3D modelled and printed right leg sub-assembly: first attempt

Previously the legs have been made manually in a variety of ways: cut out of polyethylene boards, soldered together using steel rods and laser cut out of  MDF. A couple of examples are shown in the photo below:

The leg sub-assembly has been redesigned to be 3D printed.

The right leg was 3D modelled:

The design followed on from that developed on the manual version.

The leg, motor and claw assembly model is shown below:

The leg was 3D printed in grey PLA (0.15mm resolution):

Some other parts of the leg sub-assembly were printed and are shown below along with the 200:1 motor/gearbox:

The long round spigot attaches to the rectangular motor spindle:

The motor and spindle attached to the leg:

The motor clamp was attached (nb: screws need trimming).

This worked but was later modified as shown below.

3D-Printed version …working on the tail

This post is about the process of starting to create the tail.

I found with previous versions that having a long-ish tail was quite effective in terms of balancing the rest of the model when it’s moving. Having a slight bend or kink near the front make it appear less dog like perhaps(?). I also noticed that actual dinosaur tails are wide at the base so that’s what I have tried to go for. I decided to have a triangular space-frame style structure.

This was developed further as can be seen below: