Lathe Ref Points (not G50)....tweak in post?

[my87csx481]

Hi all.

 

I know I probably use the mcam reference points in an unorthodox manner but, I like to use the feature to my advantage and preference.

 

I like to NOT rapid right to the starting point of whatever cycle I am about to use to cut.

 

Suppose G54 Z zero is the front face of a part and all the part's Z coordinates are negative.

 

I like to rapid to whatever X diameter and say, absolute Z 1.0", then feed from there to whatever Z coordinate, say Z+.05 at F.1 per rev. The reason for this is the machine's feed override knob does not affect rapid rate....the machine has a seperate rapid overide switch (100%, 50%, 1%). I like to have a little more control the first time through and have that control on a single knob (instead of trying to find the rapid switch).

 

So my question is: how can I get the move from Z1.0 to Z.05 at a feed rate of .1/rev instead of a rapid move and still maintain the rapid move from home to Z1.0? As crazy as this sounds, I always edit the program and add the G01Z___F.1. It's getting old.

 

What I get:

 

T0505

G96G99S600M3

G0X1.89Z1.

Z.05

G71_ _

 

What I want:

 

T0505

G96G99S600M3

G0X1.89Z1.

G01Z.05F.1

G71_ _

 

In V9.1, I could set the default reference points values (I set mine to absolute Z1.0 because I usually use the front face for G54 Z0.0 and I'm comfortable with the 1 inch safety move) and just remember to check the Ref. Points box for every tool I wanted to use them for. You can do it in X also, but it's bugged and it doesn't keep the values after you save it in Machine Def. -> Edit axis combinations -> Reference Points. So I have to key in the Z1.0 for every tool, or: Edit selected operations -> Edit common parameters -> check the ref. points box and key it in once for all tools.

 

Can this be tweaked in the post? If so, please help me out.

 

I do know about the rapid moves to maximum feedrate checkbox....but I want the rapid moves to be rapids....I just want the move from mcam reference point to cutting cycle start point to be a feed move.

 

Sorry for being soooo long winded.

[gcode]

Mike,

If you set Machine Def defaults from "Edit"

in the Operations Manger, they apply to that MCX file ONLY and you'll have to set them every time

you start a new job.

If you want your default edits to stick, you need to do them from the

Machine Type/Machine Def Manager at the top of the screen. Those edits will permanently change

the Machine Defintion.

I can't help you with the post question

[Chao]

Hi there,

 

You can use toolpath-point-rapid(pick up the point)-back-feedrate(pick up other point), thenthe parameter window popup and you can change the feed and rpm...

 

good luck