Forging a new blade

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  • Updated 5 years ago
  • (Edited)
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This conversation has been merged. Please reference the main conversation: Can I use a hand-held knife sharpener to sharpen the mower blade?

Tired of the weak and thin blade that needs constant sharpening.  Forged a new blade from a Honda mulching blade set.  Took quite a bit of work, but I now have a twin blade that fits perfectly without risk of damaging the mower.  The performing heights are identical to the OEM blade, and the weight is not much more than the factory blade. 

The performance is fantastic.  A bit of physics here.  1. The blade is a "tad" heavier, so the spin up time is a bit more of a strain on the battery, but the heavier an object in motion, the harder it is to stop.  So once it is up to speed, usually within 1 second of the factory blade, it stays up to speed and has a much better cut.  The mower doesn't bog down due to the centrifical force. It also doesn't affect the auto brake.

This wasn't a project for most DIY, I did it at a machine shop with help from a pro.  I'll post pictures later.  This mower is fantastic, but the weak spot is the weak blade.  Note that the reason for the small metal OEM blade is for weight, battery life and load on the battery and motor.  DO NOT deviate much from the OEM blade weight.

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SCDC, Champion

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  • excited.

Posted 5 years ago

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David Cline

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Taking orders yet? How much do you charge?
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SCDC, Champion

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Hello David,

I am not going to post a picture nor sell a set to anyone, due to liability reasons.  I am thinking of sending an ACAD file to EGO to let their engineer team have a look.  I would prefer Ego sell something like this to their customers.  They seem to be VERY open to suggestions and I believe their engineering team isn't caught up on "EGO" that they aren't willing to look at other ideas.

Thank you.

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SCDC, Champion

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I've stopped using the modified Honda blade after messing around with the OEM blade.  Why?  Cost, the OEM blade is about $10.00 cheaper than the Honda and performs good on my centipede/Bermuda grass.

 

Sorry for the poor image, but wanted to show the angle change.  The sharpened edge is supported by thicker metal closer to the point, thus stays sharper, longer.  Note that I sharpened it to a point of being able to cut through paper, like a razor.  I have a workshop mounted grinder I used to do this.

Thanks for the interest.  Have a nice remainder of the summer!

*** Come on with the chainsaw already! ***

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Jennifer VandeWater, Community Manager

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Thanks for sharing this. As always, we pass this type of information to our engineers. A quick reminder to our community: please remember that modifying our products and/or using unapproved accessories will void the product warranty. More important-- we want you all to be safe. We cannot guarantee that modifications such as these will not reduce the safety of our products.
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SCDC, Champion

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Every time you sharpen a blade, it is modified. It is not exactly the same angle/weight or sharpness as out of the box. Nor is the blade warranted. So sharpening your blade by hand and not to out of box spec voids the mower warranty?
(Edited)
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Jennifer VandeWater, Community Manager

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Hi SCDC. You are correct, of course, that sharpening your EGO
blade does not affect the warranty. Our safety and warranty advice to the
Community refers to efforts to make or modify parts, such as in your original
post in this thread. Everyone, please be careful!


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SCDC, Champion

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Could you please remove any posts that would possibly void the warranty of the mower and notate it?  I would be happy with just the post about the sharpening of the blade.  I want to look out after all of the EGO owners.

I myself have been a metal worker and inventor all of my life, including being part of a team that has worked on Snow Making Guns for resorts.  I have a safe full of sketches and ideas, most are probably rubbish, but at least I put my ideas on paper.

Then again, I don't think people in Canada need snow making  :)

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