Looking for a simple few things

[MartinM-dev]

Hi

I'm a newbe in Python and i have lot things to learn.

I'm trying to move a trolley on rail.

When i start, i need to drive the trolley to the "Zero Position" and set this position to 0. I don't know how to set current position to zero.

I also want to change the speed of my trolley or better, set a time to go reach the target position.

i hope someone will help me.

Thank you