Need to switch an old lathe to radius mode

[teachtech]

I've been browsing the forums for a few weeks trying to finad an answer to this question, but no luck so far.

I have an older lathe (microturn branded as Intelos by Midwest. Made Oct 1999. It is running FanucML- Denford Microturn v2.12). I'm trying to bring this back into my curriculum with high school students and have found a nice free program for them to generate their code with (Lazyturn) that I can put on all student machines. No budget right now to buy something else. The lathe is set for diameter mode. Lazyturn has a setting to generate code for diameter mode, but it only works for the rough pass, not finish pass. This means that the machine would work fine for the rough passes, but destry the work for the final passes by taking way too much off. Lazyturn is out of development and not expected to be corrected. I need to switch the lathe to radius mode, but can't figure out how. I would think the settings are in the fanucml.opt file. Logic would tell me that if I change the machineextentx from 80 to 40, move rangex from 160 to 80 and chuckcentrex from 40 to 0, it should give me something different, but doesn't. Here's the .opt file. Any help with this would be greatly appreciated.

AUTOERROR 0
DRAGMARKING 0
DISPLAYSIZE 3
NARROWSIMBOX 0
utils_menu_1 Dos Access
utils_go_1 dos
HIGHFEED 300
HIGHFEEDZ 300
SLAVE_XDATUMFEED 250
SLAVE_ZDATUMFEED 250
SLAVE_SPINDLEFACTOR 1.2
SLAVE_ACCEL 160
SLAVE_RAMP 5
machineextentx 80
machineextentz 110
moverangex 160
moverangez 110
chuckcentrex 40
billetz 70
slave_manualfastfeed 300
slave_manualfastfeedz 300
mintool 1
maxtool 16
ATC 0
METRIC 0
* next 4 lines added by J Bond 23/03/95 at P Koontz request
MINT_MFACT 314.96
SLAVE_MMCONVERT 314.96
lowspindle 100
highspindle 2900