Hello everyone, I have a few questions regarding chain tensioning.
First of all I understand that when it comes to chains, there is always going to be a need for some kind of a tensioner since the roller chain stretches under the tension they are under over time, however I have read 1114’s presentation in which they explain that when properly calculating the center distance between 2 sprockets chain tensioning can be avoided, but I still see teams who are calculating the center distance correctly use tensioners, is it just me thinking they calculated the distance correctly when they didn’t or am I missing something? Plus I was wondering how sprocket size, sprocket teeth and chain size can help reduce the need for tensioning.
In addition, chain tensioning in frc is generally talked about under the subject of drivetrains, however chains on robots are used on many different types of mechanisms like arms, elevators, intakes, climbers and so on, but when searching information about those mechanisms, chain tensioning is overlooked. Is chain tensioners necessary on mechanisms other then the drivetrain?
Thanks in advance for taking the time to help me.