Design of Automatic Multipurpose Indian Flatbread Maker
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Fig. 2 Stationary plate (in red and blue color)
Fig. 3 Moving presser plate attached to the base
G-shaped electric heater coil. We used coil of same diameter as roti. Shape of the
coil gives uniform heating to the roti.
Teflon-coated aluminum plate. Aluminum is one of the best conductor of heat. To
conduct the heat from the G coil, it was the best option. Plate is coated with food
grade Teflon to give it non-sticky nature. It avoids dough to stick on the plate (Figs. 4
and 5).
Base. For this machine, its base is an integral component which provides stable
foundation to the cam follower presser mechanism. We are using specially designed
stationary machine base for this purpose which is hence made up of cast iron for
mounting motor–gearbox mechanism as well as provides hinge for the moving
presser plate. Screw guide mechanism is provided to the base which consists of
two interlocked parts with jack screw at the center. The lower part of base is fixed
to the main frame so as to make the upper part adjustable in one direction for tuning