On 21 July 2016 at 15:32, Jon Elson <[email protected]> wrote: > He used a molybdenum > wire that ran back and forth between large rollers. So, he probably had > something like 20 feet of wire in the machine, and it reversed when it > neared either end.
I used a diamond-wire saw working on that principle when I was an electron microscopy student. Probably one of these: http://www.ebay.com/itm/Well-Diamond-Wire-Saw-model-3241-Walter-Ebner-/171667745233 There is the advantage that you don't need to make a continuous loop of wire, which would be difficult to do without a thick-spot in the loop. IIRC the wire is in a spiral groove in a pulley that advances on a thread of the same pitch between microswitches. As an alternative to the thread and spiral (and compatible with a cintinuous looop) you could use a sheave system as used on lifts to store the wire: http://thediagram.com/14_5/differentmethods.html See the examples with an idler sheave and traction sheave. Both have parallel rather than spiral grooves. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports.http://sdm.link/zohodev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
