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The chassis is currently being vigorously tested by teams
of college and university students.
The construction concept is based on flexible modules
that are assembled together as required. The main component is the
motor -chassis that houses the two Nano- motors and wheels.
Additional metal plates can be added to construct a robot into many shapes
and sizes. These additional plates could be replaced with plastic sheets
or even PCB's with embedded electronic controllers and sensors.
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| This kit is precision CNC
machined chassis made from one sheet of aluminium. The sheet is easy to
bend into the required shape as the following pictures depict. The design
has been keep as simple as possible to easy and low-cost robot swarms the
construction.
The CNC program can be easily adjusted
to create various custom designs for different project. |
Using just
flat-nosed pliers, the first step is to bend up the sides and wheel
mounts. The bending position is marked as notches on the plate.
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| Place a 6,5mm drill bit, metal
rod or even a pencil into the chassis to form the round motor
straps.
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Insert the
Nano-class motors into
place and tighten and lock the straps into place. |
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| The wheels then need to be
assembled. The parts included are:
Motor, 3mm shoulder screw, precision machined
aluminium wheel, miniature ball bearing race and a rubber drive belt.. |
The ball bearing race is placed
inside the wheel housing; as a "press-fit". The shoulder
screw is placed inside the assembly ready for fixing to the motor block
housing. |
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| Attach wheel
assembly to the chassis and fix the drive belt. Repeat on the other side. |
That was
simple! The motor chassis is now complete. |
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| There is sufficient
space between the two motors to fit batteries or even a motor controller
PCB./ . |
The motor chassis
is just 24mm-25mm square and only 14-15mm high
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| Add 4x plastic PCB
stand-off's and any other front / back fixing plates to
complete the basic construction. As you see there is adequate room
for additional PCB's and sensors.
The above picture depicts the completed nano-sized
robot with a MegaBitty controller PCB place on top. There is plenty of room
underneath for line sensors or underneath the MegaBitty board to attach additional
sensors boards (such as the IRCF-Junior) or additional batteries.
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School, college, university
and robot clubs
ROBOTmaker can make a customised design for your own class or club
robot project. Just send details to support@robotmaker.co.uk
and we'll give you a quote.
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TM
