MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Yes, the connecting rod was not scaled properly. you can either redownload it or scale to 35%. As for the crank gear it should be right. You should have the crank gear, then a revered 16t gear, then a 16t gear, then a revered 30t gear, and then finally the cam gear.