Spindle speed variation on lathe
27 Jan 2021 15:15 - 27 Jan 2021 15:17 #196771
by Catch22
Spindle speed variation on lathe was created by Catch22
Does anyone have any idea how to write a macro, or program a lathe to run a program using spindle speed variation to help stop chatter.
We have a Haas SL20 at work and it has this feature on it and it works great. I would like to be able to use it on my lathe at home using Linuxcnc.
Thanks Mike
We have a Haas SL20 at work and it has this feature on it and it works great. I would like to be able to use it on my lathe at home using Linuxcnc.
Thanks Mike
Last edit: 27 Jan 2021 15:17 by Catch22.
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27 Jan 2021 15:25 #196775
by tecno
Replied by tecno on topic Spindle speed variation on lathe
Me too 
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27 Jan 2021 22:15 #196831
by Todd Zuercher
Replied by Todd Zuercher on topic Spindle speed variation on lathe
I know I've read some topics on the forum discussing ways to implement it. I would think it could be as simple as adding or multiplying a siggen value to the halsignal sent to the spindle. But as always the devil's in the details.
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27 Jan 2021 23:50 #196854
by andypugh
Replied by andypugh on topic Spindle speed variation on lathe
I keep meaning to do this, every time I find myself wiggling the spindle override knob to kill chatter.
Then I always forget.
But, yes, adding the output of a siggen to the spindle speed command is the way. Probably Triangle rather than Sine.
Then I always forget.
But, yes, adding the output of a siggen to the spindle speed command is the way. Probably Triangle rather than Sine.
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27 Jan 2021 23:57 #196856
by cmorley
Replied by cmorley on topic Spindle speed variation on lathe
I actually coded something like this for linuxcnc many years ago.
it was based on HAAS video I saw.
There may be a patch file on the mailist archive.
IIRC it was HAL based - I was asking about how to use gcode commands to activate it.
it was based on HAAS video I saw.
There may be a patch file on the mailist archive.
IIRC it was HAL based - I was asking about how to use gcode commands to activate it.
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