topic Re: Cannot remove origin coincidence in Fusion Support Forum

Cannot remove origin coincidence

Anonymous — Sun, 24 Dec 2017 19:34:41 GMT

Hi -

New to Fusion 360 & 3D modeling so please forgive if its a monkey question - but I've tried everything, including throwing my computer through the window and yelling at my cat.

Whenever I create a sketch shape - say a rectangle, that's centered at the origin, I can't move it. I know that Fusion 360 automatically creates an origin coincidence, which I should be able to right-click on and 'Delete Coincidence' (I've seen it in tutorials and such). However I do not get this option. I've right clicked on everything and deleted it piece by piece until there's nothing left, never got the option to delete coincidence.

Would really appreciate any help! can't seem to get past this hurdle : (

Thank you!

Andrey

Re: Cannot remove origin coincidence

TrippyLighting — Sun, 24 Dec 2017 22:06:00 GMT

When selecting that origin point you need to hold the left mouse button down for a second. This will bring up another panel, which will allow you to select one of several entities that might be stacked on top of each other. But breaking the coincided constraint to the origin is still cumbersome, so if you don't want the rectangle constrained to the origin, then don't create it there 😉

Re: Cannot remove origin coincidence

Anonymous — Sun, 24 Dec 2017 22:52:43 GMT

Thanks - I had tried to use the left mouse button and selected all the options in turn, but still never got the coincident to origin constraint to show up. I removed it once somehow, purely by accident, and was never able to recreate it. It's absolutely infuriating. Starting at the origin makes it a lot easier to move the sketch into the right position later, so having the option to start there would be awesome, if it weren't impossible to move things from there! Is there a place to yell (I mean politely provide feedback : ) to a Fusion 360 product manager somewhere, so my cat can have a break? Or is it a lost cause?

Thanks,

Andrey

Re: Cannot remove origin coincidence

TrippyLighting — Mon, 25 Dec 2017 00:23:56 GMT

I don’t quite understand why you would want to create a sketch starting at the origin if you don’t want it there. Could you make a screencast and sho3 what you want to achieve ?

I believe you Are not yet fully aware of all the tools you can use to achieve the desired outcome, but to suggest a better workflow I’d need a better understanding of what you are trying to achieve.

Re: Cannot remove origin coincidence

michaelwilkinsonP94CN — Sun, 13 Jan 2019 07:03:40 GMT

If you try to move an object that is constrained to origin, there should just be a checkbox in the move dialog called "Break Constraint", which then allows you to move the object...

Re: Cannot remove origin coincidence

TheCADWhisperer — Sun, 13 Jan 2019 12:53:46 GMT

@Anonymous wrote:

I know that Fusion 360 automatically creates an origin coincidence, which I should be able to right-click on and 'Delete Coincidence' (I've seen it in tutorials and such). However I do not get this option.

Hover your mouse over the point.

You should get a Coincident Constraint Glyph.

You can then delete the constraint.

This works for any coincident constraint.

If you have trouble doing this with your file - then File>Export and Attach it here and I will create video using your actual geometry.

Re: Cannot remove origin coincidence

kreatronik — Sat, 05 Dec 2020 22:23:42 GMT

I have the same problem 3 years later.
Right click and "Delete Coincident" doesn't remove the binding of the sketch part to the origin.
Also, when I draw an object and then drag one point or line to the origin it get's fixed to it leaving the user with the same problem.

Is there any solution that came up in the meantime?

Re: Cannot remove origin coincidence

kreatronik — Sat, 05 Dec 2020 22:29:18 GMT

I didn't know that the screencast has to be "Inserted" manually...

Re: Cannot remove origin coincidence

TheCADWhisperer — Sat, 05 Dec 2020 22:31:47 GMT

@kreatronik wrote:
I have the same problem 3 years later.
Right click and "Delete Coincident" doesn't remove the binding of the sketch part to the origin.

Sure it will, but you have to Left click it first to select it, then Right click and then Left click Delete.

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

Re: Cannot remove origin coincidence

TheCADWhisperer — Sat, 05 Dec 2020 22:33:43 GMT

Also, there is no need to duplicate the circles or especially the dimensions.

If you are duplicating work - you are working too hard.

Re: Cannot remove origin coincidence

TheCADWhisperer — Sat, 05 Dec 2020 22:34:46 GMT

Too late now, but it would have probably been best to start a new thread discussion and link back to this one for reference.

