Lego PF-M Motors problem when combining 2 motors

[legovintage]

Hi, I've the same problem shown in this video:

Someone could explain me why it happens and if is possible solve it? Thanks!!!

Edited June 6, 2013 by legovintage

[LegoGBC]

Read here:

http://www.technicbricks.com/2012/11/lego-power-functions-incompatibilities.html

[legovintage]

thank you! it seems that the only solution is using two IR receivers, one for each motor, with same channel...or "just" wait the new motor :\ Lego really disappointed me this time... =.=

Edited June 6, 2013 by legovintage

[Phoxtane]

If you're looking to combine two M-motors together into one drivetrain, try using a differential between them.

[Zerobricks]

  On 6/6/2013 at 1:11 PM, Phoxtane said:

If you're looking to combine two M-motors together into one drivetrain, try using a differential between them.

That wont help here. This is an electricl issue, not mechanical... Just use the V1 receiver!

[Phoxtane]

Ah, that was going to be my second guess - isn't this the problem where the V2 receiver trips the M-motor's internal circuitry? Either way, Zblj is right. A V1 receiver ought to do nicely.

[legovintage]

I don't have it :P but good to know^^

[dhc6twinotter]

So, I'm confused. Why would the V2 receiver work with 2 L motors, but not 2 m motors? I thought the V2 receiver was supposed to be better when used with 2 motors?

EDIT: Nevermind....I should have read the link posted earlier first. I didn't know there were issues with the V2 receiver and the m motors. Pretty interesting and good to know.

Edited June 7, 2013 by dhc6twinotter