Expression syntax to link a part with one rotation axis modified?

[Fruityth1ng]

I'm trying to make two pads connect by simple friction (Split both your hands at ring and middle finger, fit them together, that way .

I'm struggling a lot with getting one angle to express itself on my other object.

If I could "take out" one angle (say, the pitch) out of this code, I'd get the attachment placed and rotated the way I need it:

Code: Select all

Ass_h_Left.Placement * LCS_Top_Bracket.Placement * AttachmentOffset * LCS_Mid.Placement ^ -1

Screenshot 2023-09-16 at 16.42.02.png (86.43 KiB) Viewed 385 times

Would anyone know how to modify this expression?

Here they are: I'm trying to cut out the blue thing halfway and the pink thing, too.

Screenshot 2023-09-16 at 16.44.35.png (219.92 KiB) Viewed 385 times

Many thanks!

[onekk]

...

Hello.

See Maybe:

http://forum.freecadweb.org/viewtopic.php?f=3&t=2264

It is not clear what assembly Wb you are trying to use (and what version it is) and what version of FreeCAD you are targeting.

So it is difficult to give an appropriate answer, (LCS should lead to think you are using ASM4, but...)

Regards

Carlo D.

[Fruityth1ng]

Ah, my apologies, I'm using the latest version of freecad, and the Assembly 4 workbench, it sounded like it was the latest one so I went with that.

Does the expression syntax change per workbench?

The code I pasted/posted is what the ASM4 workbench auto generates, and I noticed it could be modified. I'm wondering if it's possible to knock one euler angle out - and I thought perhaps here someone would know.

Thank you

[forte]

Maybe so ?

https://youtu.be/a-rPb7UTmUk

phpBB [video]

[Fruityth1ng]

Thank you!
I'll see if I can reach the value of this measure with an expression, much obliged!

[onekk]

Ah, my apologies, I'm using the latest version of freecad, and the Assembly 4 workbench, it sounded like it was the latest one so I went with that.
...

Latest is telling nothing, the link I've posted describe the correct procedure to post a useful FreeCAD info.

It is hard to detect a problem (if there is any) without these info.

Regards

Carlo D.