The guide to dog hole placement.
Dog holes on workbench. Clamp the guide in place along with a backer board to prevent tear out on the bottom of the bench. Ideally space the dog holes so you can secure a board of any width to the workbench ken so start by measuring your vise s capacity. Draw a crosshatch to locate the first hole. For example if the vise s jaws can hold a board up to 6 1 2 secure any board up to that size between the jaws.
The second piece of 8 4 ash was glued on as a fence the distance from the holes to the fence equalled the desired distance of the dog holes from the edge of the bench. So i present my foolproof secret to success dog hole placement guide. Once one hole was drilled a dog placed through the first hole in the jig and passed through to the first hole automatically set the second hole of the jig to drill the next hole. Then position the drilling guide s alignment marks with those on the bench.
This is so you can stabilize the wood for handplaning and joinery. 3 4 dog hole bushing not required but highly recommended more below 3 4 auger bit more below crosscut saw drill and other assorted tools length of 2x4 some 3 4 plywood and other scraps. Mark the row of dogholes on your bench aligning the mark with the dog on your bench s vise. That depends is usually the answer i give and that probably frustrates more than it helps.
So seeing as i just built a new workbench myself and had to ask myself this question i thought it was time to come up with something more definitive.