PathPilot controlled lathe toolchanger

The 7I76 has lots of I/O
That does seem like a more direct route

That is, you are not working under the same constraints that Tormach
was when they designed their Tool changer interface
(Mach and only one output pin available on parallel port to select tool changer position)

Mike , sent you a pm , their are other ways to do this , but depends on if your using a tormach bit file
i can easily add a toolchanger into pathpilot easier probably than your trying to do ..

Sarah

Thanks CNCBASHER the bit file works fantastic the pwm signal is rock solid have done some testing and all is great. Glad I could help with the setup of PathPilot have put a picture of the toolchanger mounted on George's myford lathe.

Thanks

Micknucam

micknucam wrote:

Hello
I have developed an 8 position toolchanger for my lathe I am using a 5i25 and 7i76. The bit files that come with the 5i25 are set up to produce 5 step and direction channels. I have used a pic micro to decode the pwm signals produced by PathPilot but had to implement a software pwm gen. Is it possible to change one of the step and direction channels to a hardware pwm. Has anyone already done this or could explain how this is done or should I contact Mesa ???

Micknucam may I ask what PIC you used in your tool changer. I was able to get a Emco PC Turn 50 tool turret and will convert it for use on the NovaTurn. Your method seems to be straight forward. Can you share your code?


Thanks,

Iron-Man

Iron-Man wrote: Micknucam may I ask what PIC you used in your tool changer. I was able to get a Emco PC Turn 50 tool turret and will convert it for use on the NovaTurn. Your method seems to be straight forward. Can you share your code?

There is already a HAL component for the Emco tool turret. No need for a PIC or any silly messing about with PWM.

wiki.linuxcnc.org/cgi-bin/wiki.pl?Contri...oolchanger_component

andypugh wrote:

Iron-Man wrote: Micknucam may I ask what PIC you used in your tool changer. I was able to get a Emco PC Turn 50 tool turret and will convert it for use on the NovaTurn. Your method seems to be straight forward. Can you share your code?

There is already a HAL component for the Emco tool turret. No need for a PIC or any silly messing about with PWM.

wiki.linuxcnc.org/cgi-bin/wiki.pl?Contri...oolchanger_component

So I should be able to modify the code to interface with pathpilot?

Thanks Andy,

Iron-Man