Symmetric Indentations

[3D_Ken]

I have a solid body that is 20mm thick.  I want rectangular indentations that are 4mm deep on the top and the bottom.  The top and bottom indentations must exactly align.

Is there an easy way to do this?

Ken

=== 

[davebYYPCU]

Make the first one, mirror or pattern the second one.

Might help....

[3D_Ken]

Thanks, I'll give it a try and let you know if I succeed.

[3D_Ken]

I made the first indentation, but it doesn't look like you can mirror an empty space.  Am I missing something?

[g-andresen]

Hi,

show pictures or screencast to have a look at.

günther

[etfrench · Accepted solution]

Create a mid plane, then use that in the mirror command.

[davebYYPCU]

What ever Feature you made for the indent, Select That Feature icon off the timeline, change to Features, in the Mirror or Pattern.

Might help....

[3D_Ken]

The "Midplane" was the key to my understanding of using Mirror.  What I ended up doing was the following.  If there is an easier way, I'm open to learning more, but my problem is solved.

1.  Create Midplane and plane on right side.

2.  Sketch hole outline on right side plane.

3.  Extrude the hole shape 1 mm out.

4.  Make 2 copies of the new body (I needed 3 holes on each side).

5.  Create Mirror (Body option) using the 3 bodies, mirrored around the midplane.

6.  Select the 3 right side bodies.

7.  Extrude/Cut -(Depth+1)

8.  Do the same with the 3 left side bodies.

[davebYYPCU]

Not what I would do, but no example pic, so few options.

1. Create the midplane, if the origin is not in the centre of the body.

2. Create and sketch the three shapes to cut.

3. Extrude cut the sketch shapes, pick individual shapes in one go, set distance.

4. Mirror the Extrude cut feature, (3) from the time line. Or, without step (1)

4. Extude cut the same shapes with Offset Plane starting position, selecting rear face, then set distance.

Might help...