I am brand new to 3-D printing and I was wondering would a 3-D printer need tolerance of some sort.
When using the printed model as you would a (rough) casting and the material in it's final condition lends itself to be reworked properly, I'd say yes. Form/size would be able to be controlled.
I am not sure you can use the end product with press-fit limits... materials may be too brittle/soft.
If you are going to use the printed model without reworking, I'd say it is near impossible to control the printing conditions to give you any real limits & fits (within tolerances controlled to 0.001mm).
Thanks! Really appreciate the answer.