YOU HAVE TO MERGE AND SCALE THIS OBJECT WITH YOUR SLICER FIRST CHECK THE FREE-CAD-FILE AND TELL ME WHY FUSION DOESNT WORK - 17mm - HIGHT - MATCH INTO THE MOST DRAINS: - JUST MERGE IT AND SCALE IT TO 50% - 13mm AND 9,5mm - HIGHT: - OPEN CURA (OR YOUR FAVORITE SLICER) LOAD BOTH FILES - PUT BOTH OBJECT AT THE SAME COORDINATES AND MELT THEM - COPY THE MELTED OBJECT ONE TIME - TURN IT ARROUND (Z-AXIS) FOR 90 OR 180 DEGREE, MELT IT AGAIN - ACTIVATE SNAP-SCALE AND UNIFORM-SCALE, SCALE IT TO 50% (SAY X-AXIS) - RESULTS: - TOTAL HIGHT: 9,5mm - 13mm - 17mm - OUTSIDE DIAMETER, CYLINDER: 42mm - OUTSIDE DIAMETER, TOTAL: 72mm - GRID HIGHT: 2mm - TO SEE THE PROBLEM: - CHECK THE X-RAY - YOU WILL SEE 2 ERRORS - CHECK LAYER VIEW - YOU WILL SEE ITS FIXED - MESH DOES NOT WORK - CHECK THE CAD FILE AND TELL ME WHAT THE PROBLEM IS, IF YOU CAN