Mach3 doesn't take into account my feeds. It just runs everything at rapid = 1000mm/min
What's the deal?

Thanks
Aleks.

Here's the G-code:
%
O0000
(PROGRAM NAME - TURNING POST 04)
(DATE=DD-MM-YY - 01-01-08 TIME=HH:MM - 18:34)
(MATERIAL - ALUMINUM MM - 2024)
G21
(TOOL - 1 OFFSET - 0)
(OD ROUGH RIGHT - 80 DEG.  INSERT - CNMG 12 04 08)
G0 T0100
G97 S1500 M03
G0 G54 X23.1 Z.5 M8
G98 G1 X-2.8 F80.
G0 Z1.5
X23.1
Z0.
G1 X-2.8
G0 Z1.
X19.33
Z4.5
G1 Z2.5 F150.
Z-9.705
X20.123 Z-10.391
X22.951 Z-8.977
G0 Z4.5
X18.538
G1 Z2.5
Z-9.019
X19.73 Z-10.052
X22.559 Z-8.637
G0 Z4.5
X17.746
G1 Z2.5
Z-8.333
X18.938 Z-9.366
X21.767 Z-7.951
G0 Z4.5
X16.954
G1 Z2.5
Z-7.647
X18.146 Z-8.679
X20.974 Z-7.265
G0 Z4.5
X16.161
G1 Z2.5
Z-6.961
X17.354 Z-7.993
X20.182 Z-6.579
G0 Z4.5
X15.369
G1 Z2.5
Z-6.275
X16.561 Z-7.307
X19.39 Z-5.893
G0 Z4.5
X14.577
G1 Z2.5
Z-5.589
X15.769 Z-6.621
X18.598 Z-5.207
G0 Z4.5
X13.785
G1 Z2.5
Z-4.903
X14.977 Z-5.935
X17.805 Z-4.521
G0 Z4.5
X12.993
G1 Z2.5
Z-4.217
X14.185 Z-5.249
X17.013 Z-3.835
G0 Z4.5
X12.2
G1 Z2.5
Z-3.53
X13.393 Z-4.563
X16.221 Z-3.149
G0 Z4.5
X11.408
G1 Z2.5
Z-2.844
X12.6 Z-3.877
X15.429 Z-2.463
G0 Z4.5
X10.616
G1 Z2.5
Z-2.158
X11.808 Z-3.191
X14.637 Z-1.777
G0 Z4.5
X9.824
G1 Z2.5
Z-1.472
X11.016 Z-2.505
X13.844 Z-1.09
G0 Z4.5
X9.031
G1 Z2.5
Z-.786
X10.224 Z-1.819
X13.052 Z-.404
G0 Z4.5
X8.239
G1 Z2.5
Z-.1
X9.431 Z-1.132
X12.26 Z.282
G0 Z1.85
X8.066
G1 Z-.15 F50.
X19.949 Z-10.441
X22.778 Z-9.027
G0 Z1.8
X7.893
G1 Z-.2
X19.776 Z-10.491
X22.605 Z-9.077
G0 Z1.123
X17.542
G1 Z-.877 F200.
Z-78.587
X19.289 Z-80.1
X22.118 Z-78.686
G0 Z1.123
X15.795
G1 Z-.877
Z-77.074
X17.942 Z-78.933
X20.77 Z-77.519
G0 Z1.123
X14.047
G1 Z-.877
Z-75.56
X16.195 Z-77.42
X19.023 Z-76.006
G0 Z1.123
X12.3
G1 Z-.877
Z-74.047
X14.447 Z-75.907
X17.276 Z-74.493
G0 Z-1.377
X12.3
G1 Z-3.377 F50.
Z-74.047
X19.289 Z-80.1
X22.118 Z-78.686
G0 Z-1.377
X12.1
G1 Z-3.377
Z-74.074
X19.116 Z-80.15
X21.944 Z-78.736
G0 Z-1.377
X11.9
G1 Z-3.377
Z-74.101
X18.943 Z-80.2
X21.771 Z-78.786
G0 Z-78.
X19.45
G1 Z-80.
Z-90.
X22.278 Z-88.586
G0 Z-78.
X19.25
G1 Z-80.
Z-90.
X22.078 Z-88.586
G0 Z-78.
X19.05
G1 Z-80.
Z-90.
X21.878 Z-88.586
G0 Z1.25
M9
G28 U0. W0. M05
T0100
M30
%

I am having a similar problem  on occasion, I can run the file the first time after mach is launched and it follows the feed rates called out but when I run the code the second time it does all moves at the rapid speed until I turn mach off and restart it. I can usualy reboot the computer and it clears up

Looks like all of your feeds are in mm per min.
You might try putting G94  in your initialization string.
RC
 

Thanks! It worked!
I thought that G21 took care of everythin, but i guess G94 is necessary
Now is there a way to change my post processor to add that in every time to avoid catastrophe in the future?

Not sure about that.... There is a setting in Mach, "Start-up Modals" where you can set a common init. string though.
Good Luck,
RC

I'm sure the mastercam Post Processor can be tweaked to generate the code any way you want. I have never messed with a mastercam PP though. Is their a utility in mastercam for making a post processor? If not, you may be able to open the PP and play with the code a little. Some cam packages use a pre-processor as well as a post processor. E-mail me the PP and I will see if I can do anything with it.

Brett

yes mastercam post can be tweeked, send it to me and a list of what you want added and i will do it for you
just alow a bit of time, I need to goto my friends shop to test it, i dont have mastercam.
you can then use total commander or beyond compare to see the diffs,
thanks Friedrich
ps also include the cad file for posting

Thanks alot! I really appreciate it!
Here is the lathe post processor which i already modified by changing the y scaling from 2 to -2.
All I would need is to add a line of G94 at the beginning of every code, because i always use metric.
Also, if you know how to resolve this problem with a few mouse click, i'd be very greatful aswel: http://www.machsupport.com/forum/index.php/topic,5331.0.html
Thanks
Aleks.

PS: I changed the extension of the MPLFAN From .pst to .txt because machsupport didn't like the other extension