Spackle & Sawdust

OK, so I “cheated.”

I typically assemble face frames with pocket screws. It’s simple, fast and strong enough. Since this face frame is composed of 1″ x 3/4″ members, pocket screws seemed a bit weak to me — I’d only be able to use a single screw in each member, which would allow it to “spin” somewhat. While this would be minimized greatly after gluing to the carcass, some “twist” could still occur over time. Since the drawers will feature prominently displayed through dovetails, I figured dovetailing the face frame would be both practical and design appropriate. I briefly considered bandsawing and chiseling the joinery, but with a dozen to do and the drawers looming, I couldn’t see spending the amount of time it would take me to do this entirely “by hand.” Opening up my router bit drawer, I discovered a 3/4″ dovetailing bit I seem to recall buying to produce sliding dovertails for another job. So, I “cheated” and built a quick fixture to help me knock off this part of the process.

Test Fit

Without too much fuss, the bit and fixture process yielded some very nice, tight and clean joints.

Completed and Sanded

Once the glue dried, I sanded it from 120 through 220 and propped it up for this picture. Not only do dovetails create very strong, tight joints, they’re also “self squaring” which meant I didn’t have to make any adjustments to square it up during the glue up process.

Not too tight, not too loose…

I’m not certain, but there was likely an audible sigh when I first test-fit the frame to the carcass. It fit snuggly, without any gaps on the sides and aligned flush with the dust panels. Just the “right amount” of persuasion was required to complete the pairing. The trickiest part of the whole process was the glue up. I had previously cut a continuous slot along the front of each dust panel. I referenced my plate joiner’s fence off of this slot and proceeded to cut, more or less randomly, matching biscuit slots along the back side of the horizontal members of the face frame. Even with the A/C running, it was in the mid 70′s in the shop and there wasn’t much open time on the glue — and with around 36 biscuits to glue and set in place, this was gonna be tricky and hectic. Also, since the middle dust panels weren’t open, it was a bit tricky for the clamp to find purchase on the 1/4″ ledge around the panel. In my haste I was a bit overly-generous with my glue application to a few spots resulting in greater than typical squeeze out…and a longer than typical amount of time spent wiping up the excess. There are a couple spots that will require some additional sanding, but otherwise…success.

Fresh from the clamps

A few hours later the clamps were removed and the completed case is just awaiting its drawers and top.

The Day Begins

I started the day by marking out and cutting the slots for the biscuits into the inside faces of the sides and back. Following this, I decided to “rehearse” the glue up of the main carcass — the sides, back and bottom front apron. After yesterday’s “flip” I have to admit to being a bit apprehensive about this step, but, lessons learned, I was watchful of the sides and never came close to dropping one this time. The green tape you see is there to protect the legs – I had preserved the offcuts from shaping the legs and I taped them back in place during clamping operations.

Dust Frames

My daughter has a lot of clothes. For the dressers I built for our first two children, I used simple open dust frames. I never truly understood the purpose of solid dust panels until one day, while trying to remove a sweater from my daughter’s dresser, I wound up in a tug-o-war with the dresser drawer. It seems that some clothes in the overflowing drawer had wedged themselves in the opening of the dust panel, effectively preventing the drawer from opening fully. I decided that closed panels were the way to go from now on! Since there’s no drawer below the bottom frame, I figured I could leave that one open. To build the panels, I purchased S4S dimensional poplar from HD — at $1/lf, it seemed worth it to avoid the prep time and wear on my planer knives. To simplify the assembly, I used butt joints and pocket screws to hold them together.  Since I had dadoed the full length of the frame members to accept the panels, I had to go back and fill them where the pocket screws would “bite,” but I think this was a fair trade vs. doing stopped dadoes or tenons. I also ran a thinner dado/slot on the outside of the frames to accept the biscuits from both the inside of the carcass and the face frames when they’re installed. The happiest moment was when the first (and then the second, and third) frames slid in cleanly and tightly onto the waiting biscuits.

