Building a Thos. Moser Design New Gloucester Rocking Chair #20: Pinning the Seat Tenons

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Blog entry by DustyMark posted 01-05-2013 07:28 PM 2762 reads 0 times favorited 5 comments Add to Favorites Watch
« Part 19: Wedging Spindles Below the Seat Part 20 of Building a Thos. Moser Design New Gloucester Rocking Chair series Part 21: Making the Arm Rests »

With the seat tenons wedged, it’s time to pin the tenons. I wedged the tenons first so that the cross dowel wouldn’t potentially prevent full travel of the wedge. I chose to pin 8 of the 14 seat tenons.

Pin the Seat Tenons

Drill the pins in 1 1/4”. This secures the tenon without going too far into the seat.

My dowels were closer to 13/64” than 3/16”, so I had to use a metal bit to drill the holes. Chips don’t eject as well from metal bit. Compounding this problem, the glue was still wet and formed a strong mix with the drill dust. This plugged up the bit pretty bad and caused a couple of the holes to smoke. I could have caught my chair on fire!

Tap the pins in place and chair assembly is done for the day. Liquid hide glue takes a full 24 hours to cure. There are no clamps since everything is held in place by pins and wedges. I’ll have to wait until after church tomorrow to sit on it.

Plug the Brace Holes

With the chair already positioned, I finally plugged the brace holes. I can’t resist the urge to tap these in place, so I clamp the unsupported sides to prevent a blow-out.

Next, turn six spindles for the arms…

-- Mark, Minnesota

5 comments so far

View stefang's profile


15881 posts in 3387 days

#1 posted 01-05-2013 07:44 PM

Great idea with the clamps Mark. Those little tricks can sure save a lot of grief and I’m sure you don’t want any either at this stage. Have a great Sunday at church and with your chair!

-- Mike, an American living in Norway.

View lysdexic's profile


5256 posts in 2675 days

#2 posted 01-05-2013 08:59 PM

After following along, I want to sit in it too.

-- "It's only wood. Use it." - Smitty || Instagram - out_of_focus1.618

View DustyMark's profile


346 posts in 2123 days

#3 posted 01-05-2013 10:51 PM

It’s taking willpower not to sit in it before tomorrow afternoon. I want to feel the final flex of the back assembly. This is a very interesting chair design and my most challenging project to date. My ball and claw coffee table took a lot of effort in carving technique, but this chair has been a true “mind-boggler” at times.

-- Mark, Minnesota

View a1Jim's profile


117160 posts in 3630 days

#4 posted 01-05-2013 10:55 PM

Keep on trucking Mark,I’m enjoying the ride.

-- wood crafting & woodworking classes

View DustyMark's profile


346 posts in 2123 days

#5 posted 01-06-2013 12:32 AM

Thanks Jim. I’m sharpening my roughing gouge and then calling it a day.

I do most of the shaping of these tapered spindles with a roughing gouge…real turners would cringe! However, rolled on its side, it produces a smooth enough cut prior to the sanding block. I’ll turn six short spindles and start work on the arm rests tomorrow! I’m hoping to assemble the arm rests on Monday.

-- Mark, Minnesota

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