Saturday, July 12, 2008

[papercreters] Lawnmower shreder and safety

I have been fabricating devices and tools for most of my 64 years, and I guarantee Slurry Guy is absolutely right.  I have been hurt many times because of such failures.  These accidents can ruin or end your life.

 

A few years back we were discussing ways of regrinding Styrofoam on the FC group.  One system of note that may be helpful made use of a rotary lawnmower.  The bottom was covered with plywood, the outshoot part had a collection bag, and a tube was fastened to the top to feed material into the spinning blade.

Another member explained that for mixing cement and aggregate nothing he found worked better than a flat spinning blade drilled and mounted on some allthread and powered with a ½” Hole Hog drill, the blade being slightly smaller than the bucket.  The famed “Onebone”.

 

Mounting the lower end of either shaft as described would probably improve both.

 

Containing possible mishaps in a heavy-duty steel container or tank would improve safety.

Old water heaters and or pressure tanks might be utilized as mixing containers.

 

I am contemplating a lawnmower powered papercrete mixer that might produce pulped papercrete continuously by adding measured weights of water, cement, paper, and other aggregates.

This is basically the same idea as the tow around mixer, but more compact.

Hooked up to a pump and hose it could be sprayed onto whatever form in thin layers for faster drying.

 

I appreciate any input on this idea.

 

Janosh

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