Manual tapers
13 Jan 2021 08:54 #195196
by anfänger
Manual tapers was created 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
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 09:11 #195197
by andypugh
Replied by andypugh on topic Manual tapers
For simple operations I use: forum.linuxcnc.org/41-guis/26550-lathe-macros
The ability to cut tapers is built-in to the turning, facing and boring tabs.
The ability to cut tapers is built-in to the turning, facing and boring tabs.
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13 Jan 2021 09:37 - 13 Jan 2021 09:39 #195200
by anfänger
Replied by anfänger on topic Manual tapers
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.
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
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):
Replied by andypugh on topic Manual tapers
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
You could use external offsets to achieve this
Replied by rodw on topic Manual tapers
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
Probably better, as that will better comply to joint limits.
But I still don't think it is a sensible idea
Replied by andypugh on topic Manual tapers
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
Replied by anfänger on topic Manual tapers
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.
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
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.
Replied by andypugh on topic Manual tapers
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
Replied by anfänger on topic Manual tapers
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.
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
You are probably right
Replied by rodw on topic Manual tapers
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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