SUBTRACT Command Not working

[jaberwok]

FWIW, I've just taken another look and found that you can Explode your model to recover at least some of the geometry.

[Deby Ferdian]

How to subtract this 3D object. caused by the object don't want to subtract. It said "The selected surface was ignored. Surfaces cannot be subtracted from solids or regions. At least two solids, surfaces, or coplanar regions must be selected." I create the subtraction object with the NURBS customization by me of manual design (my hand made Hehe.. ) and I attached the file too for the compromise that be clearly check it out first of the below.

How to Subtract this Object.dwg


Thanks guys for reading and sorry of my spoken not really too well and thanks too be whose want to help me I'm so hopeful your help be helpfully for me in the near future.

[jaberwok]

How to subtract this 3D object. caused by the object don't want to subtract. It said "The selected surface was ignored. Surfaces cannot be subtracted from solids or regions. At least two solids, surfaces, or coplanar regions must be selected." I create the subtraction object with the NURBS customization by me of manual design (my hand made Hehe.. ) and I attached the file too for the compromise that be clearly check it out first of the below.

How to Subtract this Object.dwg


Thanks guys for reading and sorry of my spoken not really too well and thanks too be whose want to help me I'm so hopeful your help be helpfully for me in the near future.

Hi and welcome to AUGI.
Your white object is made up of surfaces, meshes and regions - you need to get them into a form that can be converted into a solid. I've tried CONVTOSOLID, CONVTOMESH and SURFSCULPT with no sucess; I've also tried untrimming the surfaces which made no difference. Do you still have the base geometry that you worked from?

[jaberwok]

[following direct contact] -

Okay, the basic shape is simple enough - you just have the two solids. You now need to figure out a way to create the end "wings" and the blend shape either as solids or in a form that can be changed to solids. (BTW, the corner fillets on the red part are irrelevant so get rid of them - they just add to the calculations.)

I think the best answer is to LOFT profiles from the front face to the mid-line. Post your second file here so others can take a look.

[tedg]

I'm not 100% sure what the final object is supposed to look like based on his model?
(not clear to me what is staying and what is being removed)

But yes, how I would do this is with a series of extrusions and union/subtract or whatever..

I may give it a try for an example to see what works..

[tedg]

Ok, here is what I "think" you're trying to do (see attached file and screen shot)
Let me know if that helps.

[jaberwok]

Nice try Ted but it doesn't match the original.
Simply delete the red part in the original and you see that the (white part) underside is rather like a boat hull - different curves at the edges and the centreline. That's why I think lofting might be the answer.

[tedg]

Nice try Ted but it doesn't match the original.
Simply delete the red part in the original and you see that the (white part) underside is rather like a boat hull - different curves at the edges and the centreline. That's why I think lofting might be the answer.

Yea, I was just guessing what the OP was trying to do, wasn't clear to me.
Sounds like you may be right with a loft if that is the case.

[tedg]

Ok then, (still not sure if this is the OP's desired result) going by what John is suggesting, using LOFT will get this type of boat hull shape.

My example only uses (3) cross sections (profiles), making a basic shape. This could be done with many sections and going toward whichever direction makes sense for the piece.
For this, I didn't need to subtract or slice any solids, just start and stop your profiles accordingly

If this is what you're trying to do; definitely look into the "LOFT" command in the 'help menu.

[Deby Ferdian]

How to Make a Macro ?

Hi, sorry I made the new topic that I create on the same line. But How do I create or assign a command directly refer through to the macro of the "_solidedit _edge _color " or "_solidedit _face _color "? e.g. I want to assign the "_solidedit _face _color " to be "CF" of the macro. Please Help me! ^_^"