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Hardware & Machines
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Turning
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Manual tapers
Manual tapers
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13 Jan 2021 08:54 #195196
by anfänger
I will have two mpg for x and z axis, so i can use the lathe in „manual mode“ when I want to do simple operations.
I wonder if there is an easy way to give the z axis an angle for cutting a taper manually?
Thanks Patrick
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13 Jan 2021 09:37 - 13 Jan 2021 09:39 #195200
by anfänger
Thanks I‘ll have a deeper look at them, cause they look very useful maybe moving them to qtpyvcp cause I am using this at my mill and I am kind of used to it
I was thinking about moving the the X and Z together at an angle and was wandering if it can be done in hal.
Last edit: 13 Jan 2021 09:39 by
anfänger.
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13 Jan 2021 10:13 - 13 Jan 2021 10:27 #195201
by andypugh
anfänger wrote: I was thinking about moving the the X and Z together at an angle and was wandering if it can be done in hal.
Yes, quite easily.
Potentially using a HAL sum2 component:
linuxcnc.org/docs/2.8/html/man/man9/sum2.9.html
You could sum Z and X before passing to the motor, with gain1 set to zero normally, but set to a value (halcmd prompt) as needed.
But, really, you might as well use CNC.
Here is an example of my macros in use (including a taper):
Last edit: 13 Jan 2021 10:27 by
andypugh.
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13 Jan 2021 10:13 #195202
by rodw
anfänger wrote:
I was thinking about moving the the X and Z together at an angle and was wandering if it can be done in hal.
You could use external offsets to achieve this
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13 Jan 2021 10:24 #195203
by andypugh
rodw wrote: You could use external offsets to achieve this
Probably better, as that will better comply to joint limits.
But I still don't think it is a sensible idea
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13 Jan 2021 10:44 #195204
by anfänger
You are probably right
but external offset by angle sounds interesting.
I thin I will start wit the macros and if i need to waste more time I will dive into my braindead ideas.
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13 Jan 2021 10:49 #195205
by andypugh
anfänger wrote: I thin I will start wit the macros and if i need to waste more time I will dive into my braindead ideas.
If you are running LinuxCNC 2.8 / 2.8.1 then there is a sample config in sim/gmoccapy/lathe-configs/lathe macros with the macros all set up and ready to play with.
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13 Jan 2021 10:59 #195206
by anfänger
Good to know the I will start with gmocappy, though I prefer the look of qtpyvcp.
I hope I‘ll get the missing parts, so I can start assembling the control for my lathe.
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13 Jan 2021 11:52 #195207
by rodw
andypugh wrote:
rodw wrote: You could use external offsets to achieve this
Probably better, as that will better comply to joint limits.
But I still don't think it is a sensible idea
You are probably right
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