Mmm2 slow take off. No full throttle starts
 

Hi guys just got my mmm2 to replace my original mmm. It's in a revo running 4s with a 2200 neu. My problem is when I punch the throttle it feels slow to take off. Like punch control is on. After a few feet it builds up and takes off.
I swapped back to my old monster and it rips as soon as I hit the throttle.
I remember my old monster did it one time when I updated the firmware so I went back to 1.24 and it had punch again but obviously I can't do that with a brand new mmm2.
Punch control is disabled and I'm using 65c packs so it can't be a lack of battery. Any ideas it won't even wheelie it just take off like I'm at a 1/4 throttle and then kicks in as its going. Feels like my motor has no torque to get the truck going

Sounds like punch control or current limiting is somehow engaged.

Any other firmware vers avail for mmm2?

That's exactly what it feels like but I have it all disabled. Is this the way they are set up now to be easier on the esc on takeoff I wonder? Like I said old esc everything the same takes off like a rocket.
No other firmware that I see listed in castle link.

Just called castle and they said they never really heard of it. I'm gonna do the kv test for the torque control and then turn it off. Maybe it doesn't know the kv so it's limiting current? I don't know. I hate having issues nobody ever heard of lol. It has to be something with newer firmware cause my old mmm does the same thing if I update the firmware.

Did some more testing. When I punch the throttle the green and yellow led light up till the rpms come up then the yellow goes out and I get full power. If I maintain some rpm and punch it I no longer get the yellow light and I get full power rite away, let the rpms drop to much and when you nail it the yellow light comes on with the green one again till the rpms come up again. Any ideas?

Bad controller, send it in

It's firmware related. If I update to 1.39 firmware on my old monsters it does the exact same thing. Once I go back to 1.32 it's fixed. You guys don't have this problem with 1.39 firmware in your monsters? If you give it throttle and the yellow light stays lit with the green one for two seconds you have the same issue.

That sounds like its staying in its "startup" algorithm too long. Firmware might be to blame, maybe try reinstalling the firmware if you can. The other possibility is the firmware is fine and the esc is staying in "startup" algorithm too long because it doesn't detect the emf feedback from the motor the way it should. If that's the case it's hardware related and needs to go back to Castle.

I sent castle a vid and they said the are aware of a few people with this problem but don't currently know the cause of it. It's in the firmware but I can't revert to older firmware cause the monster2 only has 1.39. I went back to 1.32 on my old ones and they are perfect. Oh well waiting on new firmware :)

On the Monster 1 anything newer than Firmware 1.24 does not have really nice startup parameters

goes from "odd" to "total fail"

I guess, the "good old" Version 1.24 for the Monster 1 does not work on the Monster 2

On the Monster 2 the 1.32 is currently the best choice, but not as nice as the 1.24 on the Monster 1

Same does apply to the Mamba Max Pro
Best Firmware here is 1.26

I had a talk with Richard this year on the Toy Fair in Nuernberg
regarding this issue and some other minor things on the latest firmware versions.

I offered some intensive firmware testing for Castle, but no reply yet.... :whistle:

I wish I could force some older firmware onto my monster 2 lol. Yeah 1.24 is nice . My monster2 only had 1.39 on it so I can't go back.

The days of being able to do things like that died when they encrypted the settings db.

There should be a patch fixing this issue later this week.

Thanx!

Patrick

Thanx Patrick...

Awesome! By patch you mean firmware update?

Prob a dumb question, but... does MM2 use the same firmware as the original MM? Same versions from 1.24 to all the betas?

Nope

At our RC Drag club we have been noticing that castle firmware has been getting softer and softer. Cars that were running 100+mph over the 132 foot track were all of a sudden running high 90's. That's not just one or two cars either and we always run the latest gen fresh TP batteries on a VHT prepared track. All the new records in Funny Car and Pro Stock have been using Tekins but my 2 year old Australian record in Top Fuel using an original MMax 1 still hasn't been knocked off.

It's the start power,it doesn't seem to let full power flow till the motor is going pretty good. Only thing I can think of is its easier on the controllers.
Patrick said a fix was coming so lets hope it fixes the mmm softie launch.

New version of Castle Link 3.55.00 is available on the website with firmware version 1.45 for the Monster and Max Pro. From the firmware revision notes:

1.45 Beta 05/28/13
Monster and Mamba Max Pro:
Significantly increased startup torque and the delay of power from start.

Please try updating your Monsters and Monster 2's to V1.45 and please report back your findings. Thanks!

Thomas Porfert
Tech Support
Castle Creations

Thomas

just installed Firmware 1.45 on my MMM (not the V2)

The response of the first 2% of throttle is more like switch
The car does not jump start like on previous version, but still not as good as on the 1.24 MMM Firmware, this version allows "Crawler Like" startups

Setup
Kyosho DRX
MMM
CC 1410 1Y
geared for about 30 mph
Tekno RC Traktion Drive (Slipper Clutch)
Timing "0"
Start Power Low

Here is video with Version 1.45
MMM @ Firmware Version 1.45

Version 1.24

MMM @ Firmware Version 1.24

I pulled the throttle careful just like you would drive out of the pits
On 1.24 is really depends on the position of the rotor how smooth you can start, but still 100% better than anything after this version

Hope that helps
Soory for the poor videos

EXCELLENT !!!! My mmm2 now works as good as the original ones I have . Very happy thanks guys. I can actually hear my slipper clutch again lol. Thanks castle

I agree 1.24 starts slightly nicer but I'm happy with 1.45

1.24 does start better -- but 1.45 adds a lot of safeties to the startup.

There were some issues with 1.24 and some motors / setups that would allow too much ripple current on the input capacitors. This could lead to damaging the input capacitors.

Thanx!