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Woodworking blog entries tagged with 'selig'

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Jensen-style Z-Chair #22: Side structure - Glue-up

06-25-2019 01:28 AM by Ross Leidy | 0 comments »

I’m going to savor this part of the process, so progress photos will be a little slow in coming. I started by gluing the back stile to the long arm support/rear leg. I made some clamping blocks to provide some parallel clamping surfaces. For the long arm support, I made a wedge of soft paulownia and put a concave edge on it to approximately match the edge profile of the long arm support. For the rounded tip of the back stile, I used a scrap of BB ply with a similar rounded curve...

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Jensen-style Z-Chair #21: Side structure - Edge round-overs

06-23-2019 09:54 PM by Ross Leidy | 2 comments »

If you happen to look obsessively at photos of the Z-chair, you’ll notice that outward-facing edges of the side structures are rounded more heavily than the inward-facing edges. This reduced round-over makes practical sense at the top of the back stiles, where too much rounding would eliminate the flat surface where the rail attaches. To a lesser extent, the same applies to the front seat rail. To replicate this (or approximate it), I’ll use a 1/2” radius bit at full...

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Jensen-style Z-Chair #20: Back stile tapers

06-23-2019 02:10 AM by Ross Leidy | 0 comments »

As best as I can determine from photos, the back stiles taper inward a little from above the joint with the arm to the top end. I didn’t notice this until long after I had cut the mortise for the upper back rail. That mortise is 0.8” deep in the 1” thick stock, so it had to be a gentle taper so that I wouldn’t expose the bottom of the mortise on the outside of the stile. I marked out a layout line about 1/8”+ at the top end of the stiles tapering to nothing ...

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Jensen-style Z-Chair #19: Seat frame - mounting holes

06-21-2019 02:47 AM by Ross Leidy | 6 comments »

The sides of the seat frame will become structural members for the side assemblies, keeping the legs from splaying away from each other when there’s weight on the chair. So, it’s important that the seat frame is mounted securely. In Tango’s disassembly photos of an original chair here, there are a couple of dowel pins on the top edge of either side of the front rail that index into holes in the bottom of the seat frame. There are then screws that hold the frame in place, ...

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Jensen-style Z-Chair #18: Dry fit with arms

06-15-2019 06:04 PM by Ross Leidy | 5 comments »

Time for another dry fit to see how the arms are looking. It’s looking more and more like a chair. I’ll need to do some adjustment on the back stiles at the arm joint. Due to my 1” stock, the joint height needs to be reduced from the design height. I did a sit test, too, because I was/am worried about the long arm-support-rear-leg piece being compromised with the two close mortises where the lower rear rail and back stiles attach. There was creaking due to n...

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Jensen-style Z-Chair #17: Arm shaping

06-14-2019 01:25 AM by Ross Leidy | 2 comments »

This feels more like woodworking. I started with some layout lines for a chamfer along the lower/outer edge of the arms. I was conservative with their placement so that I wouldn’t remove too much wood initially. Ultimately, this will all be rounded-over.The extra length at the tip I allowed for slop, and it will remain for clamping and then trimmed. Proof that I do sometimes use hand tools. A freshly-sharpened plane iron is a wonderful thing. There’s room for a b...

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Jensen-style Z-Chair #16: Arm mortises

06-11-2019 04:46 PM by Ross Leidy | 2 comments »

Here the underside of the arms has been trimmed away to leave about a 5/8” thickness along the inside edge. Mortising the underside of the arm: Mortising the arm support/rear leg: And that’s the last of the mortises for the chair.

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Jensen-style Z-Chair #15: Arm rough shaping and fitting

06-09-2019 07:52 PM by Ross Leidy | 4 comments »

The arms on the original chair have a little raised lip along the outside edge that tapers-off to nothing at the front tip of the arms. I’ll try to do something similar. I used the CNC to sculpt the long, shallow concave section on the top of the arm using a 2” diameter cove bit. With the rough shaping done on the top, I moved on to beveling the two ends of the arms where they join the back and arm support. I cut shy of the sketched c...

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Jensen-style Z-Chair #14: Back stile dowel holes

06-08-2019 10:36 PM by Ross Leidy | 5 comments »

The 1/2” dowel holes in the back stiles where the arms attach are not at right angles to the joint. I transferred a line to the side of the stile that was parallel to the dowel, and then clamped some blocks to either side of the stile to elevate one end so that the line was at right angles to the work surface. Then drilled the dowel holes on the drill press.

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Jensen-style Z-Chair #13: Rear upper rail mortises

06-08-2019 10:25 PM by Ross Leidy | 0 comments »

I waited until the back was dry assembled before marking the locations for the upper rail mortises. They needed to be located based on the already-cut mortises on the back stiles that were done on the CNC machine.

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