ESU and NN3/Z scale

[vermonter_railfan]

So I am currently working on some NN3 projects for the SPNG. I am currently working on one of the slim princess's using a T R Knapp kit from 3DP, the kit uses a Rokuhan C57 Z scale steam engine for the base. I wanted to test the locomotive on DCC (eventually sound maybe).

What I wanted to know, is there anyway to limit the amount of voltage going to a motor with ESU? I know that most of the motors that are small enough to work with this project are only rated for 3-4v, and before I go out and purchase a 12v motor I wanted to see if I could limit the amount of power going to the motor via the decoder itself and not a resistor.

[peteski]

This was recently discussed in the ESU LokSound group.
https://groups.io/g/Loksound/topic/3_volt_motors_decoders/113464184
I believe you can access that thread without being a member of the group.
My suggestion is to get a 12V motor (if that is an option).