
The client and I started with several photographs of design elements that
she wanted incorporated into the chairs. I drew up concept drawings and once
approved, I constructed a complete prototype out of poplar and made the
first set of ¼” hardboard templates for all the curved pieces.
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These are all the master templates. We made several changes to the design
after seeing the prototype. We refined the legs, added quite a bit more
curve to the bottom of the vertical side pieces, changed the angle of slope
to the back, altered the design of the curved crest rail, and reduced the
thickness of the walnut reveal on all exposed edges that would not be
covered with fabric. We basically refined the whole designed. The prototype
templates were reworked several times.
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After rough cutting all the lumber to oversize and milling to four-square, I
marked the pieces using the templates and trimmed “to the line” on the band
saw. Using double stick tape, I then routed all the curved pieces to the
templates on the router table. |

Because the legs curve on two planes, they would need to be cut in one
direction, then using double stick tape, the block would be re-assembled and
sawn on the second side.
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Here are the front legs rough cut to shape. The finished legs will be 1-1/2”
square at the top, and taper and curve to a 1” square at the bottom. To
accommodate the dual plane curve, the leg blanks were milled from 12/4 stock
to a 2-7/8” finished blank. Notice all the waste that is removed during the
preliminary shaping. |

The back leg members are cut from an 8/4 blank that is 5-1/2” wide.
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After a lot of cutting and routing, all the main frame pieces are blanked
out, but there is still a lot of shaping, hand sculpting, routing, and
rabbeting left to do, and of course all the mortise and tenons still need to
be cut.
The project calls for six chairs, and because it would be very difficult to
go back and re-create any one individual piece, I have made two or three
extra pieces of each part as a backup in case something goes wrong, or gets
damaged, along the way. |

I chose twin mortise and tenons for these joints and used my FMT mortise and
tenon jig for perfect fitting joints. |

The mortises were cut in all the legs before any more sculpting was done to
give me as much solid, square stock as possible to clamp to the FMT jig.
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For the next week or so, using the oscillating spindle sander, spokeshave,
card scrapers, rasps, files, and sandpaper, I hand sculpted 32 legs to final
shape. It took about 40 minutes a leg.
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Because the rear legs join at 45 degree angles to the back seat members, I
chose to use loose tenons in these joints. I made a router jig/template to
cut this set of twin mortises in all the back frame pieces. |

With this many chairs and this many tenons, I made long strips of loose
tenon stock. I used a 5/16” bead bit on the router table to form the edges
and sawed some glue relief grooves on each face.
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Using a stop block, I cut them to length on the table saw sled.
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With the lower frame parts and the legs completed, it was time to start
working on the upper chair backs and supports. The curved upper back crest
rail would be made by bent lamination. I re-sawed all the rail stock from
5/4 stock and maintained flitch order so the rail would appear as solid
wood. I constructed the form and used my vacuum press to laminate two backs
at a time.
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The laminations were jointed on one edge and ripped to width on the TS.
Using a simple set of support blocks stuck to the sled and a center line and
an alignment reference point of the sled's fence, I trimmed the ends. This
set up allowed me to make these cuts at 90 degrees to the sled base and
parallel to each other. This is very important because the ends will be
mortised and tenoned to the side pieces. |

I built another fixture to hold the curved back true and square in the FMT
and cut the mortises in the ends. |

These back crest rails required a lot of work. After the bottom edge of the
back was cut to a gentle curve, the top was also shaped, and a rabbet for
the upholstery webbing and fabric had to be cut on both the front and back
edge of the curved bottom. I just clamped two rails together at a time to
support the trim router and cut them all.
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Another curved fixture and router jig was made just to cut this one small
rabbet to accept the center back support. This support is a very important
part of the chair’s internal structure. |

The upholsterer’s rabbets needed to be cut on every chair member that the
fabric will attach to. Here I am cutting it in the rounded rear seat piece. |

After cutting the rabbets in all the front, back, and side pieces, I dry
fitted all the frame structure together and made this corner router template
to set on top of the assembly and rabbet the upper legs to match the sides.
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The front leg method won’t work on the back legs due to the vertical
supports, so I made an MDF guide bar that I could clamp all around the back
of the seat in a horizontal line with the completed rabbets. I used a flush
trim saw to notch the rear legs to make the upholstery line mate with the
frame rabbets.
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I drilled and dowelled the vertical side pieces and the side frame. They
will be attached with epoxy and two screws from below. The side piece is
still not totally shaped yet.
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The tapering and shaping of the back legs is finished and this is a quick
dry fit of the four loose tenons in each leg. |

There will be an “upholsterer’s bar” that runs horizontally across the back
vertical pieces about 1 ¼” above the seat level. This will be used to
stretch the webbing and fabric. I had to layout and dado all the parts that
will support this bar before glue up. |

I glued the chair up in four phases. The two front legs and the front seat
rail is the first phase. The sides, back seat rail, and back legs were glued
together next, using this front assembly for alignment. Then the two
assemblies were glued together, and finally all the vertical members of the
back were glued up last.
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After the final glue up, the internal corner blocks were attached and the
countersunk screw holes for the side rails were plugged from the bottom. |

I made one more bent lamination form for the upholsterer’s bar and glued
five pieces of 1/8” bending ply together in the vacuum press. I made one
large sheet of the bent stock.
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After the sheet came out of the press, I sliced it into the individual bars. |

Here the upholsterer’s bar is glued and screwed into place. Because the back
webbing and the seat fabric are all pulled under, or attached to the curved
bar, this is an important part of an upholstery frame piece of furniture.
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After all the construction and glue up, there was still quite a bit of hand
shaping and sanding left to do to smooth all the joints together, and some
detail shaping like this top rail and back joint. |

I had to try to match an antique walnut table that had a very gold walnut
tone. The finish schedule was a blend of Behlen’s Solar Lux NGR dyes,
American Walnut and Golden Wheat. Followed by a brushed on coat of 1-1/2#
amber shellac, rubbed back with 0000# steel wool, and then three coats of
Minwax Tung Oil Finish. |

The Chisel and Bit medallion gets installed under the back seat rail.
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Here is the set of six chairs ready to go to the upholstery shop. |

This is a very high end upholstery job. The seat is done with stretched
webbing and hand tied springs. These chairs are very comfortable. |