Fillets and old iron

[tanderson69]

Just for testing. Works without problems here (PartDesign). But i was expecting errors on the corner (like other CADs) so i the way i model it was a little different (like i do when i see corners like that).

Oh sure, just move the base chamfer away from the problem area It is not specified on the drawing so I guess it is legal. Nice model.

[drmacro]

Agreed, nice.

But, the fillets are not as specified either... .118 vs. .125

One interesting thing is the use of pads for the flange instead of a revolve. Which appears to allow the engine to handle fillets somewhat better.

[tanderson69]

But, the fillets are not as specified either... .118 vs. .125

Yup, I missed that.

One interesting thing is the use of pads for the flange instead of a revolve. Which appears to allow the engine to handle fillets somewhat better.

Can you determine the type of surface output by the revolve? 'planar' 'surface of revolution' etc... That might be a clue on why things fail or succeed.

[user1234]

Oh sure, just move the base chamfer away from the problem area.

I mean the transistion between the straight edge and the big diameter with two radius. But it also works good. I remodel the part. i deleted some mirror bores, else the file is to big.

br
user

done with:

Code: Select all

OS: Debian GNU/Linux 10 (buster) (X-Cinnamon/lightdm-xsession)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.19703 (Git)
Build type: Release
Branch: master
Hash: 6ffef47ee83c7d5bf0e5ad24fde4a869323c7fc7
Python version: 3.7.3
Qt version: 5.11.3
Coin version: 4.0.0a
OCC version: 7.4.0
Locale: English/UnitedStates (en_US)

[user1234]

I mean the other problem zone can done also with an exact straight transition with fillets.

Screenshot2.png (38.65 KiB) Viewed 749 times

Screenshot1.png (19.01 KiB) Viewed 749 times

[tanderson69]

I mean the other problem zone can done also with an exact straight transition with fillets.

That looks close to picture, which is all you can do without proper dimensions. Nice.

[drmacro]

I mean the other problem zone can done also with an exact straight transition with fillets.

That looks close to picture, which is all you can do without proper dimensions. Nice.

Yes, some of the exercises in this text leave a bit to the imagination. I'd love to have the teachers version or the exercise answer supplement.