Toolpath computation takes forever
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- Posts: 541
- Joined: Fri Aug 26, 2016 9:07 pm
- Location: Munich - Gemany
Toolpath computation takes forever
Hello,
I'm creating a fixture by an HDPE plate, but FreeCAD doesn't want to collaborate with me.
After selecting just three slots for a pocket operation (spiral) FreeCAD takes three minute to compute that simple paths (i.e. around a minute for every circular slot.)
In this conditions the program is unusable...
What I'm doing wrong?
(I avoided to select all of the twelve circular slots to not stay all day in front of the monitor)
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OS: Ubuntu 16.04.7 LTS (XFCE/xfce)
Word size of FreeCAD: 64-bit
Version: 0.20.26720 (Git) AppImage
Build type: Release
Branch: (HEAD detached at 7bca26e)
Hash: 7bca26e7c14d4d43374ff7e0c8582735b249cbfd
Python version: 3.9.9
Qt version: 5.12.9
Coin version: 4.0.0
OCC version: 7.5.3
Locale: English/United States (en_US)
I'm creating a fixture by an HDPE plate, but FreeCAD doesn't want to collaborate with me.
After selecting just three slots for a pocket operation (spiral) FreeCAD takes three minute to compute that simple paths (i.e. around a minute for every circular slot.)
In this conditions the program is unusable...
What I'm doing wrong?
(I avoided to select all of the twelve circular slots to not stay all day in front of the monitor)
---------------------------------------------------
OS: Ubuntu 16.04.7 LTS (XFCE/xfce)
Word size of FreeCAD: 64-bit
Version: 0.20.26720 (Git) AppImage
Build type: Release
Branch: (HEAD detached at 7bca26e)
Hash: 7bca26e7c14d4d43374ff7e0c8582735b249cbfd
Python version: 3.9.9
Qt version: 5.12.9
Coin version: 4.0.0
OCC version: 7.5.3
Locale: English/United States (en_US)
- Attachments
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- Mini-FixturePlate 1.0-milling.FCStd
- (60.94 KiB) Downloaded 25 times
Re: Toolpath computation takes forever
I tried this with a bit newer version (27463) and I saw very long times; not three minutes, but at least one minute.
I just compiled and tried again. This time the process was almost instant.
OS: Windows 7 Version 6.1 (Build 7601: SP 1)
Word size of FreeCAD: 64-bit
Version: 0.20.27538 (Git)
Build type: Release
Branch: Master
Hash: 6cd68bf644ab65e4ecf53bfe2f619c5096d445af
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.3
Locale: English/United States (en_US)
Gene
I just compiled and tried again. This time the process was almost instant.
OS: Windows 7 Version 6.1 (Build 7601: SP 1)
Word size of FreeCAD: 64-bit
Version: 0.20.27538 (Git)
Build type: Release
Branch: Master
Hash: 6cd68bf644ab65e4ecf53bfe2f619c5096d445af
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.3
Locale: English/United States (en_US)
Gene
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- Posts: 541
- Joined: Fri Aug 26, 2016 9:07 pm
- Location: Munich - Gemany
Re: Toolpath computation takes forever
Translated in human language?
Do you have ani trick for me?
Do you have ani trick for me?
Re: Toolpath computation takes forever
No tricks, but there have been quite a few changes in Path WB lately.
I would guess that something causing the slowdown got fixed.
Gene
I would guess that something causing the slowdown got fixed.
Gene
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- Posts: 541
- Joined: Fri Aug 26, 2016 9:07 pm
- Location: Munich - Gemany
Re: Toolpath computation takes forever
Also the helix path operation, when applied to a surface with many circular slots, became super slow...
Re: Toolpath computation takes forever
"Spiral" pockets never worked for me. They either took forever or just produced broken G-Code.
Try "Offset" or "ZigZagOffset".
-- Itai
Try "Offset" or "ZigZagOffset".
-- Itai
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- Posts: 541
- Joined: Fri Aug 26, 2016 9:07 pm
- Location: Munich - Gemany
Re: Toolpath computation takes forever
Nope.
Offset strategy is even worse. It takes a dozen of seconds and then...
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Offset strategy is even worse. It takes a dozen of seconds and then...
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- Posts: 541
- Joined: Fri Aug 26, 2016 9:07 pm
- Location: Munich - Gemany
Re: Toolpath computation takes forever
By setting
use outline = true
step over = 50%
the offset strategy works, but you have to wait a dozen of seconds to get the final result after pressing "Ok"
Not a big problem, but... (see following post)
use outline = true
step over = 50%
the offset strategy works, but you have to wait a dozen of seconds to get the final result after pressing "Ok"
Not a big problem, but... (see following post)
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- Posts: 541
- Joined: Fri Aug 26, 2016 9:07 pm
- Location: Munich - Gemany
Re: Toolpath computation takes forever
After adding the remaining circular slots the computation time grows in a quadratic manner.
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Unusable...
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Unusable...
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- Posts: 541
- Joined: Fri Aug 26, 2016 9:07 pm
- Location: Munich - Gemany
Re: Toolpath computation takes forever
Maybe my memory is not so good, but seems to me that the old version of FreeCAD was way faster!
As pointed by GeneFC, probably there is a problem in the new code of version 0.20.
As pointed by GeneFC, probably there is a problem in the new code of version 0.20.