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Build Thread: The Bombers (SR71's become 3-ways)

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  • #91
    Re: Build Thread: The Bombers (SR71's become 3-ways)

    Originally posted by greywarden View Post
    I need to build a FUS RO DAH!!!

    Is this a Skyrim build?

    James

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    • #92
      Re: Build Thread: The Bombers (SR71's become 3-ways)

      "unrelenting force" might end up as a subwoofer build :D

      रेतुर्न तो थे स्रोत
      return to the source
      leviathan system thread
      deadhorse thread
      shockwave build thread

      instagram :: greywarden_13

      in war, victory . . . in peace, vigilance . . . in death, sacrifice.

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      • #93
        Re: Build Thread: The Bombers (SR71's become 3-ways)

        Don't know how I missed this build thread Lunch, but this is turning out amazing. I wish I had the cahones to take on a curved cabinet and a fresh design all in one.

        Keep it up and can't wait to see them completed.
        Builds - C-Killa - Speedsters - LithMTM - Talking Sticks - Pocket Rockets - Khanspires - Dayton RS Center - RS225/28A - Kairos - Adelphos - SEOS TD12X - Dayton 8 - Needles - 871S - eD6c - Overnight Sensations - Tritrix (ported) - Lineup F4 - Stentorians - The Cheapies - Tub Thumpers - Barbells - Tuba HT - Numerous subwoofers - probably missing a few...... :p

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        • #94
          Re: Build Thread: The Bombers (SR71's become 3-ways)

          Printouts spray-mounted to baffles, pilot hole drilled for jigsaw...




          Jigsaw... so easy to cut through 1/2" plywood...






          Dry fit... happy moment...

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          • #95
            Re: Build Thread: The Bombers (SR71's become 3-ways)

            Lunch,

            How did you did this "Printouts spray-mounted to baffles"? Thanks.

            James

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            • #96
              Re: Build Thread: The Bombers (SR71's become 3-ways)

              Originally posted by exojam View Post
              Lunch,

              How did you did this "Printouts spray-mounted to baffles"? Thanks.

              James
              Printouts done on large format plotter (a giant inkjet printer), spray mount is 3M Super 77 spray adhesive.

              You could do this with 8.5x11 printouts patched together very easily.

              Or just use a damn compass :rolleyes:

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              • #97
                Re: Build Thread: The Bombers (SR71's become 3-ways)

                Lunch,

                Thank you for the information.

                How many "chances" does the 3M give you before it is stuck to good to move? Thanks.

                James

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                • #98
                  Re: Build Thread: The Bombers (SR71's become 3-ways)

                  Originally posted by exojam View Post
                  Lunch,

                  Thank you for the information.

                  How many "chances" does the 3M give you before it is stuck to good to move? Thanks.

                  James
                  2 chances... as long as you don't push down and smooth it out after the first try

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                  • #99
                    Re: Build Thread: The Bombers (SR71's become 3-ways)

                    Thank you.

                    James

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                    • Re: Build Thread: The Bombers (SR71's become 3-ways)

                      Big moment... time to glue the baffles to the bracing structure... first a nice generous bead of PL in the dado's of the baffle...




                      Then it was as easy as putting something heavy on the bracing structure to hold it down... this vice probably weighs 80-100 lbs, gotta friend to help lift it... easiest clamp-up ever, if you could call it that... the one clamp you see was just to pull the bracing structure over a hair to get it dead center... if you look closely you can see lines lining up...





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                      • Re: Build Thread: The Bombers (SR71's become 3-ways)

                        So before someone asks "what's with the little scraps glued around the edges of the braces"...

                        I had a bit of a screw up... when I printed out the shapes for the braces, the printer was set to "scale to print" instead of "100%"...

                        So the braces ended up 3/8" too short in both direction... so 3/16" strips have been added to compensate... not all strips are present yet.

                        A real PITA, but not a big deal... totally irrelevant once it's all glued up.

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                        • Re: Build Thread: The Bombers (SR71's become 3-ways)

                          Man, that's good stuff....I've admired your woodcraft since your TriTrix build, and you just keep on raising the bar!:eek:


                          Very very nice.


                          Mark
                          You go your way, I'll go mine. I don't care if we get there on time.

                          ~Pink Floyd

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                          • Re: Build Thread: The Bombers (SR71's become 3-ways)

                            This is a lot of fun to watch, Lunch. Great job so far. Personally, I'd like to see a youtube video of you doing a knuckle-rap test on the completed cabinet. Imagine she will be dead as a doornail.
                            Bryan K.

                            Midwest Audio Club

                            Speedster | | The Wildeman | Sean's NLA Towers | , COUGAR II and | Triton | Lithium | J-Boom | Trym MLTL | Docere MLTL

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                            • Re: Build Thread: The Bombers (SR71's become 3-ways)

                              Originally posted by Mark65 View Post
                              Man, that's good stuff....I've admired your woodcraft since your TriTrix build, and you just keep on raising the bar!:eek:


                              Very very nice.


                              Mark
                              Thanks Mark, it's been quite a journey, and you've been there spurring me along so thanks!

                              This build is really a page out of Bill Fitzmaurices book. He firmly believes that thick heavy materials are not necessary provided the cabinet is well braced, which these certainly will be.

                              What's been really nice is how easy the 1/2" ply is to work with... jigsawig the baffle holes today, for instance, was so simple... probably less than half as much resistance as trying to jigsaw 3/4" mdf...

                              My only concern has been "is a 1/2" thick wall simply soundproof enough" such that sound doesn't simply transmit right through it... But the consensus seems to be that it's a non-issue... I'm certainly not the first to use this thinner material approach, should be ok.

                              What's been really wild is just how different this build has been, as it's literally an inside out build... interesting challenges and opportunities... for instance, gluing the baffle on was incredibly simple: just put a big heavy weight on it. Since the bracing structure is so incredibly stiff, that's all that's needed. It's been fun.

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                              • Re: Build Thread: The Bombers (SR71's become 3-ways)

                                Wow this build is fun...

                                This thing is so fricking solid and stiff... and LIGHT... that's the shocking thing.



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