Assemble two cylinder edges into an apex, then again after changing angle

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
llll
Posts: 173
Joined: Fri Nov 12, 2021 1:56 am

Assemble two cylinder edges into an apex, then again after changing angle

Post by llll »

Assembly is challenging. Please help me achieve this design goal. I will appreciate your help


a) The apex of the cylinders, i.e. the Edges of these cylinders should join at their peak. The edges should form the peak.

b) Angle between Two Objects should be able to change, while keeping symmetry. Then be able to close the peak again.

The only part I managed to get close to was the symmetry.
Making those edges join, and then changing the angle to make them join again while keeping symmetry i dont know.

It's fine if the solution is manual, but if that is case then how do I make one part rotate in place? Lock one edge in the center and rotate around that edge, then drive the parts together to close the gap... << Even that I'm not sure.

I tried sketching a line onto the faces to use a point to point constraint. Did not work for me. Tried this a couple ways..


Hmm if you're good at assembly, show us how its done please
Attachments
cylinder.FCStd
(35.42 KiB) Downloaded 15 times
drmacro
Veteran
Posts: 8974
Joined: Sun Mar 02, 2014 4:35 pm

Re: Assemble two cylinder edges into an apex, then again after changing angle

Post by drmacro »

Why all the extra links and such...way over complicated.

And, what does assembly have to do with it?
Attachments
Example_cylinder_sweep.FCStd
(17.02 KiB) Downloaded 9 times
Snip macro screenshot-092fb4.png
Snip macro screenshot-092fb4.png (88.01 KiB) Viewed 465 times
Star Trek II: The Wrath of Khan: Spock: "...His pattern indicates two-dimensional thinking."
User avatar
Roy_043
Veteran
Posts: 8537
Joined: Thu Dec 27, 2018 12:28 pm

Re: Assemble two cylinder edges into an apex, then again after changing angle

Post by Roy_043 »

I am pretty clueless about what you want to achieve. But the shape you have can be created by just sweeping a single profile along a path. What is your reason for not choosing this more obvious approach?
llll
Posts: 173
Joined: Fri Nov 12, 2021 1:56 am

Re: Assemble two cylinder edges into an apex, then again after changing angle

Post by llll »

drmacro wrote: Wed May 25, 2022 3:14 pm way over complicated.
And, what does assembly have to do with it?
Roy_043 wrote: Wed May 25, 2022 3:19 pm sweeping a single profile along a path. What is your reason for not choosing this more obvious approach?
A brilliant solution already exists!
Thanks for pointing that out
horse blinkers.png
horse blinkers.png (25.09 KiB) Viewed 359 times
The purpose is to get boolean cuts of the intersections.. I'll try this method ... I think it should work
Post Reply