My recommendation for the jig to use is the Oregon G-160B.Īt any rate, to get organized to sharpen your Crosscut Chain on the saw you will need a way to support the saw while you work. This is a step above freehand sharpening but it is a bit expensive for what is provided. Stihl makes an adequate guide that will hold the file and provide a good reference angle. Most people will require help to keep a consistent sharpening angle. You may even be able to keep a uniform angle freehand. If this is a new chain or hasn’t hit a piece of metal in a tree, this should be sufficient. Many manufacturers tell you to just touch the edge of each cutting point the same number of times to create a uniform sharpen on all of the teeth. When sharpening a chain, the leading edge of the chisel tooth needs to be brought to a uniform edge. The 3/8 pitch chain will use a 7/32″ chainsaw file or a grinding stone. The chain will need to match the length of the bar, the slot in the bar (the gauge) and the sprocket that drives the chain (pitch). In fact, each bar will set the gauge of the chain that needs to be used. Each bar length will require a matching chain. The majority of consumer saws will use a 3/8″ pitch and a. The most important thing to identify is what file size is required for the specific chain you are using. You can purchase a set of chainsaw sharpening files for just a few dollars. The majority of chainsaw chains will be sharpened with a round file. A Skip tooth chain will probably require more frequent sharpening but will take less time to sharpen as there are 1/2 the cutting teeth. This will be the most aggressive and clear the sawdust most effectively but will increase vibration in the saw and has a greater danger of kickback. A Skip tooth chain has a missing cutter repeated after each cutting tooth. The pattern will be two teeth, a space, a single tooth, a space, then the pattern repeats. Semi-skip has every other section with a full complement then a space and a single tooth before the full complement repeats. The full complement (or Standard Chain) will stay sharp the longest but will take more time to sharpen. Each section of the chain includes a cutting link. Full complement means that all of the pattern is full of teeth. There are 3 types of tooth layout, full complement (Standard), semi skip and skip chain layouts. Changing the spacing of the cutting teeth makes a chain cut more aggressively. Often with Crosscut chains that are doing a lot of production work will want a bit more aggressive cut. This will reduce the speed of the cut but the cut will be as smooth as possible with a chainsaw. Some sawyers doing slabbing will cut a 0 degree angle on the saw chain. In general, a shallower angle will help to make the rip cut smoother. Rip Chain, as used for the slabbing process that I used with the homemade Alaskan Sawmill, is cut to 10 degrees from the factory. There are typically angles marked on the various jigs that are available to keep your filing angle more precise. You can estimate this with a file, or if there are witness marks on the teeth, you can match your file angle to the witness mark. Most Crosscut Chain is sharpened to 30 degrees. When sharpening the chains, depending on the particular chain you are working with, there are a variety of sharpening angles. This is basically a modification of the tooth angle (25 instead of 30 degrees) and a down angle of 10 degrees instead of a 0 degree down angle. The Square tooth, Round Grind that is made by Oregon is called the X Grind. The two most frequently found cutting teeth geometries are the Square Tooth Round Grind and the Square Tooth Square Grind. You can get different grinds, different tooth spacing and all of these can change depending on the saw you have and the bar that is on it. When it comes to Chainsaw Chain, there are lots of confusing variations. The pricepoints vary all over the map but the choices have some Pros and Cons. I have been researching the various ways that you can sharpen a Chainsaw Chain. There are a number of Electric Chainsaw sharpeners, several manual chainsaw sharpeners and lots of guides that will help you get the correct sharpening angle. Once you have a Chainsaw, one thing is paramount.
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