topic Re: Intersection ACCURACY in Fusion Support Forum

Intersection ACCURACY

charlescooke58 — Wed, 20 Oct 2021 06:30:21 GMT

Fusiion 360 why must I zoom in to something to see if you are doing what I want what is so hard about intersecting a line accurately. why have got to be ask for help for a simple task?

Re: Intersection ACCURACY

davebYYPCU — Wed, 20 Oct 2021 08:39:20 GMT

Normally, the cursor will display snap points when connecting to sketch articles, that exist in Current Sketch. You can’t snap to articles in other sketches. Project other sketch articles into current sketch.

Might help....

Re: Intersection ACCURACY

charlescooke58 — Wed, 20 Oct 2021 09:19:43 GMT

that is the problem I created sketch projected the airfoil, clicked on the projection and a little icon came up, clicked on it and the prorection turned to a blue line then intersected it. When I tried to loft everything - error zoomed in and saw why and I cant get it to intersect.

Re: Intersection ACCURACY

TheCADWhisperer — Wed, 20 Oct 2021 10:59:51 GMT

Are there any unresolved issues highlighted in your Timeline?

Re: Intersection ACCURACY

davebYYPCU — Wed, 20 Oct 2021 11:37:45 GMT

My workflow, is create sketch, next

I Project to the empty sketch the articles I want to refer / connect to,

hide everything but current sketch to confirm the purple projected points are there.

Add detail to the current sketch snapping to the purple geometry.

Fusion takes great delight in mimicking to snap to articles not in the current sketch, and will tell you it is not connected when Lofting.

Looks like the wing’s tip, two purple points TE, and Project > Intersect the LE of the rib edge.

Might help.....

Re: Intersection ACCURACY

charlescooke58 — Thu, 21 Oct 2021 08:48:12 GMT

Sorry for the delay I dont know what to say, I do what you say and I dont get the result, I have had it with F360 it pathetic program. Every time I try do something I walk away frustrated even coming on to this community forum I have issues absolutely nothing is straight forward with program . Thanks for your help any way.

Re: Intersection ACCURACY

charlescooke58 — Thu, 21 Oct 2021 09:01:19 GMT

Sorry for the delay, there is always unresolved issues in my timeline, the thing is I dont know how to fix them everything about this program complicated. What I cant understand is, I cant click on that rib and create a sketch it is a face isnt it?

Re: Intersection ACCURACY

TheCADWhisperer — Thu, 21 Oct 2021 11:33:05 GMT

@charlescooke58 wrote:
1. …always unresolved issues in my timeline,
2. …the thing is I dont know how to fix them
3. …everything about this program complicated.

1. Don’t ignore unresolved issues. Ignoring them only creates more issues.

2. The way to fix them is to STOP 🛑 whatever you are doing immediately. Click Undo. And then Attach your.file here and explain what you attempted that caused the issue. Someone here will explain why the issue occurred and how to fix.

3. Fusion is easy. It is your design that is complicated. Way too complicated for a beginner. I would expect to have 3-4 years of solid experience on designs starting from easy and gradually increasing in complexity leading up to this design. By starting easy - you learn how to avoid unresolved issues.

Based on my experience I know that you will not listen to my recommendation to start with easy projects and build your experience up back to this project. In that case, I recommend that you start this project over from scratch and 🛑 at each sketch or sign of trouble and Attach your new file here for suggestions before proceeding past unresolved issues.

Re: Intersection ACCURACY

TrippyLighting — Thu, 21 Oct 2021 12:15:13 GMT

Lofting requires accuracy on side of the designer.

If you find Fusion 360 to complicated to work in, then you need to take several steps back and start learning a the basics.

E.g. know how to fully define (constrain and dimension sketches).

Working with splines has its own challenges, and should really not be attempted before other basics are understood.

Re: Intersection ACCURACY

TheCADWhisperer — Thu, 21 Oct 2021 12:49:15 GMT

One of the keys is to treat Fusion as though it were a Time Machine.

Every child has at least one parent.

