topic Re: How best to add these oil passages? in Fusion Design, Validate & Document Forum

How best to add these oil passages?

chris.morrison3C22V — Sat, 06 Dec 2025 20:23:32 GMT

I've drawn a crankshaft and need to add oil passages between the main journals and the rod journals. For each oil passage exit point I've created a construction plane, then a sketch, then added a point at the location that the oil hole exits.

From there I'm not sure of the best way to make the passages. My first shot was to create a new 3-point plane using the two exit points and a random third one, then a sketch on that plane, then a line connecting the two points. Then I used the Pipe tool to create the passage and extended it using a 1.5 factor to get it to pass fully through the rod journal. Then translate that down a little so it fully punches through the main journal radius.

Before I do that all 8 more times, can anyone think of a better process?

Re: How best to add these oil passages?

TheCADWhisperer — Sat, 06 Dec 2025 20:37:58 GMT

@chris.morrison3C22V

Revolve - Cut with a Rectangle.

(or Pipe).

Pipe only requires a centerline.

Re: How best to add these oil passages?

chris.morrison3C22V — Sat, 06 Dec 2025 20:54:08 GMT

That would work if both points were in the same plane and on the centerline of the crankshaft, but they're offset. That's why I was creating a new plane containing both points and then using pipe (or also could rotate a rectangle).

Re: How best to add these oil passages?

TheCADWhisperer — Sat, 06 Dec 2025 21:09:22 GMT

@chris.morrison3C22V

Both techniques I demonstrated will work, but I did not have your geometry to demonstrate - so I made up quick trivial examples.

The easy way is Intersection of Extruded Surfaces to get the compound angle path.

Edit: I just discovered that the Project has been enhanced. Don't need to Extrude the Surfaces anymore.

Re: How best to add these oil passages?

chris.morrison3C22V — Sat, 06 Dec 2025 21:20:22 GMT

Ok I see you had some attachments there that must have been describing what you were intending, but I can't download external files to this PC. Can you point me to a topic where I can see examples online? Thanks,

Re: How best to add these oil passages?

johnsonshiue — Mon, 08 Dec 2025 16:03:27 GMT

Hi Chris,

I think it is doable, but I am sorry I have hard time picturing what exactly you want to do. Please share your file here. The forum experts can help take a closer look.

Many thanks!

Re: How best to add these oil passages?

TheCADWhisperer — Mon, 08 Dec 2025 19:57:49 GMT

@chris.morrison3C22V wrote:
Can you point me to a topic where I can see examples online? Thanks,

https://youtu.be/-7UQt5NP4sM

Re: How best to add these oil passages?

navya_gelli — Mon, 15 Dec 2025 12:18:50 GMT

Hello, @chris.morrison3C22V ,

Did the information provided by @TheCADWhisperer help you and answer your question?

If yes, please click on the "Accept Solution" button on the post(s) that solved your problem. This will assist other community users in finding and benefiting from this information.

If not, please do not hesitate to give an update in this thread so all community members receive an update on the progression of your question, and can suggest next steps that may be helpful for you to achieve what you're looking for.

All the best,

Navya | Community Manager