Just happened to me too...

I haven't tried ref points but on a 4th axis this could be very beneficial, if it isn't too much of a hassle to set it up... I have it outputting a G91 G28 Z0, Then index and G43 again. This way I don't rotate with the tools too close to the part.

I recently started using the MPmaster post with 4th axis on a vertical, and it will put out A's when I have a rotation and no A's if there isn't rotation... I really like the post so far ! Way better than the old one.

This method works for me. Most machines won't turn on if the lead in is an arc while turning comp on. start angle = 90 entry/exit arc sweep = 90 start at center = checked perpendicular entry = checked

http://www.emastercam.com/board/topic/78275-mpmaster-extra-tool-change-in-contour/

http://www.emastercam.com/board/topic/78275-mpmaster-extra-tool-change-in-contour/ GOT IT...

I have seen this before, yes. Seperate program in the indexer control box... Then just sub call to it to read the next line of rotation.

That did it !! Many Thanks... Now will this be an issue if/when we start using Renishaw probes on the machine ???

Gotcha ! My interpretation was "type out". My bad. Still trying to learn post lingo... I'll try it. Thank you.

I have the Productivity Plus revision in the MPmaster that I am using, and the "force_tlchg" line is exactly like you have recommended, but I am still having this issue... We are not using probes here. Any other possibilities ?? thanks

I am having the same issue in X8. Have you found a solution to this ?? thanks

I was just about to do that. -Down load the MPmaster from here and try it as is.

I switched back to the "old" post and it worked as well, BUT the 4th axis rotations were not... I also like some of the bells and whistles in the MP post... I am thinking I screwed something up in the post when tweeking it.

THANK YOU ! Very much appreciated.

