|Project by DaleMaley||posted 03-27-2016 05:18 PM||618 views||1 time favorited||3 comments|
After getting David Wakefield's book on patterns for animated wood toys, I am building the ones I find most interesting to me.
The Cross Crocodile is the same basic design as the Hungry Hippo. There is a short dowel on the inside of each of the two front wheels. As the wheels turn, the dowels lift the mouth open, then it falls closed with a nice clunk sound. You can set how often the mouth opens by how you orient the 2 front wheels. You can get 1 opening per rev, 2 openings per rev, or 2 openings per rev with a space between openings.
This project uses the common scroll sawing technique of compound scroll sawing for the main alligator body. You apply a pattern to 2 sides, then saw side 1 and then side 2.
I made this one from Brazilian Cherry, then applied mineral oil when it was done.
This is a relatively simple animated toy to build. The only issue I had was an error in the pattern in the book. The geometry is wrong for the small piece that connects the 2 sides of the rotating mouth. Since I didn’t find the error until final assembly, I was able to remove enough material to get it to work.
To see my Trials & Tribulations of building this project, see my woodworking web site.
Still pictures do not do these designs justice, you need to see and hear the model in action…….so I made a Youtube video:
In the video, I try running the toy down a ramp, it crashes, but it is a rugged design :)
The little ones in the family should really enjoy playing with this one!
-- Dale, Illinois, http://dalemaley.webs.com/