Problem- Z tool offset not always reccognized

[Concealed45]

Is anyone framiliar with this problem in EMC2 ? If I run a program from startup, set my tools and run it works great. But if I try to run another program, or have to change tools without shutting down and restarting it seems to make up its own numbers and will tell me that a Z move will be past the limits when I know it is not. I am looking for a fix to this last night I was running a prog and had to change a tool offset midrun, reloaded the offset table, and it wouldnt run, had to shut down and rehome everything which lost my part location and it was a real pain to find it again.

TIA

[chester88]

are you using G92 in your program?
Actually if you post your program somewhere it would be helpful.
I have not heard of this problem before.
Also what version of EMC are you using?

[Concealed45]

It is version 2.3 I believe, will have to go look to be sure. I am using a G92 and posting with MasterCam9 EMC2MPFAN post processor. It does this on any program. I will see If I have a program small enough to copy in here.

[Concealed45]

Here is the shortest I found, I do notice there is not a G92 as I thought there was.


%
(PROGRAM NAME - 3800VACCOVER)
(DATE=DD-MM-YY - 18-10-09 TIME=HH:MM - 13:36)
( 1/4 CENTERDRILL TOOL - 1 DIA. OFF. - 21 LEN. - 1 DIA. - .25)
N100G20
N102G90G40G49G80
N104T1M6
N106G0G90G54X.3988Y.3836S2400M3
N108G43H1Z.1
N110G99G81Z-.1R.1F6.
N112X1.5108Y1.7089
N114X2.4439Y.3827
N116X3.556Y1.708
N118G80
N120M5
N122G0G53Z0.
N124T2M6
( #Q DRILL TOOL - 2 DIA. OFF. - 22 LEN. - 2 DIA. - .332)
N126M00
N128G0G90X.3988Y.3836S240M3
N130G43H2Z.1
N132G99G83Z-.26R.1Q.1F6.
N134X1.5108Y1.7089
N136X2.4439Y.3827
N138X3.556Y1.708
N140G80
N142M5
N144G0G53Z0.
N146T3M6
( 1/4 FLAT ENDMILL TOOL - 3 DIA. OFF. - 0 LEN. - 3 DIA. - .25)
N148M00
N150G0G90X.549Y-.2087S2400M3
N152G43H3Z.25
N154Z.1
N156G1Z-.0433F6.
N158X.4647Y-.1165F10.
N160G3X.3781Y-.0759I-.0923J-.0843
N162G2X-.0406Y.5198I.0208J.4595
N164G1X.1954Y1.2815
N166G2X.5913Y1.7533I.7594J-.2353
N168G1X1.3005Y2.118
N170G2X1.9502Y1.5728I.2104J-.4091
N172G1X1.7142Y.811
N174G2X1.3184Y.3393I-.7594J.2353
N176G1X.6092Y-.0254
N178G2X.3781Y-.0759I-.2104J.4091
N180G3X.2881Y-.1085I-.0056J-.1249
N182G1X.1958Y-.1928
N184G0Z.2067
N186X.549Y-.2087
N188Z.1
N190G1Z-.0867F6.
N192X.4647Y-.1165F10.
N194G3X.3781Y-.0759I-.0923J-.0843
N196G2X-.0406Y.5198I.0208J.4595
N198G1X.1954Y1.2815
N200G2X.5913Y1.7533I.7594J-.2353
N202G1X1.3005Y2.118
N204G2X1.9502Y1.5728I.2104J-.4091
N206G1X1.7142Y.811
N208G2X1.3184Y.3393I-.7594J.2353
N210G1X.6092Y-.0254
N212G2X.3781Y-.0759I-.2104J.4091
N214G3X.2881Y-.1085I-.0056J-.1249
N216G1X.1958Y-.1928
N218G0Z.1633
N220X.549Y-.2087
N222Z.1
N224G1Z-.13F6.
N226X.4647Y-.1165F10.
N228G3X.3781Y-.0759I-.0923J-.0843
N230G2X-.0406Y.5198I.0208J.4595
N232G1X.1954Y1.2815
N234G2X.5913Y1.7533I.7594J-.2353
N236G1X1.3005Y2.118
