topic Re: relation in 3D Part & Assembly Design

relation

MA_10759611 — Tue, 30 Jan 2024 14:31:50 GMT

CREO RELATIONS.

I have a frame, let's say 500 x 350 (extruded) with a depth of 36 mm.

There is a water cooling channel running across the frame, as shown in the image below. How can I make the water cooling channel change its pitch according to the frame size? For example, if I make the frame 350 x 350, the water cooling channel collapses on itself due to the number of channels overlapping the frame size.

Re: relation

MartinHanak — Tue, 30 Jan 2024 15:47:53 GMT

Hi,

please provide following information:

picture showing dimension scheme for section located on 500 x 350 frame
picture showing dimension scheme for section located on 350 x 350 frame

What Creo release do you use?

Re: relation

MA_10759611 — Tue, 30 Jan 2024 15:53:46 GMT

Re: relation

kdirth — Tue, 30 Jan 2024 16:20:00 GMT

Are you looking for something like this? This is controlled by constraints, no relations needed, to keep the spacing even.

Re: relation

MA_10759611 — Tue, 30 Jan 2024 16:25:02 GMT

Yes, thats how i did it but when i change the frame size to 350 x 350 the loops will overlape each another as the frame size is small to not fit the loop circuit. What i am trying to do is to make a relation where when i can shrink the frame size the pitch of the water cooling channel changes to 1 from the center line.

Re: relation

kdirth — Tue, 30 Jan 2024 16:43:30 GMT

both images are the same model and same sketch. I only changed the base width from 350 to 500. Making the horizontal lines equal maintains a constant pitch, whatever the width. Here it is at a width of 1000:

If you want to change the number of loops and the pitch based on the width, that is a more complicated design that would require relations and most likely patterns.

Re: relation

tbraxton — Tue, 30 Jan 2024 17:58:58 GMT

If you study this video by @DaveMartin on patterns, it will reveal some options to handle this type of design.

(1) Creo Parametric - Patterns - Dimension Patterns with Part-Level Relations - YouTube

Re: relation

MartinHanak — Wed, 31 Jan 2024 07:22:12 GMT

Hi,

unfortunately you did not understand me.

Imagine following path and its dimension scheme.

I asked you to fill following table.