hello, i am new to the whole world of 3d printing. i bought a printrbot jr, i use google sketchup, and i use repetier. it can do ABS and PLA as im sure you all know. i feel like the PLA has more detail, but i like being able to acetone smooth the ABS. however, i keep getting some buildup on the bottom of my prints. also, it seems like it does not print smaller details very well. and finally, i want to know how to get a nice finish on the face of my objects. when it prints the final layer, it seems to make the face really rough. and when it is "cross hatching" im not sure what the technical term is, it sounds like it is making contact with the layer underneath. can somebody please help. the picture is the buildup material that i am talking about. basically, i want to have nice, high quality prints that i can sell and wont have people look at the product and think its bad workmanship. any insight would be helpfull.
thank you



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