Rotational soft limits is the only one that is checked.

I continually get a slight delay between each line of code which causes major problems with our laser application.  Any help is appreciated.
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g90 g64
g01 a-25. z0. f850.
g01 a-50. z.1 f850.
g01 a-75. z.15 f850.
g01 a-100. z.2 f850.
m30
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I do not KNOW, but I suspect that the f850 may be causing the delay. Change your program to the following and see whether it gets any better. let us know.
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g90 g64
f850
g01 a-25. z0.
g01 a-50. z.1
g01 a-75. z.15
g01 a-100. z.2
m30
%

Cheers
Roger

I tried moving the feed rate to a different line ahead of the code, and I increased the acceleration as high as I could get it before the steppers would skip steps.  This reduced the hesitation, but not completely.  To me, if the motion is to be linear, it shouldn't matter if there are a number of lines code to get from point A to point B, with look ahead, the motion should be absolutely smooth.  I can't figure out why there are these little hesitations.

How far is your look ahead?

Btw what computer? specs? OS? Have you ever had success with this combo of computer and machine? Have you followed the Mach optimization steps? Just checking everything.

OK 1st question do you have your A axis setup as linear or angular(polar)?


Go to "Config" then "toolpath". Top right side there is a section that says rotations, what is checked.

You should have checked

Use radius for feedrate

A- rotations enabled

Axis of rotation.

NEXT go to the setting page, top right there is a section that allows you to set the radius of the part you are working with in A axis. SET the radius value.

NOW try your code again.

IF the A is not linked to a linear axis it may not have a look ahead function NOR will the feedrates be synced as a unit. Also the radius setting allow mach3 to define the blended feedrate correctly.

ALSO after you have changed everything Shut down mach3 and restart.

Just a thought, (;-) TP