"Rule of thumb" belt tensioning...

[Overclocker]

from http://www.edriveactuators.com/catalogs/htd.pdf

now here's my modified GNG:

t = 4.78

so DEFLECTION is 0.0746875 or about 1.9mm (using a force of 1 to 2 pounds)

is this a good rule of thumb?

 

[spinningmagnets]

Sounds about right. Too tight and unloaded friction and bearing wear gets worse, too loose and it will slip/skip/ratchet under max loads...leading to rapid tooth wear.

 

[Vanarian]

I'm following this it is useful! Thanks!