Router Plane

Monday, August 23, 2021

Greene & Greene End Table - #14 Base Glue-up

Gluing all the pieces together is next.  Because there are a lot of joints and pieces that need to be carefully aligned there is no way to put everything together at once within the glue setup time limits.  Breaking it down into a few manageable stages will give me the time needed without rushing through. 

The first stage is to glue the back’s lower front rail, two spindles, two top rails and the veneered panels together.  The drawing below shows the pieces that will be glued together as follows:

  • With the veneered panels in place glue is applied to the top rails and spindle joints
  • The top of the spindle is adjusted to make sure it is flush with the top of the top rail.  A screw is then run in from the spindle into that rail pulling them tight together.  The same process is repeated for the other spindle.
  • Glue is applied inside the two spindle mortises in the bottom rail.
  • The spindle tenons in the spindle/rail/veneered panel assembly are then installed in the bottom rail mortises.
  • Both legs are put in place without glue and everything is clamped.  The assembly’s diagonals are measured to make sure the assembly is square.
  • A clamp is used to pull the spindle tight to the bottom rail then a screw is put in locking the spindle in place to the bottom rail and the clamp is removed.  The same is done with the other spindle.
  • Going back to the lower, upper rail a screw is run from the spindle into that rail pulling them tight together.
  • All the joints are check for glue squeeze out and cleaned as required.

The same process is followed for the front frame.  Here both are glued and clamped up curing.  Everything went smoothly, not rushed and with no problems.  

The next day the clamps are removed and the unglued legs are taken off.  The inside of the leg mortises get glue applied then they are put back on the already glued interior frame and the clamps are reinstalled.  When clamped the assemblies look the same as the photo above.  This completes the glue-up of the front and back assemblies.

Tying the front and back assemblies together to complete the base framework is next.  That’s done by gluing in the upper side rails along with the veneered panels and the bottom rails.  This drawing shows the pieces involved.

Before the gluing starts all the above listed pieces get dry assembled together with the front and back assemblies.  That looks like this.

Next is drilling some pilot holes for the screws that will lock the front assemblies and the sides together.  The drawing below is a section of the front left leg, side rail and top rail cut half way down through the tenon in the top rail.  The top rail had a countersunk pilot hole drilled through the tenon before the front/back assemblies were glued together.  What now needs to be located and drilled is the hole shown in the side rail’s tenon.  It was not marked before because I wanted the front/back glued up solid first.   There is a little gap between the end of the side rail’s tenon and the side of the top rail’s tenon.  That’s for a couple of reasons.  First, is in case a little glue gets built up when the top rail and the leg are glued together.  Second, is because I want the shoulder of the side rail’s tenon pulled up tight to the face of the leg.  If tenon is sized to the exact depth and I put too much glue in the joint, some debris get in there or any other obstruction then the rail can’t be pulled up tight to the leg.

This is what the assembly looks like in real life.  You can see the countersunk hole at the bottom of the mortise.  I used a pencil to mark the center of the countersink hole in the end of the sider rail tenon.  All 12 of the tenons that get screws get marked the same way.

After the holes are marked the base is taken apart so I can drill the holes.  In the top photo the piece to be drilled, which in this case is one of the top rails, is clamped in a vice and plumbed vertical.  You can see the pencil mark at the end of the tenon.  The drill has a 3/32” bit for the pilot hole of the #6 x 1 ½” screw and the piece of tape marks the hole depth.   Below the drill is the punch I use to make a starting dimple in the tenon.  Same process for all the holes.  The bottom photo is of the completed pilot hole.

Before reassembling the base, I checked the mortise where the tenons of the top rails had been glued into the legs.  The top photo shows a little gob of glue that I was concerned might cause a problem when I press fit the plug in place.  Only about half the tenons had this problem.  A couple of whacks with a wood chisel popped the glue right out.

You would think that I could do the final glue up but not quite yet.  There is one more step.  The whole base needs to be reassembled and the screws run into the just drilled pilot holes.  There is not a lot of wood around the screw that goes into the tenons and I wanted to make sure none of them were going to split while installing the screw.  For peace of mind, I did wax the screws to act as a lube.

Final assembly consists of spreading glue in the mortises then assembling and clamping all the pieces.  This glue up had 12 mortises and two veneered panels to fit together.  Once that hectic process had been completed the diagonals were check to see if the frame was square (it was).  Last is to put the screws back in.  Once glued up is looks the same as when I did the first dry assembly.

Next Up – Drawer Divider/Guides & Problem Part 1

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