Custom thread in hole feature
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Custom thread in hole feature
Hi,
I'm using FreeCAD 0.20 (dev) and I found extremely useful the new addition to make threaded holes using the hole tool.
However, I found that the tool only allow you to customize the clearance, but not the pitch of the thread.
Instead, using the fasters external workbench, threads can be customized selecting custom diameter and pitch.
Is a more detailed customization of the thread using the hole tool in progress?
Thank you,
Alessandro
I'm using FreeCAD 0.20 (dev) and I found extremely useful the new addition to make threaded holes using the hole tool.
However, I found that the tool only allow you to customize the clearance, but not the pitch of the thread.
Instead, using the fasters external workbench, threads can be customized selecting custom diameter and pitch.
Is a more detailed customization of the thread using the hole tool in progress?
Thank you,
Alessandro
Re: Custom thread in hole feature
This is because we follow the ISO or UTC norms. The norms define the pitch of the thread. So the combination of the Profile and the Size setting determine the thread pitch.acominelli wrote: ↑Thu Mar 03, 2022 3:42 pm However, I found that the tool only allow you to customize the clearance, but not the pitch of the thread.
For non-standardized threads, you must/can the PartDesign Helix feature.
Re: Custom thread in hole feature
The ISO norm have tables about preferred diameter and pitches, but allows all kind of it. For example the 2.5mm pitch is pretty everywhere in the machines, were a fine thread is needed and the diameter is bigger then 20mm. Also for repairing this is useful, also something like M39.5x2.5, when the parts are expensive or nonexchangeable (because high sophisticated adapted), and the material thickness is limited.
Greetings
user1234
Re: Custom thread in hole feature
It's not always possible to follow one of the norms. So I think it would make a good feature request to have diameter and pitch be exposed to the properties. There could be
- A special entry in the list where these can be added.
- The selected values are only initial preset values.
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
Re: Custom thread in hole feature
In many CADs there is a category named custom, where you can add your diameter, pitch and cut angle and cut depth.Just said, this will be mainly not for printing (real threads), but for the drawings and the simplified 3D representation. I use atm not the hole functions, because of the lack of the simplified 3D representation. I solve that with compsolids.
Greetings
user1234
edit
Re: Custom thread in hole feature
By the way, the option to generate threads for holes automatically is really great but can be quite demanding in terms of computer power for larger models. Thus, it would be good to add cosmetic threads as well. Those should be available for bolts too. Since they are not real representations, they are very light and easy to work with.
Here's an older request for this: https://forum.freecadweb.org/viewtopic.php?f=8&t=43104
P.S. It seems that this feature is not mentioned in the release notes for 0.20 yet. Should I add it ?
Here's an older request for this: https://forum.freecadweb.org/viewtopic.php?f=8&t=43104
P.S. It seems that this feature is not mentioned in the release notes for 0.20 yet. Should I add it ?
Re: Custom thread in hole feature
Yes please!
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
Re: Custom thread in hole feature
Done I also uploaded a new picture for the PartDesign Hole article.
Last edited by NewJoker on Fri Mar 04, 2022 3:32 pm, edited 1 time in total.
Re: Custom thread in hole feature
Must be getting old I am confused...
Do I understand correctly that there is a way of adding "cosmetic" threads to the holes and bolts?
or are you asking for this feature to be added?
I would love to have "lightweight" cosmetic representation of threads in my designs
Do I understand correctly that there is a way of adding "cosmetic" threads to the holes and bolts?
or are you asking for this feature to be added?
I would love to have "lightweight" cosmetic representation of threads in my designs
Re: Custom thread in hole feature
Unfortunately, there's no such functionality yet. What I added to the release notes refers to true threads generated by the Hole tool.bambuko wrote: ↑Fri Mar 04, 2022 2:44 pm Must be getting old I am confused...
Do I understand correctly that there is a way of adding "cosmetic" threads to the holes and bolts?
or are you asking for this feature to be added?
I would love to have "lightweight" cosmetic representation of threads in my designs
There's even a very old (dating back to 2013) FR related to cosmetic threads on GitHub: https://github.com/FreeCAD/FreeCAD/issues/5567