Final Design

I made a second cardboard model from cardboard that was thicker for two reasons. Firstly, the thickness of the cardboard was similar to the 5mm acrylic thickness i would be using and so I could double check early alignment issues. Secondly, it was stiff enough to be able to test some function of the legs too:



Here's the leg function check!



Once I was fairly happy with any modifications I had done after the 2nd cardboard model. I went right ahead and modelled the laser cut parts into Techsoft 2D Design. See below:

And you can see the full parts set (well almost...), plus the 2nd cardboard model parts below:

The etchings that I had put on the chassis didn't match up, so I had to do a second parts check after laser cutting. Then I marked up the correct location on the chassis before attaching the spacers and legs:



After I had all the laser cut parts and the Fuse Deposition moldings. I sub assembled part of the project. Enough so I could begin testing with the circuit wizard flowchart...



I adjusted the servo range settings on the circuit wizard program first to avoid breaking the legs off through the servo taking the ball links past the range of slots in the ankles! Then I tested the full flow chart with one leg attached:




See the Home Page for the fully assembled model!!