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<blockquote data-quote="a33" data-source="post: 1089976" data-attributes="member: 332642">I just checked it, and it seems 100% OK.So with my above formulae, you just need to take four measures at the mount, and then with the USALS angle you can simply calculate every actuator length you want to know.By the way: The range for the cosine (so: the range for the sum of ZeroAngle + USALSAngle) must be between the theoretical max of 0 to 180 degrees, for the triangle T-A-BB.In practice, you'd probably need to take the triangle T-A-B for this range, but as the range from 0 to 180 is impossible for such a mount anyhow (not wanting the actuator 'flipping over' the axis), I think you'd have to limit the range for T- A-BB to 15 to 165 degrees or so? (Cannot test with a mount myself ATM.)I'm afraid this system of yours is over my head; I just learned maths at school, and some bits of programming in BASIC and Excell after that.In the calculations above, is it your aim to calculate limits for the actuator length/USALS angle?The theoretical max range for the actuator length would be from (Radius - DishpivotAxis, or TA - ABB ) to (Radius + DishpivotAxis, or TA +ABB ), for my triangle T-A-BB. Though this maximum (of 0 - 180 degrees), of course, must NEVER be reached.How did you get to the numbers 210 and 550?Using these two numbers in the T-A-BB-B-figure, my equation gives the USALS angle range from 25.79 to 159.62 degrees. So different from your numbers -67.27 to 80.0125. Or are we talking about different things here?Greetz,A33</blockquote>

[QUOTE="a33, post: 1089976, member: 332642"] I just checked it, and it seems 100% OK. [B]So with my above formulae, you just need to take four measures at the mount, and then with the USALS angle you can simply calculate every actuator length you want to know[/B]. By the way: [B]The range for the cosine[/B] (so: the range for the sum of ZeroAngle + USALSAngle) must be between [B]the theoretical max of 0 to 180 degrees[/B], for the triangle T-A-BB. In practice, you'd probably need to take the triangle T-A-B for this range, but [B]as the range from 0 to 180 is impossible for such a mount anyhow[/B] (not wanting the actuator 'flipping over' the axis), I think you'd have to limit the range for T- A-BB to [B]15 to 165 degrees or so[/B]? (Cannot test with a mount myself ATM.) I'm afraid this system of yours is over my head; I just learned maths at school, and some bits of programming in BASIC and Excell after that. In the calculations above, is it your aim to calculate limits for the actuator length/USALS angle? The theoretical max range for the actuator length would be from (Radius - DishpivotAxis, or TA - ABB ) to (Radius + DishpivotAxis, or TA +ABB ), for my triangle T-A-BB. Though this maximum (of 0 - 180 degrees), of course, must NEVER be reached. How did you get to the numbers 210 and 550? Using these two numbers in the T-A-BB-B-figure, my equation gives the USALS angle range from 25.79 to 159.62 degrees. So different from your numbers -67.27 to 80.0125. Or are we talking about different things here? Greetz, A33 [/QUOTE]

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