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Machinery to Replicate the Look of "Scrub Planing"
Question
Forum Responses
From contributor V: I agree with the above that a portable power planer is the answer. I would hone the iron myself and be worried about grain direction tearout. Another idea is to regrind the knives for a portable benchtop planer. This would give the look but may be too consistent for the look you are after. From the original questioner: I have a portable Bosch planer 3 1/4" with replaceable carbide knives but I'm thinking the amount of metal is not enough to have my sharpening guy grind a "scalloped edge" onto. I’m still looking for other ideas that involve an electric motor as I get older (and smarter, we hope). I'm always looking for ways to do things easier. From contributor V: Maybe if you tell us exactly what you are wanting to do besides one inch wide repeats. Are you planing beams already installed on a ceiling, etc? From the original questioner: What I am trying to do is create parallel depressions or troughs, with a concave section (curving down into the wood) partially overlapping and irregular. These will be about 1" on center. I'm working with fairly thin pieces (3/4") to make into cabinet doors/fronts. From contributor V: I would use an actual scrub plane or a power plane like you own. If you want to replicate plane marks that a scub plane would make, the knives on a power planer are plenty deep enough. Use high speed steel and shape your knives yourself on a bench grinder. Just a simple curve is simple to hand grind. Hone it, polish the back, and go to work. I would think a single convex shape on the knives will work better than a "scalloped edge" for the look you described. From contributor J: Festool makes a hand power planer that has different knives available. There are a few different options with wavy knives. From contributor A: Do you have access to a CNC router? A core box or big ball nose set to engrave a 3 axis random spiral will give you a very nice chisel or gouge look if the toolpath is properly applied. From contributor O: If you are trying to match old looking woodwork, you need subtle random variations in the depth and direction of the scallops. It starts with wood that you can run a hand plane over, then use a plane on it. It won't take that long to do a kitchen, if that's what you're doing. A production run of faux hand planed MDF or something isn't worth it, it looks fake. It's like seeing those trailer truck exhaust stacks on a pick-up truck. From contributor D: I often distress custom built doors and have two CNC machines, but don't use them for this. I don't go so far as to beat them with chains (people tell me they actually do this), as it's already a good workout using powered hand tools. We use powered hand planers, belt sanders, pnuematic scalers, mini angle grinders and hand drills with various wire wheels. From contributor R: I have tried all the knives that Festool offers, but always go back to the scrub plane to get that realistic look! Then I sand with brush type air sander. From contributor H: Thanks for that tidbit about the Festool knives. I have been close to ordering those for mine but just never liked their shape. We also use the hand plane with the knife ground in a slight curve. A power plane with the same type curve might be the deal. To me the hand planning is the easy part; everything else that follows is what’s hard.
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