Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: whizzo on March 08, 2009, 11:16:28 AM
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Dear All,
Don't know if this is the correct place to post this, but here goes anyway. As I understand it, Mach 3 has a plug-in or driver, I don't know which, to interface to a Galil motion control board or boards. The questions are these:- Is the communication protocol between Mach 3 and the Galil board open to be looked at and studied? I assume that the Galil boards are PCI based? The reason for these questions is that I think Galil products are very expensive and I have seen a PCI motion control board for a fraction of the cost of a Galil, but it will obviously need a new driver or plug-in writing to communicate with Mach 3. I don't know if I'm clever enough to do this either. Any comments and advice gratefully received.
Dave.
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Ask "Smurf" he is fooling with the Galil now..........
scott
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hello all,
I am going to use the galil plugin and a dmc-2180 controller on a plasma cutter and would like to know if you can use a thc with this plugin.
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Does anyone have an ICD on MACH 3. What is the output thats drives servo amps. In the case of a Galil board I guess its software to the Galil that is converted to Galil language for Galil to turn into a servo amp drive voltage.
anyway a nice ICD would explain all. Does one exists.
Jim P (Petsatcom)
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What about the Galil Manual? Its on the Galil site.
This is the controller for command and feedback.
Nosmo.
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Is the communication protocol between Mach 3 and the Galil board open to be looked at and studied? I assume that the Galil boards are PCI based? The reason for these questions is that I think Galil products are very expensive and I have seen a PCI motion control board for a fraction of the cost of a Galil, but it will obviously need a new driver or plug-in writing to communicate with Mach 3.
The Galil card, unlike the less expensive motion control cards you mention, has its own trajectory planner.
From what I recall from previous discussions, Mach sends velocity and position data to the board. The Galil uses internal functions (possibly LM and VS) to convert this into a trajectory. These features are missing from lower cost cards which, as a result, would require a completely different approach to writing a driver. It is definitely not trivial.
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..........And also the PID loop is handled within the card, allowing the use of non-intelligent drives to be used.
Nosmo.
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We are working on THC for the Galil, but as with all the other changes, it is going to take a while before it is ready. Lathe threading is also in the works.
Kenny