Thanks JParis ! This ? TEST.Z2G

Same tool, two toolpath operations...rough pkt and then finish pkt (-.090 deep) When using force tool change I am getting tool changes at every Z level on the 2nd toolpath. So far I am getting it to post what I want except this. Recently up graded to X8 and dumped the very old post. It was recommended that I start with the MPmaster post and do my own tweeks... I may have over / under tweeked it... Has any one seen this before ? Any help is much appreciated. I have attached the X8 file but couldn't attach the post. ??? Posted code is FTC off and then on. Thanks ! FORCE TOOL CHANGE OFF ON SECOND TOOL % O2222 (TEST) (MCX FILE - C:\TEMP\TEST.MCX-8) (PROGRAM - TEST.NC) (DATE - APR-13-2015) (TIME - 2:13 PM) G0 G17 G20 G40 G80 G90 G91 G28 Z0. (ROUGH JAW PKT) N1 T1 ( .125 EM / .5 LOC / .250 SHANK) M06 (COMPENSATION TYPE - WEAR COMP) (Z STOCK TO LEAVE = .005) (XY STOCK TO LEAVE = .005) G0 G17 G90 G54 X.4038 Y0. S7000 M03 G43 H1 Z2. M08 Z.1 G94 G1 Z-.0283 F50. G41 D1 X.41 F15. G3 X.3525 Y.0575 I-.0575 J0. G1 X-.3525 G3 Y-.0575 I0. J-.0575 G1 X.3525 G3 X.41 Y0. I0. J.0575 G1 G40 X.4038 Z-.0567 F50. G41 D1 X.41 F15. G3 X.3525 Y.0575 I-.0575 J0. G1 X-.3525 G3 Y-.0575 I0. J-.0575 G1 X.3525 G3 X.41 Y0. I0. J.0575 G1 G40 X.4038 Z-.085 F50. G41 D1 X.41 F15. G3 X.3525 Y.0575 I-.0575 J0. G1 X-.3525 G3 Y-.0575 I0. J-.0575 G1 X.3525 G3 X.41 Y0. I0. J.0575 G1 G40 X.4038 G0 Z2. (FINISH PKT) (Z STOCK TO LEAVE = 0.) (XY STOCK TO LEAVE = 0.) X.4088 Z.1 G1 Z-.03 F50. G41 D1 X.415 F15. G3 X.3525 Y.0625 I-.0625 J0. G1 X-.3525 G3 Y-.0625 I0. J-.0625 G1 X.3525 G3 X.415 Y0. I0. J.0625 G1 G40 X.4088 Z-.06 F50. G41 D1 X.415 F15. G3 X.3525 Y.0625 I-.0625 J0. G1 X-.3525 G3 Y-.0625 I0. J-.0625 G1 X.3525 G3 X.415 Y0. I0. J.0625 G1 G40 X.4088 Z-.09 F50. G41 D1 X.415 F15. G3 X.3525 Y.0625 I-.0625 J0. G1 X-.3525 G3 Y-.0625 I0. J-.0625 G1 X.3525 G3 X.415 Y0. I0. J.0625 G1 G40 X.4088 G0 Z2. M09 M05 G91 G28 Z0 M19 G28 Y0. G90 M30 % FORCE TOOL CHANGE ON 2ND TOOL RESULT IS MULTIPLE TOOL CHANGES FOR EACH Z LEVEL % O2222 (TEST) (MCX FILE - C:\TEMP\TEST.MCX-8) (PROGRAM - TEST.NC) (DATE - APR-13-2015) (TIME - 2:11 PM) G0 G17 G20 G40 G80 G90 G91 G28 Z0. (ROUGH JAW PKT) N1 T1 ( .125 EM / .5 LOC / .250 SHANK) M06 (COMPENSATION TYPE - WEAR COMP) (Z STOCK TO LEAVE = .005) (XY STOCK TO LEAVE = .005) G0 G17 G90 G54 X.4038 Y0. S7000 M03 G43 H1 Z2. M08 Z.1 G94 G1 Z-.0283 F50. G41 D1 X.41 F15. G3 X.3525 Y.0575 I-.0575 J0. G1 X-.3525 G3 Y-.0575 I0. J-.0575 G1 X.3525 G3 X.41 Y0. I0. J.0575 G1 G40 X.4038 Z-.0567 F50. G41 D1 X.41 F15. G3 X.3525 Y.0575 I-.0575 J0. G1 X-.3525 G3 Y-.0575 I0. J-.0575 G1 X.3525 G3 X.41 Y0. I0. J.0575 G1 G40 X.4038 Z-.085 F50. G41 D1 X.41 F15. G3 X.3525 Y.0575 I-.0575 J0. G1 X-.3525 G3 Y-.0575 I0. J-.0575 G1 X.3525 G3 X.41 Y0. I0. J.0575 G1 G40 X.4038 G0 Z2. M05 G91 G28 Z0 M19 M09 M01 N2 T1 ( .125 EM / .5 LOC / .250 SHANK) M06 (FINISH PKT) (COMPENSATION TYPE - WEAR COMP) (Z STOCK TO LEAVE = 0.) (XY STOCK TO LEAVE = 0.) G0 G90 G54 X.4088 Y0. S7000 M03 G43 H1 Z2. M08 T1 Z.1 G1 Z-.03 F50. G41 D1 X.415 F15. G3 X.3525 Y.0625 I-.0625 J0. G1 X-.3525 G3 Y-.0625 I0. J-.0625 G1 X.3525 G3 X.415 Y0. I0. J.0625 G1 G40 X.4088 M05 G91 G0 G28 Z0 M19 M09 M01 N3 T1 ( .125 EM / .5 LOC / .250 SHANK) M06 (COMPENSATION TYPE - WEAR COMP) (Z STOCK TO LEAVE = 0.) (XY STOCK TO LEAVE = 0.) G1 G90 G54 X.4088 Y0. S7000 M03 F50. G43 H1 Z-.06 M08 T1 G41 D1 X.415 F15. G3 X.3525 Y.0625 I-.0625 J0. G1 X-.3525 G3 Y-.0625 I0. J-.0625 G1 X.3525 G3 X.415 Y0. I0. J.0625 G1 G40 X.4088 M05 G91 G0 G28 Z0 M19 M09 M01 N4 T1 ( .125 EM / .5 LOC / .250 SHANK) M06 (COMPENSATION TYPE - WEAR COMP) (Z STOCK TO LEAVE = 0.) (XY STOCK TO LEAVE = 0.) G1 G90 G54 X.4088 Y0. S7000 M03 F50. G43 H1 Z-.09 M08 T1 G41 D1 X.415 F15. G3 X.3525 Y.0625 I-.0625 J0. G1 X-.3525 G3 Y-.0625 I0. J-.0625 G1 X.3525 G3 X.415 Y0. I0. J.0625 G1 G40 X.4088 G0 Z2. M09 M05 G91 G28 Z0 M19 G28 Y0. G90 M30 % TEST.mcx-8

Did this get resolved ? I have the same situation and would also like to have A90 and A-90 instead of A270... MPmaster Post X8 thanks for any help ! EDIT: If I put in an A0 operation IN BETWEEN the A90 and A-90 operations I will get what I want... At this point not sure if the 4th axis will swing down into the table when going from 90 to -90(270)

How do you accomplish this ? Use stock plane in the stock set up ? thanks, tim