If you go back in time in your Time Machine and delete a child's parent, when you move forward again in your Time Machine to the present, how can you logically explain the existence of a child who's parent was "deleted" before the child was born. You can't ignore logic without creating inconsistent relationships.

And use dimensions. Logical dimensions.

If I can't measure with standard measuring instruments out on the shop floor - then in my work the dimension isn't logical. I am not an artist. I need logical dimensions. I am a scientist/designer. I need dimensions that anyone else with requisite skills on the shop floor can reproduce my work.

It looks to me like you are creating some nice artwork, but not work that I could reproduce.

Re: Intersection ACCURACY

charlescooke58 — Fri, 22 Oct 2021 00:09:27 GMT

I agree my work at the moment is good to look at but what a . mess and that
is why I am walking away frustrated.
I get the impression you got to think and plan before you draw, but one
must know the rules first and that is what I am not understanding. I have
watched different youtube footage 3,4 times on subjects, but yet I am still
having problems, and this simple task I have done it before and it has
worked now it dosent work starting from selecting the face of the rib to
create sketch on and that I have used before, I can select it but not
create sketch why???

Re: Intersection ACCURACY

charlescooke58 — Fri, 22 Oct 2021 00:18:27 GMT

I fully agree I have watched many youtube footage and tried what they do,
but I dont fully understand. I would say I am half educated and really
need to do a course.

Re: Intersection ACCURACY

charlescooke58 — Fri, 22 Oct 2021 00:36:27 GMT

Thanks for that I have been doing basic youtube courses, I take it you know
Lars, anyway He is good, I have done some of his work a few times and get
my confidence up only to to be destroyed when this happens, but you are
right the Cessna 210 , well there is there very little straight lines on
this baby, I watched a guy draw a DC10 and that at is far easier. But hers
a thing , he moved c.panes into place, rotated them everything and I
cant do it, all I can do is enlarge them??
But thanks again I will start again and this will be about the 10 time.

Re: Intersection ACCURACY

charlescooke58 — Fri, 22 Oct 2021 06:52:55 GMT

Hi again I have taken your advise and I am doing something simple. In my sketch I want to mirror the left over to the right so I put a work pane in the middle then clicked on the left sketch blue line, edit sketch, mirror and when I look for the C.pane it isnt anywhere to be found and this happens every time I edit sketch other sketch's bodies etc disappear that I need to edit my sketch ie the C.pane in this case. Why??

Re: Intersection ACCURACY

TheCADWhisperer — Fri, 22 Oct 2021 07:05:53 GMT

@charlescooke58 wrote:
Hi again I have taken your advise…

You missed steps 1 and 2.

Is you Sketch 1 fully defined?

Are there any unresolved (and ignored) issues highlighted in your Timeline?

No file Attached?

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

Re: Intersection ACCURACY

davebYYPCU — Fri, 22 Oct 2021 07:01:51 GMT

In the editing of a sketch - a work (construction) plane does not have any function, you can project it into the sketch,

A mirror LINE is required as the symmetry operator.

Might help....

Re: Intersection ACCURACY

charlescooke58 — Fri, 22 Oct 2021 09:01:09 GMT

Ok but what about other sketch's, bodies etc for instance I have wanted to continue on a sketch from a body and when I click on a sketch to edit the body I want isn't anywhere but the bodies that I don't need are there, it happens every time.

Re: Intersection ACCURACY

charlescooke58 — Fri, 22 Oct 2021 09:03:53 GMT

I have sent the file as you asked.

Re: Intersection ACCURACY

davebYYPCU — Fri, 22 Oct 2021 09:33:52 GMT

That is how it is supposed to be.

when you create a sketch, and then make a body from that sketch. The body does not exist, while you are making the sketch.

Same is true to now have a sketch and a body from it, want to edit the sketch, the timeline reverts to time of sketch creation, body is temporarily hidden while you edit, and when done, if the changes are relevant the body will be restored with relevant update/s.

Normal behaviour for time line modelling.

Might help....

Re: Intersection ACCURACY

charlescooke58 — Fri, 22 Oct 2021 09:40:01 GMT

Ok thanks for that, so I take it I should pay more attention to the
timeline than just drawing away as i do.