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rinker26
02-25-2010, 06:23 PM
what are some good brands of blade sharpeners.never done my own but would like to this year but dont know where to look for them.are they expensive and are they hard to master?

SouthSide Cutter
02-25-2010, 06:59 PM
Sharpen all mine with a 4" grinder with a wheel from NAPA that has alot of flaps on it. it is not a solid wheel. Takes very little metal off. Drive a nail in the wall to balance. Been doing it for 11yrs. Dont cost alot and gets the job done. Get a 18V grinder and you can do it on the job with blades on.

Mickhippy
02-25-2010, 07:08 PM
I dont mean to sound like an azz but do a search. There are literally 100's of threads about sharpening blades. All the info you will ever need!
I personally use a MagnaMatic! Worth every cent!

rinker26
02-25-2010, 07:15 PM
yeah i just found that and it looks like a pretty good machine

Bob_n_weave
02-25-2010, 07:22 PM
I sharpen my blades with sand paper, you can do it in between jobs and don't have to remove blades. It also doesn't take off much metal and saves on buying new blades. I just use my finger to balance blades, it's cheaper and it works. :rolleyes:

grassman177
02-25-2010, 08:22 PM
I sharpen my blades with sand paper, you can do it in between jobs and don't have to remove blades. It also doesn't take off much metal and saves on buying new blades. I just use my finger to balance blades, it's cheaper and it works. :rolleyes:

are you serious?:confused:

we use a rgb by wall. cant remember the model, but she is getting old and still grindin

blakerugg
02-25-2010, 08:47 PM
does anybody out there use the magna matic balancer? i cant imagine spending over 100 bucks when u can (as posted above) drive a nail into a wall. dont mean to hijack the thread. im interested to hear some other replies as well

Mickhippy
02-25-2010, 10:48 PM
does anybody out there use the magna matic balancer? i cant imagine spending over 100 bucks when u can (as posted above) drive a nail into a wall. dont mean to hijack the thread. im interested to hear some other replies as well

I imported the Magna "pack" to Australia. Cost me MUCH more than it would you (about Au$1200 or so). Like I said, worth every cent.
The difference it made on vibrations coming out of the deck was unreal. Even new blades that I was getting were shockingly out of balance. I bought some Fusion blades recently and put them on the balancer. 2 of the 3 were out of balance!
People will say theres no point to balancing. I would strongly disagree with that. The comfort and noise value alone is worth it, let alone the extra wear it MUST be putting on spindles.

Before I got the "pack" my blades wouldnt last very long as I hated sharpening them with the angle grinder. I would sharpen once, maybe twice and throw them away. Now Im getting through an entire season on 2 maybe 3 sets if I dont hit anything. Time and effort involved in blade maintenance has been dramatically reduced. I can go through the process of taking blades off, sharpen/balance and put them back on in probably 5 mins. That has got to be worth $omething!

The balancer has a guide to see if your blades are straight. This is great if you hit anything.
Basically, I made my money back in practically the first year and half.

If not the the sharpener, I would recommend you get balancer. It will blow you away how inaccurate nails, plastic cone rubbish and "fingers:laugh:" are!

grassman177
02-26-2010, 01:40 AM
that is a good testimony. i dont think the big man would ever spend that kind of loot on a blade sharpener. i just dont think the "value" could be seen or justified to him(or me) but you do make it sound pretty compelling

Mickhippy
02-26-2010, 02:28 AM
Understand that blades cost anywhere from $25 to $40 each here.

I try to think of it like this......

The cheapest blades I can get are now about $25 each, thats $75/set.

So at approx 8 sets/yr cost was $600 minimum.
When I used the angle grinder I would spend conservatively 30mins on blades per week. One sharpening per week! (Would usually take longer than that, just keeping it simple.)
My minimum working rate is usually $60/hr. Thats $120 a month in my time wasted on blades.

Now its costing me $225/yr and its taking me WAY less time and effort to maintain them.
Now its approx 15min a week. At least 3 sharpening's a week now. Thats $60/mth in my time.

So...
With angle grinder..... $600 in blades + $120x8mths = $1560 on blade/year.

