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Plus infinitely variable dc motor-driven feeds. That's a nice touch.
Yabbut, the Acieras have had infinitely variable feeds since the 1950s without relying on electronics. They use a Reeves drive variant. The Aciera feed system also has a clever "works-in-a-drawer" design that makes servicing the feed transmission very easy.
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Think idlers only work well if the direction is always the same (idler needs to be on the unloaded ,non pulling side)....Lathe spindle needs reverse, hence no idler....
Cheers Ross
Unlike a normal Reeves in which one sheave is spring-loaded or the whole motor is spring-loaded on its base, the Aciera feed drive moves both sheaves in direct relation. When one is moved inward, the other moves outward by the same amount. The idler maintains the belt tension, and it is a weight, instead of spring-loaded. Hence, and Aciera F4 or F5 would function poorly in zero-gravity outer space ;-) .
I figured Central Oregon might be a long shot but have often been surprised by what I find in Bend OR.
Interesting...I didn't remember my (now your) F4 having that. Still, turning a tiny nearly frictionless dial for axis feed would be way nicer than cranking a hand wheel for feed speed. Plus the late Deckels can be used on the space station assuming "payload" within tolerance of the delivering rocketYabbut, the Acieras have had infinitely variable feeds since the 1950s without relying on electronics. They use a Reeves drive variant. The Aciera feed system also has a clever "works-in-a-drawer" design that makes servicing the feed transmission very easy.
I'd be weary of the mh-700. I've seen it and know who previously owned it. Didn't look like a bad machine, but the current owner has a bad rep. So if you decide to purchase it make sure you get all the stuff you were promised or you'll never get it. They are a little bigger but there is some advantages and disadvantages. My mh-800 isn't that big (or so it seems to me) it does weigh a lot compared to deckels, and it's supposed to be a almost jig bore with the accuracy promised. It's very hard to find parts and accessories for them. So I'd recommend a deckel unless the maho is VERY well tooled. They tend to be cheaper too. Whatever you choose the later the better typically. Oh and 40 taper is highly recommended as you can actually get tooling easily.
I've got an FP1 and an FP2nc in Eugene if you're interested. Doesn't sound like you're looking at NCs, though, and the FP1 isn't under power currently. Should be moving into a new shop in a couple months where it'll be back in service.
Teryk
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As an aside, isn't it an amazing thought that a Deckel FP2 or Aciera F5 could be "floating" in zero G.... no need for jacks or skates, just gently* push it to where you need it and lock 'er down ! LOL... metal chips flying everywhere could be problematic of course....Plus the late Deckels can be used on the space station assuming "payload" within tolerance of the delivering rocket
Interesting...I didn't remember my (now your) F4 having that. Still, turning a tiny nearly frictionless dial for axis feed would be way nicer than cranking a hand wheel for feed speed.
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