Extending a sweep tube to a non right angled plane

peter_cuthbert

Hi folks

I am drawing a very simple flue which is for a steam canoe boiler.  Given the context the flue slopes backwards by 6 degrees.  The walls of the flue are 0.5 mm stainless and have been drawn as concentric circles on the Top plane.  The sweep path line (500mm) has been set up with the desired tilt.  The sweep has then produced the flue, but it has swept up the top which is parallel to the base not not at right angles to the flue as it should be.

I have tried Move Face and Replace Face to get it to extend to the plane "Tilt Plane 2" without success.  I am obviously missing the simple solution but that is the burden we amateurs must carry.  Should anybody know of the simple solution I would be most grateful to hear of it.

The offending file is to be found here:

https://cad.onshape.com/documents/3576d0a2243fb6f241e6ed48/w/328b3ab946ea9d77ce5f8aef/e/1f758ef9d4698a15193ed014

Best wishes

Pete

rafael_telgmann

Hi there! I think it would be a good idea to extend it by an offset and split. Also, it might be a good idea to sketch the circles perpendicular to the sweep path. 

https://cad.onshape.com/documents/a0d9c0a207129a1a1dfff318/w/aabfdb8c097ef05418c5bb61/e/13fd5e35b7491d9f09fb5683?renderMode=0&tangentEdgeStyle=1&uiState=668aa908c1e25064f6641391

robert_scott_jr_

Hello Pete. I may be missing something. "right angles to the flue as it should be" Aren't you going to end up with a common piece of tube that is visually in space at an angle of 6 degrees from vertical? - Scotty 

peter_cuthbert

Hi Rafael & Scotty

Many thanks for your posts which I have just spotted.  In answer to your comment Scotty, yes this is a bit of common tube with the bottom cut at an angle.  So simple in fact that I was unable to draw it! (The joy of being a newbie to this 3D lark) Basically it is a component in a steam canoe funnel.  By tradition they all slope aft by 6 degrees with the top cut at right angles to the tube, not parallel to the base.

I am in the wrong place on the wrong computer just now but tomorrow I will post up some more details (eg. picture and a 2D drawing).

Thanks for showing interest.

Best wishes

Pete

peter_cuthbert

Good Morning from a Sunny Cymru

Here is a 2D drawing of the funnel assembly:

Here is a photo of the boiler casing and funnel although the latter is missing the liner as I incorrectly specified it first time around and so now need to get a replacement made.

Right, off totryout Rafael's suggestion.  Hope it works for me.

Regards

Pete

peter_cuthbert

Hi Folks

I am happy to report that Rafael's suggestion has worked for me.

Regards

Pete