I’m a little confused by the Set Truck Tension instructions from the Primo build guide.
It states that for “new prints” you can fasten the bolts and nuts until they both sit against the plastic of the 3D printed truck part.
However, if I do that there’s still some play, when I apply a lateral force and the truck sits on the rail. It wiggles ever so slightly, which I guess means that not all five bearings must be in contact with the rail.
Maybe my prints are too old for this to work? What’s considered a “new print”?
Furthermore, I find it rather hard to know - when fastening the bolts and nuts beyond them only sitting against the plastic - how much tension should be applied!
Is it generally better to have some tension that you for instance feel when sliding the truck off the rail. It’s a feeling of a little resistance when you slide the truck on and some letting-go when sliding if off. It grips the rail a little, if that makes sense. Or should the truck be looser?
I get that the trucks should slide slowly downwards under a 45° rail angle, however how slow?