Thanks to all who responded!
All working now!

Thanks to all who responded!
All working now!

Ok thanks. Sounds like it will be much easier to get another extruder, with the matching ratio.

@o_lampe both are mbg gears, one is belt driven 4:1, the other is the regular 3:1

@o_lampe Don't think I made it clear. The dual extruder set up is to drive the single filament line. The purpose is, that the light motor used with the direct extruder is helped by the other extruder, at the other end of the bowden. Basically they are working as a single unit, just helping each other. The problem is, the extruders have the different ratiosand will require different steps per mm values, so I can't just connect the motors in series.

@zapta both always on.

Hello,
I'd like to use 2 different extruders, with 2 motors and 2 drivers and one hotend.
The point is to use a very small stepper, for the direct extruder and a larger one, for the bowden. The extruders have 3:1 and 4:1 ratio, so I will be using 2 drivers. I understand people questioning such an idea, but I have some reasons for that.
My question is, is there any simple solution, to map 2 motors to 1 tool, to work simultaneously.
Thank you.