I Need help to create a tapering Sweep?????

[ianhughes7UFVF]

Hi

I want to make sections for an arm bellows. I have the shape I need but the way I made it was using a sweep to get the basic shape then cutting it up and making other sections that I joined with a loft. All quite messy.

I was wondering if its possible to get the sweep to taper to the bottom and then back to the top the otherside.

Or do I need to cut the sketch in half and do one side first and then mirror it.

Or can I do this with a solid loft?

Just not sure of a good neat way of creating the shape I want.

Any help will be great.

Kind Regards

Ian

[davebYYPCU · Accepted solution]

No matter which way you choose, do half and mirror.

Loft by selecting the rails first, then only 2 profiles and half rail sketch should work.

Sweep for that object would not be difficult, over the Loft. 

Sweep is limited one of the profiles and 2 rails.  Talking to the profiles, you would need the inner centre line and another Guide Rail connected to the outer point of the straight line (circled in red - needs an inclined plane, Plane at Angle if you sketch a line to the red circles and project the centre line (red path)).  Setting would be to Stretch but pic shows a Scale version before the edit in the file.

Edit: File updated to use a surface for rails, as the first version was distorting.

Might help...

[ianhughes7UFVF]

Hi

Thank you.

Brilliant as always. That makes alot neater result than I was getting.

Thank you.

Kind Regards

Ian

[johnsonshiue]

Hi Ian,

This might be doable using a Guide Rail Sweep. Please share your attempt. The forum experts can help take a look.

Many thanks!

[ianhughes7UFVF]

Hi

I am having trouble attempting the solution provided. One thing to see it done the other to actually to do it.

Are you after the fusion file?

Kind Regards

Ian

[davebYYPCU]

Two sketches - 

profile and setup for depth of the Path, the other is the Path.

Extrude the path as a surface (or a solid makes no difference, we need body edges)

Plane on Angle - from the profile sketch is used to trim the surface body, (Split > Remove if solid body)

and now the body gives you the Path, and the Guide Rail.

Set the Sweep option to Stretch.

Loft being finicky did not attempt that, needs your original sketches, and figure selections will spit errors until all four selections are completed.

Might help….

P.S. can’t get PM messages anymore.

[johnsonshiue]

Hi @ianhughes7UFVF,

@davebYYPCU already provided the Guide Rail Sweep solution. I personally think this solution is better than Loft.

Many thanks!

[ianhughes7UFVF]

Hi

I reworked and reworked this and tried to sculpt it to but wasnt happy.

I tried to create lofts with rails and finally got the result I was after:

Its extremely neat. I just need to repeat it seven times but I have the concept I was after.

Kind Regards

Ian