Re: Cannot remove origin coincidence

TheCADWhisperer — Sat, 05 Dec 2020 22:37:36 GMT

And that green line color indicates that it is Fixed.

I recommend never use Fixed Constraint.

This is a completely different topic than the original post.

To Unfix select the Fix/Unfix constraint and click the line again.

Re: Cannot remove origin coincidence

kreatronik — Sun, 06 Dec 2020 17:16:06 GMT

Yes it was green because I thought it might be fixed and tried to unfix it. Unaware that a fixation is indicated green.
But after I opened up Fusion today after unfixing the line I could move it around again.
But that didn't work yesterday after I removed the 2 coincidents as described earlier in the thread.

Also each of the circles have a slightly different diameter. Otherwise I would have used the pattern tool.

Re: Cannot remove origin coincidence

TheCADWhisperer — Sun, 06 Dec 2020 17:39:10 GMT

@kreatronik wrote:
Also each of the circles have a slightly different diameter. Otherwise I would have used the pattern tool.

Oops, I didn't notice the different diameters.

Re: Cannot remove origin coincidence

rwetzler — Thu, 25 Mar 2021 14:16:25 GMT

One way I found a solution to break entities from the origin is to attempt to drag, e.g. line, circle, etc. away from the origin. This will cause an associated glyph to show which you can then delete. What is weird is sometimes you can right click or hover over the origin and it will show all the glyphs, tied to it, other times nothing, truly maddening. I just happened across the drag solution by accident. You will still always have the purple dot at the origin but a least your entities are now free to move/rotate as you want.

Re: Cannot remove origin coincidence

crpikeinportland — Sun, 16 Mar 2025 02:31:14 GMT

It sometimes work, but other times they just don't show up.

Re: Cannot remove origin coincidence

jerrytomson — Sun, 16 Mar 2025 08:27:24 GMT

It sounds like Fusion 360 is fully constraining your sketch, preventing movement. Here are some things to check:

Troubleshooting Steps

Check Constraints:
- Click on the "Show Constraints" icon in the Sketch menu.
- Look for the coincident constraint (small circle icon) at the origin.
- If you can't delete it, it may be fully constrained by other rules.
Remove Other Constraints:
- Try deleting horizontal/vertical, midpoint, or dimension constraints first.
- Then, see if "Delete Coincidence" becomes available.
Check Sketch Dimensions:
- If you've applied dimensions to the rectangle (e.g., setting distances from the origin), it locks the position.
- Try deleting the dimensions first.
Use Drag to Test Constraints:
- Click and drag your rectangle. If it doesn’t move, it's fully constrained.
- If it moves a little but stays fixed at the origin, it still has a coincidence constraint.

If none of these work, you might be dealing with a bug or software issue. A restart or creating a new sketch might help.

Let me know if this solves it! 😊

Re: Cannot remove origin coincidence

jerrytomson — Sun, 16 Mar 2025 08:30:10 GMT

It sounds like Fusion 360 is fully constraining your sketch, preventing movement. Here are some things to check:

Troubleshooting Steps

Check Constraints:
- Click on the "Show Constraints" icon in the Sketch menu.
- Look for the coincident constraint (small circle icon) at the origin.
- If you can't delete it, it may be fully constrained by other rules.
Remove Other Constraints:
- Try deleting horizontal/vertical, midpoint, or dimension constraints first.
- Then, see if "Delete Coincidence" becomes available.
Check Sketch Dimensions:
- If you've applied dimensions to the rectangle (e.g., setting distances from the origin), it locks the position.
- Try deleting the dimensions first.
Use Drag to Test Constraints:
- Click and drag your rectangle. If it doesn’t move, it's fully constrained.
- If it moves a little but stays fixed at the origin, it still has a coincidence constraint.

If none of these work, you might be dealing with a bug or software issue. A restart or creating a new sketch might help.

Re: Cannot remove origin coincidence

TheCADWhisperer — Sun, 16 Mar 2025 12:34:30 GMT

@crpikeinportland

In that case -

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

Re: Cannot remove origin coincidence

crpikeinportland — Sun, 16 Mar 2025 14:42:15 GMT

I might have located the bug. When you constrain the corner of a rectangle, for example, to the origin, then Fusion will sometimes grab the origin of a different sketch. So you have constrained to a projection that you never intended to have in your drawing. For some reason, fusion is very resistant to showing this projection. So you can right click on the origin for hours and never see it. If you want I can do an experiment and try to recreate this series of events.