First, we need to drill out the holes for the screws that will hold them together. While the two layers of MDF are glued, the countertop and the MDF will only be screwed. The oak countertop, like any natural wood product, will expand and contract with humidity changes. If it were glued to the MDF, the difference in expansion of the two layers would cause the countertop to buckle and curl.
@cahudson42 I bored the holes in my sandwich top with a 3/4" power auger bit with the drill in a portable drill guide that kept it vertical and in a way a bit like a plunge router. The guide screw of the auger was dead easy to centre over the laid out grid points. The holes are dead straight and clean sided. The auger bit was new which probably helped. As stated I have three rows from an end vise running the length of the front as well as from the front vise and holes in the front apron to support long pieces as well.
Before you start cutting or drilling the pieces that will make up the top, determine the layout of the top. This should include the dimensions of the MDF, the dimensions of the edging, the locations of the vises, and of the screws or bolts that will support the vises, and of all of the benchdog holes and of all of the drywall screws you will use to laminate the panels,
My first attempt at making a cutting guide didn't work. What I ended up with worked fine for cutting panels, but the guide-strip was too narrow, and when the saw was extended fully for rough-cutting the 4x4's the clamp heads got in the way. So I made another. Actually, I made two more, so that I could cut one into shorter pieces that would be easier to handle.
Cut off a 21-in.-long board for the shelves, rip it in the middle to make two shelves, and cut 45-degree bevels on the two long front edges with a router or table saw. Bevel the ends of the other board, cut dadoes, which are grooves cut into the wood with a router or a table saw with a dado blade, cross- wise (cut a dado on scrap and test-fit the shelves first!) and cut it into four narrower boards, two at 1-3/8 in. wide and two at 4 in.
Even with all of those faults my only regret is that it is too ugly. I didn’t take the time to make it more visually attractive as I was eager to get right into making beautiful furniture instead. Twenty years later the furniture is still beautiful (or not) but I go out to the shop and look at a drab uninspiring workplace. Yeah, nothing wrong with having a visually inspiring workplace in my opinion. All that shop furniture I slapped together years ago with no concern about aesthetics is getting replaced bit by bit. Why should my shop be downright ugly when it is one of my favorite places in the world to spend my time? I see no reason for that, but that’s just my opinion and as we all know everyone has their own one of those… Sadly, no one pays nor reveres me when I offer mine. bummer, I could be a rich egotistical maniac if they did coz I sure offer it enough. 😉
Grouping George Nakashima’s The Soul of a Tree and Jim Krenov’s Worker in Wood with Nick Offerman’s Good Clean Fun might seem sacrilegious, but we like how the trio’s perspectives encompass the diverse spirit of woodworking. The older books combine photos of exceptional work with serious reflections on the nature of craftsmanship. Nick is equally passionate about wood and woodworking, but he’s more willing to admit that he’s enjoying himself–a good example for all of us to follow.
Before joining the top to the base, loosen the bolts and screws on the lower stretchers to create a little play in the leg posts. Align the top notches with the leg posts and tap the top into place with a hammer and piece of scrap wood, working evenly around the table until all leg posts are level with the tabletop. Tighten the lower stretchers and you’re done. A hefty thanks to Doug Merrill for this weighty idea.
I made my version of a Roubo bench over 20 years ago. According to the latest bench rules it is too tall, too wide, has too many vises (I use both sides of my bench and that might be a no no, not sure ), and has far too many holes. Did I mention that I have a double row of dog holes with a user made dual row wagon vise? I had no idea they were called a wagon vise back then. Being a tool maker and tinkerer at heart I just made a vise that I thought at the time was an original idea for the main side. Couple of dowels in a piece of wood straddling the two rows and I have a bench stop, or a different variation gives me a 3 point clamping system. If that isn’t bad enough it also has drawers on the bottom to store seldom used tools and supplies. Maybe if it had taken me a few weeks to drill all those holes and mount a few vises I would only have one vise and 8 holes too. I dunno
Grizzly is a company currently undergoing an upheaval. This brand was once known as a manufacturer of professional grade tools and equipment for woodworking products. Though, in recent years, that reputation has begun to slip a bit since being bought by the Chinese company SIEG. These days, whether the Grizzly product stands up to its previous standards of excellence often has more to do with what you are buying than the company itself.