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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
My Channel Master 1.8 project.
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<blockquote data-quote="a33" data-source="post: 1124900" data-attributes="member: 332642"><p>Are there practical guidelines, to choose the ratio between the distances of the two fixing points to the rotation axis?</p><p></p><p>I noticed (by doing some rough calculations) that the <em>'zone of highest accuracy</em>' shifts,</p><p>from the maximum retracted actuator zone when the ratio is 1 : 1;</p><p>to about 50 rotational degrees from max.retracted zone, when the ratio is 1 : 1,5;</p><p>to about 65 rotational degrees from max.retracted zone, when the ratio is 1 : 2;</p><p>to about 75 rotational degrees from max.retracted zone, when the ratio is 1 : 3.</p><p></p><p>(For the calculation approach, I've taken max retracted as zero degrees, and max extended as 180 degrees [no more triangle, but opposites]; as the theoretical maximum possible range.)</p><p></p><p>It's the first time that I did calculations on that, so I'd be curious to hear how people in praxis determine what ratio they choose for their actuator mounting points?</p><p></p><p>greetz,</p><p>A33</p></blockquote><p></p>
[QUOTE="a33, post: 1124900, member: 332642"] Are there practical guidelines, to choose the ratio between the distances of the two fixing points to the rotation axis? I noticed (by doing some rough calculations) that the [I]'zone of highest accuracy[/I]' shifts, from the maximum retracted actuator zone when the ratio is 1 : 1; to about 50 rotational degrees from max.retracted zone, when the ratio is 1 : 1,5; to about 65 rotational degrees from max.retracted zone, when the ratio is 1 : 2; to about 75 rotational degrees from max.retracted zone, when the ratio is 1 : 3. (For the calculation approach, I've taken max retracted as zero degrees, and max extended as 180 degrees [no more triangle, but opposites]; as the theoretical maximum possible range.) It's the first time that I did calculations on that, so I'd be curious to hear how people in praxis determine what ratio they choose for their actuator mounting points? greetz, A33 [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
My Channel Master 1.8 project.
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