Where to sharpen blade?

[Carscw]

Yeah, you haven't had any problems.... So how far would the blade be dulled before you would sharpen it? If it makes no difference?

Come on now I know your not dumb.

 

[Fish]

Come on now I know your not dumb.

where could I start, eh????

 

[Carscw]

To keep a razors edge on a blade you would need to remove it twice per yard and put a new edge on it.

 

[Carscw]

Mower blade sharpening has been taken to a much higher level than that of years ago. Almost to the point of a science. Todays mowers are designed to multiple cut the grass blades. (Grass Cuttings/Clippings)

The decks of todays mowers are designed with a domed and/or crowned designed. This design is there to provide space for the cuttings/clippings to be flipped upwards well above the rotating cutting blade.

As the clippings/cuttings fall back down, they are recut multiple times. Providing a mulching effect. Therefore, not fully discharging all of the clippings/cuttings into the grass catcher. Some are left behind to degrade into a natural fertilizer.

Thus, the blade and deck design each play a part in how the cuttings are handled, once the cut is made. A mowers blade angles and cutting surfaces are designed into the cutting method and process. The cutting angle and edge are very important. More so than simply the blades sharpness.

A dull blade will sever the grass blades. Leaving the grasses tiny veins sticking upwards. A day or so later, the grass will appear brown or slightly browned out. A sharp mower blade will create a straight clean scissor like cut. Reducing the browning or eliminating the browning effect all together.

To obtain a more perfect resharpening, follow and maintain the original angle on the straight edge of the blade. If there is a curved edge inwards towards the center of the blade, follow and maintain that angle also. The intent is keep the blade cutting as it was originally designed to. Which allows the deck to also do it's part and not leave stringy grass blade veins behind.

How sharp is sharp? Good question. The answer is not too sharp. An overly sharpened blade will dull much faster than one that is just sharpened to be be sharp. The angle must be maintained and the edge not razor sharp.

All that is needed on the outer most cutting edge when resharpening is to cleanup the dulled cutting edged surface, while maintaining the original upwards sloping angle. The inner angled cutting surface can be resharpend on a belt sander. As can the straight cutting edge.

Once the cutting surfaces are cleaned up (resurfaced) to be sharp, balance the blade and reinstall it as it was originally installed.

Read more: http://www.doityourself.com/forum/e...rp-good-enough-mower-blade.html#ixzz2xTsNXxR3

 

[Fish]

so if this the case, why do you even bother sharpening at all?????

 

[Carscw]

#9
KennyV

Join Date
May 2010
Posts
5,412
Location
Kansas, Butler county, Just east of DooDah
Mower
CTL

Re: How sharp should a mower blade be?
If your cutting very lush green tender fine bladed grasses... you can go toward razor sharp...
But most of us are not cutting that type lawn... In later summer and towards fall when things dry up and grasses toughen up, a razor edge will fold back and waste away quickly as has been mentioned... if you can get the edge down to about the thickness of an 18 to 20 gauge wire, it will be fine work well all season... Love those Oregon Gator mulching blades.... KennyV

 

[Carscw]

Re: How sharp should a mower blade be?
The sharper the blade the easier it is to damage the edge.
I sharpen my blade to the point of making them cut good and no more than that.

IMO yes you can over do it, The new blade would be about what I would try to duplicate.

 

[Fish]

so you will go on record mentioning these silly threads?

 

[Fish]

Whatever kiddo......

 

[Carscw]

http://www.lawnmowerforum.com/general-mower-discussion/4556-how-sharp-should-mower-blade.html