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Hi! After printing all parts, I have started building my engine.....but I'm having some problems with my crank. I've printed all parts fine, I'm sure all parts are in correct size (printer calibrated) and using correct parts (608zz, etc etc)....but my crank is not fitting right into engine block. I've checked and some parts of crank looks different from another one (but individual parts are with exactly same size!). Also, I'm using that groove of parts to fit bearings, that one small, not the biggest groove on parts (see the last picture with arrow on that groove). I'm not sure that's wrong there. Apreciate any help!