Jointer Knife Setting Jig

in this video I'm going to show you how I made this set of magnetic jigs to help you set your jointer knives and I'm also going to show you how they're used to pull the piece of cherry right for my scrapping and the first thing I'm going to do is cut one end square and then I'm gonna cut a length about ten inches long so now that I have a nice flat edge I'm going to go ahead and cut out to five inch sections okay so with the jointer unplugged I'm gonna go ahead and mark the location for a stop which will help us to find top dead center I'm gonna rip a small piece of wood that'll be used as that stop that we just marked for the jointer so I'm gonna make a curve and one of the two sections of our jig to insert the stop that we just ripped on the table saw and to do that I'm gonna use my simple Kirk making Jake so with the chicken applies I can go ahead and cut off the excess parts of this stop so before you put the magnets in both parts of the jig I need to find where top dead center is on our cutter head and transfer the top dead center location to the portion of the jig that has the positive stop we're going to do that next because we're going to be touching the cutter head a lot the first thing you want to do is make sure that your jointer is unplugged there are two different ways to find top dead center of a cutter head that I'm aware of and one method involves taking a stick and placing it over top of the cutter head and moving the knife forward and back and measuring how far the stick moves when you move the cutter head I don't particularly care for this method too much the method I like to use involves using a dial indicator because the cutter head is a cylinder we can use our dial indicator in the magnetic base to find the highest part of the cylinder by moving the dial indicator forward and back over top of the rounded portion of the cutter head [Music] right there so with a sharpie I'm gonna make a mark right where this tip of this plunger lands on the cutter head so I can transfer this mark to our jig so without moving a cutter head and the positive stop of our jig up against the edge of the optin table we can transfer that mark to the jig I'm going to use a Forstner bit and place a rare-earth magnet up towards the front of each component of the jig and I'll also place a couple towards the back okay so now that these guys are finished showing I'll only show you how you use them so what the give bolts completely loose and the knife free to move I'm going to slide the first jig over into position so that the positive stop is resting up against the edge of the Alfie table so now I'm just going to rotate the cutter head until our knife is underneath our indicator line which indicates the top dead center right there so now I'll just place the other part of the jig overtop of the knife so that the magnet is directly above the knife so with the knife positioned over our top dead center mark make sure that the knife is free to move up and down underneath the magnets so while keeping our knife underneath our top dead center more go ahead and tighten down the get bolts so one way to check that you've done this correctly is to zero your dial indicator on your Alfie table then what you want to do is position the dial indicator overtop of the cutter head and again find top dead center by moving the dial indicator forward and back until you find the high spot there's vile right there it's not what you want to do is roll the cutterhead until the knife is directly underneath the dial indicator plunger and see if you read zero so that's it guys so if you get a chance please subscribe to my channel by clicking on this link over here and you can also like my Facebook page and stay up to date with everything garage wood works thanks for watching guys [Music]

Channel: GarageWoodworks

Views: 101,484

Rating: 4.9446063 out of 5

Keywords: woodworking, jointer, jointer knife, set

Id: TrQBQfs3HZk

Length: 4min 25sec (265 seconds)

Published: Fri Oct 18 2013