Here are some detailed pro tips for aligning the knives in an old school machine. Question i have accurately set knives in a number of jointers and know all the basic moves.
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How to set planer knives. The knives are loosened by turning the screws in the wedges with a wrench. Make certain the beveled side of the cutting blades edge is upward and facing the rear of the saw body. You can see the nick towards the bottom left in this picture.
Bob vaughan demonstrates his technique for setting planer knives. The other is used for setting infeedoutfeed rollers and chip breaker. All this takes time but you can get both blades set.
When the blades are a lot too high they will leave a scoop in the end of the timber. Also check that the end of the knife lines up with the end of the block. One sits on the cutterhead for setting the blades.
2pcsset jointer planer knife setting jig magnetic planer blade setting jig gauge setter woodworking tool. 2pcs woodworking cutter aligner planer knife setting jig planer blade setting. Setting and adjusting knives in an old planer 1920s era iron is rock solid but it can be finicky.
I carried the knives to a a facility that specializes in sharpening saw blades of all types and of course planer knifes. Looking at the planers cutter head its one of the traditional style heads with a wedge with screws in it clamping a relatively thick 3 mm blade in place. A starter set for a 6 jointer with three knife cutterhead costs 239.
With practice you can get the blades within 001 if they were properly ground. How to set planer blades look at the two working surfaces of the planer the tables. After looking at what a replacement set of planer knives for the jet 13 planer cost it was definitely cost effective to have them re sharpened at this time.
Here you can see that this end of the blade needs lifting up a bit. This one though is something else again. Two home made jigs for doing planer set up.
Replacement knives are 28 for a three pack. The knives register to pins on a magnetic metal holder that rests in the cutterhead channel on locator tabs as shown right. These disposable knives have two edges just like those on a benchtop planer.
Wind the height adjusters well in so the bade is really low. Planer knife setting jig. At least that was surmised.
Insert the new planer cutting blade into the cutting blade slot and press down to ensure it is fully seated in the opening. Tighten up the locking bolts until the knife is held in place securely but is still loose enough to move as you alter the height adjusters.
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