topic Re: bend relief errors in Fusion Support Forum

bend relief errors

jculleton3 — Thu, 19 Sep 2019 19:04:50 GMT

If I make multiple bends and the third bend (in this example) is longer than say .250 I get a relief error when trying to switch from round to straight or tear relief on the fourth bend.

This only seems to happen if the angle of the the angle of the third bend exceeds a certain angle. For the recordings I used 1 degree (which works) and 14 degree (which causes the error sometimes) and -14 degree (which causes the error everytime).

I also notice that as I change the size of the fourth bend using the 2 sided option, I get a relief only after I have reduced the size of the bend by a certain amount.

Hopefully the videos will explain it better.

I make a symmetrical sheet metal .027 thick, first bend is .001 x 0 degrees (to give me a little extra room to work with). Then next bend if under say .250 I can add a third bend with 2 sided option no problems.

If that bend is over .250 the third bend will automatically insert a relief and then not allow me to use the two sided option if I want the relief to be tear or straight.

Thanks JC

https://autode.sk/30ayw1I

Re: bend relief errors

jculleton3 — Thu, 19 Sep 2019 19:06:09 GMT

Another example of the problem.

What am I doing wrong?

Re: bend relief errors

jhackney1972 — Thu, 19 Sep 2019 23:47:19 GMT

I tried to replicate your issues but I am not sure I can fully tell what you are doing from your screencast. You view is not very good and I want to be sure I am trying to do the same thing. Would you please attach one of your models that you are having issues with so I can try it out.

Re: bend relief errors

jculleton3 — Fri, 20 Sep 2019 12:17:14 GMT

Ok.. So I did a simpler example.

I created a small rectangle of sheet metal from drawing.

Then I tried to add a 2 sided extension and turn relief to tear or straight and get an error.

Attached is the file and the screen capture.

Thanks JC

Re: bend relief errors

jhackney1972 — Fri, 20 Sep 2019 18:09:52 GMT

I opened your model and received the same errors. I then took a look at your features, added some constraints and dimensions and then the errors disappeared. Not sure why this would change anything but it does. So I do not have any logical explanation for the errors we both have seen. You will have to depend on others to explain it.

Re: bend relief errors

jculleton3 — Fri, 20 Sep 2019 18:17:28 GMT

Thank you jhackney1972.

I run into this a lot when I am doing sheetmetal.

Perhaps I am doing it wrong?

Thanks JC