HAA_S
Plastic
- Joined
- Nov 11, 2009
- Location
- Sumner, Wa
Hi-
New to this forum but had a problem this week/weekend.
Had to cut M5 X.8 and M6 x 1. threads earlier this week and came across the simple fact that the HAAS lathe is not set up for metric threads program wise since G76 threading is based on inches per rev. (G99) So, from what I have read the lead thread will not be correct unless I change the HAAS to metric.
Is this in setting 9 (G21)?
Is there a better way?
Second, when entering an X (thread pitch) value in the G76 code, the machine never reaches the correct X value (always cuts to an X value larger then programmed) and I have to either change the X value in the G76 or subtract it in X in the wear offset to get the correct pitch dia.
Any ideas why?
Third..
Regarding ACME thread cutting on the SL. How???? LOL.
Is there a formula?
(Once again, never needed to cut these threads)
Thanks for the help in advance. Never had an issue prior because I have never had to cut either metric or acme threads on the SL (prior company never used them)
New to this forum but had a problem this week/weekend.
Had to cut M5 X.8 and M6 x 1. threads earlier this week and came across the simple fact that the HAAS lathe is not set up for metric threads program wise since G76 threading is based on inches per rev. (G99) So, from what I have read the lead thread will not be correct unless I change the HAAS to metric.
Is this in setting 9 (G21)?
Is there a better way?
Second, when entering an X (thread pitch) value in the G76 code, the machine never reaches the correct X value (always cuts to an X value larger then programmed) and I have to either change the X value in the G76 or subtract it in X in the wear offset to get the correct pitch dia.
Any ideas why?
Third..
Regarding ACME thread cutting on the SL. How???? LOL.
Is there a formula?
(Once again, never needed to cut these threads)
Thanks for the help in advance. Never had an issue prior because I have never had to cut either metric or acme threads on the SL (prior company never used them)