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Assembling the carcass

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Assembling the carcass

#1

Assembling the carcass 

Bill Tindall, E.Tn.



Counting the frame and panel ends, 68 joints and 70 parts come together. The frame and panels were assembled first. The carcass assembly involved 60 joints and 60 parts. The dovetails were glued in the sides with hide glue. The runners are held in place with floating tenons pinned but not glued.

Assembly was all at once. Bringing it all together at one time ensures it will be square if the joints are well made. In this case diagonals measured 1450 and 1449 mm, good enough.

Step 1 is to find a level place on the floor!

The whole of the case was dry fit. Next, all but the top and bottom parts were removed. These dividers were stacked in order to minimized screw ups during reassembly. One at a time glue was painted on the dovetail and socket. A front blade was installed and flushed with the front, runners inserted and the back divider slid into place. An optimum fit of the dovetails leads to smooth assembly. Bindy joints were fixed in the dry fit. The top and bottom pieces that had been left in place after dry assembly were removed in turn, glue applied and reassembled. The whole process took about 25 min.

Vertical dividers need to be fit in place next and molding applied. Then it is on to the tedious task of making drawers. But it is less tedious to fit drawers into a square case ;)

Re: Assembling the carcass

#2

Re: Assembling the carcass

roger lance

Congratulations......that is a significant achievement!!

To bring together.....glue.....clamp.....and get a square carcass in the end with that many joints......and still have your sanity(or marriage) intact.....that is remarkable.

Do you design a piece with the glueing stage in mind??.....do you look to make it so the glue-up can be done in an orderly, manageable way??

Re: Assembling the carcass

#3

Re: Assembling the carcass

Bruce, a MN Galoot

I can’t imagine assembling that many pieces in just 25 minutes. Congratulations! Do you use white glue or titebond?

Re: Assembling the carcass

#4

I left out a key point

Bill Tindall, E.Tn.

I have pre-adjusted clamps at hand to pull joints into submission if they don't slide together perfectly. Recall, uncured glue has little shear strength but terrific impact strength. Don't beat-pull or push. But once the joint is pulled together the clamp is removed.

I do not leave clamps on as the glue sets. Clamps distort a carcass. It might be square when the clamps are tugging on it, and relax to some unanticipated state when they come off.

Re: Assembling the carcass

#5

Re: Assembling the carcass

Bill Tindall, E.Tn.

"To bring together.....glue.....clamp.....and get a square carcass in the end with that many joints"

If the joints are well made it goes together easily and will come up square with little coaxing. There is little clamping involved. Sometimes I have to pull the sides in temporarily to squeeze glue out from the ends of the tails.

Do you design a piece with the gluing stage in mind??..... Once I did not and had a bad time coming up with a gluing strategy.

The dry fit reveals any problems and presets clamps that may be needed to pull up a joint.

Re: Assembling the carcass

#6

Re: Assembling the carcass

Bill Tindall, E.Tn.

I use liquid hide on slidy joints.

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