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<blockquote data-quote="s-band" data-source="post: 1030861" data-attributes="member: 407744">The lighter pan &amp; tilt is fine for the CM 1.2m but I wanted something that could take the Prodelin 1.2m which weighs 25kg for the reflector alone. Pelco make units that can take 40kg and have worm drives. I could only find 115VAC versions at a reasonable price, so that's what's here. I used the original technique to add the optical feedback. This time with only 2 spokes on the choppers as the RC2000 can not keep up with pulses &lt;10ms. I had to drill &amp; tap the motor shafts to fit the choppers. (1st pic) The motors have PTFE brakes that rub on disks to prevent over-run. These had to be refurbished. There were a few bits that needed adjustment &amp; re-greasing as the unit must have been quite old.The 2nd pic shows the pan &amp; tilt with the original for comparison. The RC2000 interface (+/-36VDC to 115VAC switching) at the bottom. The 3rd pic is where I was in the process of balancing the thing (I'll add a 2nd rear arm later). It needed 7.5kg once the feed support was added and will need another kg or so when the electronics is attached.Getting closer to an Egis;-) It could take a 1.8m Laminas but I'm not going there.[ATTACH]111687[/ATTACH] [ATTACH]111686[/ATTACH] [ATTACH]111685[/ATTACH]</blockquote>

[QUOTE="s-band, post: 1030861, member: 407744"] The lighter pan & tilt is fine for the CM 1.2m but I wanted something that could take the Prodelin 1.2m which weighs 25kg for the reflector alone. Pelco make units that can take 40kg and have worm drives. I could only find 115VAC versions at a reasonable price, so that's what's here. I used the original technique to add the optical feedback. This time with only 2 spokes on the choppers as the RC2000 can not keep up with pulses <10ms. I had to drill & tap the motor shafts to fit the choppers. (1st pic) The motors have PTFE brakes that rub on disks to prevent over-run. These had to be refurbished. There were a few bits that needed adjustment & re-greasing as the unit must have been quite old. The 2nd pic shows the pan & tilt with the original for comparison. The RC2000 interface (+/-36VDC to 115VAC switching) at the bottom. The 3rd pic is where I was in the process of balancing the thing (I'll add a 2nd rear arm later). It needed 7.5kg once the feed support was added and will need another kg or so when the electronics is attached. Getting closer to an Egis;-) It could take a 1.8m Laminas but I'm not going there. [ATTACH]111687[/ATTACH] [ATTACH]111686[/ATTACH] [ATTACH]111685[/ATTACH] [/QUOTE]

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