a rather odd way to mount a strimmer/weedwacker

nathandance1996 · Oct 3, 2010

I've just bought a strimmer and found a good way to mount an engine with friction drive,
it combines the advantage of front wheel drive a rear wheel drive, you have the shaft moving along the bike frame from the front (overhanging the front wheel) down to the tire with friction drive, you don't need to change the strimmer in any way so it's quite a good idea for commuting

professor · Oct 3, 2010

So you mount a wheel instead of the trimmer head. Would only work with the geared head trimmer. But the geared part is not at a right angle to the frame and not square with the tire. Maybe have the shaft and motor go thru the frame on a angle to compensate for the drive wheel not being at the right angle.

wheelbender6 · Oct 3, 2010

Maybe you could devise a rim drive system and increase your tire life.

nathandance1996 · Oct 4, 2010

wheelbender6 said:
Maybe you could devise a rim drive system and increase your tire life.

yes, just with a basic mock-up of this design my tyres suffered, but friction drive it is cvlt1

, it's illegal in the UK, but the police didn't seem to mind

nathandance1996 · Feb 22, 2011

it did not work as the flexible shaft couldn't cope with the pressure, does anyone know how to build a bike with a strimmer engine??

Erich_870 · Feb 23, 2011

Try replacing the flex shaft with a solid steel shaft. I built a boat motor using a solid shaft weed whacker.

Erich

wayne z · Feb 27, 2011

Try it like this, This thing works great. That's a holesaw modified to use for a drivewheel.

kev1n · Feb 28, 2011

wayne z said:
Try it like this, This thing works great. That's a holesaw modified to use for a drivewheel.

View attachment 33917

I like your setup Wayne, do you have any more pics? It looks like the engine is hanging there praying for a smooth ride.
Thanks Kevin

wayne z · Feb 28, 2011

Hey Kevin, It looks like its dangeling but it's proven itself pretty solid. I've used it successfully on 3 or 4 different projects.

The first bike was my daughter's 20 inch bike. That's where it was proven to be reliable. The kids rode the daylights out of that thing for 2 years, till they wore out the bike. Used it on several other projects, never had ANY trouble with the engine 'cept for a couple of carb rebuilds
I'll re-post some more pix in a while, my net runnin slow right now

mmmmudd · Feb 28, 2011

Beyond the engineering involved, I wonder how the bike would handle with a frame mounted engine in front of the handlebars. . . Good or bad it'd have to be a unique experience.

kev1n · Mar 1, 2011

wayne z said:
Hey Kevin, It looks like its dangeling but it's proven itself pretty solid. I've used it successfully on 3 or 4 different projects.

The first bike was my daughter's 20 inch bike. That's where it was proven to be reliable. The kids rode the daylights out of that thing for 2 years, till they wore out the bike. Used it on several other projects, never had ANY trouble with the engine 'cept for a couple of carb rebuilds
I'll re-post some more pix in a while, my net runnin slow right now

Wayne, your setup is awesome to say the least! It's the perfect way to use the clutch and not have the engine at a 90 degree angle. I'll be looking forward to some more pics. Is that setup hinged so you can get the roller off the wheel?

Thanks Kevin

wayne z · Mar 1, 2011

Yes it's hinged on a single 1/4" bolt,with a beam clamp holding it in positon. I never refined it enough to make the hinge operable with controls.
Here's more pix, but the first one in the other post has the most detail.

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a rather odd way to mount a strimmer/weedwacker

nathandance1996

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professor

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wheelbender6

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nathandance1996

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nathandance1996

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wayne z

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wayne z

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mmmmudd

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wayne z

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