The Policeman’s Boot Bench is now glued up, which seems like a fitting point at which to put it to one side for a couple of weeks while I fly out to Chicago for a family break followed by Handworks in Iowa. I’ve never had a glue-up that I’ve enjoyed – as soon as the glue bottle comes out I always feel the pressure ratchet upwards. But that aside, assembling the Boot Bench went smoothly and without any real incident. The key I think for any smooth assembly is to have a clear plan of attack, to have all the clamps opened to the right capacity before you reach for the glue, and where possible to break large scale assemblies into more manageable stages.
Hide glue flows better when it is warm, so I always stand my glue bottle in a mug of hot water for 30-40 minutes before I start applying glue. I keep meaning to invest in a heated glue pot and start mixing up my own hide glue from granules, but until then I’ve found that Titebond liquid hide glue is an effective (and cost efficient) way of using cows as an adhesive. While the glue was warming up I did a final test fit of each of the shelves in their respective dados to make sure that they still fitted and there had been no further wood movement – the middle of a sticky and stressful assembly is definitely not the moment to discover that you need to make adjustments to a component! As the shelves had been well seasoned and then lying in stick, they were all very stable, and 7 of the 8 ends fitted perfectly. The eighth was a little tight in the dado, but a couple of localised passes with a small shoulder plane removed the few shavings necessary for a good fit once again.
As there were a significant number of components to be fitted, and I have only a modest selection of large clamps, I decided to approach this assembly in two stages. The first stage was to glue the dovetails fitting the sides and top to each other. To ensure that the sides were fixed square to the top, I slid the bottom-most shelf in place (without any glue) – this effectively gave me a four-sided carcase to clamp up, and to check for square. The dovetails were hammered home using my 24oz joiner’s mallet by Blue Spruce Toolworks, and then left in the clamps for two hours for the glue to cure.
The second stage of assembly was to fit the shelves. The dado joint involves a lot of end grain in the gluing surface, and end grain can have a tendency to wick glue away resulting in a dry joint. To avoid this, I sealed the end grain of the shelves, and the dados, but giving them a thin coat of hide glue five minutes before I started to glue and fit the shelves. This glue was absorbed into the end grain, which prevented the second application of glue (when fitting the shelves) from being absorbed. Hide glue also acts as a lubricant, which meant that the shelves slid most of the way home under finger pressure, and required only a couple of gentle taps from the mallet to get them in the right position. I then clamped up the edges of the sides to establish good even pressure across the dados while the glue cured.
Pre-finishing the interior of the Boot Bench definitely paid off when assembling the casework, especially as the four shelves resulted in a significant amount of squeeze-out. My usual method for removing squeeze-out during glue-up is a toothbrush dipped in hot water, as well as judicious use of damp paper towels. The hide glue wiped easily off the shellac and wax finish, which meant that I could take my time in cleaning up all of the internal surfaces.
Once the glue had cured for the second stage of the assembly I removed the clamps. There is still plenty to do on this project – the shelves need to be planed flush to the front of the casework, the backboards need to be processed and fitted, and the external surfaces need to be cleaned up. But the end is now in sight, and it feels good to have the main elements assembled before travel takes me out of the workshop for a couple of weeks. I’ll pick this project up again at the end of May, when I will start work on the backboards.