Threadmilling on a V2XT

[rfdoyle]

Did a little threadmilling last night on my V2XT. I think it turned out pretty good. I did not arc in/out and I can't tell where I started. Yeah, I can tell where each quadrant is.... but they all look the same. Mat'l was 6061 and I was using a solid carbide stagger tooth mill.
Roger

[5S Dude]

Originally Posted by rfdoyle Did a little threadmilling last night on my V2XT. I think it turned out pretty good. I did not arc in/out and I can't tell where I started. Yeah, I can tell where each quadrant is.... but they all look the same. Mat'l was 6061 and I was using a solid carbide stagger tooth mill. Roger

Hi Roger, Can you post the code for your thread milling routine? Sounds like you’ve got a good handle on V2XT programming as well.

I’ve got a question I hope you can answer. I’m tapping holes and need to clear a clamp on two of the holes. Can I simply insert a G98 in front of the G84 tapping cycle and jump to the initial plane for these two holes or do I have to use a .500 clearance plane on every hole.

Thank you so much in advance,

Ron

N1 T1 M6;(1/4-28 TAP HOLES)
S750 M3
G00 X.8961 Y-1.374
Z.1
G84 X.8961 Y-1.374 Z.19 F26.78
Y-3.372
Y-5.37
Y-7.368

X11.6463 ;(NEED TO CLEAR .5 TALL CLAMPS)
Y-5.37

X17.654 Y-3.372
Y-1.374
G80
G0 Z.1 M9
M22

[rfdoyle]

Yeah, I can post the code. Just forgot to copy it off of the mill.

As far as the jump height... it depends on how many pieces you have to do. I'm not familiar with the G98 but I don't think that will work within a drilling cycle. IMO.... If there is just a few, I would make the retract plane the same for all. My calculations come up with about a 7 second longer cycle. This is based on 6 holes that would travel .5 inches more (.6 retract) at 26.78 ipm.

If you have a lot of parts and are really worried about it then I would set up 3 drill cycles. 1 for the first 4 holes at Z.1, 1 for the next 2 at Z.5 or .6, and a 3rd for the last 2 holes at Z.1 again. This kinda sucks from the stand point you have 3 cycles to maintain/update. I've edited the code below to what should work on my mill. Don't know if your control is the same.

N1 T1 M6;(1/4-28 TAP HOLES)
S750 M3
G00 X.8961 Y-1.374
'LOW RETRACT'
Z.1
G84 X.8961 Y-1.374 Z.19 F26.78
Y-3.372
Y-5.37
Y-7.368
G80
'HIGHER RETRACT'
G0 Z.6
X11.6463 Y-7.368
G84 X11.6463 Y-7.368 Z.69 F26.78;(NEED TO CLEAR .5 TALL CLAMPS)
Y-5.37
G80
'LOW RETRACT'
G0 X17.654 Y-3.372
Z.1
G84 X17.654 Y-3.372 Z.19 F26.78
Y-1.374
G80
G0 Z.1 M9
M22

[5S Dude]

Originally Posted by rfdoyle Yeah, I can post the code. Just forgot to copy it off of the mill. As far as the jump height... it depends on how many pieces you have to do. I'm not familiar with the G98 but I don't think that will work within a drilling cycle. IMO.... If there is just a few, I would make the retract plane the same for all. My calculations come up with about a 7 second longer cycle. This is based on 6 holes that would travel .5 inches more (.6 retract) at 26.78 ipm. If you have a lot of parts and are really worried about it then I would set up 3 drill cycles. 1 for the first 4 holes at Z.1, 1 for the next 2 at Z.5 or .6, and a 3rd for the last 2 holes at Z.1 again. This kinda sucks from the stand point you have 3 cycles to maintain/update. I've edited the code below to what should work on my mill. Don't know if your control is the same. N1 T1 M6;(1/4-28 TAP HOLES) S750 M3 G00 X.8961 Y-1.374 'LOW RETRACT' Z.1 G84 X.8961 Y-1.374 Z.19 F26.78 Y-3.372 Y-5.37 Y-7.368 G80 'HIGHER RETRACT' G0 Z.6 X11.6463 Y-7.368 G84 X11.6463 Y-7.368 Z.69 F26.78;(NEED TO CLEAR .5 TALL CLAMPS) Y-5.37 G80 'LOW RETRACT' G0 X17.654 Y-3.372 Z.1 G84 X17.654 Y-3.372 Z.19 F26.78 Y-1.374 G80 G0 Z.1 M9 M22

You're da bomb!! Thank you so much for spending time to help me. This place rocks! I'm not too concerned about the longer cycle time. I just don't wanna clobber my hold down clamps and wreck my new tapping unit. I have a 1998 V2XT with a DX32 control a the moment. Thanks again! I'll run your code thru the stimulator and see what she does.

[5S Dude]

Originally Posted by 5S Dude You're da bomb!! Thank you so much for spending time to help me. This place rocks! I'm not too concerned about the longer cycle time. I just don't wanna clobber my hold down clamps and wreck my new tapping unit. I have a 1998 V2XT with a DX32 control a the moment. Thanks again! I'll run your code thru the stimulator and see what she does.

Rfdoyle, Your code worked great the tap cleared my clamps and positioned over to the remaining holes and tapped them all perfectly. My last question is;

Has anyone tried to utilize G98 used for Return to Initial Level (Canned Cycles) & G99 used for Return to Rapid Level (Canned Cycles) from a FANUC 6MB control in front of their drilling/tapping cycles on their DX32 control?

Thanks gang!