Motor Reversing

[Winger27]

I have a Hobbywing 1080 ESC and a Holmes13T Crawler Pro motor. If connected to the right polarity it runs backwards. I have reversed the setting in my controller, and it works fine, but now some of the settings on the ESC are backwards, mainly the Max forward and reverse force. Are any other settings affected on the esc by reversing on my controller? Will this do damage to either ESC or motor. Any fix, this is my first crawler build? Thanks

 

[Greatscott]

Switch the wires between the motor and ESC.

 

[DrIsotope]

^^^ What he said. Unless a brushed motor has built in timing, it doesn't know if it's rotating "forward" or "backward." Holmes motors are, to my knowledge, all set to 0º timing.

 

[Ots]

^^^ What he said. Unless a brushed motor has built in timing, it doesn't know if it's rotating "forward" or "backward." Holmes motors are, to my knowledge, all set to 0º timing.

...unless specified differently with the order (usually 6 or 12 degrees).

 

[Winger27]

I bought mine with 6° timing on it. It is adjustable to 12 thus switching wires is not an option. Is is possible to rotate the endbell 180° to make it run reverse and keep the timing

 

[svt923]

I hate the HW ESCs don’t give you different lights to indicate if they are going forward or backwards. ESCs are generally designed to pass more current in the forward direction than in reverse (which is the cause of so many “why is my truck faster in reverse?” questions) so I’m not a fan of just flipping wires or the throttle channel without knowing which is the proper forward direction of the ESC. What I do is set the ESC to forward only mode and set everything up so I know it is going the right direction then set it to the proper throttle mode.

 

[Winger27]

So if I need to reverse my motor without switching wires or reversing my transmitter how would you go about it.

 

[Greatscott]

So if I need to reverse my motor without switching wires or reversing my transmitter how would you go about it.

Your only option here is to program the ESC for reverse rotation, then recalibrate the ESC to the radio. If you are running a portal rig, reverse rotation should be selected on the ESC anyways.

 

[King Dork]

Your only option here is to program the ESC for reverse rotation, then recalibrate the ESC to the radio. If you are running a portal rig, reverse rotation should be selected on the ESC anyways.

Reversing motor direction is not a programming option with a Hobbywing 1080. Just because I’m curious, why would you want any motor timing with a crawler motor? All of my motors across a few different brands all came set to 0 timing. I’d suggest setting the timing to 0 and switching the wires, or am I completely missing something here? Just not sure what the relevance of motor timing is for a crawler.

 

[Winger27]

You are right about the 1080 not having that programming option. I went with the 6° timing for brush life and the best forward speed over reverse, as per Holmes explanation. Still learning also.

 

[King Dork]

You are right about the 1080 not having that programming option. I went with the 6° timing for brush life and the best forward speed over reverse, as per Holmes explanation. Still learning also.

I totally get you Buddy. I’m genuinely curious why a handful of people want to advance timing on a crawler motor. The motor you have is 2200kv. I typically run motors between 1700-1900kv but I definitely do more crawling than trailing but still feel my rigs are still fast enough to trail with (after all I don’t move as fast as I used to, lol). I understand crawlers typically only advance timing 6-12 degrees where off-road racers often go MUCH higher than that (brushless motors/apples to oranges). I was also under the belief that advancing timing increases heat and wears brushes out faster in a brushed motor. Plus if someone doesn’t want their rig to drive as fast in reverse they can adjust the reverse endpoint on their radio. This is my attempt on trying to learn something about something that I never really looked into, so if anyone can explain the benefits in a crawler please chime in. I really hope you get this radio/esc thing figured out so you can get that rig out to Spirit for some of the best crawling around. Take care my friend!

 

[HumboldtEF]

Is is possible to rotate the endbell 180° to make it run reverse and keep the timing

yes, for the best explanation go to the source https://www.youtube.com/watch?v=G5-EZyPZBFI&t=915s


TLDW just happened to stop at the right part (whole video is useful though)


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