Sketcher tutorial

[robcad]

From what I can see I think you are doing exactly the right thing, but just in case here is a gif showing how it should work:

And here is how it does not work under certain conditions.

B-Spline_Exercise_16.gif (336.17 KiB) Viewed 2085 times

B-Spline_Exercise_16.fcstd

(6.14 KiB) Downloaded 75 times

OS: Linux Mint 18.3 Sylvia
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15521 (Git)
Build type: Release
Branch: master
Hash: 6cdeab9c1469a41f24ae5e8fa9091c9bdfbb90db
Python version: 2.7.12
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: German/Germany (de_DE)

[robcad]

For people with problems doing Exercise 16, here is a possible way:

B-Spline_Exercise_16_new.gif (186.54 KiB) Viewed 2083 times

B-Spline_Exercise_16.fcstd

(6.14 KiB) Downloaded 57 times

[paullee]

Read through tutorial, very comprehensive with good examples for ease of understanding.

Just note a type on p.49.
"... horizonta”ol ..."

And for me need more time to understanding Exercise 32 and 33 ... seem a Point-on-Object Constraint should be in 2nd (right hand side) diagram of Exercise 33?

Screenshot from 2019-01-01 11-33-50.png (184.34 KiB) Viewed 2067 times

Screenshot from 2019-01-01 11-34-37.png (191.25 KiB) Viewed 2067 times

[chrisb]

Abdullah, can you have a look at this?

ping

robcad has uploaded his model.

B-Spline_Exercise_16.fcstd

Robcad, do you know which solver you use, Dogleg or Levenberg-Marquardt?

[chrisb]

Thanks for reporting.

Just note a type on p.49.
"... horizonta”ol ..."

That one is fixed, I will look at the others.

[robcad]

Robcad, do you know which solver you use, Dogleg or Levenberg-Marquardt?

I can not answer this. Never changed the solver. Where can I find this setting?

[Rene]

Robcad, do you know which solver you use, Dogleg or Levenberg-Marquardt?

I can not answer this. Never changed the solver. Where can I find this setting?

Edit->Preferences->Sketcher->Sketcher Solver->Show Advanced Solver Control in the Task bar = YES
Task Bar now has a new subsection where you can choose the default Solver.

OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15527 (Git)
Build type: Release
Branch: master
Hash: 70aaf3e95fe2a3f17d43e95a1afe7d903d91b8ae
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: Estonian/Estonia (et_EE)

[jpg87]

I have changed two of the B-spline exercises, because of a possible interference with the endpoint of the B-spline and the origin. Could you please change the French translation?

Hi and happy new year to all.
Sorry for the delay, here is the update of the translation of the tutorial Sketcher of chrisb :

https://www.dropbox.com/s/bbidzyseiit9y ... 4.pdf?dl=0

[chrisb]

Sorry for the delay, here is the update of the translation of the tutorial Sketcher of chrisb :

Thanks again!

[robcad]

Robcad, do you know which solver you use, Dogleg or Levenberg-Marquardt?

Edit->Preferences->Sketcher->Sketcher Solver->Show Advanced Solver Control in the Task bar = YES
Task Bar now has a new subsection where you can choose the default Solver.

I use standard solver DogLeg. Changing the solver did not solve the problem on B-Spline exercise 16.

B-Spline_Exercise_16 + Solver change.gif (726.9 KiB) Viewed 1960 times

B-Spline_Exercise_16.fcstd

(6.12 KiB) Downloaded 62 times

OS: Linux Mint 18.3 Sylvia
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15521 (Git)
Build type: Release
Branch: master
Hash: 6cdeab9c1469a41f24ae5e8fa9091c9bdfbb90db
Python version: 2.7.12
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: German/Germany (de_DE)