wrote:
On 10 Sep 2004 19:27:10 -0700, (raymondj) wrote:
Does anyone use a bench grinder to sharpen lawn mower blades? If so
can you tell me your recommendation and experiences. I am looking for
something where I can get the angle right and won't take forever (like
with a dremel.) I have a bunch of blades to sharpen each year and I
just want to bang them out (and not have to drive to the shop and wait
2 weeks for them to be sharpened.)
I see the Delta sharpening kit has terrible reviews (as do most of the
delta bench grinders.) I did see a special bench grinder with a jig
made for lawn mower blades to set the angle, but the unit was close to
$300.
Can any of the Jet, Baldor, etc be equipped to easily sharpen blades
accurately?
I just take the blade off, stick it in the vice and use my angle
grinder to sharpen it. I never found where the angle needs to be all
that precise, as long as it is sharp. However, you want the blade
balanced. In other words, if you take an ounce off one side, do the
same on the other. You can buy little pointed blade balancers for a
couple bucks, and they are worth the money. If the blade is not
balanced, the mower will vibrate badly.
My pointy blade balancer is a nail. Stick the nail in the vice
(horizontally) put the center hole of the blade on the nail and let
the blade swing. Grind the swing down side.