Fillet too long

[John F]

I'm trying to create a fillet on a single edge, but it it extending along the whole edge of the part; I only want it on the edge specified. I'm using part design.

My version info:

OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.14575 (Git)
Build type: Release
Branch: master
Hash: a624fee2c27bbbb869df6a8ce40438953a282a8c
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: English/UnitedStates (en_US)

For the attached part, the offending fillet is named "Fillet too long".

Lid Wedge Test.FCStd

(290.56 KiB) Downloaded 17 times

How can I limit a fillet to only the edge(s) specified in the fillet parameters?

Thank you.

[chrisb]

How can I limit a fillet to only the edge(s) specified in the fillet parameters?

You can't. You have to change the model; to be more precise: the sequence of the modeling steps.

[GeneFC]

One way is to add a very tiny extension to the "stop" object. Don't change that operation or your model will probably explode. Rather, add an extra pad at the end of the tree. Remove the "Fillet too long" first.

I added an extension of 0.0001 inches, and the fillet then worked as desired. That amount of adjustment will most likely not affect the utility of the final model.

Some sort of real interruption is needed to stop the fillet, not just a visible seam. This approach will not always work right, so you may need to experiment.

Gene

[freecad-heini-1]

I'm trying to create a fillet on a single edge, but it it extending along the whole edge of the part; I only want it on the edge specified. I'm using part design.

My version info:

OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.14575 (Git)
Build type: Release
Branch: master
Hash: a624fee2c27bbbb869df6a8ce40438953a282a8c
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: English/UnitedStates (en_US)

For the attached part, the offending fillet is named "Fillet too long".

Lid Wedge Test.FCStd

How can I limit a fillet to only the edge(s) specified in the fillet parameters?

Thank you.

Pleaase have a look here:
https://forum.freecadweb.org/viewtopic. ... 50#p258650
https://forum.freecadweb.org/viewtopic. ... 63#p258163

[John F]

Thank you everyone for the suggestions.

[John F]

You can't. You have to change the model; to be more precise: the sequence of the modeling steps.

Could you be a little more specific. I created a simpler test part:

simple fillet.FCStd

(20.12 KiB) Downloaded 12 times

I created the center first, and than the 2 ends, and I still get a fillet along the entire edge of the part, no matter which edge I select.

I'm not seeing how changing the sequence makes a difference? The sequence is the order displayed in the Combo view->model?

[bejant]

Hi John F, and welcome! If you want to Fillet the center section you have to do that before creating the end sections.

20181021a-SimpleFillet.png (7.36 KiB) Viewed 460 times

20181021a-SimpleFillet.fcstd

(29.24 KiB) Downloaded 11 times

This method makes your model a bit more fragile because deleting the Fillet breaks the model. Usually we would save Fillets and Chamfers for the end of the model, but sometimes we can't do that.

Not what you asked, but in your model the last Pad goes through the entirety of the first Pad. That's not a good modelling method, because even if you Filleted the center portion, that last Pad would fill in the newly created Fillet. Instead, I made another Sketch (the one on the right in the image) and used Sketcher > Carbon Copy to copy the contents of the first Sketch into the second.

Does that help?

OS: Ubuntu 18.04.1 LTS
Word size of OS: 32-bit
Word size of FreeCAD: 32-bit
Version: 0.18.14893 (Git)
Build type: Release
Branch: master
Hash: b8c50dc0f93410d1a8009a162385b50107c301ec
Python version: 2.7.15rc1
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)

[John F]

Makes sense.

Thank you for the help.