Want to build computer controlled trolley

[david_kmng]

Dear all,

I would like to build a trolley driven by stepper motors or DC motors. If the target loading is 20kg, what is the general specification for the motors and what is the cost?

Also, where can I found the wheels (2-3 inches in diameter)?

I have a PCB that can drive small stepper motors of size similar to those used in floppy drives, I think I will make use of it and use a relay box to drive bigger motor. But is there alternative solid-state device?

Regards,
David Ng

[sn-10]

You may find the motors with gearbox in Ap Liu Street, 12DC driven, should fit your needs.