Acceleration around corners
23 Nov 2010 11:59 #5554
by beermkr
Acceleration around corners was created by beermkr
Okay, we cut a sign last night and noticed something strange. It seems that the machine is compensating for velocity and cutting the corners off. Is there a way to make it slow down to the corner, make the turn and then speed back up?
I know Mach3 has a CV setting or something like that so does EMC have the same type thing somewhere?
R/
I know Mach3 has a CV setting or something like that so does EMC have the same type thing somewhere?
R/
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23 Nov 2010 14:52 #5557
by BigJohnT
Replied by BigJohnT on topic Re:Acceleration around corners
Here is a short read on important things like that.
www.linuxcnc.org/docview/html//common_User_Concepts.html
John
www.linuxcnc.org/docview/html//common_User_Concepts.html
John
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23 Nov 2010 15:10 #5560
by beermkr
Replied by beermkr on topic Re:Acceleration around corners
Thanks!
So the G64 at the beginning of the gcode is my problem? I should change this to a g61 in order for the path to be followed correctly?
R/
So the G64 at the beginning of the gcode is my problem? I should change this to a g61 in order for the path to be followed correctly?
R/
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23 Nov 2010 15:38 #5563
by andypugh
Replied by andypugh on topic Re:Acceleration around corners
G61 will stop at corners, that might cause problems with rubbing/burning (though this is unlikely). G64 P0.01 or similar should give you the best of both worlds. Change the numeric parameter to suit.
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23 Nov 2010 16:41 #5568
by beermkr
Replied by beermkr on topic Re:Acceleration around corners
Okay I get it now. Thanks for the help!
R/
R/
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