Conversions

[Stephen]

How does one post to a CNC lathe that does not support G20(Inch), only G21(metric). 99.9% of our parts are in Inch dimensions....Thanks

[Allan Brown]

Generally, you have 2 choices

1. Change to a metric config, scale the part and reprogram (step down values, etc. will have to be modified). I believe Lathe handles inch tools in metric and metric tools in inch on the fly - Mill does not, so you need to using unit equivalent tools.

2. Have a scale factor post created to convert units during posting, rather than during programming. This can get a bit complex, depending on what needs to be supported. Have your reseller quote you on this.