I'm trying to incorporate as many models into a single order as possible to save on processing costs. I've had them individually printed or in sets in the past, but prices on new pieces have in effect doubled. My old models were saved at .01mm tolerance in stl, but it produces too large of a file, so had to lower the tolerance to .9mm. how can i determine what the effect will be on my models? I don't want to pay for expedited processing and I certainly don't want to have a very large file made if the parts will be no good. Thanks!