2009/6/12 Steve Blackmore <[email protected]> > > Nahh - it's only inches <G> But, as it's mainly cutting ply, laminate > and the odd Al sheet it's plenty good enough. > > 2 x 30mm wide belt, very high tension. A word of warning - The belt > tension is often more than the rest of the bearings/mounts can stand so > be careful there. Don't ask how I know that.. > > ...<cut>...
> One way to get good results with belts is to strobe them at full speed > and watch the first tooth engaged by the pulley. If the tooth is trying > to climb out, it's too slack. That fault often shows after a time as a > line of wear on the pulley teeth near the crest, but it's a bit late > then. > > > > >We thought about a way to get rid of that last flex and thought about > >some mechanism which measures the tension dynamically and tweaks an > >idler pulley accordingly. > > I put idlers on that one initially - caused bizarre resonance problems > at different speeds, best without if you can get the tension high > enough. > > Steve Blackmore There's another way to make a belt drive tight, have a look at http://www.youtube.com/watch?v=OdJoVh6DRPA It shows in the end how it's mounted. The stress/stretch factor on the belt this way is decent. I doubt the pat. pend though, I've seen it before and the company I order belts from even have special profiles for this setup. --S ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
