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Thread: Weed Grubber - made using an old strimmer and car alternator armature

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    Supporting Member brianhw's Avatar
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    brianhw's Tools

    Weed Grubber - made using an old strimmer and car alternator armature

    I always thought these alternator armatures would have some sort of use and now I've eventually found one ! I decided to modify half of one to use as a weed grubber head for my old strimmer and it worked exceedingly well, saving time and effort on hands and knees pulling weeds from my potato plot.


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    Thanks brianhw! We've added your Weed Grubber to our Farm and Garden category,
    as well as to your builder page: brianhw's Homemade Tools. Your receipt:




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    bob47907 (06-19-2020), VinnieL (06-19-2020)

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    That's impressive!!

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    Supporting Member TrickieDickie's Avatar
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    The armature will probably out last the trimmer.

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    What’s truly impressive to me is the process of, say, looking at an assembled armature on the bench and thinking ‘hey-I could use that to grub weeds!’.
    It looks as if you’ve had plenty of time working the grubbing hoe and thinking ‘there’s gotta be a better way.’

    Well done!

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    Supporting Member N00b Machinist's Avatar
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    Devil’s Advocate here: I imagine the string portion of a trimmer is to minimize damage to non-weed bystanders, e.g., stakes, mailbox posts, ankles, etc. What you’ve got there is a blunt pole saw. Useful, to be sure, but additional care, I expect, is necessary to avoid tearing up things you don’t want tore or launching stones or cans or other FOD at those nearby, including yourself. Also kickback - that’s going to kick back much harder than a string on a spinner.

    In the right hands, a masterful tool. I can imagine myself f**king things up spectacularly in my own.
    Last edited by N00b Machinist; 06-28-2020 at 07:49 PM. Reason: Additional thoughtses.

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    Very impressive. The machined square to hold it firmly was also genius. Thank you so much .

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    Supporting Member brianhw's Avatar
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    brianhw's Tools
    Quote Originally Posted by N00b Machinist View Post
    Devilís Advocate here: I imagine the string portion of a trimmer is to minimize damage to non-weed bystanders, e.g., stakes, mailbox posts, ankles, etc. What youíve got there is a blunt pole saw. Useful, to be sure, but additional care, I expect, is necessary to avoid tearing up things you donít want tore or launching stones or cans or other FOD at those nearby, including yourself. Also kickback - thatís going to kick back much harder than a string on a spinner.

    In the right hands, a masterful tool. I can imagine myself f**king things up spectacularly in my own.
    Care is indeed essential,N00b Machinist. You have to concentrate to avoid nearby plants, just as you would with a (s)trimmer but surprisingly there's no kickback worthy of mention. My vegetable patch is pretty well stone free and any small ones encountered don't cause any problems.
    Thanks for comments.


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