EMC2 5 axis cinci at MPM
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Uploader Comments (sws1253)
All Comments (14)
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So on EMC can you dial in the ammount of ball screw backlash you have and it will correct on the fly in + and -?
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While it may not be the fastest, that thing is likely the most rigid 5-axis CNC machine in existence. And when it comes to machine tools, I'll take rigidity over speed, ANY day. My instructor always used to say, "RIGIDITY, RIGIDITY, RIGIDITY." Great job on the retrofit. Now to see that thing making chips!
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Holy smokes that is a MONSTER!!! What are the travels on that thing? That is officially the biggest beast I have ever seen retro'd to EMC.... Nice work man!!! peace
Pete
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Impressive beast.
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Yes I agree if it is accurate and it gives a good finish with the more usable control then that is a great result..
Plus the original servos may be better suited to the heavy machine than modern AC motors.
Can't wait to see it cutting!
John.
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I have not changed anything other than the control. I am working on changing the servo amps. The SCR amps work but they are limited in the tuning of them. I am not trying to make it a FAST machine. I would like to have it tuned a little better. The EMC2 tuning is superimposed on the tuning accel/decel of the SCR amps. Weight is the limiting factor on the machine.
Stuart
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wow looks like precise backlash compensation calculations for a precise setup is like a day of setups and testing, how do you rate EMC2 against MACH3, i'm running on mach3 but i hear that emc2 have some setup better than mach3 and is excellent for bevel head control for 5-axis cnc plasma, that is true!?
vambreace 6 months ago
@vambreace I don't know anything about MACH3 so I cannot comment.
sws1253 6 months ago
EMC2 has both backlash compensation and bi-directional lead screw compensation. You can use either. The bi-directional compensation needs an error map of the slide motion. I corrected the Cinci every inch. The compensation interpolates the correction amount between each correction point.
sws1253 11 months ago
the travels are X 122" Y 42" Z 14"
it is full simultaneous 5 axis motion - EMC2 is capable of 9 axis motion - this version of EMC2 will drill using the W axis - at whatever angle A and B are the W axis is the centerline of the spindle and it will drill at that angle with just a W command
it is also fully geometrically compensated for all motion XYZAB - not just ball screw error but orthogonal error and pivot point error
sws1253 1 year ago