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Making a Windsor Settee Arm/Crest Railcomments (3) August 5th, 2009 in blogs
I'm continuing my repertoire of Windsor chairs by adding a two-seat, low-back Settee. This one from Connecticut, circa 1820. As usual I start with the design in SketchUp and found a unique situation with the Arm/Crest Rail combination. These parts are connected with lapped joints at the corners and then there is considerable shaping required. I'll show the steps I used to create these parts and their joints.
First, here is a look at the complete model in SketchUp: Note that I did not scoop the seat in the SketchUp model, and the multiple angled lines are sight lines for the spindle sockets.
Step 1: Create the shaped faces of the combined Arm and Crest Rail. Use only one-half of the symmetrical combination as the other half is duplicated later, flipped and connected.
I was able to trace over a scanned image of a top view of the Settee to quickly achieve the flat face shown below. Notice the lapped area of joint between the two pieces. Now create components for each of these pieces, including the lapped area in both components.
Step 2: Edit the components and use the Push/Pull Tool to give the two parts their thicknesses. Also using Push/Pull, leave a notched area on the underside of the Crest Rail so that the Arm exactly fits.
Step 3: To create the ogee shaped transition on the Crest Rail, make a shape perpendicular to the lapped area.
Step 4: Use the Push/Pull Tool to push the shaped cutter all the way through the lapped area beyond the other side. Now we are prepared to do an Intersection to create the ogee.
Step 5: After Intersection there is quite a bit of clean-up with the Eraser Tool.
Step 6: More shaping is required on the Crest Rail. Create a profile of the shape or the rail's desired cross-section. There is a cove cutout in the back face of the rail, and considerable rounding on the top front of the rail.
Step 7: To create the cove cutout in the back, use the Push/Pull Tool along with the Ctrl Key and push the cove shape beyond the other end. This prepares us for an Intersection to complete the cove cutout.
Step 8: Execute an Intersection then clean up the waste with the Eraser Tool.
Step 9: I scaled up by 10 before doing the Intersection of the front shape. This will help with a quality intersection at the ogee shaped corner area. Also, I used Follow Me to make the shape properly turn at the corner. So the path included an arc line at the corner lapped area.
Step 10: After Follow Me, do an Intersection and carefully clean up the waste at the corner lapped area.
I've constructed the piece - the seat is Monterey pine, and the remaining parts are from local ash. No finish yet.
posted in: blogs, chair, period interpretation
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Learn the art and science of designing furniture in SketchUp with Fine Woodworking's official blog. Moderated by a devoted community of woodworkers, we feature step-by-step SketchUp tutorials on designing components, downloads of pre-built 3D models of furniture parts, and news and information about the evolving world of digital furniture design.
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