Benno
RC Newbie
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Hi all! My son and I picked up a whole load of parts to build a WPL C24, which has been a great project for him to learn about gearing, drivetrains, and the general mechanics of vehicles. It's a great little kit!
Unfortunately we had to scrounge a lot of the electronics ourselves, and we have been having some major problems getting it working correctly.
Our transmitter is a FS GT2 paired with the FS-GR3E receiver (the included A3 receiver was faulty). We've got a couple of batteries, a generic NIMH pack as well as a 2 cell Turnigy lipo (1,000 mAH, 7.4v). The motor we've fitted is a geared higher power 300 motor which was included (which for now we are just leaving in a single gear, as our transmitter is only 2 channel).
Our problem is finding an ESC that ties the whole lot together properly!! We have gone through 3 or 4 different ones without much success. We started with these generic 30a brushed ones that everyone else seems to be using:
We found these drove the front steering OK, but wouldn't transmit power to the motor. It's not a transmitter issue because if you swap out the steering servo lead into channel 2, we could use the throttle trigger to steer the wheels. Very strange. The ESC then rapidly gave up altogether and stopped working completely.
Testing the motor by connecting the battery leads directly to it worked without a problem in both forward and reverse directions. So the motor definitely works.
I wondered if I had a faulty ESC, so ordered a couple of replacements. One didn't work at all, and the other one developed a similar fault. I started to worry that the lipo I'm using delivers too high a current and is burning out the ESC. So I ordered a higher ampage ESC (seen on left, with the original fried cannibalised one on the right).
This did something incredibly weird where it would deliver power intermittently to steering servo with a reeeeeeally long delay (i.e. turn the wheel on the transmitter, wait a second or two, then the servo would move). I noticed the battery was getting really hot so quickly disconnected the whole lot. I'm sure the ESC I'm using now is drawing too much power. Again, the same problem of not being able to deliver any power to the main motor.
I'm very much a novice at all of this, and I'm sure I am making some fundamental mistakes in how I'm putting all of this together. My poor son is getting more and more discouraged - as he has loved building the truck but the problems with the electronics are getting him down.
Can anybody please advise on what I need to get this working correctly? We have been using this video as reference (
) and I can't figure out anything that I'm doing differently (same battery specs, same ESC, same plug positions)...
Any advice would be super appreciated - thank you!
Unfortunately we had to scrounge a lot of the electronics ourselves, and we have been having some major problems getting it working correctly.
Our transmitter is a FS GT2 paired with the FS-GR3E receiver (the included A3 receiver was faulty). We've got a couple of batteries, a generic NIMH pack as well as a 2 cell Turnigy lipo (1,000 mAH, 7.4v). The motor we've fitted is a geared higher power 300 motor which was included (which for now we are just leaving in a single gear, as our transmitter is only 2 channel).
Our problem is finding an ESC that ties the whole lot together properly!! We have gone through 3 or 4 different ones without much success. We started with these generic 30a brushed ones that everyone else seems to be using:
We found these drove the front steering OK, but wouldn't transmit power to the motor. It's not a transmitter issue because if you swap out the steering servo lead into channel 2, we could use the throttle trigger to steer the wheels. Very strange. The ESC then rapidly gave up altogether and stopped working completely.
Testing the motor by connecting the battery leads directly to it worked without a problem in both forward and reverse directions. So the motor definitely works.
I wondered if I had a faulty ESC, so ordered a couple of replacements. One didn't work at all, and the other one developed a similar fault. I started to worry that the lipo I'm using delivers too high a current and is burning out the ESC. So I ordered a higher ampage ESC (seen on left, with the original fried cannibalised one on the right).
This did something incredibly weird where it would deliver power intermittently to steering servo with a reeeeeeally long delay (i.e. turn the wheel on the transmitter, wait a second or two, then the servo would move). I noticed the battery was getting really hot so quickly disconnected the whole lot. I'm sure the ESC I'm using now is drawing too much power. Again, the same problem of not being able to deliver any power to the main motor.
I'm very much a novice at all of this, and I'm sure I am making some fundamental mistakes in how I'm putting all of this together. My poor son is getting more and more discouraged - as he has loved building the truck but the problems with the electronics are getting him down.
Can anybody please advise on what I need to get this working correctly? We have been using this video as reference (
Any advice would be super appreciated - thank you!