Heidenhain Conversational Error

[G Caputo]

Hi all, I am having an issue here and am not sure if it the post or my lack of mastercam knowledge.... hoping someone could point me in the right direction. When I do a simple 2d contour in mastercam, trying to use cutter compensation at the control, I get programming that is close, but not close enough. I need the guys out on the floor to have flexibility with the cutter comp on the machine, so turning on the comp in the computer would work, but it wouldn't be benificial to me, because of cutter runout, wear, reground endmills etc... I am doing a 2d contour with lead in and lead out on a straight line, cutter comp to the left. I get code that looks like this.

 

1 ; FINISH 3.490" WIDTH AT 2.625" DEPTH.

2 L X-2.25 Y+2.495 R0 F MAX

3 L Z+.1 R0 F MAX

4 L X-2.25 Y+2.495 Z-2.625 F20

5 CC X-1.5 Y+2.495

6 C X-1.5 Y+1.745 DR+ RL F50

7 L X+4.045 Y+1.745 RL

8 CC X+4.045 Y+2.495

9 C X+4.795 Y+2.495 DR+ R0

10 L Z+5 R0 F MAX

11 STOP

 

My problem is the controllers (tnc415, 426 and 430) do not recognize going from a point and turning on the comp to a circular move. Line 4 is no comp to line 6 circular move with comp. Anyone familiar with heidenhain conversational that could steer me in the right direction would be greatly appreciated. Thanks all for a wonderful forum.

Cheers,

Greg

[Roger Martin from CNC Software]

quote:

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My problem is the controllers (tnc415, 426 and 430) do not recognize going from a point and turning on the comp to a circular move. Line 4 is no comp to line 6 circular move with comp.

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You have stated the problem correctly ->

 

You cannot activate CDC on the machine on a CIRCULAR move. (Very few machine controls can do that!)

 

You need a LINEAR lead-in to do that. And most likely a linear lead-out move to de-actiavete the CDC.

 

Click on the the Lead in/out button on the Contour Parameters page and setup fopr some linear in/out motion to/from your contour.

[G Caputo]

Roger,

Thank you very much. I had zero in the field you described. That was what it took to correct my problem. I have been programming at the machines for 14 years and I know what it is supposed to look like, but trying to get mastercam to do it are two different things. I miss my RND button...... Again, Thank You.

 

Greg

[Henk]

G Caputo,

 

When I use the Cutter Compensation, I always use the Lead in/out: Line Perpendicular and length > tool radius.

Arc: rad > tool radius

 

HTH