The Walden Effect: Farming, simple living, permaculture, and invention.

Chopper 1 spring repair notes

chopper 1 spring repair instructions

The local hardware store had a spring that was close to the original Chopper 1 spring for 30 cents.

A short stub of 12 gauge wire seems to be enough to anchor the spring once I glued it in place with a product called Liquid Welder.

I'll let it dry overnight and then give it a test drive to see if this repair can hold up under heavy chopping.

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About us: Anna Hess and Mark Hamilton spent over a decade living self-sufficiently in the mountains of Virginia before moving north to start over from scratch in the foothills of Ohio. They've experimented with permaculture, no-till gardening, trailersteading, home-based microbusinesses and much more, writing about their adventures in both blogs and books.

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Mark, for future reference, if you want to glue metal (I'm guessing cast iron from the look on the pictures?) de-grease it first with e.g. acetone, roughen it up and remove corrosion with some sandpaper and de-grease again. Then glue it.

BTW, if the 12-gauge wire isn't stiff enough to resist the bending forces applied by the spring, there is no way that glue is going to restrain it.

If you just want to keep the wire from falling out, a small drop of superglue (cyanoacrylate) would probably suffice.

Comment by Roland_Smith Tue Dec 28 17:34:00 2010
If we're lucky, Mark's fix will last a good long time, but if not, we'll definitely follow your advice for the next repair job.
Comment by anna Wed Dec 29 09:16:58 2010

Thanks for the feedback Rolland.

This spring just barely puts any force on the 12 gauge stub and is mainly used to return the iron finger back to the original position.

I agree that extra prep work on a surface is critical if you want a good bond, but this only needed to hold the pin in place and the surface was mostly clean.

Comment by mark Wed Dec 29 16:49:49 2010
Where did you get a spring for 30 cents. I paid $2.21 (Canadian) for a spring that was a bit too long. For the pin to hold the spring, I used a pop rivet, cut off half the shaft and applied a spot of solder on the shaft opposite the side of the rivet. Fits in the groves nice.
Comment by Ron Tue Mar 17 17:24:41 2020
This is helpful. What's the length and diameter of the spring hat I need. Both mine are MIA.
Comment by Jake Mon Apr 13 22:44:02 2020

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