Trouble Sketching from Derived Parts

[cjjatpuresilica]

Dear EngAddict,

I have attached my model of my derived parts "New Cap.ipt" and you will see that I am struggling to get the sketches to work.

Would it be possible to ask you to have a quick look at it please and let me know what I am doing wrong?

I am trying to produce a solid model of the sheet metal model deriving the two parts has produced.

I would be most grateful.

Thank you,

cjj

 

[EngAddict]

Don't you already get what you want from the subtraction of the derived parts?

If you are just trying to copy it you could loft the top as a new solid, then loft the bottom. Now thicken with the intersect option (basically will shell your model. Or just loft the top as a surface and thicken with the join option.

You might need to explain a little more what you are after.

 

[cjjatpuresilica]

Dear EngAddict,

I apologise for not making myself clear.

What I am trying to do is produce a parametric version of what the subtraction of the derived parts achieves but as a solid.

When I try to Sculpt the 3D sketch as per your kind sample it seems to automatically use the inside profile from the derived model rather than using my sketch.

When I try to loft it the secondary lower loft fails for some reason saying it cannot produce a meaningful etc.

Thank you for your kind help.

cjj

 

[EngAddict]

You wont want to sculpt for this but you should be able to loft. Make sure you create a new solid. See attached.

 

[cjjatpuresilica]

Dear EngAddict,

Thank you, I had come to the same conclusion by trial and error.

Thank you for modifying my model too.

I wondered if you could possible help me with my querie regarding writing an external rule please. I have asked it as a new question.

Thank you once again.

cjj