Wrapped Text is offset when engraving

[hhshermit]

I am making a micrometer dial.  The numbers are properly wrapped at the Design stage, but when I go to engrave the exact same sketch in Manufacture, the numbers are offset.  I assume this is a problem with my coordinate system, but cannot seem to adjust it so the numbers properly line up.   Any suggestions?

 

[jhackney1972]

Please attach your model so the Forum users can troubleshoot it.  If you do not know how to attach your Fusion 360 model follow these easy steps. Open the model in Fusion 360, select the File menu, then Export and save as a F3D or F3Z file to your hard drive. Then use the Attachments section, of a forum post, to attach it.

[hhshermit]

Here's the model.  Thanks for any suggestions

[jhackney1972 · Accepted solution]

This looks a lot better.  Just redefined the axis as you suggested.  Model is attached.

[jhackney1972]

Can you explain the numbering sequence and the angle they are applied?

[hhshermit]

I certainly appreciate your help and the result looks like I expected.  But I'm unclear on what you changed.  It looks like the origin point is as before, but the axes don't correspond to what the machine will do.  For example, the tool is in the Z axis but the motion will need to be along the Y axis as now set.  I'm not saying it is wrong, just that I don't understand why.

[hhshermit]

The dial ring is for a tool and cutter grinder.  It is recommended to do the numbering in 4 quadrants rather than continuously.  I suspect that is because often the cutters will have 2 or 5 flutes, so rotating to the next one allows for the same numeric setting, just one or two quadrants away.

[hhshermit]

Previous reply should have read 4 flutes, not 5.

[jhackney1972]

I did not know your tool had to be along the Y axis, this is very unusual for me.  I have corrected the model to put the tool back on the Y axis as you need as well as straightened out the tool offset.  I just reassigned the origin to fix the issue originally.  Model is attached.

[hhshermit]

I think I've miscommunicated.  The ring will be mounted on the rotary axis which is oriented so the rotation is about the usual X axis.  The tool is in the usual Z axis with the Z zero at the perimeter of the ring.   X zero would be the bottom side of the ring. I assume cutting will be done using only the X and A axes.

[jhackney1972 · Accepted solution]

The last model I attached in exactly, as far as the orientation of axis, as your original.  All I did was correct the offset you originally wrote about as being your issue.  As far as I can tell it matches your last description.

[hhshermit]

Thanks again John.  I'll give that a try on the machine in the next couple of days.

Brian

[hhshermit]

Hello again John.  Sorry to be dense, but I'm still struggling to figure out what exactly was the change you made.  You say you corrected the offset, but just where did you do that?  Is it in the "Setup" or the contour operation?  I may have too many copies of the file right now, but I cannot see a difference in the Setup and cannot see an offset anywhere else.

[jhackney1972]

When I opened your file, I looked at the Setup and did not notice anything odd, except your tool orientation, which you later explained.  Fusion 360 from time to time needs to be "Refreshed" so to be honest, that is all I did to your setup and I did a re-generation of your toolpath.  After that I ran a Simulation, when all seemed correct, I sent it back.  I did not change a thing, at least in the second submission after you corrected me on the tool orientation, just refreshed all.  So do not strain your eyes looking for changes, I did not do any, just updated everything, that is all it took to correct the offset you were seeing, at least on my application of Fusion 360.

[hhshermit]

I really appreciate the time you have spent helping me on this.  Good to know that nothing needed changing when it came to you.  However, I'm having the same problem with a second ring and even closing and restarting Fusion then regenerating the path did not help.  Shifting the WCS origin up and down does not help either - seems to make no difference to the cutting location.  I think I'm just going to have to "work around" by manually offsetting (i.e. "faking") the origin when I set up the ring in the rotary axis.

[jhackney1972]

Attach this one and lets see if it is your Fusion 360 installation that is giving you fits.  Is it the same offset problem or something different?

[hhshermit]

Hate to put you to more work, but since you offered.....   file is attached

[jhackney1972 · Accepted solution]

This one is an Embossing issue.  Since you are using the Emboss sketch for your toolpath creation, the Offset, in the Y axis of your Embossing feature threw the toolpath off from where you wanted it.  Model is attached where I moved the emboss text sketch, the same distance you had offset the Emboss feature, then remove the Emboss feature offset.  This corrects the issue.  Please, Please, Please check my change in location of the emboss sketch to be sure it suits you.

[hhshermit]

Once again,  many thanks.  I thought I'd tried that but either I did not or I did it wrong. 

So if I understand your comment, using the offset option in the emboss feature within Design messes up the CAM calculations in Manufacture.  If I got that right, I'd say that's a bug for the developers to work on at some point.  The work around is to adjust the position of the text string in the first instance so as not to need to offset it when doing the design emboss.

Anyway, that's the last of the rings I need to engrave, so now it is off to the machine.

Brian

[jhackney1972]

No, no, it is not a big in the program.  It is the chicken and the egg situation, which came first.  The text sketch comes BEFORE the Emboss. You used the text sketch for the toolpath.  The emboss was created AFTER the sketch, which you move with an offset.  The sketch location does not match the location of the physical emboss so you see misalignment in the manufacture environment.