The Evolution of a Writing Desk

CharlesWilson

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Jan 22, 2007
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This project is based upon a writing desk originally designed by Thomas Jefferson, on which he is reputed to have written the Declaration of Independence. There is an article written for Fine Woodworking that covers it in reasonable detail:
http://www.taunton.com/finewoodworking/ProjectsAndDesign/ProjectsAndDesignPDF.aspx?id=2667  (requires membership to view)

I started constructing it from walnut that remained after finishing my Media Cabinet. I decided to use solid wood, and arrange the grain so that it wouldn?t suffer damage from seasonal humidity changes. (In 50 years or so, we will see if I succeeded or not.)  The following pictures show my original effort.

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This unit does not yet have a drawer pull installed. The drawer face is on the right. Notice that its grain direction is vertical.

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This is looking at the unit from the back, with the drawer open.

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When the front board is opened, the writing surface is revealed. I made a pencil tray insert for the drawer (with a hidden recess underneath for concealing diamonds and other treasures). I made this object as a gift for a friend, so I don?t have pictures of it with the protective writing surface and drawer pull.

This project is entitled The Evolution of a Writing Desk because there is now a second generation design intended to address some weaknesses of the initial design. This item is intended to be traveled with, and the drawer should have some sort of latching mechanism. I wasn?t completely satisfied with having a crease in the covering used as a writing surface. And, though walnut is beautiful, I wondered how the desk would look in other woods.

Generation one went from outside to inside, with the case being constructed first, followed by the drawer being constructed to fit inside the opening. Generation two began with the drawer being constructed first. I had decided to make six units, two of each species (oak, cherry and walnut).

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Drawer front bottom and back were joined with box joints with grain going from front to back of drawer. Drawer sides were sliding dovetails, again with grain going from front to back. The box joints and sliding dovetails were glued. Wood thickness was a little less than 3/8 inch.

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The drawer sides were also dovetailed at the ends, but not glued to front and back pieces. An drawer face was glued onto the front of the drawer.

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Above is a dry fit of the drawer. Below are the components of the 6 drawers.

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The case into which the drawer slips had all of its grain lengthwise, and the sides fit inside rabbets in the top and bottom pieces.

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The grain of the closed end of the case is horizontal, and it floats in dados between the two sides of the case. A small rabbet is made into the top of the open end of the case to stop the travel of the drawer into the case.

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The writing surfaces were cut to uniform size, as were the spacers, below.

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And, with a little hocus pocus, everything comes together. (Keep your eyes on those ovals at the top of the front board below.)

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Those little ovals are dominos which are used to locate the front board. They are necessary because of the extra pair of hinges. I have been experimenting with different writing surfaces, and will eventually find the right material. The notches in the board on top are used for Velcro strips that keep the writing surface from inadvertently opening.

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Here is an oak model with the Velcro installed.

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And now, for the drawer latching mechanism. A slightly modified domino on the side of the drawer, with a notch cut on the lip of the bottom will provide the latching action. The spring is just a length of wood screwed into the side.

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The circular button, made with a plug cutter, pushes the end of the domino back into the slot to allow the drawer to open.

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A keyhole router bit is used to make the channel for the plunger. That yellow portion of the photo is a bit of spring steel (from a measuring tape!) screwed into the wood strip that has the button glued to it.

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There are only five of the Generation Two desks shown here because my daughter had absconded with one before I could get them all into a picture.

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Excellent step by step Charles.  Some great ideas to evolve the design.

I have debated making one of these for years.  I believe the original is in the Smithsonian if I'm not mistaken.

Can you provide the overall dimensions for us?

Neil
 
Great work. I wish I'd seen that before the LOML went to school, she'd have liked something like that. Great use of the Domino, I especially like the lock.
 
Neil:

The overall dimensions (in inches) of the Generation 2 desk are as follows:

Case (outside):    14.75  x  10.25  x  2.125

Total height of assembly:                    3.75

Drawer (outside):  14.25  x  9.5      x  1.75

Drawer (inside):    13.5    x  8.5    x  1.125

Bill:

The lock makes a satisfying "click" sound as the domino snaps into place.

I will probably have to do a recall on my Generation 1 unit to install the locking mechanism. Early attempts at a locking or latching mechanism included using rare earth magnets as well as mechanical latches, but they weren't all that effective or pleasing. Now there is no need to worry about the drawer falling out during transport as long as you hear that "click" when the drawer is closed.
 
nickao said:
I like this a lot. I made a Jefferson copy back in the day. I have always loved the little writing tables. They are tougher to make then they appear, that's for sure.

Anymore pics of the process with tools, jigs etc? Maybe of the Domino in action.

Great work Charles.

Oooh curly Walnut, Sweet!

Nickao

I concur with Nick!
Charles, do you think you could add some more process notes on this project?  Maybe just a few more steps you used to achieve each part?
Matthew
 
Matthew Schenker said:
nickao said:
I like this a lot. I made a Jefferson copy back in the day. I have always loved the little writing tables. They are tougher to make then they appear, that's for sure.

