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Rigid Tapping Help
I'm using Fusion to make drill/tap operation. In fusion, it simulates fine but when I run it on the mill it goes through the to drill operations and then gets to tapping, moves Z and then stalls at line N455 and doesn't actually tap...spindle is rotating but Z isn't moving.
This is the tapping portion of the code:
Can anyone give me any input on what may be wrong here? I've looked at a couple other examples and everything seems right. The machine was set up and used by the PO for rigid tapping (encoder, etc.) so I don't believe it's a hardware issue. I'm leaning toward something in the post, but I'm still very green with gcode and I'm just not seeing it.
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A & B appear to be reading.
Poke around some more tonight - verified that wiring was clean and not damaged.
I'm kind of leaning toward one of two theories:
1) The index portion of the encoder is bad.....this doesn't seem very likely.
2) The previous owner gave me the wrong config file. Shortly after buying it, I replaced the PC he gave me with a smaller unit and and did a fresh install on a new SSD. He walked me through loading the backed up config files he gave me when I bought it. It's possible that the backup he gave me didn't have the encoder properly configured.
For #1 - Is there a way to test the encoder to verify it's actually working?
For #2 - how to do I go about figuring out configured properly....or at all?
This is with Mesa 5i25, 7i77 and a Automation Direct TRDA-2E1000VD encoder if that helps.
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hal:
ini:
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Any pointers?
The previous owner did this conversion with the original steppers and then later converted to servos. He's fairly confident that he had used rigid tapping after the servo conversion (meaning the config should be correct), but I don't think he was 100% sure.
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How low of an rpm can you go with your vfd?
Seems the encoder is not registering the index signal....but is registering rotation/rpm. More trouble shooting tomorrow!
Can you currently turn on the spindle in a cw and ccw direction?
Can you confirm that in halmeter if you load the encoder.05 it's counting + and -?
Can you turn the spindle manually very slowly and see if the encoder.05 index led blips brown/yellow one per revolution? If you can't turn it slowly you'll need to use halscope to trigger it.
Your ini's name suggests this is on a Boss5 BP type of machine? Can tell us where the encoder is fitted on your machine? Is the vari-disc "gear box" in place and being used? If so, is your spindle at speed correct?
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Correct, it's a rigid ram Boss 5. Encoder is mounted on top of the spindle pulley. The machine has been retrofitted with pulley drives, the varispeed is long gone. Speed appears to be correct, though i haven't checked it with a tach yet. I ha no reason to believe it's off.OT-CNC wrote: I glanced over the ini and hal and didn't see anything obviously wrong but maybe one of the experts could confirm.
How low of an rpm can you go with your vfd?
It doesn't seem to like anything below 100rpm, but does fine on the next click up around 120rpm.
Seems the encoder is not registering the index signal....but is registering rotation/rpm. More trouble shooting tomorrow!
Can you currently turn on the spindle in a cw and ccw direction?
Yes, spindle functions perfectly in both directions.
Can you confirm that in halmeter if you load the encoder.05 it's counting + and -?
Yes, encoder counts both directions
Can you turn the spindle manually very slowly and see if the encoder.05 index led blips brown/yellow one per revolution? If you can't turn it slowly you'll need to use halscope to trigger it.
No change/response shown on any of the index variables.
Your ini's name suggests this is on a Boss5 BP type of machine? Can tell us where the encoder is fitted on your machine? Is the vari-disc "gear box" in place and being used? If so, is your spindle at speed correct?
^^
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