Beginner question. How to create a body around a curved pipe?

[DavidH_D]

Hi all,

Absolute beginner here, so sorry in advance for any stupid questions 😉

I'm trying to create Motorcycle Crash Bar BUMPERS.

Let me explain:

The bike 2 crash bars on the left and 2 on the right.
I would like to create bumpers or sliders to protect from slow speed tip-overs (while doing slow-speed exercises).

I'm attaching a pic from the bike, and sample pictures from the kind of bumpers I would like to make (and 3D print).

To make things extra difficult, the pipes are bend/curved.

My initial workflow was to "design" the pipe, and then try to get a body around it.
I would then remove the pipe and slice the body to get two halves, in which I could incorporate the holes for the bolts, etc.

Would this be the correct workflow?

And... How to I get a body to wrap around the pipe??

Many, many thanks for your help 😉

David

[DavidH_D]

This is a start, but as you can see, it's straight (and ugly, but that be fixed once I know what I'm doing).

I know, there is still an issue with the holes as well 😉

[davebYYPCU]

You need an accurate centre line of the 2 pipes.

Decide where the new part will attach, 

Plane on Path, for an end face or section of the part - sketch.

Sweep this shape along the centre line, 

When you get that far, yell if you get stuck.

Might help…..

[josh.sapp]

If you create a path along the centerline of the section of pipe you are wanting to create your fixture around. You could utilize the pipe function to have the fixture profile follow along the bent pipe.

[DavidH_D]

Dumb of me. 
this is exactly how I traced the pipes. A bit larger and I have indeed the outlines of my piece. Will try this!

little worried about the bends though. They might be too sharp. 

[TheCADWhisperer]

@DavidH_D 

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

[DavidH_D]

Hi!

You mean the one above?

Here it is 😉

[davebYYPCU]

No - the one with the curved pipes.

[DavidH_D]

I think I deleted it, but will check when I get back home 😉

[DavidH_D]

It’s deleted. 😉

[davebYYPCU]

Your not using Fusion to its best functionality.

Use the origin for symmetry, 

Blue articles in sketches should keep you awake at night.

No need for move tool, use extrude options.

Holes in a rectangle block, then use modelling fillets, not sketch fillets.

Not check the text. 

Will demo with curved centre line file, make a new one, because I can’t guess the shape of your pipes.

Might help….

[DavidH_D]

I will first mesure the real tubes. Since I only tried using tubes I made up 😉

[DavidH_D]

all,

in this file there is one of the pipes, with an approximative diameter and curve.

[DavidH_D]

also need to find out how to use the pipe to create the hole in my piece 😉

[DavidH_D]

Arrived here.. What do you think?
Now I need to split it...

[davebYYPCU]

That would be Modify > Combine > Cut.

Cut the block (target) with the Pipe bodies.

Split body with the pipe centre line.

there are no clues where you want the bolts.

Might help...

[DavidH_D]

Thanks! You're right, I need holed for the bolts 😄

Just starting with this. Also waiting for my printer to arrive 😅

[DavidH_D]

💪

[DavidH_D]

Another issue.

For a reason I don't know yet, I'm having difficulties creating a hole in the below plane.
If I use a plane, it get's created somewhere in pace, and if I click on the side of my piece itself, it creates a hole with a little slot in it.
What am I doing wrong?

[DavidH_D]

From the other side, no problem. Bu I need a recess on both sides so the only way to do it was to create a hole in both sides (and hoping they align 😄