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    Problems with a half-torus

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    sketchup
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    • D Offline
      d12dozr
      last edited by

      Yep, what Box said...the best way is to optimize the segments at the beginning. That said, you can use Netfabb Basic to quickly decimate (reduce the # of polygons) an existing model with out having to re-draw the whole thing.

      Here's how: open model in Netfabb, Right click > Level of Detail > Choose something like 50%.

      3D Printing with SketchUp Book
      http://goo.gl/f7ooYh

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      • TeigT Offline
        Teig
        last edited by

        @d12dozr said:

        Yep, what Box said...the best way is to optimize the segments at the beginning. That said, you can use Netfabb Basic to quickly decimate (reduce the # of polygons) an existing model with out having to re-draw the whole thing.

        Here's how: open model in Netfabb, Right click > Level of Detail > Choose something like 50%.

        It must be something like Netfabb my mate's brother had to use for this last print, he ran it through some jiggery-pokery and took the file size down by 90%.

        I'll do this version again on night shift tonight with all your suggestions for minimising and see what happens, thanks again Marcus and Box πŸ‘

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        • TeigT Offline
          Teig
          last edited by

          I've just lashed one up tonight, with fewer sides/segments the .stl rolls in at 1.8mb, much better. I'll email it off for printing now.

          V36.skp

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          • cottyC Offline
            cotty
            last edited by

            Nice and clean! Show us some photos after the print is back...

            my SketchUp gallery

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            • BoxB Offline
              Box
              last edited by

              Yep, a very nice bit of modelling there. Well done.

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              • TeigT Offline
                Teig
                last edited by

                The strengthening of the throat-base was giving me some grief until I had a eureka moment and put the channels for the air vents underneath. Took about 20 minutes to draw, a far cry from a month ago when it took me 8 hours to get an outline πŸ˜„

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                • TeigT Offline
                  Teig
                  last edited by

                  I wonder what's wrong now... It's a long night on shift and started drawing an elbow, it's an exercise really with the general (virtual) notion being to mount the bellmouth up out of the way. So I started fiddling and came up with this:

                  Elbow v1.jpg

                  It gave me a bit of bother trying to draw the support flanges, the result being it's not solid. I'm being told I'll need to manually remove faults. That's my latest problem, I've duplicated and scaled up trying to use the 'Dave R' technique but it doesn't work, SolidSolver unable to fix it. Anyone for some guidance on this one?

                  Elbow.skp

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                  • BoxB Offline
                    Box
                    last edited by

                    If you intersect the top face of the flange with the collar you can remove the face you can see in the tube. Then a bit of cleanup of some stray lines and it is a solid.
                    I can give it to you fixed if you want it.

                    I just noticed it is a group, so edits on the big one won't flow to the small one.

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                    • TeigT Offline
                      Teig
                      last edited by

                      Oh fiddle! I should have done it as a component.... 😑 I'll try and figure out what you mean Box, I may be back soon... πŸ˜„

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                      • TeigT Offline
                        Teig
                        last edited by

                        Strewth! How do you intersect them? There's a trio of choices, with face, with model and with selection, none seem to work.

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                        • TeigT Offline
                          Teig
                          last edited by

                          @box said:

                          I can give it to you fixed if you want it.

                          Yes please Box! My grey matter is frazzled πŸ˜„

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                          • BoxB Offline
                            Box
                            last edited by

                            Here, I'll give you this gif, and see how you go.
                            But remember to make it a component this time.

                            Edit:if you are wondering what the first context menu was, it was just the intersect face one, but it was off screen so a moved down and did it again to get it where you could see it.


                            With selection.gif

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                            • TeigT Offline
                              Teig
                              last edited by

                              And I thank you once again Box, I did what you said, couldn't see what you could see to understand why it worked bu the result is solid! πŸ˜„

                              Elbow.skp

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                              • BoxB Offline
                                Box
                                last edited by

                                On your original when you look into the pipe you see a blue face, this it the back side of the top face of the flange, so by intersecting that face you can remove the part blocking your airflow, and then removing the other edge/ring gets rid of an internal face.


                                Inner Face.gif

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                                • TeigT Offline
                                  Teig
                                  last edited by

                                  I knew immediately I'd have internal face when I pulled 'backwards' didn't know to get rid though. I do now πŸ˜„ Onwards and upwards, time of home soon for some sleepsssss. Once again, TVM Box.

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                                  • TeigT Offline
                                    Teig
                                    last edited by

                                    Been playing again tonight and seem to have nailed it πŸ˜„

                                    Elbow5star.jpg

                                    Elbow.skp

                                    Now to get rid of the five star mount and think about how to draw a snap-on clip type system. I've drawn loads of bellmouths of various sizes; it'd be really cool to be able to clip-on clip-off different ones and be able to compare the difference in the torque/power response immediately πŸ€“

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                                    • D Offline
                                      d12dozr
                                      last edited by

                                      Superb, Teig! It's neat to watch your progression from the beginning of the thread to now πŸ‘

                                      3D Printing with SketchUp Book
                                      http://goo.gl/f7ooYh

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                                      • BoxB Offline
                                        Box
                                        last edited by

                                        Indeed is is good to see.
                                        Have you thought about a keyhole type slide fitting.
                                        Slide it on and a simple quick release split pin to lock it.

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                                        • TeigT Offline
                                          Teig
                                          last edited by

                                          Or R-pins for more simplicity? Yes, good idea. I've been looking around at plastic snap-clips for ideas but that might be simpler.

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                                          • TeigT Offline
                                            Teig
                                            last edited by

                                            @d12dozr said:

                                            Superb, Teig! It's neat to watch your progression from the beginning of the thread to now πŸ‘

                                            I did that myself at the weekend, looked back to the start of the thread that is, my comical first-attempts put a smile on my face πŸ˜„

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