topic.

https://www.routerforums.com/table-mounted-routing/20177-using-router-joiner.html

As long as the roof isnt too big to manhandle, a router table with an offset outfeed fence will do the job.
Or if you have a bearing guided cutter clamp a straight edge to roof and rout to the straight edge.
Or... if the excess isnt too big any kind of sanding will do the trick.

I've just finished a 3 story Barbie doll house, but out of 1/2" ply so it was all cut to size on the table saw.

Handplane for satisfaction. Band saw for freehand or if the material is hardwood, and if you have one. Others have already handled the router options, using a straight edged piece as a "pattern. That's an easy option.


I'd score the line with a knife or exacto using a straight edge, to prevent tear out. Depends a lot on the material, hard wood or soft, big difference in options.

I have a small 12 " Rikon band saw in my shop just for this kind of thing. Inexpensive and I use it a lot. Even has carter style bearing guides. Carter Stabilizer to make tight turns is made for it too. https://www.carterproducts.com/band-saw-products/band-saw-stabilizer If you make small stuff often, that saw isn't very expensive and you can get good 72 1/2 blades up to half an inch. You'll get a lot of enjoyment with it. WEN is the same saw, but a little cheaper