topic Re: Unable to add draft to some surfaces in model - help please in Fusion Support Forum

Unable to add draft to some surfaces in model - help please

Anonymous — Sun, 06 Sep 2020 08:44:23 GMT

I've designed a relatively simple heat press mold in F360. I need to have 10 deg. draft on all surfaces. I had no trouble on all but three edges, but cannot find the reason I get odd behavior or just error messages on the last three of them...
Could someone please put me on the right path and/or find my errors?

The jpg file shows which surfaces don't have draft. I also noticed a glitch with extrusions in the "x" corners that I can't fix. These are not critical but I'd like to know what I did wrong - if someone can be bothered to check.

Lastly, I don't know how to share a file from my cloud storage here - or to anyone else. How do I do that, please?

Cheers,

Joe Hovel (in Australia)

Re: Unable to add draft to some surfaces in model - help please

g-andresen — Sun, 06 Sep 2020 09:19:36 GMT

Hi Joe,

1. clean up the sketch with its multiple (2 / 3 times) lines
2. extrude with taper

günther

share design via data panel

Re: Unable to add draft to some surfaces in model - help please

Anonymous — Sun, 06 Sep 2020 13:43:19 GMT

Thank you very much Guenther!

How can I find duplicate lines in my sketches, please? I've occasionally found some accidentally, but I have no idea how to go looking for them deliberately 🙂

Secondly, I had no idea you could extrude with taper. That will make things like this much easier!

Cheers,

Joe

Re: Unable to add draft to some surfaces in model - help please

Anonymous — Mon, 07 Sep 2020 10:56:26 GMT

That didn't quite work.... The taper extrusion isn't possible as it turned out, because its not allowed to overlap - draft is - in narrower spaces than the angle of the taper allows....
Back to cleaning up the sketch: I found a few duplicate lines by the laborious process of deleting lines and seeing if they disappeared: if the didn't, they were duplicates... THERE MUST BE A BETTER WAY.

Found a couple of microscopic discrepancies. Finally I was able to apply draft to all flanks.

Now I get a completely new error message when I try to generate milling tool paths: apparently there is a face missing in the model. I can't find anything missing.....

Always two steps forward one step back 🙂 I'll keep trying to figure it out or will put a new post here.

Re: Unable to add draft to some surfaces in model - help please

g-andresen — Mon, 07 Sep 2020 11:42:06 GMT

Hi,

1. taper is always limited by the geometry
2. double lines can be found like this

3. constrain the sketch

günther

Re: Unable to add draft to some surfaces in model - help please

Anonymous — Mon, 07 Sep 2020 15:28:14 GMT

Thank you again Guenther!
Always very helpful.

Cheers,

Joe

Re: Unable to add draft to some surfaces in model - help please

Anonymous — Mon, 07 Sep 2020 16:26:32 GMT

Dear Guenther,

I just went to check out my entire sketch to look for remaining duplicate lines.

Now EVERYTHING is going wrong.... When I open the sketch I get the warning that a face is missing, then the body disappears and the sketch is completely different (lots of blue squares on all lines). When I click on anything, I get an error message to say that "some of the features are set to invisible" and the whole sketch disappears. When I saved it, the whole file is empty! This is very frustrating.... I went back to an earlier version and exported it to my desktop for backup.

Would you please have a look at it and tell me what I'm doing wrong now?

As I mentioned earlier, I am still unable to create anything in 'Manufacturing' as tool paths - that worked perfectly yesterday with the model with still missing draft sides. Now that all the sides are as they should be (as a result of your advice), I can't get any further with tool paths at all.... The error message is the 'missing face' that I can't find - yet it is clearly visible in the model.

I'm right out of my depth with this - after 6 months of formal school and lots of other modelling without any issues (but no drafts or tapered extrusions, haha...).

Kind Regards,

Joe

Re: Unable to add draft to some surfaces in model - help please

g-andresen — Mon, 07 Sep 2020 17:24:19 GMT

Hi Joe,

1. the visibility of the sketch was disabled

2. I have edited the text sketch in V-Carve.

I removed the outer contours (CX) and added them again with offset incl. corner editing.
After the import into Fusion it looked much better.

günther

Re: Unable to add draft to some surfaces in model - help please

Anonymous — Fri, 11 Sep 2020 12:39:15 GMT

Thank you again for your helpful assistance Guenther!

Your version changed some of the critical dimensions, but it allowed me to see how you went about it. I was able to do exactly what I need to as a result.

It is a steep learning curve but learning is the purpose of these projects for me!

I love being able to ask someone - exactly what these forums are for, of course.

Kind Regards,

Joe