3 motor gearbox

[548swimmer]

Originally Posted by A_Reed

You can add the power of the motors in each gearbox. Power is absolute and additive and if you know the relationship between power, torque and speed (P=T*n (with proper units/conversions)) you can define all of the characteristics of your motors in your gearbox.

If you look through the CD white papers you can find a topic on 'traction limited' drive trains and what maximum gear ratio can be used so that you don't trip breakers and your wheels don't slip.

As far as max speed and max acceleration go, that is something I have been working to understanding myself and I have a spread sheet made up for my own understanding of the topic. Maybe that topic can be answered by someone wiser than I.

JVN's drive-train calculator is also very nice and I recommend it for quick design checks, but it can be a little bit of trouble when you start mixing motor inputs. I wanted to see how the numbers worked so I did my own math and checked it with JVN with mixed results based on my own design assumptions.

I've got the math behind how it will work down, I'm interested more in the construction aspect.

What motor characteristics need to align to pull off a gearbox with different motors?