doubt regarding robotics

[deepanshu lulla]

sir the shopkeeper told us that the rectangular steel chassis was the
only chassis available..in the market.(its not like the one in pdf
2...its just plain without any connections b/w front and rear
wheels).so we had to buy that...
now..this rectangular chassis has 4 spaces for big wheels..and not a
single place for attaching that small wheel with ball bearings

moreover due to lack of space,i had to connect motor 1 to rear left
wheel and motor 2 to right front wheel..

[deepanshu lulla]

this led to malfunctioning of motion of bot

[Shikhar Chouhan]

Try buying a caster wheel it will make ur bot like a three wheel cart
Apply using some strip of metel
If u r from bhopal den go to d welding shop at tean shed he will weld
d caster wheel acc. To ur purpose
N it is must that d allignment of both d wheel is at d same line
so make it that way only.

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Warm Regards
Shikhar Chouhan
MANIT Bhopal

[Rahul Jain]

You can also try for a JCB truck. it will cost Rs. 140 to Rs. 200. it will be complete chassis as well as motors and body. u will only need to mount the breadboard over it and the bot will work.