Fasteners workbench based on screw-maker

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mbordoni
Posts: 5
Joined: Sat Sep 10, 2022 4:54 pm

Re: Fasteners workbench based on screw-maker

Post by mbordoni »

Please double check metric bolts.
When 3d printed they are to small for corresponding Screws.
On the other side the screws work perfectly with commercially available bolts.

I think It should be implemented a sort of tolerance that could be set for bolts in order to give the needed minimum space between threads.
It would be nice if the thread ptich could also be set in preset bolts and screws.

At last I cannot tell what offset dimension is used for since no modification happens when set (either positive or negative value).
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chrisb
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Re: Fasteners workbench based on screw-maker

Post by chrisb »

Fasteners workbench has such tolerance preferences.
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mbordoni
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Joined: Sat Sep 10, 2022 4:54 pm

Re: Fasteners workbench based on screw-maker

Post by mbordoni »

Found, thanks.
alexu
Posts: 30
Joined: Tue Nov 26, 2019 2:14 pm

Re: Fasteners workbench based on screw-maker

Post by alexu »

Hello,
I am trying to use the PEM Self Clinching Standoffs and I am unable to change the length.

If I change the length in the Data tab of the Combo View a blue check appears next to the object in the Tree view which then disappears when clicking elsewhere, however the 3D view does not change. Selecting "Recompute Object" does not change it either.

Changing the length property works for other objects, just not for the Standoffs. Does anyone know of a workaround?

Code: Select all

OS: Linux Mint 20.1 (X-Cinnamon/cinnamon)
Word size of FreeCAD: 64-bit
Version: 0.21.0.31917 (Git) AppImage
Build type: Release
Branch: master
Hash: 4639283b459f9ff9093e289908cc003db8745b82
Python 3.10.9, Qt 5.15.6, Coin 4.0.0, Vtk 9.1.0, OCC 7.6.3
Locale: English/Canada (en_CA)
Installed mods: 
  * kicadStepUpMod 10.17.1
  * fasteners 0.4.54
  * Curves 0.6.8
  * sheetmetal 0.2.61
  * A2plus 0.4.60k
  * Assembly4 0.12.6
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alex_55
Posts: 62
Joined: Mon May 11, 2020 1:50 am

Re: Fasteners workbench based on screw-maker

Post by alex_55 »

alexu wrote: Thu Mar 02, 2023 7:45 pm Hello,
I am trying to use the PEM Self Clinching Standoffs and I am unable to change the length.
https://github.com/shaise/FreeCAD_FastenersWB/pull/264
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shaise
Posts: 470
Joined: Thu Jun 11, 2015 8:11 am

Re: Fasteners workbench based on screw-maker

Post by shaise »

Thanks Alex!
alexu wrote: Thu Mar 02, 2023 7:45 pm Hello,
I am trying to use the PEM Self Clinching Standoffs and I am unable to change the length.
Its fixed now
alexu
Posts: 30
Joined: Tue Nov 26, 2019 2:14 pm

Re: Fasteners workbench based on screw-maker

Post by alexu »

shaise wrote: Fri Mar 03, 2023 7:26 pm Thanks Alex!
alexu wrote: Thu Mar 02, 2023 7:45 pm Hello,
I am trying to use the PEM Self Clinching Standoffs and I am unable to change the length.
Its fixed now
Thanks guys!

Now I have a question: Is there any documentation on how to add fasteners to the workbench? There are other PEM fasteners that I would like to use.
I've done some looking around but not everything is clear to me.
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Kunda1
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Re: Fasteners workbench based on screw-maker

Post by Kunda1 »

alexu wrote: Wed Mar 08, 2023 1:00 pm Now I have a question: Is there any documentation on how to add fasteners to the workbench? There are other PEM fasteners that I would like to use.
I've done some looking around but not everything is clear to me.
See https://github.com/shaise/FreeCAD_Faste ... -fasteners
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kinghat
Posts: 31
Joined: Wed Oct 14, 2020 11:39 pm

Re: Fasteners workbench based on screw-maker

Post by kinghat »

is it possible to change the thread angle on custom threads? im trying to create large coarse threads that are 3d printing compatible. this requires angles around ~45-50 degrees.

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chrisb
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Re: Fasteners workbench based on screw-maker

Post by chrisb »

I don't think it's possible. Even the data doesn't contain the angle, so it's probably in the Python code.
You can always make the thread yourself using a helix and an appropriate section.
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