On Fri, 2008-03-07 at 17:05 -0500, Dave Keeton wrote: > If it is like a Barrafaldi or a Duplomatic I can help......I have installed > both of these.......It looks alot like them and I would assume they use the > same kind of encoder. Reading the encoder is fairly easy using ladder, If > you happen to have FAPT Ladder III editing software I can send you what I > wrote for this. I installed a Duplomatic turret on a Fanuc 21i TB controlled > lathe about 6 months ago. Alot of these turrets are built and operate pretty > much the same. I can get you the time and operation sequence if you need it. > Timing on these turrets is critical. Control (including propagation delay) > should be very accurate to +- 10ms or it will mis-index. What questions do > you have?
I have my Hardinge HNC turret working through an HAL module. Part of what makes EMC and HAL so cool is that it allows someone with my skills to make it work. I am looking for general design examples, in order to try to come up with a design for lathe tool changers for Sherline and bench-top class machines. The issues that are bothering me now are how to stop the turret in eight positions, with high accuracy and rigidity. The Hardinge accomplishes this by having just one broad and short zero clearance interface between the movable turret table and the carriage. Plus a pneumatic piston which clamps evenly across the table. I won't be using pneumatics, so I can't utilize the Hardinge design for clamping. And the other examples I have seen don't have the two direction motion (rise rotate, park) of the Hardinge, suggesting a different internal design altogether. Checking the Barufaldi and Duplomatic links: http://www.baruffaldi.it/eng/interne/prodotti/macchine_utensili/index.html http://www.duplomatic.com/duplomatic/auto/uk/2/frame2.html reminded me that I need to worry about live tooling too. ;) -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending) ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
