Try this before plugging the holes and drilling new ones or starting over with a new top. The pattern depends upon the vises you use and how you like to work what scale you work in whether your bench is located for access to both sides as opposed to up agains the wall and several other factors.
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The 2 12 dust port combined with an appropriate vacuum system.
Bench dog holes in mdf. This holds them in place in work position or stored in the holes when not in use. If youre simply using bench dogs for clamping any material should hold up well enough. The solid one piece extruded aluminum construction makes it easy to achieve a smooth and stable feed rate which reduces grain tearout and the sacrificial mdf sub fence can be trimmed and adjusted to give a tight custom fit around your expensive router bits.
In the picture you included in your post the brass pegs are the bench dogs. Holdfasts are something i use every day. Round dogs like lvs and holddowns tend to be 34 diameter to the best of my knowledge.
However i could see the holes wearing down more quickly if you were to use holdfasts. However it would seem risky to drill down through the bench top when the 3 threaded metal vice rods pass below. One application would be holding down a board for hand planing.
The 34 hole is best for that not the 1 hole. Picks your dogs first then make the holes fit. Round dogs like lvs and holddowns tend to be 34 diameter to the best of my knowledge.
Dog holes for plywood workbench top i built a solid 8 workbench 27 years ago having a masonite cover over 2 layers of 34 fir plywood. At your drill press bore a 1 hole in the jig to ensure its perpendicular to the face. The masonite was intended to be renewable.
My current bench4th in 42 years is the first bench with round holes and it is a joy. It would seem to make sense to drill bench dog holes behind your woodworkers vise so that you would hold down work pieces using the vise on one end and a bench dog or two at the other end. Image courtesy of wikipedia theyre usually in the form of pegs with a lip that sit in the pre drilled dog holes and act as a stop.
The pattern depends upon the vises you use and how you like to work what scale you work in whether your bench is located for access to both sides as opposed to up agains the wall and several other factors. Festools mft has a sacrificial mdf top and the original paulk workbench design has a plywood top similarly perforated with dog holes. To make a dozen bench dogs i just cut 34 dowels and drilled in a cheap bullet spring catch.
Picks your dogs first then make the holes fit.
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