boat project, need to modify a rc system to make it push and pull...

bambino · Mar 10, 2012, 01:40 AM

Hello!

I have this Micro Ultrix bi-plane bi-motor (Hobbico)

Now it is all broken but the radio system works fine.

Unfortunately, this toy rc system is not capable of reversing the spin direction of the propellers.

I mean, If I PUSH the throttle, stick, propellers run counterclockwise. If I PULL the stick, propellers still run counterclockwise... It makes sense for an airplane, but I want to make a small boat to play around

Is there any way I can modify this toy rc system to make propellers run clockwise when I pull the throttle stick??

If so, it would be fun to make a small boat that can go forward and backwards...

Thanks all!!!

Park_aviator · Mar 12, 2012, 01:57 PM

Quote:

Originally Posted by bambino

Hello!

I have this Micro Ultrix bi-plane bi-motor (Hobbico)

Now it is all broken but the radio system works fine.

Unfortunately, this toy rc system is not capable of reversing the spin direction of the propellers.

I mean, If I PUSH the throttle, stick, propellers run counterclockwise. If I PULL the stick, propellers still run counterclockwise... It makes sense for an airplane, but I want to make a small boat to play around

Is there any way I can modify this toy rc system to make propellers run clockwise when I pull the throttle stick??

If so, it would be fun to make a small boat that can go forward and backwards...

Thanks all!!!

Hate to be the bearer of bad news, but I don't think that you can reverse a motor like that...

Gringostr · Apr 18, 2012, 10:08 AM

Sorry, but this is not possible. what you would need is a V-Pitch prop. rather than reversing the motor, it reverses the pitch of the prop. here is one of the best ones: http://www.maxxprod.com/mpi/mpi-29a.html

ramicaza · Apr 30, 2012, 05:22 AM

Well, there's no easy way to do it but it could possibly be done

If the plane has an extra channel as some rc toys do. (Ones using a common ic) Then you could actuate two double pole double throw relays to reverse the motors when a button is pushed on the transmitter. However most rc planes use more exotic ic's more suited to their exact use to eliminate weight.

Mar 10, 2012, 01:40 AM	#1
bambino Registered User Mexico Joined Nov 2005 416 Posts	boat project, need to modify a rc system to make it push and pull... Hello! I have this Micro Ultrix bi-plane bi-motor (Hobbico) Now it is all broken but the radio system works fine. Unfortunately, this toy rc system is not capable of reversing the spin direction of the propellers. I mean, If I PUSH the throttle, stick, propellers run counterclockwise. If I PULL the stick, propellers still run counterclockwise... It makes sense for an airplane, but I want to make a small boat to play around Is there any way I can modify this toy rc system to make propellers run clockwise when I pull the throttle stick?? If so, it would be fun to make a small boat that can go forward and backwards... Thanks all!!!

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Apr 18, 2012, 10:08 AM	#3
Gringostr Trolls more than he flys. USA, AZ, Queen Creek Joined Sep 2009 1,862 Posts	Sorry, but this is not possible. what you would need is a V-Pitch prop. rather than reversing the motor, it reverses the pitch of the prop. here is one of the best ones: http://www.maxxprod.com/mpi/mpi-29a.html

Apr 30, 2012, 05:22 AM	#4
ramicaza The Anti-Heli Thailand, Bangkok Joined Dec 2011 14 Posts	Well, there's no easy way to do it but it could possibly be done If the plane has an extra channel as some rc toys do. (Ones using a common ic) Then you could actuate two double pole double throw relays to reverse the motors when a button is pushed on the transmitter. However most rc planes use more exotic ic's more suited to their exact use to eliminate weight.