Final Design of our Water Surveyor
Old Design of our Water Surveyor
Old Design of our Water Surveyor
We have made several changes to our design. Firstly, we have excluded the keel as after a few experiments conducted, it does not really ensure our boat move in a straight line on water. On the contrary, the keel affects the turning of our boat when our boat is trying to achieve a lawn mower pattern on water.
Secondly, we have replaced the acrylic body structure with a tupperware. This is because we found out that the acrylic structure is not necessary and hard to be waterproof. Not to mention that it is time consuming to make, we decided to replace it with a tupperware which is waterproof and big enough to hold our circuits and electronic devices.
Thirdly, we have modified our body structure which is entirely made of acrylic by adding 2 pieces of aluminium extrusion bars below our downsized acrylic plates. Our previous design which is shown below has the problem of withstanding the weight acting on it and it will bend in middle. Hence, we have created a skeleton for it by supporting it with aluminium extrusion bars.
To mount the motors, we have designed special motor brackets using Autodesk Inventor and 3D printed them out. Then, we laser cut 2 pieces of acrylic board and the motor brackets are attached to the acrylic base.After a few of experiments, we noticed that the boat still tilted backward due to the weight of the powerbank in the tupperware. Thus, we add a float on the back part of our boat. It is to provide buoyancy force to our boat to stabilise our boat. The addition of the float has significantly increased the stability of our boat and ensure it balance when moving on water.
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Ta daaaaa!!! This is how the water surveyor will look like:
Notice me senpai
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