Saw Blade Sharpening

Edward Barr

Grumbler in Training
Joined
Jun 1, 2004
Posts
14
Loc
Ottawa
Can I take a poll? How often do you sharpen your saw blades? We sharpen roughly every two weeks, after cutting 120-140 wood frames. We cut all types of wood (hardwood, softwood, narrow and wide, with and without compo/gesso). We are using a Pistorius EMN-14 with Ultramitre blades. We rotate three sets of blades and get about two years out of them. Does this seem excessive?

Thanks

Ed
 
I personally don't have a defined schedule. It is more of a gut feeling. It really depends what you are cutting more so than how many. If I cut a lot of Oak or Ash, I rotate the blades more often. If I'm cutting the cheap soft import stuff, they last way longer.
 
We use our 9 inch, sixty teeth, carbide tip saw only for aluminum frames.

Like Jerry, I go by gut and decide that when the pitch of the saw sounds a little “different”, we change the blade. This blade swap occurs way before we notice any changes in our miters.

Each blade gets sharpened every 4 to 5 months, on average, and, I’m guessing, that is somewhere around 100 frames or so.
 
125 to 150 frames between sharpening is about right for us; that's once a week, normally. We dedicate a saw to wide molding only, a Cassese 939
 
how did that happen? Right in the middle of entering a reply the reply posted itself. I guess i need to be more careful.

... we use 10" blades on a MN100 for 95% of our molding(molding under 2 1/2" wide). We also use mass produced 10" blades. It would be hard to handle the cost of sharpening 14" Industrial blades that often.

You're sharpening each set of your blades a little over 8 times a year. I don't think you can expect to get 24 sharpenings from a blade, or even 16. My guess is 8.

In our experience 14" blades are fraught with problems. The main one being they magnify small arbor runout way more than a 10" blade because of the increased diameter.

It's the gesso/plaster that's dulling your blades. The same blades would cut easily 300 hardwood only frames. Warren
 
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