Step Files Very Slow

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!
Post Reply
smcross90
Posts: 3
Joined: Sun May 17, 2020 4:27 pm

Step Files Very Slow

Post by smcross90 »

Hi All,

I am having issues with FreeCAD running extremely slow when importing step files.
I have attached one of the files that gives me the most grief. The bearing takes 5 - 10 minutes to import.

Doesnt get much better if I save it as a freecad file, and try to use it in a design, or open it on its own.

What can I do to speed it up?

FreeCAD Info
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.4 (GitTag)
Build type: Release
Branch: releases/FreeCAD-0-18
Hash: 980bf9060e28555fecd9e3462f68ca74007b70f8
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)

Computer Info
Ram: 8GB
Processor: Intel(R) Core(TM) i5-4300U CPU @1.9GHz 2.50GHz
Attachments
1_8 ID 3_8 OD.step
(29.48 KiB) Downloaded 31 times
chrisb
Veteran
Posts: 53939
Joined: Tue Mar 17, 2015 9:14 am

Re: Step Files Very Slow

Post by chrisb »

Retry with 0.19, your file loads here in less than a second (1,4 GHz Intel Core i5).

OS: macOS High Sierra (10.13)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.21093 (Git)
Build type: Release
Branch: master
Hash: 31bb4d84b92bc587bd79912dd15e132713610773
Python version: 3.8.2
Qt version: 5.12.5
Coin version: 4.0.0
OCC version: 7.4.0
Locale: C/Default (C)
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
smcross90
Posts: 3
Joined: Sun May 17, 2020 4:27 pm

Re: Step Files Very Slow

Post by smcross90 »

Just downloaded .19 and gave it a shot. Still the same problem. Maybe my computer just sucks.

OS: Windows 10 (10.0)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.21049 (Git)
Build type: Release
Branch: master
Hash: 9c27f1078e5ec516fe882aac1a27f5c6c6174554
Python version: 3.8.2
Qt version: 5.12.5
Coin version: 4.0.0
OCC version: 7.4.0
Locale: English/United States (en_US)
User avatar
mike_262
Posts: 21
Joined: Fri Jan 12, 2018 5:23 am
Location: Flyover U.S.A.

Re: Step Files Very Slow

Post by mike_262 »

Check your Preferences:
Edit >> Preferences >> Part Design >> Shape View
If you change the Tessellation settings to too small a value it will slow down the loading of models and display refresh times. I was messing around with these numbers to smooth out the display of curves on small objects and got FreeCAD to slow to a crawl!
I'm using 5.000% and 2.00 degrees which gives a quick loading and refresh for most of my purposes.
smcross90
Posts: 3
Joined: Sun May 17, 2020 4:27 pm

Re: Step Files Very Slow

Post by smcross90 »

That helped tremendously, thank you. I had it at .5%. Still runs slow once loaded, so I will play with the setting and see if I can get it to run faster.
User avatar
cederom
Posts: 2
Joined: Sun Mar 13, 2022 7:13 pm
Contact:

Re: Step Files Very Slow

Post by cederom »

mike_262 wrote: Sun May 17, 2020 6:30 pm Check your Preferences:
Edit >> Preferences >> Part Design >> Shape View
If you change the Tessellation settings to too small a value it will slow down the loading of models and display refresh times. I was messing around with these numbers to smooth out the display of curves on small objects and got FreeCAD to slow to a crawl!
I'm using 5.000% and 2.00 degrees which gives a quick loading and refresh for most of my purposes.
THANK YOU MIKE! That helped a lot! :-)

Still it looks that the same release of FreeCAD 0.19 on Windows imports STEP 84373189403289x times faster than on FreeBSD with default settings of very high quality :-(

Any other hints on how to make it work smoothly on Open Source OS? :-)
User avatar
thomas-neemann
Veteran
Posts: 11801
Joined: Wed Jan 22, 2020 6:03 pm
Location: Osnabrück DE 🇩🇪
Contact:

Re: Step Files Very Slow

Post by thomas-neemann »

smcross90 wrote: Sun May 17, 2020 4:48 pm ..
I would do a test with an ubuntu live cd system and appimage 20.0. then it would have to be loaded with your hardware under 1 second. that would be an indication of a damaged windows
Gruß Dipl.-Ing. (FH) Thomas Neemann

https://www.youtube.com/@thomasneemann5 ... ry=freecad
Post Reply