Hand turning lathe spindle and threadingt
21 Mar 2013 21:34 #31678
by keys_46
Hand turning lathe spindle and threadingt was created by keys_46
Hi All,
I recently viewed a YouTube video showing a lathe spindle being turned by hand while threading. This showed me that it is possible to thread without steady spindle speed. Is this possible in linuxcnc? How?
I recently viewed a YouTube video showing a lathe spindle being turned by hand while threading. This showed me that it is possible to thread without steady spindle speed. Is this possible in linuxcnc? How?
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21 Mar 2013 22:14 #31682
by cradek
Replied by cradek on topic Hand turning lathe spindle and threadingt
LinuxCNC uses realtime feedback from an encoder on the spindle to do this.
No lathe has a perfectly steady spindle speed, especially when entering and exiting cuts repeatedly like during threading.
No lathe has a perfectly steady spindle speed, especially when entering and exiting cuts repeatedly like during threading.
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21 Mar 2013 22:35 #31683
by skunkworks
Replied by skunkworks on topic Hand turning lathe spindle and threadingt
This is linuxcnc doing the same thing...
You do need an encoder on the spindle with a decent number of counts. (3 channel A, B and Z)
You do need an encoder on the spindle with a decent number of counts. (3 channel A, B and Z)
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