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Help with angle cuts in 3D


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Posted

Hello all,

 

I just began taking Mechanical Design, and do 3D art in my free time, so CAD isn't that much of a stretch.  Our instructor was not able to go over this assignment with us, and I have it modeled up to the point where the two angles must be subtracted.  So far, I have not found a solution to this issue through a tutorial, so any help would be appreciated.  The instructor wanted us to play around with subtracting 3D Wedges from the model to get the shapes.

CAD Help - 1.png

Posted

Subtracting wedges would not exactly be the most efficient method for creating the pictured object.

Posted

Just look at bottom left image if that is where you started then just extrude the shape then add a 2nd shape, extrude and subtract from original solid, angles done.

image.png.bc4f701787fc82f576c5cf164ba93523.png

Posted

I draw in 2D as mush as possible for shapes, then extrude etc.

 

You could use Chamfer Edges on that if already drawn, but some shapes do require subtracting a wedge, slice etc.

 

Slice would be  my preference of modifying that, though as  simple as  that object appears, I would redraw it 2D from the side view and extrude, the sides and the middle pieces, copy or mirror the sides then union.

 

I can post an example of doing that tomorrow when I get to work.

Posted
1 hour ago, SLW210 said:

I draw in 2D as mush as possible for shapes, then extrude etc.

 

Same here. Draw in 2D as much as possible, then extrude. Makes life a lot easier.

Posted

Can you post what you have so far?

 

There is also Taper Faces and Rotate Faces that come in handy.

 

What type of 3D design are you doing?

 

Cad64 is experienced in a good deal of 3D applications and has a very good YouTube page.

 

I learned most of my techniques for 3D by trial and error and watching videos and reading tutorials once the internet was useful in those endeavors to refine and speed up my methods.. 

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Posted

Only took a couple of minutes using extrude. I extruded the circle and side 1/4" (Subtract the circle to make a hole), then the back and bottom I extruded 1" the other direction, mirror the side using the midpoint of the bottom (you could also use Copy). I didn't Union, but you would then Union to make one piece.

 

 

2D Side.png

3D Side.png

Posted
On 1/20/2025 at 8:54 AM, Cad64 said:

Same here. Draw in 2D as much as possible, then extrude. Makes life a lot easier.

Me too, however you folks would probably laugh at me if I told you what 3d program I use sometimes to build parts drawings. Anyway, I compile all my orthographic's, put them together, and then extrude. Works for me.

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