This is another of David Wakefields wood toys. I have not make this one before, but he looks cute :)
I am going to use red oak for the main body and white maple for the tusks, to give a good color contrast.
I entered the design into Sketchup
I glued up 2 pieces of 3/4" thick red oak to make the blank. I made the blank bigger for 2 reasons...........1. Safety, you want a bigger blank to hold when you make the dado cut on the table saw, 2. leave room for an angle cut to level in drill press for 3/8" dowel hole drilling.
I did about 4 passes on the dado saw cut which is centered and 5/8" wide. I used blue masking tape to mark how far to move the blank into the saw for each cut.
I also drilled the 3 holes in the body.
I reduced the sign of the blank, so it would fit in my band saw and I used my biggest 1/2" size blade. I used an old wood clamp to hold the piece vertical in the band saw.
After I finished the bandsawing, I taped the 2 waste pieces back onto the main body, so it was ready to scroll saw the outline.
It took about 3 hours to make the main body including gluing and clamping up the blank boards.
I always like to maximize the action the toy does, so how can I increase how wide his mouth opens?
Well, if I increase the cam throw, that will open his mouth further. I increased the throw by 1/4" by redesigning the cam.
But, you have to increase the wheel diameter also, because if you don't, the cam will hit the ground when you are moving it along. I increased the wheel diameter from 1-3/4" to 2-1/4".
I made an illustration to show how this toy works.
I wanted a darker brown color for the walrus, so I used this stain.
I pinned the cam to the axle using a short piece of 1/8" diameter dowel.
I then glued the first wheel to the axle and dried it in the oven at 120F. After that, it was sticky when I turned the glue on wheel.........so I put the walrus in the vise and ran the axle at high speed with my 3/8" hand held drill. I also put on some Johnson's wax as a lubricant. It seemed to work a lot smoother after I broke it in with the drill.
This was a fun project.
Using the dado blade versus making the body from 3 pieces is probably the best way to go. It did not take that long to set up the dado blade and then make about 4 cuts to depth.
The grandkids should enjoy this one!