# The Tools Hewn Shop Notes ยท https://hewn.build/shop-notes/the-tools AI-drafted, not yet checked: Drafted by Chip, the writing system Hewn runs on Claude, from Hewn's craft corpus. Jonathan Salomons has not read this note yet, and no outside reader has checked it. Read it as a shop note: check a number before you cut to it. Cite as: "The Tools." Hewn Shop Notes, hewn.build/shop-notes/the-tools. Drafted 2026-04-24; AI-drafted, not yet checked. --- Every plan was drawn in someone else's shop. Nobody writes that down. The drawings show you joints, dimensions, a cut list if you're lucky. They don't mention the hollow-chisel mortiser bolted to the bench in the corner, or the dado stack that's been on the tablesaw since 2019 and never comes off. But those tools are in every line of the plan. The joints told you. You just have to learn to read them. A through-tenon in a 2012 magazine plan? That was cut on a mortiser and a tablesaw. A plan from a hand-tool program assumes a mallet, bench chisels, and a lot more patience. A production-shop drawing assumes a dedicated mortise machine and a shaper table. The joint geometry looks the same on paper. The path to get there is completely different. This matters because you're reading their plan in your shop. ## What the plan quietly assumed Three categories. Every time. Dimensioning. The plan assumes you can get stock flat, square, and to final thickness. S4S from a supplier gets you most of the way. A jointer and planer get you there precisely. Hand planes get you there too, with more skill and more time. The joint won't fit if the stock isn't right, and it doesn't care which tool dressed it. Joint cuts. This is where the real questions live. The plan shows a dado. Did the designer cut it with a dado stack? A straight bit in a router? A router plane by hand? The answer changes your setup time and your skill requirements. It does not change the geometry. Same width, same depth, same fit. A dado is a dado. Profiles. Here's where people get into trouble. A 3/8" roundover requires a bit with that radius. A 45-degree chamfer is a different shape entirely. If the plan specifies a profile, that profile is part of the design. Swapping it isn't a tool substitution. It's a design decision. ## One question before you substitute anything Does your method produce the same geometry, or a different one? Same geometry, different tool: you're fine. A plunge router in a jig and a bench chisel both make a mortise. Setup time differs. Skill curve differs. The joint is the same joint. The plan's structural logic holds. Different geometry: you're not adapting the plan. You're building a different piece. A box joint is not a dovetail. A pocket screw is not a mortise-and-tenon. Call it what it is. ## Where substitutions actually work Dados. Four paths, same result. Dado stack on a tablesaw is fastest. Router with a straight bit and a fence is slower but clean. Router plane by hand is accurate and quiet. Handheld router with a clamped guide is precise if you don't let it drift. All four get you there. Fit the dado to the actual shelf thickness, not the nominal. That 3/4" plywood is 23/32" and everybody knows it. Mortises. Hollow-chisel mortiser is quick. Drill press to hog out the waste, then pare to the line with bench chisels, is reliable. Router jig gives you a round-ended mortise, which means either rounding the tenon or paring the corners square. Hand chopping with a mallet works fine for furniture if the chisel is sharp and the layout is dead on. Dovetails. Jig and router: fast, consistent. Hand-cut: slower, visible variation, slight mallet marks. Some people prefer the hand-cut look. But a box joint is not a dovetail substitution for appearance. It works mechanically. It doesn't look the same. If the design shows dovetails on an exposed drawer front, changing to box joints changes the piece. Profiles and edges. This is where substitution most often crosses into redesign. A routed ogee is a specific shape. A chamfer is a different shape. "Close enough" is not a phrase that applies to profiles. Get the bit or redesign the edge. Those are your two options. ## The workaround spiral There's a common failure mode. The plan calls for a dado stack. You don't have one. You set up a router with a fence, take a pass, the fence walks. Reset. Fence walks again. Ninety minutes later the dado is acceptable. The dado stack would have taken five minutes. The time loss is real, but the worse damage is to your confidence. Builders who've been through that spiral start avoiding complex plans altogether. They don't need simpler plans. They need the right tool, or a joint their shop can execute cleanly on the first try. Get the dado stack. Or redesign the joint. Either one beats the spiral. ## Read the plan before you cut the wood Before you start any plan, scan the joinery. Note which operations your shop handles cleanly, which need adapting, and which need a full redesign. If more than two or three joints need redesigning, the plan might not be your starting point. That's not a reason to avoid ambitious work. It's a reason to spend fifteen minutes reading before you spend fifteen hours building. The geometry is the joint. The joint is the piece. Everything else is process, and process is yours to decide.