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<blockquote data-quote="Captain Jack" data-source="post: 972164" data-attributes="member: 243342">And today I've been reminded why 1224 rules the roost. The jack that I am using is rock solid - there's only a teeeny bit of play in spheric joints but nothing major beyond that. However, with that on, there's far more play at the extremes (west for me) than there ever was with the Jumbo. Yes, it is more solid in the middle and the east of the arc but... sigh. I can only get down to 49 east until the mount runs into itself. Not a huge deal as I can't see beyond 53 east anyway... and I don't actually know how far west I can go. It looks like 58W should be OK but this is guess-work and the dish is almost about to flop at that extreme. Lastly, the resolution of this SuperJack XL HQ or whatever it's called, is pathetic. around 10 pulse counts per degree! Which makes it rather prone to miscount. Compare that to 1224, which is about 25-30 counts per degree. Looking online, that ball screw Venture is about 15 pulses per degree (depending on where you are on the arc, of course)... Ahhh... now the dilemma of whether to put the Jumbo back on or live with this.</blockquote>

[QUOTE="Captain Jack, post: 972164, member: 243342"] And today I've been reminded why 1224 rules the roost. The jack that I am using is rock solid - there's only a teeeny bit of play in spheric joints but nothing major beyond that. However, with that on, there's far more play at the extremes (west for me) than there ever was with the Jumbo. Yes, it is more solid in the middle and the east of the arc but... sigh. I can only get down to 49 east until the mount runs into itself. Not a huge deal as I can't see beyond 53 east anyway... and I don't actually know how far west I can go. It looks like 58W should be OK but this is guess-work and the dish is almost about to flop at that extreme. Lastly, the resolution of this SuperJack XL HQ or whatever it's called, is pathetic. around 10 pulse counts per degree! Which makes it rather prone to miscount. Compare that to 1224, which is about 25-30 counts per degree. Looking online, that ball screw Venture is about 15 pulses per degree (depending on where you are on the arc, of course)... Ahhh... now the dilemma of whether to put the Jumbo back on or live with this. [/QUOTE]

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