The blades for a 12.5 inch delta planner are two sided and are designed to be disposable. Is it possible to buy blades that can be sharpened but are still "easy" to install?
The disposable blades have slots in the center which locate the blade the correct distance away from the cutterhead. You would need blades with those same slots to fit over the tabs on the cutterheads.The blades for a 12.5 inch delta planner are two sided and are designed to be disposable. Is it possible to buy blades that can be sharpened but are still "easy" to install?
Grinding on those thin blades may cause them to lose their hardness and a sharpening service may not warranty them. They would also have some difficulty registering a two blade knife because the reference edge may be worn unevenly and that would be time consuming to set up. They would need the adapters for slotted blades to get the edges even and parallel. It's most likely not worth the time and trouble to grind them commercially. They are meant to be disposed of when dull.You can't sharpen "disposable" blades. Not wide enough, too thin. Grinding doesn't work. Only "honing" works with a stone, by hand.
You may find a sharpener willing to do it, I donno? Ask around and see what they say.Are you saying a sharpener won't sharpen the disposable blade?
I think the term sharpening is more generic and covers all the methods. But, I use "sharpening" when a high speed wheel is used for grinding like on a table saw blade.I don't think there is much standardization between what "sharpening" means. Different authors use that term differently. The words GRINDING, and POLISHING are generally understood.
Exactly! Well said, at least someone understands the whys and wherefores involved.Possible? Yes.
Smart? Probably not.
Elaborating on what was said, there is the holes that locate the blades in the proper location. Most people don't realize there is a relationship in the cutting edge location and the rest of the mechanisms in the planer. Such as feed rollers and outfeed roller positions.
So if you grind the blades shorter this relationship changes. Not sure the tolerances but you may need to adjust the planner to work right then, maybe not.
There is also the issue of grinding the edges in relation to the register holes. If the grinder doesn't have a way to line up on those it is likely the blade will get ground out of square and cut at an angle.
I have a makita sharpener and do my own blades but I wouldn't try these.