Thankfully the corners were tight since I didn’t really have a good clamping solution for the middle one!

The completed carcass…

Next up: Walnut face frames!

Construction Begins…

In between trips to the zoo, the Children’s Museum and backyard “play dates” with the kids, I’ve logged some decent shop time on this project the past couple weekends. Last weekend I dimensioned the lumber and assembled the two cherry and walnut frame-and-panel sides. Due to a misaligned rip fence, I wound up with a mortise and stub-tenon joint that simply wouldn’t close. I decided to lop off the tenons and attach the rails to the stiles with splines instead. This worked fine, but resulted in weaker joints than I really need here. I really should have used a larger loose tenon…but more on that later.

In the midst of this work, I picked up a used Grizzly 24″ dual drum sander. I couldn’t resist running these panels through this beast. It made quick work of sanding them perfectly flat…awesome.

Curvy Legs

After cutting the mortises in the leg blanks for the sides and front and back members, it was time to cut the compound curves. This was the part I was really looking forward to! In the past, I would have done this with a template and a flush trim bit. There were two problems I saw with this approach. First off, I’m always anxious about tearout when flushing up cherry. Usually this can be avoided by rough cutting very close to the line — but nonetheless I’ve still occassionally nicked a piece this way. The other issue was a bit more serious – my largest flushing bit has a maximum capacity of 1-1/2″. Since the legs are 1-3/4″ on each side, I’d have to get a longer bit. I’m uncomfortable enough with 1-1/2″ of high-speed exposed spinning carbide. I decided to try Norm’s usual method. About six months ago I picked up the Ridgid oscillating spindle/edge sander. Ya know, the one it seems like everyone has. I really like this tool. I cut to within 1/16″ (sometimes within 1/32″) of the line and then finished the cut off with the edge sander and the standard 80 grit belt. Worked like a charm. I think the results are just beautiful.

Pass the Biscuits, Please…

With the legs cut, it was time to glue up the sides. While these “cooked,” I turned my sights to the back. I had originally planned to use a section of 1/2″ plywood panel capped top and bottom with a 4″ bottom/2-1/2″ top cherry “rail” joined with mortise and loose tenons into the back legs of the side panels. Upon further reflection, I made a very minor modification of my plans and used 3/4″ plywood instead. I did this for two reasons. When thinking through the joinery for the dust panels and final assembly of the carcass, I realized that I needed to first assemble the sides, back and front rail and add the dust panels after this sub-assembly. In the past I’ve designed joinery that required simultaneous glue up of the sides, back and dust frames — and this is simply far too much for one person to juggle. I also didn’t leave room to cut dadoes in the sides for the dust panels and didn’t want to introduce glued on supports either. I decided that the easiest thing to do would be to cut biscuit slots in the sides and back and then cut a continuous slot around the dust frames so that they could simply slide into place in the partially completed carcass. To have enough depth for the #20 biscuits, the back would need to be at least 3/4″ thick. The other reason was simply that the 1/2 ply I had was a low quality birch from HD and I happened to have a 3/4″ sheet of cherry veneer ply left over from a prior job. So this kinda just worked out.

Ouch!

While I was dry assembling one side to the back to mark out for the biscuit slots, the side slipped, did a flip and slammed onto the floor. Unfortunately, the shock split the stiles – one on the top and the other at the bottom – at the point where the spline ended. My “fix” was to install some pocket screws to help hold the split together. The dust panels should provide sufficient additional reinforcement, so I’m not terribly concerned about the longevity of the sides…however I will need to do some work on the outside to obscure the visible checks.

Tomorrow is another day

At this point I’ve got the sides completed, the cherry rails biscuited and glued to the plywood back, and the lines for the biscuit slots to hold the dust frames laid out and ready for the lamello/plate joiner/biscuit cutter/what-have-you to do its thing.

I hope to build the dust frames and assemble the carcass by the end of day tomorrow. I’ll let you know!