Problem with homing ATC step motor

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7 years 1 week ago #148728 by CNCDoc
Now it work!
Thanks!

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7 years 1 week ago #148731 by andypugh
Thanks for helping debug this, the changes are now in 2.8 and master.

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7 years 6 days ago #148776 by CNCDoc
I have a locking pin on my carousel. Which is normally in the locked position. What do you think is the best solution for getting the locking pin to work with the jog function?
1: Change the function so that the lock pin is normally in the open position and change in the G code sequence for the tool change.
2: Do a G code sequence that opens the locking pin and looks at the inductive sensors stauses and then sends signal to the carousel to start. When the jog button is activated. (Would be nice to be able to hold the jog button to be able to jog multiple tool holders at once)
3: Other solution.

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7 years 6 days ago #148784 by andypugh
I think that you can operate the locking pin using an inverted version of the "active" pin. Either invert it in HAL with a "not" and pass it to the output pin that controls the lock, or simply pass it unmodified and invert the sense of the output pin.

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4 years 4 months ago #245682 by COFHAL
I am trying to make my ATC for a lathe, from what I have read it can be controlled in three ways: by G code, using the Carousel function and by CL, but the truth is that I have not found any technical information regarding how to implement it, especially how to implement the sensors to control the position of each tool. I have not found any electronic diagram, only information on the modification of existing ATC. How could you help me about it? I am using version 2.9, is the Carousel function available for this version?

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4 years 4 months ago #245688 by andypugh
How do you _want_ to implement the sensors?

If you can, I would suggest a gray-code + strobe setup. ie 4 sensors for an 8 station turret, 5 for a 16 etc.

For a lathe it should be possible to configure carousel entirely in HAL

Code:
net tool-num iocontrol.0.tool-prep-pocket => carousel.0.pocket-number net tool-change iocontrol.0.tool-change => carousel.0.enable net tool-confirm carousel.0.ready => iocontrol.0.tool-changed net prep-loop iocontrol.0.tool-prepare => iocontrol.0.tool-prepared


Carousel is in LinuxCNC 2.7 and onwards.

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4 years 4 months ago #245691 by COFHAL
Thanks for your support, I really don't know how to implement it physically, the changer I'm designing has 6 tools, do you have any photos or diagrams of how to make it? In addition, I have not found any complete example of the configuration of an ATC for a lathe, most are for 3-axis machines, do you have any configuration that you can help me with?

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4 years 4 months ago #245693 by andypugh
What parts don't you understand? Are you looking for a complete mechanical design, or just help with the position feedback aspects?

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4 years 4 months ago #245694 by COFHAL
Only position Feedback,The mechanical part is already working

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4 years 4 months ago #245715 by andypugh
I would probably use proximity sensors and drilled holes as targets.
Do you have any pics of the design or a 3D model to share?

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