Text machines backwards on rotary job

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bbiehl
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Text machines backwards on rotary job

Post by bbiehl »

The preview comes out correctly (see attached) but when machined it is backwards (flipped 180 degrees).
What am I doing wrong? I am using Aspire 10.509.

-brian
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Pencil Holder.jpg

JimmyD
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Re: Text machines backwards on rotary job

Post by JimmyD »

Your machine and your software aren't matching which way the rotary is turning. Either flip your job in your software or change your 4th axis to turn the other direction.

bbiehl
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Re: Text machines backwards on rotary job

Post by bbiehl »

How do I program my machine's 4th axis to turn the other direction? I am using Mach 3

-brian

phill05
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Re: Text machines backwards on rotary job

Post by phill05 »

In Mach3 Go to "Config" "ports and pins" "motor outputs" click to put a green check mark in A "Dir Low Active" click accept click ok you should find your A axis if working in reverse of what it was.
Leave all other axis as you find them if working correctly.

Phill
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dealguy11
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Re: Text machines backwards on rotary job

Post by dealguy11 »

That's the hard way to do it. Easier way is to just modify the post-processor.

Somewhere in the Mach3 wrap post-processor for your machine should be a statement like the following:

ROTARY_WRAP_X = "A"

It may be Rotary_Wrap_Y.....I can't remember which axis they use on the Legacy machines.

Change the "A" to "-A". If it already says "-A", then change it to "A".

Then save the post-processor. I always append my initials to the end of the post-processor name so I know it's one I modified. Use that post-processor for wrapped work going forward.

That should fix the problem.
Steve Godding
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Greolt
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Re: Text machines backwards on rotary job

Post by Greolt »

Either method above will reverse the axis direction.

However I would suggest first making sure your rotary axis is turning in the conventional direction.

Make a thumbs up fist.
Point the thumb in the positive direction of the axis which the rotary is aligned with.
The direction your fingers are curling is the positive rotary direction.

Makes no difference which end of the rotary is the drive end.
Only which direction it turns in relation to the axis it is aligned with.

Get that right with the first method above.
Then use Steve's method to set the post processor correctly.


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bbiehl
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Re: Text machines backwards on rotary job

Post by bbiehl »

Thanks for the feedback. I fixed it by changing the Post-processor.
-brian

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