Re: [CAD_CAM_EDM_DRO] Re: Which rotary table to CNC?

At 05:36 27/03/2003 +0000, you wrote:

>John,
>
>A question on the "Divisionmaster".....I see that it has a signal
>back to CNC machines or whatever triggered it to indicate it has
>completed it's move. Can the completion signal be sent prior to
>move so the unit can be used for milling a helix?
>
>I have a Haas 5C indexer which can be set to send the signal after
>move for a simple index or before so the CNC and the indexer can be
>moved simultaneously. Actually it takes a little trial and error
>with dwell times and feedrates in the CNC control to get the
>movements synchronized.
>
>If the unit can be used for milling as above, do you know what the
>maximum angular move is? Most of the programable units like Haas
>have a limit of 1000 degrees per move which makes milling a helix of
>three or more turns impossible.

Doug -

As John S has indicated, it is possible to detect the start and end of a
move from the signal generated by the DivisionMaster controller; however,
there is no way to coordinate the moves between the mill & the controller
from that point, unless you are able to drive the controller as a "slave"
unit (i.e., generate a 4th axis step-and-direction signal from your CNC
control and use the controller as a true 4th axis).


Regards,
Tony Jeffree
DivisionMaster Ltd.
http://www.divisionmaster.com