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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Motorised skew adjustment - any ideas?
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<blockquote data-quote="kingkad" data-source="post: 837739" data-attributes="member: 366041"><p>This is my current idea.</p><p></p><p>1. Get an LNB with a nice uniform collar e.g</p><p></p><p>40mm</p><p>[ATTACH]53197[/ATTACH]</p><p></p><p>or 60mm</p><p>[ATTACH]53198[/ATTACH]</p><p></p><p>2. Then get 2 bearings with an internal diameter 1-2m bigger than the LNB collar and sleeve it on to the LNB. On the 60mm LNB shown this will be quite easy as the feed is detachable but on the inverto you would have to cut carefully around the end of the LNB collar near the feed, sleeve on the bearings and then stick the plastic feed cap back on.</p><p>[ATTACH]53203[/ATTACH]</p><p></p><p></p><p>3. The on the back of the LNB, find the centre point of the LNB on both axis. On the LNB below its marked quite nicely with a dimple (and my arrow)</p><p>[ATTACH]53200[/ATTACH]</p><p>Then you need to get an RC servo like below:</p><p>[ATTACH]53201[/ATTACH]</p><p>And glue the gold (rotating part) of the servo exactly to the centre point on the back of the LNB</p><p></p><p>4. Then you have to glue some metal rods on opposite sides (at each end of the horizontal line) of one of the bearings (the other bearing is the new collar for attaching LNB in mount)</p><p>[ATTACH]53204[/ATTACH]</p><p>And then attach a metal rod on the end of the triangle above which runs parallel to the LNB going to the back of the LNB. Then another metal rod on the back of the servo connecting to the parallel rod</p><p></p><p>e.g (my image in paint)</p><p>[ATTACH]53205[/ATTACH]</p><p></p><p>Then you just use RC controls to move the LNB with the servo however accurately you need, e.g steps of 0.5degrees for every click.</p></blockquote><p></p>
[QUOTE="kingkad, post: 837739, member: 366041"] This is my current idea. 1. Get an LNB with a nice uniform collar e.g 40mm [ATTACH]53197.IPB[/ATTACH] or 60mm [ATTACH]53198.IPB[/ATTACH] 2. Then get 2 bearings with an internal diameter 1-2m bigger than the LNB collar and sleeve it on to the LNB. On the 60mm LNB shown this will be quite easy as the feed is detachable but on the inverto you would have to cut carefully around the end of the LNB collar near the feed, sleeve on the bearings and then stick the plastic feed cap back on. [ATTACH]53203.IPB[/ATTACH] 3. The on the back of the LNB, find the centre point of the LNB on both axis. On the LNB below its marked quite nicely with a dimple (and my arrow) [ATTACH]53200.IPB[/ATTACH] Then you need to get an RC servo like below: [ATTACH]53201.IPB[/ATTACH] And glue the gold (rotating part) of the servo exactly to the centre point on the back of the LNB 4. Then you have to glue some metal rods on opposite sides (at each end of the horizontal line) of one of the bearings (the other bearing is the new collar for attaching LNB in mount) [ATTACH]53204.IPB[/ATTACH] And then attach a metal rod on the end of the triangle above which runs parallel to the LNB going to the back of the LNB. Then another metal rod on the back of the servo connecting to the parallel rod e.g (my image in paint) [ATTACH]53205.IPB[/ATTACH] Then you just use RC controls to move the LNB with the servo however accurately you need, e.g steps of 0.5degrees for every click. [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Motorised skew adjustment - any ideas?
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