|Posted on March 28, 2013 at 4:15 AM|
Just lately I seem to have had a lot of people asking quesions about when blade sharpening needs to be done. I can look at the blade and feel the teeth and tell you if it is blunt, but it is much more important that users learn when the edge has gone off of their blades.
Blade sharpening is one of the smaller expenses you will have, so why try to save money on it by leaving a blunt blade in use? Blunt blades will over-heat and that can damage the blade...Read Full Post »
|Posted on December 17, 2012 at 7:20 PM|
If your saw blades are covered with resin from wood that accumulates on the tips and body over time, they will likely heat up and become dull. Overheating is likely to cause them to losing their ability to hold an edge even if professionally sharpened.
You can keep your saw blades sharper by cleaning them regularly wit...Read Full Post »
|Posted on December 17, 2012 at 8:50 AM|
Tooth shape is normally something which only crops up when a customer has a problem cutting. I hope this simple guide will save you having some of the problems I come across on a daily basis.
Flat Top teeth are used on blades made for ripping hard and soft woods. Since wood is much less likely to chip and splinter when it is being cut in the direction of the grain, the focus of a rip blade is to quickly a...Read Full Post »
|Posted on December 17, 2012 at 6:10 AM|
Most of you know how to do this, but sometimes I do get asked. I have even been called out to a customer who compained his sharpened blade was burning wood - he had fitted it the wrong way round ! He had never done it before and never will again, but now I never assume you know how to do this.
Be sure your machine is maintained in perfect condition and free from bearing play. The saw blade must run true on the man...Read Full Post »
|Posted on December 17, 2012 at 5:55 AM|
The rake or hook angle is the angle of lean on the front of the tooth. You can check it by placing a straight edge between opposite teeth and going through the centre of the blade. The steeper the hook angle the more aggressive the cut - i.e. it bites into the material more.
Woodcutting on portable and table saws typically requires a positive hook.
Negative hook gives resista...Read Full Post »