Anymore pics of the process with tools, jigs etc? Maybe of the Domino in action.

Great work Charles.

Oooh curly Walnut, Sweet!

Nickao

I concur with Nick!
Charles, do you think you could add some more process notes on this project?  Maybe just a few more steps you used to achieve each part?
Matthew

I will be able to put together these details in a week or so. Most of the photos have been taken, but I don't have the time right now to put anything together.

Charles

 
Nick, I am sorry that I will have to disappoint you, but the Domino machine didn't see all that much action in this project, although three dominos were used in each Generation Two unit. With the top held in position, I simply set the machine to its minimum width, set the fence so that the Domino was in the middle of the 0.75" x 1.00" separator board, and indexed from each edge the standard 37mm provided by the locator pin on the Domino. Those two dominos were glued in place and sanded down enough so that they didn't stick in the upper board. The third domino was slightly modified, and used in the latching mechanism.

However, there were a number of other processes involved that I will try to describe and illustrate here. I made a lot more use of the MFS than I thought I would. It dramatically reduced the number of custom jigs and fixtures needed to complete the project.

As I have mentioned in other topics, I adapted my OF1400 for horizontal routing as described by Jerry Work in his MFS manual. When I received my MFT a few years ago, it unfortunately (or as I can now say, fortunately) had a damaged extrusion, that was replaced by Festool, leaving me with a (FREE!) slightly damaged extrusion that I cut in half and used to facilitate horizontal routing. Although differing slightly from Jerry's design, it does the job. Here is the view of the assembly with the router mounted. The two black knobs are used to fasten the assembly to the side of an MFT.

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Here is a close-up of the height adjustment mechanism. The upper nut is used to move the OF1400 up and down.
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Here is a view from the side that is attached to the MFT. I used cardboard to bring the plywood surface flush with the extrusions. (I believe that Jerry used sheet metal.)
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The recess used to house the leg assembly of the writing desk was created with the OF1400 router using a template guide made from MDF. This template was created the old fashioned way with a jigsaw, rasps, and additional hand operations.

Since I didn't have a VS600, the box joints of the drawer were made on the table saw using a crosscut sled, a dado blade and a guide pin fastened to the crosscut sled:
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With careful adjustment it was possible to make reasonably good box joints. Below is a test piece used during adjustment:
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I proceeded from both ends of the board to the middle so that a full tooth was present on both sides of the drawer front and back. Thus, I didn't have to adjust my drawer size due to a limitation of the box joint tooling geometry. Here is a view of the drawer from the bottom:
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The MFS was used to bring the drawer sides and back to a uniform height after assembly. The height of the front of the drawer is a little more than 1/16" greater than that of the sides and back. In this way, a rabbet in the case is able to stop the drawer travel into the case. (After glue up of the case, it is very difficult to position anything such as drawer stops inside the case.) First, the MFS 700 was set to a rectangle larger than the drawer with the routing slide attached, and rested on blocks that were slightly higher than the drawer.
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The drawer and MFS were both clamped into position, and the OF1400 router was used to trim the height of the sides and back of drawer.

The keyhole slot for the draw latch was routed into the case after the case was glued together. The depth of the keyhole router bit is determined from the test piece shown in the original posting. The sizing of the MFS template for creating the keyhole slot is also determined from the same test piece. The 30mm bushing was used with the OF1400 router, so the MFS dimensions need to take that into account.
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The brackets were placed on the bottom of the MFS to position it relative to the case before routing.
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With the MFS secured to the bottom of the case, routing is accomplished by plunging the keyhole bit into the case bottom (at the location for the button, which is near the edge of the case) to its preset depth, locking down at this depth, and guiding the router to the far end of the keyhole.
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It has been a while since I have looked at the "Forum" (gasp, who could wait soooo long), and while perusing this topic, I would like to say that that is a very beautiful writing desk. I suppose I should visit more often, and see all of the great work that goes on here.

Regards, Colin
 
Thanks, Bill.

My creativity usually takes the form of modification of someone else's design.

My next effort will be a butterfly leaf table based on Jerry Work's design from his Domino write-up. I am planning to have two butterfly leaves in the middle. I'll probably use wooden slides (lifted from a Fine Woodworking article). I am going to hog together a prototype in order to figure out how to get the butterfly leaves to fit underneath with skirts attached and deploy without hitting the frame.

 
Charles,
  Really nice thread and beautiful work. Having seen one of them
in person helps me understand the quality of work that goes into each one.
 
Beautiful craftsmanship and design, Charles.  Thanks for your excellent photo essay of how you made these writing desks.

Dave R.
 
Good Afternoon,
Just a quick note: this project is featured in the November "Sysnotes" (a monthly newsletter distributed by Festool USA).

Unfortunately, Festool forgot to mention that the project was originally posted here in the FOG!

Once again, a great project Charles!

Stay in touch,
Matthew
 
Congratulations again Charles!   This is a project worth seeing and readfing about again.

Matthew, when my cabin sanding project was featured in Sysnoted last may, they did not mention the FOG either.

My guess is that there is probably a poliocy now in effect at Festool USA not to mention our forum.
 
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