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Boolean operation does not reflect in the back part of the main body

Forum Archive › Boolean operation does not reflect in the back part of the main body

Viewing 9 posts - 1 through 9 (of 9 total)
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  • September 22, 2024 at 4:57 pm #18815
    hexdump
    Participant

      This is the state of the mesh without the mirror modifier:

      And this is it with applied mirror modifier and boolean:

      And this is the back part:

      This is the modifer stack of the mesh:

      As I like modeling it first myself… I did everything in one piece. I will try later as the teacher does. I mean, using several different parts.

      Why isn’t the holes carved using booleans shown in the back side?

      September 22, 2024 at 5:35 pm #89682
      Dwayne Savage
      Participant

        Boolean has to be done before mirror. The modifiers go in order from top to bottom. So it’s mirroring the solid piece before the holes are cut by the Boolean. 

        ***Edit*** To make myself more clear. You have the cutting object only on 1 side. you can either do the Boolean first or add a Y mirror to the cutting object. I can’t remember, but I think he leaves the back blank like what you have and cuts USB sockets in the back. 

        September 22, 2024 at 7:22 pm #89683
        Omar Domenech
        Participant

          Yes, as Dwayne says, it’s a bit counterintuitive, but the modifier at the top of the list is the last in the stack, meaning it’s at the bottom. Better think of it as the top one is the first one to make its trick happen, then the others follow as you visually move down the stack. 

          September 23, 2024 at 3:09 am #89684
          hexdump
          Participant

            Ummm, but there’s still something I don’t understand. I get that I should first do the boolean thing and then apply the mirroring. This way the changes made by the boolean modifier applies to the other parts because the original part is mirrored in x and y. But then… why is it working in the X axis in my example?  I mean, the boolean modifier has not being mirrored to the back (X axis), but it has been transferred to the left side (Y axis) as seen in the picture where all the front part has holes. Not just the original piece where I originally applied the booleans.

            September 23, 2024 at 4:58 am #89685
            Martin Bergwerf
            Participant

              HI @hexdump ,

              I don’t know, maybe your Cutters (Cylinders) are long enough to cut through the mirrored side on the X-Axis, but don’t reach all he way back along the Y-Axis…?

              September 23, 2024 at 6:59 am #89686
              Dwayne Savage
              Participant

                I guess I edited my response after you read it. The cutting object has to be mirrored on the y or duplicated to the other side or made long enough to reach to the other side. In the course the back is left solid since it isn’t seen. I believe at the end he shows how you can cut the USB connection. 

                September 23, 2024 at 7:10 am #89687
                Omar Domenech
                Participant

                  You could upload your file so we can take a closer look and dispel what seems like magic and bring it to the science level. High five for science.

                  September 23, 2024 at 8:53 am #89688
                  Adrian Bellworthy
                  Participant

                    Do you have a mirror on the cutter in the X axis only?
                    As already mentioned though, if you want the boolean on both ends, you need the Boolean modifier on the hard drive above the mirror modifier.

                    September 23, 2024 at 4:04 pm #89689
                    hexdump
                    Participant

                      Thanks guys! You helped me a lot 🙂

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