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  • How can you tell Chris that it's not the same distance around?


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    • Just a hunch from the picture. If it's just an odd camera angle, then no worries. Have at it :-)
      Christopher Owens
      Bearhawk 4-Place Scratch Built, Plans 991
      Bearhawk Patrol Scratch Built, Plans P313
      Germantown, Wisconsin, USA

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      • Wonder how much mdf I'll go through before I get it.


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        • Read Chapter 1 of Eric Newton's build manual thoroughly and you'll get a good understanding of the processes involved. You said you have it a while back. Definitely read it. Did I mention you should read Eric's manual if you have it? Chapter 1. All of it. Twice even. Don't need to print it. Just open the PDF on your tablet or computer and read it. Lots of great photos and step-by-step info. With that, my stuff may make more sense.

          Also watch that whole video that was linked a few messages up. Very valuable insight.
          Christopher Owens
          Bearhawk 4-Place Scratch Built, Plans 991
          Bearhawk Patrol Scratch Built, Plans P313
          Germantown, Wisconsin, USA

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          • I've had to redo some forms. You can get a lot out of one sheet of MDF
            Christopher Owens
            Bearhawk 4-Place Scratch Built, Plans 991
            Bearhawk Patrol Scratch Built, Plans P313
            Germantown, Wisconsin, USA

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            • I'm thinking about buying a big sheet of plastic cardboard and do all the patterns before committing them to MDF. It might ad an extra step but at least I won't burn through the MDF.


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              • That's a good choice. Likely cheaper and less effort before cutting the thick expensive stuff.
                Christopher Owens
                Bearhawk 4-Place Scratch Built, Plans 991
                Bearhawk Patrol Scratch Built, Plans P313
                Germantown, Wisconsin, USA

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                • We took one of the MDF patterns and traced around to see if it was consistent. According to dad at least he says the flange is consistent.

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                  Last edited by MNBenny; 02-03-2017, 10:12 AM.

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                  • Sounds like you're in good shape :-)
                    Christopher Owens
                    Bearhawk 4-Place Scratch Built, Plans 991
                    Bearhawk Patrol Scratch Built, Plans P313
                    Germantown, Wisconsin, USA

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                    • Would Home Depot or the local ace hardware have bushings?


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                      • Bushings for what?
                        Christopher Owens
                        Bearhawk 4-Place Scratch Built, Plans 991
                        Bearhawk Patrol Scratch Built, Plans P313
                        Germantown, Wisconsin, USA

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                        • To stick in the jig holes to keep everything locked in place. Won't the holes start to wear to big over time?


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                          • Believe it or not, not too much. When I was drilling through mine, they got a little bit bigger, but not significantly so. Since the number of pieces your building is far less than a factory setting, the wear is negligible. I cut four wings' worth of ribs from my first set. Drill carefully with a drill press, not a hand drill, and the hole enlargement will be minimal.
                            Last edited by Chris In Milwaukee; 02-04-2017, 09:32 AM.
                            Christopher Owens
                            Bearhawk 4-Place Scratch Built, Plans 991
                            Bearhawk Patrol Scratch Built, Plans P313
                            Germantown, Wisconsin, USA

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                            • The only thing that would benefit from using bushings is keeping the holes from enlarging while drill jig holes. MDF is tough stough, otherwise. Chapter 1 of Eric's guide shows him using bushings made from small-diameter 4130 tubing. I've had no luck finding a similar material at any hardware store or home center.
                              Christopher Owens
                              Bearhawk 4-Place Scratch Built, Plans 991
                              Bearhawk Patrol Scratch Built, Plans P313
                              Germantown, Wisconsin, USA

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                              • So do you think it would hurt not using them? Also being that I am using a router do I still need to drill holes in the inside corners?

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