Can a brush blade be attached to the 15" trimmer

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  • Updated 2 years ago
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This conversation has been merged. Please reference the main conversation: Trimmer and cutting blades

Is there a way to attach a metal blade to the 15" trimmer for use in clearing thicker brush and small shrubs? 
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Adam Dear

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Posted 3 years ago

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David Cline

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Not from Ego, and even if there is some universal blade that could fit, it wouldn't be supported and might void the warrant or could damage the motor.

But to prevent damage Ego motors will immediately shut off if they sense more resistance than expected. So even if you could get a blade attached, the trimmer may not run with it on.
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BigC

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Agree
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Kid Rock

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Even with the built-in protections I think their likely could be damage over time if the blade spun up fast enough to limit heat build up during the spin up. Then you'd be damaging the bearings and would have to go slow to limit the slow down and subsequent load on the motor to keep the protection from kickin in.

It's just not designed for it.

Big difference between a spinning string and a spinning metal blade.
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Kid Rock

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Blu, that's not really what I was suggesting. Because the person who had an issue in the other thread was using a 12-inch trimmer (brushed motor) and it started and ran very powerfully. His issue was after he was using it.

I haven't taken my products apart to see if they had any heat sensors, but many electric motor products have temperature controls built in. Electric motor windings are insulated with some kind of enamel coating on the wire coils. And are more sensitive to damage from overheating.

When electric motors are bogged down, they draw more current and therefore the coils can start to smoke which causes shorts once the coils touch each other.

I don't know if brushless motors are as susceptible to this (15" Ego). Because they have electric controllers that are able to control Electric supplies to the wire coils to a much greater extent than a universal motor running with mechanical brushes.
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Blue Angel, Champion

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I think the only thing we're really sure about is that the tools are smarter than we are....... this opinion comes after ten beers and I do not approve this comment
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TheAtomTwister

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What might a drunk Blue Angel do with EGO power equipment???
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Blue Angel, Champion

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Disclaimer: Blue Angel does not support the use of Ego power tools, or any tools for that matter, while under the influence of alcohol.

Rest assured, the closest thing I had to a power tool at my disposal while writing that message was a cordless beard trimmer. I only posed a credible threat to my own hairdo. :-)
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TheAtomTwister

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That should be a relief, knowing that he didn't have a running chainsaw or lawnmower, who knows what he might have destroyed :D
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Jacob

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It could not sense heat. There isnt a sensor in the motor on the 12"trimmer. Must be measuring amp draw when it goes to sensing mode. Or possibly acceleration rate vs amp draw
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Blue Angel, Champion

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Well, if anyone would know it's the guy busy tearing these trimmers apart and Frankensteining them into things they were never intended to be! :-)
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Kid Rock

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Whatever it is, it seems like the other person said his trimmer had plenty of power until he started to use it with the long strings.

Still the ramp-up speed is going to be more likely a good thing to track with a mower rather than a string trimmer. Because some people try to start their mowers when sitting on grass of varying lengths.

As many of us know, a mower cuts with the tip of the blade but when you start on grass it's trying to cut with the whole length of the blade so it is much easier to bog down in those cases. So ramp up speed as especially important to look at when considering mowers.

I guess my point is that string trimmers aren't normally started up with the head mashed into grass.

But maybe everybody is right, really doesn't matter as long as our products work and we know how to use them.
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Kid Rock

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Clarifications on my points if anybody's interested...

OK, I just want to let all of you know I am not saying Ego does not track ramp up speeds or ramp up speeds with current draw ... Or even on every product they have. It wasn't my point.

Thermal degradation is huge (relatively) in motors ( not just from over current).

Motor protection principles link (PDF) :

https://www.google.com/url?sa=t&sourc...

_______ what I am saying ... For the die hards...

I'm just saying that ramp-up speeds are more important to check on certain products. Like the mower. ... and I think that ramp-up speeds are important to track for binding situations. Not just longer strings because I don't think that longer strings will affect a trimmer enough for it not to start just because the strings are a couple inches longer.

Plus I was saying that the link to a previous thread did not contain anything about ramp-up speeds I think. Because his product ran with plenty of power even with longer strings.

And as far as adding a metal blade goes... It was just that if (if, if, if) it would start up he would have to be careful to make sure that the speed didn't drop too low because that is very easy to do with metal blades. And that could cause damage to the motor, etcetera.

I mentioned that with a metal blade, if it doesn't actually cut ... it will just stop dead. Unlike with a string where if it didn't cut the grass it would just slide off and attempt to cut on the next rotation.

That's why if a metal plate was added he'd have to make sure that he didn't run it very fast through the grass (if it started) ... or dirt. As that is one of the big reasons that metal blades are great for... because dirt fills up the crack at the edge of the grass. And that makes it more difficult on a string trimmer if it's not trimmed correctly often enough.
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TheAtomTwister

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"Well, if anyone would know it's the guy busy tearing these trimmers apart and Frankensteining them into things they were never intended to be! :-)" 

That sounds like what I do to blowers.
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Blue Angel, Champion

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Wait, wat? :-P
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Jacob

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A metal blade would most definately destroy the shaft on the motor. Its 3/8" diameter
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David Cline

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Love how clear and concise this answer is—wish we could move it to the top of the thread!
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Kid Rock

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Destroy the shaft absolutely! What is made to spin string just wouldn't work to spin a metal blade.

My entry too 3rd from the top.
(Edited)
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JAS

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Instead of a solid replacement metal blade, why not a new head that allows string or the serrated spoon blades that can be had made out of plastic or plastic with metal edges. Use 3 seperate lines or 3 serrated cutters on the same head. Just push a button to open hole for each cutter, the line should be short pieces that also swivel. That way the line or cutters can swing over something tuff and not break. Just carry extras of each in the attachable container that clamps on your 15" trimmer.
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Blue Angel, Champion

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Not a bad idea!
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doublehelix

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As has been thoroughly covered here, the 2016 trimmer is not designed to safely accommodate a blade. But the multi tool said to be coming in the next few months has a brush blade attachment: https://community.egopowerplus.com/ego/topics/2000w-multi-tool.
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Ken, Champion

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Unfortunately, it looks like the brush blade attachment will not be released in the U.S. this year. (Neither will the hedge trimmer attachment, which I was really looking forward to.)

The U.S. is getting the 15-inch string trimmer (with rapid reload head), the pole saw and the bladed edger. The others may come next year.
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Thanks for the update Ken.  I was looking forward to the brush blade as well, but will be happy with the bladed edger.  If this edger works well, then I can finally sell my "old" gas edger once and for all.
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Ken, Champion

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I have friends living in Austria. I'm thinking about asking them to look into how much the other attachments --- particularly the hedge trimmer --- cost there and what it would take to ship them to the U.S.!

From what I've seen on UK websites, the hedge trimmer attachment is by far the most expensive of the bunch.
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David HD, Champion

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I would be curious on the price as well, let me know.
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Rick

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This reply was created from a merged topic originally titled String trimmer attachments?.

what ego string trimmer supports attachments
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Mike Gormley

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This reply was created from a merged topic originally titled Do you have a brush attachment for your trimmer th.

Own the Ego trimmer, would like a brush attachment do you have or does a certain after market work? Thanks. botave h

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