And this is the finished 1st cardboard model:
I then began to transfer the 2D Paper design (complete with coffee stain, ha ha!) into the CAD world:
The photos below show the solid works specification of parts. I also drew all the parts in google sketch up when I didn't have access to Solidworks. Both CAD packages were new to me and I learned an incredible amount via this project. Basically how to use them! Which I guess is the point :)
Chassis (To be Laser Cut from Acrylic)
Original Foot (To be Laser Cut from Acrylic) - I decided to change this because the shape made it difficult to calculate the relative positions of other components. Creating a rectangular foot made this easier.
Ball Joints (Originally I intended these to be Fuse Deposition Molded using the Dimension Machine in the SHU workshop, but an interesting thing happened during development...)
Servo Horn Extension Piece
(Fuse deposition molding)
Servos (I modelled these to help me to visualise assembling the whole thing. I did not assemble in Solid works but I did move different parts together to check alignment and some dimensions)
Ankle (Fuse deposition molding) - This took me ages to model!! I couldn't work out how to get the slots and holes through the parts because I had modelled them on the front plane right through the longitudinal axis of the cylndrical part. I eventually worked out how to "extruded cut" with an offset in both directions!
All Parts Together! (Before some modifications, which I did after making a 2nd cardboard model)
