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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Actuators AGAIN ...
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<blockquote data-quote="archive10" data-source="post: 938518"><p>It does require the two actuators to be extremely well made, so they perform equally wrsp speed, torque-up etc.</p><p>Possibly also a digital control of the torque etc, much like in cars for traction control.</p><p>Not likely in the price brackets we're dealing with here.</p><p></p><p>I did however, see a similar arrangement on a snow-plough attachment to a tractor the other day, with two actuators fitted one to each side of the plough so it could be swung left and right. </p><p>But I assume that that particular arrangement is due to those "actuators" being pneumatic, meaning that they can only extend, not contract. So when one is used, the valve for the other one is open to allow air to escape as the piston is pushed back in.</p><p>This is unfortunately not going to work in spindle-driver actuators...</p><p></p><p>Very interesting point.</p><p>Maybe a counterweight on heavily loaded dishes such as VS's (sorry VS if yours already is - I can't remember) could extend the lives of the el-cheapo actuators we currently have available?</p><p>Sure, it works without it, but maybe it would work much longer if balanced?</p></blockquote><p></p>
[QUOTE="archive10, post: 938518"] It does require the two actuators to be extremely well made, so they perform equally wrsp speed, torque-up etc. Possibly also a digital control of the torque etc, much like in cars for traction control. Not likely in the price brackets we're dealing with here. I did however, see a similar arrangement on a snow-plough attachment to a tractor the other day, with two actuators fitted one to each side of the plough so it could be swung left and right. But I assume that that particular arrangement is due to those "actuators" being pneumatic, meaning that they can only extend, not contract. So when one is used, the valve for the other one is open to allow air to escape as the piston is pushed back in. This is unfortunately not going to work in spindle-driver actuators... Very interesting point. Maybe a counterweight on heavily loaded dishes such as VS's (sorry VS if yours already is - I can't remember) could extend the lives of the el-cheapo actuators we currently have available? Sure, it works without it, but maybe it would work much longer if balanced? [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Actuators AGAIN ...
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