N238G2X1.9502Y1.5728I.2104J-.4091
N240G1X1.7142Y.811
N242G2X1.3184Y.3393I-.7594J.2353
N244G1X.6092Y-.0254
N246G2X.3781Y-.0759I-.2104J.4091
N248G3X.2881Y-.1085I-.0056J-.1249
N250G1X.1958Y-.1928
N252G0Z.12
N254X.549Y-.2087
N256Z.1
N258G1Z-.1733F6.
N260X.4647Y-.1165F10.
N262G3X.3781Y-.0759I-.0923J-.0843
N264G2X-.0406Y.5198I.0208J.4595
N266G1X.1954Y1.2815
N268G2X.5913Y1.7533I.7594J-.2353
N270G1X1.3005Y2.118
N272G2X1.9502Y1.5728I.2104J-.4091
N274G1X1.7142Y.811
N276G2X1.3184Y.3393I-.7594J.2353
N278G1X.6092Y-.0254
N280G2X.3781Y-.0759I-.2104J.4091
N282G3X.2881Y-.1085I-.0056J-.1249
N284G1X.1958Y-.1928
N286G0Z.0767
N288Z.1
N290X.549Y-.2087
N292G1Z-.2167F6.
N294X.4647Y-.1165F10.
N296G3X.3781Y-.0759I-.0923J-.0843
N298G2X-.0406Y.5198I.0208J.4595
N300G1X.1954Y1.2815
N302G2X.5913Y1.7533I.7594J-.2353
N304G1X1.3005Y2.118
N306G2X1.9502Y1.5728I.2104J-.4091
N308G1X1.7142Y.811
N310G2X1.3184Y.3393I-.7594J.2353
N312G1X.6092Y-.0254
N314G2X.3781Y-.0759I-.2104J.4091
N316G3X.2881Y-.1085I-.0056J-.1249
N318G1X.1958Y-.1928
N320G0Z.0333
N322Z.1
N324X.549Y-.2087
N326G1Z-.26F6.
N328X.4647Y-.1165F10.
N330G3X.3781Y-.0759I-.0923J-.0843
N332G2X-.0406Y.5198I.0208J.4595
N334G1X.1954Y1.2815
N336G2X.5913Y1.7533I.7594J-.2353
N338G1X1.3005Y2.118
N340G2X1.9502Y1.5728I.2104J-.4091
N342G1X1.7142Y.811
N344G2X1.3184Y.3393I-.7594J.2353
N346G1X.6092Y-.0254
N348G2X.3781Y-.0759I-.2104J.4091
N350G3X.2881Y-.1085I-.0056J-.1249
N352G1X.1958Y-.1928
N354G0Z-.01
N356Z.1
N358X.5495Y-.1988
N360G1Z-.26F6.
N362X.4652Y-.1065F10.
N364G3X.3785Y-.0659I-.0923J-.0843
N366G2X-.031Y.5168I.0203J.4495
N368G1X.205Y1.2786
N370G2X.5958Y1.7444I.7498J-.2323
N372G1X1.305Y2.1091
N374G2X1.9407Y1.5757I.2058J-.4002
N376G1X1.7047Y.8139
N378G2X1.3138Y.3482I-.7498J.2323
N380G1X.6046Y-.0166
N382G2X.3785Y-.0659I-.2058J.4002
N384G3X.2886Y-.0985I-.0056J-.1249
N386G1X.1963Y-.1828
N388G0Z-.01
N390Z.25
N392X2.5957Y-.2093
N394Z.1
N396G1Z-.0433F6.
N398X2.5111Y-.1172F10.
N400G3X2.4244Y-.0769I-.0921J-.0846
N402G2X2.0045Y.5188I.0196J.4596
N404G1X2.2406Y1.2806
N406G2X2.6364Y1.7523I.7594J-.2353
N408G1X3.3456Y2.117
N410G2X3.9953Y1.5718I.2104J-.4091
N412G1X3.7593Y.8101
N414G2X3.3635Y.3383I-.7594J.2353
N416G1X2.6543Y-.0264
N418G2X2.4244Y-.0769I-.2104J.4091
N420G3X2.3345Y-.1097I-.0053J-.1249
N422G1X2.2424Y-.1943
N424G0Z.2067
N426X2.5957Y-.2093
N428Z.1
N430G1Z-.0867F6.
N432X2.5111Y-.1172F10.
N434G3X2.4244Y-.0769I-.0921J-.0846
N436G2X2.0045Y.5188I.0196J.4596
N438G1X2.2406Y1.2806
N440G2X2.6364Y1.7523I.7594J-.2353
N442G1X3.3456Y2.117
N444G2X3.9953Y1.5718I.2104J-.4091
N446G1X3.7593Y.8101
N448G2X3.3635Y.3383I-.7594J.2353
N450G1X2.6543Y-.0264
N452G2X2.4244Y-.0769I-.2104J.4091
N454G3X2.3345Y-.1097I-.0053J-.1249
N456G1X2.2424Y-.1943
N458G0Z.1633
N460X2.5957Y-.2093
N462Z.1
N464G1Z-.13F6.
N466X2.5111Y-.1172F10.
N468G3X2.4244Y-.0769I-.0921J-.0846
N470G2X2.0045Y.5188I.0196J.4596
N472G1X2.2406Y1.2806