With Magna...... $225 in blades + $60x8mths = $705 on blades/yr. Add cost of magna $1200 + 705= $1905 first year cost.

Ive just realised why I wrote all that! Its Friday, didnt work due to rain. I should be sitting out on the deck with an ice cold beer!:drinkup:

blakerugg
02-26-2010, 05:28 PM
agreed, a very good testimonial. is it actually easy to sharpen the blades with the magna?

Mickhippy
02-26-2010, 05:48 PM
agreed, a very good testimonial. is it actually easy to sharpen the blades with the magna?

Very easy! All you do is lay the blade flat on the little table thing and add some gentle weight to the wheel. Seriously, if done regularly (which is what you'll do) it takes only like a minute to sharpen and balance a blade.
Using an angle grinder you have to put it in a vice, turn on the grinder, estimate the angle, be careful not to but the metal and yourself, turn off grinder, put down carefully, take blade out of vice, check balance, put back in vice grinde to balance bla bla bla. You get my point?

Im not saying you have to get the Magna sharpener really, theres the RGB I think it is. Im just really saying its much easier to use a dedicated sharpener than anything else.

I bet you couldnt find anyone who has regretted buying a dedicated sharpener!

grassman177
02-26-2010, 07:04 PM
yes, a dedicated tool is best, using an angle grinder is inefficient and wears the blade veyr unevenly. i have watched the videos and the magna does look to be the cadalac of sharpeners though and even faster than regular ones like the rbg we use now

STIHL GUY
02-26-2010, 11:00 PM
i use a bench grinder and it works well when you get the hang of it

mds2000
02-27-2010, 12:10 AM
i ordered a magna matic balancer last summer awesome crazy how bad my blades realy were but duty after crossing into canada ended up being like 305$ can so am kind of waiting to get a few bucks before i order the grinder who knows how much it will end up being

mike174
02-27-2010, 12:54 AM
are you serious?:confused:

we use a rgb by wall. cant remember the model, but she is getting old and still grindin

Grassman - I doubt he's serious (refer to his eyes rolling face).

I use a bench grinder.

Richard Martin
02-27-2010, 08:00 AM
Nails? Fingers? To balance a blade? Don't even bother. Here a vid I shot of a comparison between a nail and a simple bearing.

http://i208.photobucket.com/albums/bb56/RMartin631/mower%20stuff/th_DSCN0198.jpg (http://s208.photobucket.com/albums/bb56/RMartin631/mower%20stuff/?action=view&current=DSCN0198.flv)

bryansong
02-27-2010, 08:46 AM
Nails? Fingers? To balance a blade? Don't even bother. Here a vid I shot of a comparison between a nail and a simple bearing.

http://i208.photobucket.com/albums/bb56/RMartin631/mower%20stuff/th_DSCN0198.jpg (http://s208.photobucket.com/albums/bb56/RMartin631/mower%20stuff/?action=view&current=DSCN0198.flv)

That's a good idea!

Thanks,
Bryansong

ALC-GregH
02-27-2010, 11:07 AM
To the guys that claim a nail in the wall will balance a blade, well a nail WILL NOT properly balance a blade period.

ALC-GregH
02-27-2010, 11:58 AM
I use pretty much the same thing as Richard and it WAY more accurate then a nail.
http://i39.photobucket.com/albums/e160/americanlawncare/PA010002-1.jpg

JB1
02-27-2010, 12:07 PM
we use one of these.

http://www.rbggrinders.com/

westwind
02-27-2010, 12:12 PM
We use a Neary blade grinder,with a new wheel about every season. Blade balancing comes courtesy of a standard cheap balance, I think the last one was an Oregon. These we replace every cutting season.




WW

Bob_n_weave
02-27-2010, 01:31 PM
[QUOTE=mike174;3439161]Grassman - I doubt he's serious (refer to his eyes rolling face).


