All Replies on Is this Duracraft Bandsaw worth saving? There’s no manual. Duracraft is the brand. The model is 20412. All Replies on Is this Duracraft Bandsaw worth saving? There’s no manual. Duracraft is the brand. The model is 20412.
Sounds like your blade is getting hot, causing it to expand, causing it to be too loose. The blade gets hot when it's teeth are rubbing or scraping the material more than they are cutting.
You might see some improvement by increasing the blade tension and feeding the material a bit more aggressively. But you will see greater improvement by using a blade with fewer teeth. For a given blade, the thicker the material is, the more teeth there are engaged in cutting at the same time, so each tooth gets a smaller share of your feeding force.
The optimum number of teeth that should be engaged in the cut at a time varies by the material, the style, quality and condition of the blade, and the rigidity of the saw- but you can use 3 to 10 as a rough guide. Good luck, and thanks for using FixYa. Al Kupchella Apr 15, 2010. Remember to match the blade width to the type of cutting you are doing. Also keep in mind:. Narrow Blades can make much tighter radius cuts, but tend to twist and wander when making long straight cuts. Wide Blades can't make the tight turns that narrow ones can, but they hold a straighter line than their narrow counterparts.
The tpi determines the speed with which the blade cuts through stock. Blades with high tpi cut slower but leave a very smooth edge. They are best for detail work on thin stock. Blades with low tpi cut quickly and leave a slightly rough edge. They are great for resawing or long rip cuts. Steel Blades are inexpensive and work well for cutting softwood.
Steel blades, however, dull quickly in hardwood. Bimetal Blades are made of high-speed steel and can cut thin metal or wood. Carbide Blades are for wood cutting only. They are more expensive than other blades but stay sharper longer than steel or high-speed steel. Aug 27, 2008.
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