A Power Rock Rake

[DIYer]

Thanks Rick! We've added your Power Rock Rake to our Miscellaneous category, as well as to your builder page: Rick's Homemade Tools. Your receipt:

Power Rock Rake by Rick Sparber

tags: garden, drill

[rgsparber]

I’m now running with about a 1/4 HP motor. Power comes from a 20V 4 amp laptop power supply in series with a 16V 4.5 amp laptop supply. Works well and no more dead batteries. I think the next version will have a larger diameter shaft to better distribute the shock to the bronze bearings. The 3/8” shaft started out snug and now has some play.

[BoiseJoe]

I wonder how an older oscillating sander would work for this. If you pull the sanding pad, you could then mount the offset weight under the top plate. The sander could then be screwed to the top plate to hold it. Install a couple zip ties to hold the cord to the handle, and it should be easy to power with an extension cord. Many of us probably have an old sander laying around that “we will fix someday”. I know I do. If I make one of these, I think I would attach it with some u-bolts, so it is removable.

Cool idea. We have a lot of rock that glaciers dropped a long time ago where I live. This would be very useful in my garden to remove the majority of them.

[rgsparber]

Not sure it would have enough torque but sure would be a nice ready made solution.

[Jon]

"Inspired by Mr. Rick Sparber..."

Landscape rock spreader

[Boomer]

Very cool!!!!

[wizard69]

Rick

Be careful with those vibrations, long term exposure isn’t good.

[rgsparber]

Wizard69,

I'm sure you are right. Can you suggest a way to modify the design so less of the vibration is conducted into my hands?

Rick

[ranald]

It works on hard clay but not as fast as in 3/4” rock. My next version will be variable speed. Maybe the RPM can be tuned to the application. Rick

I like this Rick! You could use a smart phone to alter the revs. Mirca have bluetooth & memory & an Ap. Out of my league. Tomorrow? Hate smart phones=sorry.