Sven
Not sure about what was posted as the link is rather "generic". Mach3 uses an
index sensor (slotted disc and opto) to get angular orientation and speed.
Could not work with just a VFD as you need to know the angle to start each
pass. But threads are pretty good with the simple opto gate or even reflective
sensor.
John Prentice
Guys,
Out of curiosity, can an EMC lathe make threads without spindle feedback?
On cnczone.com a guy posted pictures on a thread made with Mach without
spindle feedback, only a VFD as speed controller. They looked truly good.
I know there are problems with it (torque figures, exact positioning, RPM
loss etc), but is it possible with EMC?
Regards,
Sven
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