Spherical Knurl

Post here for help on using FreeCAD's graphical user interface (GUI).
Forum rules
and Helpful information
IMPORTANT: Please click here and read this first, before asking for help

Also, be nice to others! Read the FreeCAD code of conduct!
mnew
Posts: 2
Joined: Tue May 24, 2022 4:45 am

Spherical Knurl

Post by mnew »

Hi all,

I'm trying to create a knurl on the surface of a sphere based on an icosahedral groove. To do this, I created a sphere and I need to run grooves about a few different datum lines. When I go to make the second groove, my computer exudes heat for about 10 minutes then eventually FreeCAD draws some lines across the surface of the sphere (i.e. the groove doesn't actually eliminate material from the sphere). I'm a bit stuck here, any help appreciated.

When I leave the second groove in the FCStd file, the size skyrockets to 2 MB, so I can't attach it. In the attached, add a groove of Sketch XZSlots2 about DatumLine001. This should exhibit the behavior I describe above.
Attachments
KnurledSphere.FCStd
(149.87 KiB) Downloaded 25 times
User avatar
M4x
Veteran
Posts: 1472
Joined: Sat Mar 11, 2017 9:23 am
Location: Germany

Re: Spherical Knurl

Post by M4x »

Welcome.to the forum!

Please have a look at the big red banner at the top and provide your full FreeCAD information.

Thanks!
mnew
Posts: 2
Joined: Tue May 24, 2022 4:45 am

Re: Spherical Knurl

Post by mnew »

M4x wrote: Tue May 24, 2022 10:13 pm Welcome.to the forum!

Please have a look at the big red banner at the top and provide your full FreeCAD information.

Thanks!
Info isn't working for me. I can tell you that I'm on v0.19.3 for OSX.
Attachments
Screen Shot 2022-05-24 at 9.24.31 PM.png
Screen Shot 2022-05-24 at 9.24.31 PM.png (65.59 KiB) Viewed 1050 times
User avatar
M4x
Veteran
Posts: 1472
Joined: Sat Mar 11, 2017 9:23 am
Location: Germany

Re: Spherical Knurl

Post by M4x »

I've never seen this error before. @chrisb you're on a Mac too if I recall correctly. Have you seen this error before?
User avatar
hammax
Veteran
Posts: 1985
Joined: Thu Jan 19, 2017 5:03 pm
Location: Ammersee DE

Re: Spherical Knurl

Post by hammax »

... KISS in PartWB:

K_Sphere.PNG
K_Sphere.PNG (54.74 KiB) Viewed 951 times
Attachments
KnurledSphere_4.FCStd
FC.20
(39.91 KiB) Downloaded 13 times
KnurledSphere_3.FCStd
FC.20
(47.53 KiB) Downloaded 13 times
KnurledSphere.FCStd
FC.20_28886
(28.84 KiB) Downloaded 12 times
Last edited by hammax on Wed May 25, 2022 2:11 pm, edited 1 time in total.
User avatar
papyblaise
Veteran
Posts: 7867
Joined: Thu Jun 13, 2019 4:28 pm
Location: France

Re: Spherical Knurl

Post by papyblaise »

I'm modest, I do grove after grove, on a half sphere and end up with a Mirror, which I don't know how to do in PD Wb
Attachments
KnurledSphere1.FCStd
(87.72 KiB) Downloaded 13 times
KnurledSphere1.JPG
KnurledSphere1.JPG (53.85 KiB) Viewed 912 times
chrisb
Veteran
Posts: 53919
Joined: Tue Mar 17, 2015 9:14 am

Re: Spherical Knurl

Post by chrisb »

M4x wrote: Wed May 25, 2022 8:53 am Have you seen this error before?
No. I don't have the file mentioned in the error message. in my 0.20 installation. I recommend to clean the config files, and perhaps the whole directory.
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
edwilliams16
Veteran
Posts: 3106
Joined: Thu Sep 24, 2020 10:31 pm
Location: Hawaii
Contact:

Re: Spherical Knurl

Post by edwilliams16 »

No errors. Second groove is slow... Passes Geometry check - slow.
Screen Shot 2022-05-25 at 8.16.26 AM.png
Screen Shot 2022-05-25 at 8.16.26 AM.png (61.61 KiB) Viewed 835 times

Code: Select all

[code]
OS: macOS High Sierra (10.13)
Word size of FreeCAD: 64-bit
Version: 0.20.28909 (Git)
Build type: Release
Branch: master
Hash: 6beef68ae1
Python 3.9.12, Qt 5.12.9, Coin 4.0.0, OCC 7.5.3
Locale: C/Default (C)
Installed mods: 
  * Curves 0.3.0
  * DynamicData 2.45.0
  * fasteners 0.3.40
  * fcgear 1.0.0
  * Help 1.0.0-alpha
  * lattice2 1.0.0
  * MeshRemodel 1.8919.0
  * toSketch
[/code]
User avatar
Kunda1
Veteran
Posts: 13434
Joined: Thu Jan 05, 2017 9:03 pm

Re: Spherical Knurl

Post by Kunda1 »

Alone you go faster. Together we go farther
Please mark thread [Solved]
Want to contribute back to FC? Checkout:
'good first issues' | Open TODOs and FIXMEs | How to Help FreeCAD | How to report Bugs
User avatar
hammax
Veteran
Posts: 1985
Joined: Thu Jan 19, 2017 5:03 pm
Location: Ammersee DE

Re: Spherical Knurl

Post by hammax »

... I understand, it must be FreeCAD on the BBQ screen on heavy load when "knurling".
I think the cutting task is the showstopper.
Here another trial.


K_Sphere_5.PNG
K_Sphere_5.PNG (61.89 KiB) Viewed 732 times
Attachments
KnurledSphere_5.FCStd
FC.20 28886
(24.39 KiB) Downloaded 15 times
Post Reply