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NickMihelich12-Amethyst
12-Amethyst
September 19, 2011
Question

Inch programs to metric output?

  • September 19, 2011
  • 2 replies
  • 3886 views

I would like to switch my milling center to metric but all of the programs we have created and use over the last 10 years are in inch. Is there a easy change that i can use to output older inch based programs to metric? I have tried outputing a CL file and changing the units to mm but the feeds do not change only the length units change.


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2 replies

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SteveLucas1-Visitor
1-Visitor
September 22, 2011

Nick don't you have to change your postprocessor to output in metric to get the feeds to change?

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NickMihelich12-AmethystAuthor
12-Amethyst
September 22, 2011

When I change the post to input inch output metric the feeds do not seem to convert correctly.

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SteveLucas1-Visitor
1-Visitor
September 22, 2011

Not sure what to do Never tried to switch?

When I use metric tools I just convert to english. I have a bunch of metric solid modeled endmills and ball endmills but all are converted.

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Luigi1-Visitor
1-Visitor
October 27, 2011

Nick, I am assuming you have Inch models, though you only specified Inch code. I currently work with Metric models, inch tooling and run my mill in Inch mode.

Let's assume you are working on an Inch units model. You have too love ProMan for this one. In the parameters settings for each sequence, try setting your feed units to MMPM, with proper coresponding values. When you output the CLData untis to MM, the feed parameters will output correctly.

If you already have previously stored CLData, having your Post do this may be the best solution, but the above method works when programming.

I must add that I have had my share of coversion issues with ProE, as far as Manufacturing is concerned. The CLData in the Show Path window has always been correct. The converted output of the CLData file is where you will catch the bugs. The majority of them have been canned cycles drilling related, with the mosrt recent occurrence involving a sketched tool with a driving coordinate system. These issues took several attempts for PTC to fix.

Whenever converting units, make sure you do a quick check of your G-Code output!

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