Using plywood to make cabinets is not only economical the stability of the material offers more structural sense. But we need to deal with the exposed edge of the plywood. So, first order of business is to rip thin strips of solid wood, oak in this case, to cover the edges.
I chose 3/4 inch Baltic plywood. It has no voids between the ply, as some plywood do.
To make the final cut more accurately manageable I first cut the four parts into slightly over-sized dimensions. Tip: I personally find it easier to make the cut more accurate when the saw blade is removing a sliver (like shaving) and the tool is not under too much stress. I do this whenever possible specially on miter cuts when the blade is tilted. Note: a stop block should be used if the board is shorter than the miter guide.
Glue was used to join the strips to one edge. Tip: By simultaneously clamping two separate pieces, edge to edge, clamping force is applied more evenly. Ordinarily when clamping just one piece at a time it is mandatory to use a rigid straight edge between the clamp and the work pieces for even pressure; otherwise, use more clamps along the edge.
The strips were intentionally slightly wider than the plywood edge. The excess can then be made perfectly flush. A hand plane, sand paper, etc. will do that but here the router table and a flush trim bit makes quick work.
The 45 degree miter and final cut was made at the table saw. By the way, the table saw just makes it convenient but a hand-held circular saw guided by a straight edge will make the cut just as effectively. In fact, I used it in making the speaker cabinets. Tip: for large pieces of boards the circular saw will probably be safer than running them through the table saw.
Using this method of corner clamping to join the pieces is very effective. See previous blog on this method. (See the "featured blog" - Fixture for stronger corner joints by clicking the title at upper right hand)
The cabinet will be next to a plant stand by the table so I made the cabinet legs match the ones on the stand. Glue and biscuit joinery could have been used but I thought I'd show-case once more the effectiveness of pocket hole joinery, in the following photos. You will note that the pocket holes are going to be entirely invisible to the outside view.
The right angle accessory attachment to the drill makes easy work of driving the pocket hole screws on the inside; otherwise, the pocket holes should be placed outside (or, this is where biscuit, dowel, and other joinery should be used to avoid exposing pocket holes)
This blog is just all about the cabinet. A following blog will be about making the drawers. So, till then...
Unfortunately, the speakers now serve mainly as flower stands because smaller cube speakers for surround sound of today's new audio-video systems made the behemoths almost an anachronism. But someday, if only I can convince my wife to go along, I will have vacuum tube amplifiers playing vinyl records on a turn table (which I still have) with these speakers.
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