The 10.5 thread

[Mark Townsend]

Of my three brushless motors only one seems to enjoy cogging off the line. I've tried gearing it right down and still have the problem.

Pretty sure it's not speedo related as all the other BL motors are AOK. The question is how do you 'cure' cogging or am I looking at a warranty claim with Mr Booth?

Any ideas guys?

[yellowshark]

Mark there is good long thread on this subject on Racechat - can't remember but presumably under the "Brushless motors" section

[lesbaldry]

Wich one's cogging Mark? not my Trinity I hope?....an Orion prehaps ...are you using the Nosram/LRP speedo with it?

Have you tried extreem punch settings,ie test on max and min..I may be guessing hear but one of my BL mods does the same on a very low punch setting,just by using one setting higher stopped the "stutter" off the line??

[TryHard]

I think it was his new LRP... which is really odd!

Things to try curing cogging...
Sensor wire - change it over, and try another one (think you tired this)
Check the sensor plug connections - both on the speedo and motor
Clean the sensor's inside - Take the motor apart, and run a cotten bud soaked in brake cleaner over the sensor's.

Actually, one other thing you can do is too check the sensor board is secure... it's a little known issue that on some of the mod LRP/Nosram motors, the board can move, altering the timing during a run! Not sure if this still happens with the 10.5 though.

Ed

[Mark Townsend]

Yep LRP was cogging just on take off. Punch settings are all down to minimum so might be worth trying to boost them a touch.

I guess this was always going to be the problem with an electronics driven technology. That as soon as it goes wrong or an issue appears you need a degree in electronics or it's back to the manufacturers. Gone are the days of a simple sticky brush or replacement capacitor across the terminals.

Anyone know the address of the Open Uni?

I feel a second degree coming on!

[lesbaldry]

Aug 12, 2008 17:04:09 GMT Mark Townsend said:

Yep LRP was cogging just on take off. Punch settings are all down to minimum so might be worth trying to boost them a touch.

I guess this was always going to be the problem with an electronics driven technology. That as soon as it goes wrong or an issue appears you need a degree in electronics or it's back to the manufacturers. Gone are the days of a simple sticky brush or replacement capacitor across the terminals.

Anyone know the address of the Open Uni?

I feel a second degree coming on!

Its odd that a new"known" make has a prob,the early medium mod wind Vectors did suffer the dreaded stutter,it's possible its the motor as it seems your others are ok???...saterday is looking pants! shame we could have done a "swop check test" just to elliminate your speedo??...lets hope a punch setting cures it?

Remember the early Vector that Jeff and I played with at Calshot somtime ago " 6.5 wind I think"..we tried them at the track "6 cell,10.0 FDR" to make the little beast drivable we dropped the punch to min..wrong!!..it was like driving a car with 6 inch square wheels on take off ;D

[TryHard]

Have to admit, I have my speedo set up on a 1,7,0,0 combo (LRP TC Spec) when running 10.5t/LiPo, might drop it back too 1,6,0,0 depending on track conditions.

For mod I'lll run the speedo at 2,3,0,0 or 2,4,0,0 depending on motor (3.5 or 4.5). Occasionally if the tracks a bit tight, might throw in some drag brake (setting 1 or 2 for the last number), but thats about it.

[Simon Crabb]

Aug 13, 2008 8:44:37 GMT TryHard said:

Have to admit, I have my speedo set up on a 1,7,0,0 combo (LRP TC Spec) when running 10.5t/LiPo, might drop it back too 1,6,0,0 depending on track conditions.

Hmm, my Sphere only goes up to 6, not 7 for the punch setting?

(To help the uninitiated, 1st number is cells, 2nd is punch, 3rd initial brake, 4th drag brake)

[TryHard]

Is it an original Sphere or a Comptetion spec?
The TC Spec has 8 profiles for brushless (ADPC), and 6 for brushed (DEMS), where as all the others have 6 for both.

HiH
Ed

[Simon Crabb]

Ahh, tis the original one.