Q150T Sample Preparation System10473 - Issue 5 64 Q150T - Instruction Manual7.6 Rotacota StageThe Rotacota stage (10360) is an offset rotating stage, with tilting sample holder,designed to improve the even distribution of sputtering or evaporation (see Figure 7-11).1. Check the machine is not operating.2. Open the top cover fully so it rests against its backstop.3. Remove any installed sample stage by lifting carefully upwards.4. Fit the RotaCota stage:a. Locate its shaft in the top of the stage rotation drive spigot protrudingfrom the baseplate.b. With a twisting motion, push it gently down until the base collar rests onthe baseplate. Locate one of the four cut-outs by the shield fixing screw.5. Adjust the angle of the stage (up to 30° from horizontal):a. Slacken the screws in the side of the shield.b. Angle the stage as required.c. Re tighten the screws before use.Figure 7-11. Rotacota stageTilting adjustment screwStage shaftRotation drivespigot