Castle MMX Cogging
10-29-2016 | 06:02 PM
#16
I spent another hour playing with my two MMX ESCs. Both still make the Tekin ROC412 cog like a mofo. Yet the 35A HobbyKing ESC is still as smooth as butter.
I'm giving Castle a chance to respond to my latest email, but I've already started the process of returning one to Tower where I bought it. I'm looking to replace it with a Tekin RX8 or HobbyWing. I've had tons of luck with HobbyWing so I really like them.
I'm giving Castle a chance to respond to my latest email, but I've already started the process of returning one to Tower where I bought it. I'm looking to replace it with a Tekin RX8 or HobbyWing. I've had tons of luck with HobbyWing so I really like them.
10-30-2016 | 02:51 AM
#17
Tech Elite
Joined: Apr 2012
Posts: 2,500
From: Europe - Portugual
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-Minute 10.20" :P
They are starting to use that sensored thing... well other companys are doing it for more then a decade ago...
GOT your answer?
10-30-2016 | 05:55 AM
#18
I have not tried the x esc's but have had a long relationship with my mmp and its been great. Two question for you. Did you double check that the sensor harness is plugged in correctly on the esc ? I personally disagree with using an adapter like they do but I'm just a end user. Did you set it for senored only or did you set it for smart sense ? Either should work but....... I would assume that it is set for non sensored from the factory since you have to buy the sensor harness adapter seperate. 2s to 6s doesn't matter I run my mmp/3800 combo on 2s up to 4s and it does not cog but I've set timing at lowest and power setting to full so it will pull all the power it wants or needs from the battery.
10-30-2016 | 06:14 AM
#19
| + YouTube Video | |
-Minute 10.20" :P
They are starting to use that sensored thing... well other companys are doing it for more then a decade ago...
GOT your answer?
But I do agree that they're probably behind because they don't know sensor technology well since they haven't been doing it.
I have not tried the x esc's but have had a long relationship with my mmp and its been great. Two question for you. Did you double check that the sensor harness is plugged in correctly on the esc ? I personally disagree with using an adapter like they do but I'm just a end user. Did you set it for senored only or did you set it for smart sense ? Either should work but....... I would assume that it is set for non sensored from the factory since you have to buy the sensor harness adapter seperate. 2s to 6s doesn't matter I run my mmp/3800 combo on 2s up to 4s and it does not cog but I've set timing at lowest and power setting to full so it will pull all the power it wants or needs from the battery.
You can only set it to "Smart sense" in the MMX firmware. Sensored is not an option.
10-30-2016 | 06:21 AM
#20
Castle has been doing sensored since at least 2010 so its not like its all new to them. They just don't do sensored motors which I would think would change if they want to keep up with the rest of the manufacturers. Well dang I wasn't sure how the firmware was on the new ones but I seen that was two things that no one asked about yet. I had one motor that cogged until i overrode the power setting it was power hungry apparently.
10-30-2016 | 06:32 AM
#21
I ask this because I recently tried to test a motor with a sensor cable I hadn't used before and two motors would not work with it. On close inspection I found that the sensor cable was wired wrong. Those motors worked fine with a different sensor cable.
10-30-2016 | 09:19 AM
#22
Tech Elite
Joined: Aug 2016
Posts: 3,433
From: Detroit
gave up on castle a long time ago due to there bec failing on most esc i used.. tried a new pro esc but it would not calibrate to my forward on my radio.. what a waste of cash.. i think its your gearing.. try a larger spur if you can .. i think when you try to crawl its has too much resistance on your present gearing.. on a few crawlers i have i have as low as 10t pinions on 86 tooth spurs.. my crawlers are in the 6 pound range some have more weight..
10-30-2016 | 09:43 AM
#23
Castle has been doing sensored since at least 2010 so its not like its all new to them. They just don't do sensored motors which I would think would change if they want to keep up with the rest of the manufacturers. Well dang I wasn't sure how the firmware was on the new ones but I seen that was two things that no one asked about yet. I had one motor that cogged until i overrode the power setting it was power hungry apparently.
It cogs on low, medium, and high startup power.
When you tested with the Hobbywing, did you use the exact same sensor cable as when you tested with the MMX?
I ask this because I recently tried to test a motor with a sensor cable I hadn't used before and two motors would not work with it. On close inspection I found that the sensor cable was wired wrong. Those motors worked fine with a different sensor cable.
