If the first printing of the objects does not succeed, then adjust them with the zoom function of your Slicer. Alternatively, you can adjust the material flow and temperatures for better results. The following probably applies to all versions of the Ultimaker Cura Slicer. *If the file with the correct dimensions "BondTech-(UM2-Int).STL" fails to print, try "BondTech-(UM2-IntPlus).STL". This object already has slightly larger dimensions.