P
PaPaPeng
- Jan 1, 1970
- 0
I am hijacking the RC unit from a toy boat for motorizing another
plastic scale model. I need to know how the motors are wired.
Go to [ http://www.sharperimage.com/ ] and in their search box go to
"boats". They have a minispeedster kit NK001 for $19.95.
Also go to
http://www.mikromodell.de/index_e.html and see the small plastic
models that have been motorized and R/Ced.
I have already cut open the minispeedster to see the insides. The
guts are real teeny. They are ideal for what I want to do. The
minispeedster has two cell phone type motors mounted in external pods.
The R/C Tx can signal both motors to spin forward or in reverse. By
stopping one motor or putting it in reverse while the other motor is
still running forward it will cause the boat to turn. There is no
rudder.
A four AA cell charger tops up a two cell NiCd unit sealed inside the
minispeedster. Its good for a 10-15 minute run time.
Each motor has three hair thin wires and I am reluctant to scrape off
the insulation at this time. I can envisage four wires at the battery
source end feeding the polarity change switch for the motors for
fwd/rev. The motor will of course have only two wire leads for the
brushes.
The question therefore is why does the motor have three leads and how
does that implement the motor's fwd/rev polarity change from the Rx
PCB.
Thanks in advance.
plastic scale model. I need to know how the motors are wired.
Go to [ http://www.sharperimage.com/ ] and in their search box go to
"boats". They have a minispeedster kit NK001 for $19.95.
Also go to
http://www.mikromodell.de/index_e.html and see the small plastic
models that have been motorized and R/Ced.
I have already cut open the minispeedster to see the insides. The
guts are real teeny. They are ideal for what I want to do. The
minispeedster has two cell phone type motors mounted in external pods.
The R/C Tx can signal both motors to spin forward or in reverse. By
stopping one motor or putting it in reverse while the other motor is
still running forward it will cause the boat to turn. There is no
rudder.
A four AA cell charger tops up a two cell NiCd unit sealed inside the
minispeedster. Its good for a 10-15 minute run time.
Each motor has three hair thin wires and I am reluctant to scrape off
the insulation at this time. I can envisage four wires at the battery
source end feeding the polarity change switch for the motors for
fwd/rev. The motor will of course have only two wire leads for the
brushes.
The question therefore is why does the motor have three leads and how
does that implement the motor's fwd/rev polarity change from the Rx
PCB.
Thanks in advance.