I ask this because I recently tried to test a motor with a sensor cable I hadn't used before and two motors would not work with it. On close inspection I found that the sensor cable was wired wrong. Those motors worked fine with a different sensor cable.
gave up on castle a long time ago due to there bec failing on most esc i used.. tried a new pro esc but it would not calibrate to my forward on my radio.. what a waste of cash.. i think its your gearing.. try a larger spur if you can .. i think when you try to crawl its has too much resistance on your present gearing.. on a few crawlers i have i have as low as 10t pinions on 86 tooth spurs.. my crawlers are in the 6 pound range some have more weight..
The gear spur/pinion gear ratio on my bomber is something like 5.33:1. If it needs a higher ratio to not cog I don't want to be bothered with it.
11-04-2016 | 05:55 PM
#25
Well I tried the bought a Holmes Hobbies Puller Pro since so many people said they worked great with MMX ESCs. I tried both of my MMX's, two different LiPos, different settings on the latest firmware, and even a Holmes sensor wire that gets rid of the Castle sensor harness and it still cogs just as bad as with the ROC412.
The Holmes motor also didn't cog on my 35A HobbyKing ESC, but the startup is so abrupt that I'm not sure I could have gotten it to cog if I wanted it. The ROC412 have a much better and smoother startup with this cheapo ESC.
I give up.
The Holmes motor also didn't cog on my 35A HobbyKing ESC, but the startup is so abrupt that I'm not sure I could have gotten it to cog if I wanted it. The ROC412 have a much better and smoother startup with this cheapo ESC.
I give up.
12-11-2016 | 09:13 AM
#28
Tech Rookie
Joined: Oct 2016
Posts: 3
Cogging w/ ROC 412
I purchased a Castle Mamba Monster X and Tekin ROC412 3100kV for my Axial Bomber kit. With any kind of speed it's an awesome setup. But when trying to crawl I'm getting bad cogging. See the two videos below.
The MMX cogs on both the Tekin ROC412 installed in the Bomber as well as a Yeah Racing 21.5T motor that I bench tested. I tried replacing the sensor cable and LiPo battery. I also unplugged the servo to ensure nothing else was drawing power. After speaking with Castle they concluded that something was wrong with the ESC so they sent me a replacement.
The replacement MMX has the same cogging on the same two motors. I even tried a new transmitter and receiver, but nothing stops the low speed cogging.
Castle stated I should not have any cogging with the default settings and that I shouldn't have to "tune" out the cogging with software settings
I've had nothing, but dislike for Castle in the past, but I decided to give them a second chance. Before I give up on Castle and write them off for good, does anybody have suggestions on how to fix this cogging?
The MMX cogs on both the Tekin ROC412 installed in the Bomber as well as a Yeah Racing 21.5T motor that I bench tested. I tried replacing the sensor cable and LiPo battery. I also unplugged the servo to ensure nothing else was drawing power. After speaking with Castle they concluded that something was wrong with the ESC so they sent me a replacement.
The replacement MMX has the same cogging on the same two motors. I even tried a new transmitter and receiver, but nothing stops the low speed cogging.
Castle stated I should not have any cogging with the default settings and that I shouldn't have to "tune" out the cogging with software settings
I've had nothing, but dislike for Castle in the past, but I decided to give them a second chance. Before I give up on Castle and write them off for good, does anybody have suggestions on how to fix this cogging?
| + YouTube Video | |
| + YouTube Video | |
Last edited by ChrisakaBiff; 01-12-2017 at 07:11 AM.
01-12-2017 | 07:13 AM
#29
Tech Rookie
Joined: Oct 2016
Posts: 3
I had this same issue with my Bomber with the exact same setup. Buttery smooth in reverse and cogging like a mofo crawling forward? I figured out the sensored motors don't like to run in reverse efficiently with the MMX for some reason?!? So I flipped my ring gears around front and rear to correct the motor direction to normal instead of reverse and bam, no more cogging!!! :-)
01-12-2017 | 08:27 AM
#30
You're not the only one having issues with cogging on 'crawler' motors on castle ESCs(MMp, MMx, etc)
Does the MMx have a 'sensored only' mode? I wonder if the esc is trying to switch from it's sensored startup to sensorless too soon.
ESCs like the HW are always sensored only, no option for sensorless.