Rotary countouring problem

[micr0]

Hi guys,

I’m trying my hand at rotary contouring (up till now have just used the rotary for indexing) I have a simple file that seems to work (verify and back plot)till I try to post. First I get the warning: “Warning-Post Rotary Axis Assignment (‘rot_on_x’) Overwritten by Post”. If I click through it seems to generate the proper code until I get to the second depth cut and then it includes seemingly random federate changes every other line. Some of these federates are triple digit rates (560ipm?!). I have checked the C and T planed and both X and Y are in the positive direction. Is this a Post problem or is my set up wrong somehow? I've attached the file if that helps.

 

thanks

 

P-

 

 

Posted code sample:

 

N1180 X-.2068 U-13.825 F42.

N1190 X-.1643 U-13.828

N1200 X-.1227 U-13.832

N1210 X-.0817 U-13.835

N1220 X-.0413 U-13.839

N1230 X-.0208 U-13.841

N1240 X-.0003 U-13.842

N1250 X.0398 U-13.846 F4.05

N1260 X.08 U-13.849

N1270 X.119 U-13.852

N1280 X.1599 U-13.867 F15.39

N1290 X.1987 U-13.881

N1300 X.2374 U-13.895

N1310 X.2807 U-13.931 F535.08

N1320 X.3206 U-13.964

N1330 X.3606 U-13.999

N1340 X.4072 U-14.07 F64.

N1350 X.4393 U-14.119

N1360 X.4714 U-14.166

N1370 X.5213 U-14.301 F113.1

N1380 X.5727 U-14.439

N1390 X.6097 U-14.539

N1400 X.6467 U-14.639

N1410 X.7016 U-14.855 F164.13

N1420 X.7583 U-15.154 F219.04

N1430 X.7999 U-15.373

N1440 X.8414 U-15.59

N1450 X.8836 U-15.887 F290.29

N1460 X.9257 U-16.185

N1470 X.9841 U-16.71 F367.08

 

ROTARY SPACER TEST.zip

[Guest]

Generic 4 axis VMC posts with no issues

 

On the feed rate, this is like where you'll have to change the settings depending on what your control needs

 

[micr0]

Generic 4 axis VMC posts with no issues

 

Thanks John

 

I just made that change and it is still giving me the warning and the increasing feedrates. Is there something in the post I should be looking at?

 

FWIW this ia a post for and Anilam control that has been updated version to version since v9

[Guest]

So does this mean that it is a post or machine definition problem? The post (it's for an Anilam 1400)has been updated all the way from V9 from what I'm told.

 

My guess would be the post.

 

The control def will have little influence over a post that old.

 

Check the rotary axis settings in the post, it may be set with the direction set wrong.

[micr0]

My guess would be the post.

 

The control def will have little influence over a post that old.

 

Check the rotary axis settings in the post, it may be set with the direction set wrong.

 

John,

 

Your replies are faster than my edits.

 

here is the rotary set up section from the post, I don't see anything wrong:

 

 

 

--------------------------------------------------------------------------

Rotary Axis Settings

--------------------------------------------------------------------------

vmc : 1 #0 = Horizontal Machine, 1 = Vertical Mill

rot_on_x : 1 #Default Rotary Axis Orientation, See ques. 164.

#0 = Off, 1 = About X, 2 = About Y, 3 = About Z

rot_ccw_pos : 0 #Axis signed dir, 0 = CW positive, 1 = CCW positive

index : 0 #Use index positioning, 0 = Full Rotary, 1 = Index only

ctable : 5 #Degrees for each index step with indexing spindle

use_frinv : 0 #Use Inverse Time Feedrates in 4 Axis, (0 = no, 1 = yes)

maxfrdeg : 2000 #Limit for feed in deg/min

maxfrinv : 999.99#Limit for feed inverse time

frc_cinit : 1 #Force C axis reset at toolchange

ctol : 225 #Tolerance in deg. before rev flag changes

ixtol : 0.01 #Tolerance in deg. for index error

frdegstp : 10 #Step limit for rotary feed in deg/min

maxfeedpm : 500 #Limit for feed in unit/min

 

 

 

p-

[Guest]

I agree, that section looks good.

 

Just can't tell if there is something within the logic that's messed up though

[micr0]

I agree, that section looks good.

 

Just can't tell if there is something within the logic that's messed up though

 

One line that caught may attention though I don't know what it should look like is:

 

#Numbered question 164. string to detect Rotary axis y/n

sq164 : ""

 

Should there be something in the ""?

[RandleXX]

Is your inverse time feedrate checked in your control def??

If not, Check to see if is on in the post switches. (inside the .pst file)

 

use_frinv : 0 #Use Inverse Time Feedrates in 4 Axis, (0 = no, 1 = yes)