Bending a Pipe

[Anonymous]

I'm tryign to draw a grab bar using aluminum tubing. In the end, the grab bar will have 4 bends but I am having trouble creating even the first one. I started with a solid extrusion of OD: 1.25in and ID: 1in extruded for 12ft. I then make a sketch plane through the solid extrusion, and sketch a line on the plane tangent to the edge of the pipe. When i use the bend command and select the sketched line (to make it a bend line), no matter what radius or angle i enter, the pipe will not bend and I get an error saying: 

"The attempted operation did not produce a meaningful result. Try with different inputs"

I've tried placing the line at different positions throughout the cross section of the pipe, chaning the angle and radius over a wide range of values, and tried with extruded solid vs swept solid. Nothing has worked.

Any ideas?

It's a simple part but I'll attach the file for convenience.

[Anonymous]

I'm tryign to draw a grab bar using aluminum tubing. In the end, the grab bar will have 4 bends but I am having trouble creating even the first one. I started with a solid extrusion of OD: 1.25in and ID: 1in extruded for 12ft. I then make a sketch plane through the solid extrusion, and sketch a line on the plane tangent to the edge of the pipe. When i use the bend command and select the sketched line (to make it a bend line), no matter what radius or angle i enter, the pipe will not bend and I get an error saying: 

"The attempted operation did not produce a meaningful result. Try with different inputs"

I've tried placing the line at different positions throughout the cross section of the pipe, chaning the angle and radius over a wide range of values, and tried with extruded solid vs swept solid. Nothing has worked.

Any ideas?

It's a simple part but I'll attach the file for convenience.

[Anonymous · Accepted solution]

Make a new plane that is parallel to your XY plane and tangent to the outside surface of the pipe.

Create a sketch on that new plane and draw a line where you want your bend to start.

Now try the bend tools again I think you will be more successful.

It look slike you almost had it right. You are just drawing your bend line on the wrong plane.

[Anonymous · Accepted solution]

Make a new plane that is parallel to your XY plane and tangent to the outside surface of the pipe.

Create a sketch on that new plane and draw a line where you want your bend to start.

Now try the bend tools again I think you will be more successful.

It look slike you almost had it right. You are just drawing your bend line on the wrong plane.

[mcgyvr]

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@Anonymous wrote:

I'm tryign to draw a grab bar using aluminum tubing. In the end, the grab bar will have 4 bends but I am having trouble creating even the first one. I started with a solid extrusion of OD: 1.25in and ID: 1in extruded for 12ft. I then make a sketch plane through the solid extrusion, and sketch a line on the plane tangent to the edge of the pipe. When i use the bend command and select the sketched line (to make it a bend line), no matter what radius or angle i enter, the pipe will not bend and I get an error saying: 

"The attempted operation did not produce a meaningful result. Try with different inputs"

I've tried placing the line at different positions throughout the cross section of the pipe, chaning the angle and radius over a wide range of values, and tried with extruded solid vs swept solid. Nothing has worked.

Any ideas?

It's a simple part but I'll attach the file for convenience.

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Don't use bend part...

Simply do a sweep.. This would be done with 2 sketches.. 1 the profile of the bar (probably just a circle) and then the second sketch is the path the whole bar follows or the shape of the whole grab bar.. Then simply sweep to create it.

http://knowledge.autodesk.com/support/inventor-products/learn-explore/caas/CloudHelp/cloudhelp/2015/ENU/Inventor-Help/files/GUID-CECD103F-A572-423D-BC9E-2DDFD0FB239A-htm.html

[mcgyvr]

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@Anonymous wrote:

I'm tryign to draw a grab bar using aluminum tubing. In the end, the grab bar will have 4 bends but I am having trouble creating even the first one. I started with a solid extrusion of OD: 1.25in and ID: 1in extruded for 12ft. I then make a sketch plane through the solid extrusion, and sketch a line on the plane tangent to the edge of the pipe. When i use the bend command and select the sketched line (to make it a bend line), no matter what radius or angle i enter, the pipe will not bend and I get an error saying: 

"The attempted operation did not produce a meaningful result. Try with different inputs"

I've tried placing the line at different positions throughout the cross section of the pipe, chaning the angle and radius over a wide range of values, and tried with extruded solid vs swept solid. Nothing has worked.

Any ideas?

It's a simple part but I'll attach the file for convenience.

---

Don't use bend part...

Simply do a sweep.. This would be done with 2 sketches.. 1 the profile of the bar (probably just a circle) and then the second sketch is the path the whole bar follows or the shape of the whole grab bar.. Then simply sweep to create it.

http://knowledge.autodesk.com/support/inventor-products/learn-explore/caas/CloudHelp/cloudhelp/2015/ENU/Inventor-Help/files/GUID-CECD103F-A572-423D-BC9E-2DDFD0FB239A-htm.html

[Anonymous]

Thanks for the suggestion!

I guess I should explain, I had actually already created this part using a sweep. This bend porblem I was trying to solve was actually just for a test to see if inventor would deform the solid during a bend as would happen in real life. Using the sweep function the cross-section of the tube remains constant around a bend. 

[Anonymous]

Thanks for the suggestion!

I guess I should explain, I had actually already created this part using a sweep. This bend porblem I was trying to solve was actually just for a test to see if inventor would deform the solid during a bend as would happen in real life. Using the sweep function the cross-section of the tube remains constant around a bend. 

[mcgyvr]

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@Anonymous wrote:

Thanks for the suggestion!

a test to see if inventor would deform the solid during a bend as would happen in real life. Using the sweep function the cross-section of the tube remains constant around a bend. 

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Yeah.. Inventor won't deform as in real life.

[mcgyvr]

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@Anonymous wrote:

Thanks for the suggestion!

a test to see if inventor would deform the solid during a bend as would happen in real life. Using the sweep function the cross-section of the tube remains constant around a bend. 

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Yeah.. Inventor won't deform as in real life.