The filet/chamfer could not be created...241130

[pittsallen]

Hello Fusion forum,

Sketch is extruded and finishing piece with filet.

Get error message: "The filet chamfer could not be created at the requested size. Try adjusting the size, deselecting some of the edges. (Try disabling Target Chain), or using, multiple operations.

Tried several troubleshooting tactics:

Tried the following suggestions: 

• Redraw the sketch from the extrusion feature. 
• Delete the face and revise the body.
• Increase the area where the fillet/chamfer needs to be accommodated.
• Adjust the size of the fillet/chamfer to better fit the edge. 
• Adjust the tangency weight of the fillet to better fit the geometry. 
• Change the order of creating two fillets that blend into or overlap each other.
• Create the fillet or chamfer by using a sweep cut command with a sketch profile of the desired fillet or chamfer size and angle. 
• Create the chamfer by selecting the face and deleting the unwanted faces after creating the chamfer.
• Use mesh selections to smoothen the edges:

1. Convert the body to an STL.
2. From the Create menu, select Create Mesh Section Sketch.
3. Select the model. 
4. Edit the sketch that was created.
5. From the Create menu, select Fit Curves to Mesh Section.
6. A new smoother sketch will now be created. Use this new sketch for modeling. 
   
   The sketch was redrawn and as new parts of the sketch added the part was extruded and fileted successfully.
   but when the last section of the part is added as defined by Curve Alpha, as shown in the image below,
   the error reappears.
   
   Also tried Create Mesh Section Sketch.
   

   Was unable to create the sketch or do anything beyond the dialogue box shown above.
   
   How can the filet be completed?
   Thanks.
   
   Allen Pitts
   
   

   
   
   
   
   

[KristianLaholm]

Your first sketch is broken, one of the arcs are not correctly attached to the lines (there are some more strange lines floating around in the sketch).
In the image I have dragged the arc end point away from the line.
Fully defined sketches can help you avoid problems like this.

[jeff_strater]

@KristianLaholm has it right - there is something wrong with that sketch.  Fillet is very sensitive to tangency.  If I redraw the sketch focusing on tangent constraints, the result can be filleted.  Also:  It is better to go back and edit the first extrude rather than extrude, apply one fillet, extrude again, and apply more fillets.  You end up with fewer features (you really only need 3 here - one sketch, one extrude, and one fillet - i made the fillet in two features, but that is not necessary)

[TrippyLighting]

I created a screencast in the other thread you started. 

Please watch that screencast. If you follow the instructions in that screencast, your chamfering problems will disappear.

[g-andresen · Accepted solution]

Hi,

Here is a simple and constrained sketch

günther

[pittsallen]

Hello @KristianLaholm, @jeff_strater, @TrippyLighting, @g-andresen,
.
The excellent advice and counsel is much appreciated.

The sketch was redrawn with special attention to tangencies.

It seems that keeping the sketch as simple as possible is important.

Thanks
Allen Pitts

[TrippyLighting]

---

@pittsallen wrote:

It seems that keeping the sketch as simple as possible is important.

---

Indeed, that is essential!

I usually avoid even making construction lines and accomplish that using constraints.

[pittsallen]

Hello @KristianLaholm, @jeff_strater, @TrippyLighting, @g-andresen, @jhackney, and the Fusion forum,

In posts 'Message 2 of 7' and 'Message 3 of 7' to post marked
The filet/chamfer could not be created...241130
it was noted that the catalyst of the defect which caused the title
error message lay in defects in the Sketch.

The context for this part is as wire management clip,
which when the clip is set using a wood
screw through the screw hole

the clip would allow one to first set the piece, and then with clip set,
the bulb could be pulled down (up in drawing) and shove
the wires into the clip. This is different
from most wire management clips which require
one to juggle the clip, the wires and a screw driver
simultaneously.

Analysis revealed that the bulb would operate with
greater facility if the bulb was moved down and to the right.

An attempt to move the bulb resulted a change in the Sketch
but not in the extrusion.

So, a new design was begun and the revised Sketch
in the existing clip was copied into a Sketch in
a new Component. But when an Extrusion was attempted
the Extrusion tool would not allow for the Profile
to be selected.

So back at Edit Sketch the defect was sought.

A method to troubleshoot the Sketch was devised
that had been learned in
software programming. If the program will not
compile the program is split in half and the two
halves are compiled. If one half compiles and the other
does not the culprit is revealed. And so the
defective half is split and split again,
and, by process of elimination, the fly in the ointment
is located.

In the drawing titled Sketch Troubleshooting
241203 a line was drawn on the part of the Sketch
beginning on the right side of the part.
('green font 'profile light blue back to the
right').
The process was repeated on the left side of
the part Sketch closer to the bulb:
1. profile light blue back to the left
2. profile light blue back to the left
3. profile not light blue back to the left

The process indicates that miscreant is to the
left of 3. profile not light blue back to the left
and to the right of profile light blue back to the
right.

Trimming elements in this area and replacing
those elements resulted in an extrudable
Profile.

Peace.

Allen Pitts

[TrippyLighting]

---

@pittsallen wrote:

...

So back at Edit Sketch the defect was sought.

A method to troubleshoot the Sketch was devised
that had been learned in
software programming..

---

Blue sketch items mean unconstrained elements. Not good!

White points on the end of lines means that the line endpoints aren't constrained. Not good most of the time!

No software development experience is needed!

And you still have overlapping lines of "crap" in your sketch. I can see that in your screenshots.

I have explained all that in my screencast!!!

[g-andresen]

Hi,

Why don't you put this post in the thread to which it belongs in terms of content and in particular because of the screenshots?

günther

[pittsallen]

Hello @g-andresen,

Why don't you put this post in the thread to which it belongs in terms of content and in particular because of the screenshots?

By 'this' it is conjectured that 'this' is the troubleshooting method?

'into the thread to which it belongs...' Which thread is the one to which it (the troubleshooting method?) belongs?
- Failed to make edge blend....241202
- The filet/chamfer could not be created...241130
- Other thread
- New thread

' in particular because of the screenshots'. Which screenshots? The screenshot titled 'Sketch Troubleshooting' 241203?

Thanks.

Allen Pitts

[TrippyLighting]

---

@pittsallen wrote:

Which thread is the one to which it (the troubleshooting method?) belongs?

---

All of your cable clip-related posts should be in a single thread and not be spread out over several threads.