N474G2X2.6364Y1.7523I.7594J-.2353
N476G1X3.3456Y2.117
N478G2X3.9953Y1.5718I.2104J-.4091
N480G1X3.7593Y.8101
N482G2X3.3635Y.3383I-.7594J.2353
N484G1X2.6543Y-.0264
N486G2X2.4244Y-.0769I-.2104J.4091
N488G3X2.3345Y-.1097I-.0053J-.1249
N490G1X2.2424Y-.1943
N492G0Z.12
N494X2.5957Y-.2093
N496Z.1
N498G1Z-.1733F6.
N500X2.5111Y-.1172F10.
N502G3X2.4244Y-.0769I-.0921J-.0846
N504G2X2.0045Y.5188I.0196J.4596
N506G1X2.2406Y1.2806
N508G2X2.6364Y1.7523I.7594J-.2353
N510G1X3.3456Y2.117
N512G2X3.9953Y1.5718I.2104J-.4091
N514G1X3.7593Y.8101
N516G2X3.3635Y.3383I-.7594J.2353
N518G1X2.6543Y-.0264
N520G2X2.4244Y-.0769I-.2104J.4091
N522G3X2.3345Y-.1097I-.0053J-.1249
N524G1X2.2424Y-.1943
N526G0Z.0767
N528Z.1
N530X2.5957Y-.2093
N532G1Z-.2167F6.
N534X2.5111Y-.1172F10.
N536G3X2.4244Y-.0769I-.0921J-.0846
N538G2X2.0045Y.5188I.0196J.4596
N540G1X2.2406Y1.2806
N542G2X2.6364Y1.7523I.7594J-.2353
N544G1X3.3456Y2.117
N546G2X3.9953Y1.5718I.2104J-.4091
N548G1X3.7593Y.8101
N550G2X3.3635Y.3383I-.7594J.2353
N552G1X2.6543Y-.0264
N554G2X2.4244Y-.0769I-.2104J.4091
N556G3X2.3345Y-.1097I-.0053J-.1249
N558G1X2.2424Y-.1943
N560G0Z.0333
N562Z.1
N564X2.5957Y-.2093
N566G1Z-.26F6.
N568X2.5111Y-.1172F10.
N570G3X2.4244Y-.0769I-.0921J-.0846
N572G2X2.0045Y.5188I.0196J.4596
N574G1X2.2406Y1.2806
N576G2X2.6364Y1.7523I.7594J-.2353
N578G1X3.3456Y2.117
N580G2X3.9953Y1.5718I.2104J-.4091
N582G1X3.7593Y.8101
N584G2X3.3635Y.3383I-.7594J.2353
N586G1X2.6543Y-.0264
N588G2X2.4244Y-.0769I-.2104J.4091
N590G3X2.3345Y-.1097I-.0053J-.1249
N592G1X2.2424Y-.1943
N594G0Z-.01
N596Z.1
N598X2.5961Y-.1993
N600G1Z-.26F6.
N602X2.5116Y-.1072F10.
N604G3X2.4248Y-.0669I-.0921J-.0846
N606G2X2.0141Y.5159I.0191J.4496
N608G1X2.2501Y1.2777
N610G2X2.6409Y1.7434I.7498J-.2323
N612G1X3.3502Y2.1081
N614G2X3.9858Y1.5748I.2058J-.4002
N616G1X3.7498Y.813
N618G2X3.3589Y.3472I-.7498J.2323
N620G1X2.6497Y-.0175
N622G2X2.4248Y-.0669I-.2058J.4002
N624G3X2.3349Y-.0997I-.0053J-.1249
N626G1X2.2429Y-.1843
N628G0Z-.01
N630M5
N632G53Z0.
N634M30

[chester88]

Just off hand I kinda think it's the G92.
G92 is remembered between runs of EMC unless you cancel it with g92.1 or g92.2
Hopefully some g code masters will come here and help you out some more.
And boy is that program hard to read without spaces between g code commands!
I would kill if that is what I had to deal with everyday!

Chris

[Concealed45]

LOL, I know, thats how Mastercams Editor puts it up. At least once its on EMC when you edit it is color coded.

I did some reading on G92, and it seems that most say not to use it, just use G54-59 for work coordinates. Is EMC different on this ? Should I set G92 at the machine home ?

[Concealed45]

Any more Idea/suggestions ? I am about to head out and play with the machine in an attempt to keep myself awake all night.

[chester88]

yes reboot EMC and don't use G 92 or add G92.2 to the end of the program.
See if the problem persists.