Also refer to Magna matic 9000, Blade balancer in signature. Blows me away that someone with 11 years in business still uses a nail.

grassman177
02-27-2010, 01:35 PM
wow, nice video. i have a metal cone balancer and it is pretty good, but i think i will do the bearing thing to double check. thanks

freshcut419
02-27-2010, 01:43 PM
[QUOTE=ALC-GregH;3439576]I use pretty much the same thing as Richard and it WAY more accurate then a nail.
http://i39.photobucket.com/albums/e160/americanlawncare/PA010002-1.jpg[/QUOTE
Is that a little bearing between the two nuts?

JohnnyRocker
02-28-2010, 08:36 PM
To the guys that claim a nail in the wall will balance a blade, well a nail WILL NOT properly balance a blade period.

I have never tried this "nail" theory. But, why doesn't it work?

blakerugg
02-28-2010, 10:51 PM
I have never tried this "nail" theory. But, why doesn't it work?

i dont know much about the internals of balancers but i would guess that they have ball bearings inside which would make it much easier to spin if the blade was out of balance, and less friction then when using a nail. the more friction the less acurately balanced the blade will be

Richard Martin
03-01-2010, 04:00 AM
I have never tried this "nail" theory. But, why doesn't it work?

2 reasons.

1: As blakerugg said, the blade is not free to rotate on the nail. The blade could be grossly out of balance and you'd never see it.

2: This is related to number 1 but if you watch my video you'll see me adjust the position of the blade on the nail. The blade appears to go from slightly out of balance to balanced when it's on the nail. It is extremely difficult to get the blade centered properly on the nail so you can even get an indication that the blade is out of balance. I could have just as easily shown that the blade was out of balance towards the other direction if I had wanted to. That's not possible with a bearing.

JohnnyRocker
03-04-2010, 05:36 PM
I have never sharpened my own blades before today. I used an angle grinder with a 60 grit flap disc. The blades are sharper, but not as sharp as I would want them to be. I can run my fingers across the blades with a little pressure, and not even blink. Am I doing something wrong, or is this the way it is with what I have?

Mickhippy
03-04-2010, 06:06 PM
I have never sharpened my own blades before today. I used an angle grinder with a 60 grit flap disc. The blades are sharper, but not as sharp as I would want them to be. I can run my fingers across the blades with a little pressure, and not even blink. Am I doing something wrong, or is this the way it is with what I have?

I dont sharpen my blades to a razor edge. I used to, but they loose that edge so quick its not worth loosing the extra metal. I sharpen down to something like .5mm rounded (blunt) edge. Sharp enough to cut grass but it seems to keep that edge longer.

JohnnyRocker
03-05-2010, 12:14 AM
I dont sharpen my blades to a razor edge. I used to, but they loose that edge so quick its not worth loosing the extra metal. I sharpen down to something like .5mm rounded (blunt) edge. Sharp enough to cut grass but it seems to keep that edge longer.

Thanks mate!

SouthSide Cutter
03-05-2010, 12:46 AM
[QUOTE=mike174;3439161]Grassman - I doubt he's serious (refer to his eyes rolling face).


Also refer to Magna matic 9000, Blade balancer in signature. Blows me away that someone with 11 years in business still uses a nail.

The nail was around before any balancer and I have done it this way for 30+ years and never had bearing failure. And if you take your time its pretty dam close to perfect.

lawnproslawncare
03-05-2010, 01:09 AM
Foley Makes a awesome blade grinder.

greenerman
03-05-2010, 01:32 AM
To the guys that claim a nail in the wall will balance a blade, well a nail WILL NOT properly balance a blade period.

Dido, really you should have known.

Richard Martin
03-05-2010, 04:31 AM
RBG has what looks like a really nice sharpener now. It is a hands free sharpener. You set the blade up in the machine, turn it on and walk away. The sharpener does the rest by it's self. It's the RBG912. $558 at PEW. http://powerequipmentwarehouse.com/rbghandsfreebladegrinder-p-48003.html
BTW, I wouldn't have posted such a large pic but since Greg already blew out the window I figured what the heck.

http://powerequipmentwarehouse.com/images/RBG%20912%20Grinder%20Sparks.jpg

Mickhippy
03-05-2010, 12:18 PM
Why would anyone need one of those? To save time?????