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3.1 - Overnight Sensations + Cerberus sub

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  • #61
    Re: 3.1 - Overnight Sensations + Cerberus sub

    Originally posted by Mikers View Post
    Primer porn.

    They look so nice I don't want to top coat them. This is rattle can Rustoleum Painters Touch primer, goes on really nice and is wet sandable.

    This is the 4th coat of primer. The first coat was almost all sanded off using 180. Next coat 220. Third coat was 320 then a quick 400 dry. I'll sand this coat with 400 wet before paint. In between I filled little nicks and pocks with red glazing putty using a razor blade as an applicator.

    [IMG][/IMG]

    [IMG][/IMG]

    The MTM or center channel is one step behind. It is currently covered in little red blotches of putty getting ready for a sanding and final application of primer. I did the MTM different in that I coated the whole thing with milkshake before primer. I'm still indifferent on this in that it makes the large surfaces easier to smooth but the areas that required a thicker filler were left with pin holes (this is at the joints). To speed it up next time I'd smear the joints with full body filler then do a milkshake. Probalby still need 3 coats of primer. Then again if I didn't use particle board large surface prep wouldn't be an issue.

    The final color will be satin black. My inspiration is the Five Axis design Lexus below... love it. I can only imagin the B4N's are those rims.

    [IMG][/IMG]
    you make particle board look good. What other material you thinking of conquering next?

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    • #62
      Re: 3.1 - Overnight Sensations + Cerberus sub

      I'm going to do a high gloss black on the sub using rattle cans. That should be interesting. I think next time I'll take on veneer or do a wood paint combo

      Comment


      • #63
        Re: 3.1 - Overnight Sensations + Cerberus sub

        After working with particle board and now using mdf I'm not sure particle board is so bad, the saw dust is much easier to live with and it cuts/drills better. To bad finishing is more timely, but if covering with veneer who cares.

        Comment


        • #64
          Re: 3.1 - Overnight Sensations + Cerberus sub

          I'm sure others have experience using particle board rather than MDF (some even use Baltic Birch plywood) but the question I'd have is how it compares, shrinkage wise, to MDF. I'm sure you've read lots of posts complaining about the tendency MDF has to develop a faint part line after the finished project sets for a while. If particle board doesn't have that problem, i.e., no line develops, it might be worth the added surface preparation using it involves (when a painted finish is used). Let us know how that turns out.
          Tritrix HT:http://techtalk.parts-express.com/sh...d.php?t=222519
          Dayton 12" Subwoofer: http://techtalk.parts-express.com/sh...d.php?t=222930
          Overnight Sensations: http://techtalk.parts-express.com/sh...d.php?t=223751
          Cerberus sub: http://techtalk.parts-express.com/sh...hlight=cerebus
          Duellatis: http://techtalk.parts-express.com/sh...d.php?t=224943
          NTN's: http://techtalk.parts-express.com/sh...d.php?t=227902

          Comment


          • #65
            Re: 3.1 - Overnight Sensations + Cerberus sub

            Originally posted by Soundslike View Post
            I'm sure others have experience using particle board rather than MDF (some even use Baltic Birch plywood) but the question I'd have is how it compares, shrinkage wise, to MDF. I'm sure you've read lots of posts complaining about the tendency MDF has to develop a faint part line after the finished project sets for a while. If particle board doesn't have that problem, i.e., no line develops, it might be worth the added surface preparation using it involves (when a painted finish is used). Let us know how that turns out.
            I'm not sure about the part line, I hope my surface prep, filling and sealing will prevent this from happening. I am waiting a long time between coats of primer and paint (mainly due to weather) so this should help. I really can't see any reason for a part line to show up, not in the dry climate I live in anyways.

            One thing that I would like but it won't happen is an old oven in the garage to bake things out it. You wouldn't fit a tower in it but you could put a pretty big box. Turn the heat to 125 or so and let bake for and hour. This would shrink everything. Not only for speaker boxes but all sorts of projects and curing paint. I'd use the one in the kitchen but I'm pretty sure I'd be homeless after that.

            Comment


            • #66
              Re: 3.1 - Overnight Sensations + Cerberus sub

              Here are the cutouts on the bottom of the sub so it can pound. I integrated the legs into the sides, just so it looks nice. I have some rubber round feet that are about .75" high that will go in each corner.

              Here I have it laid out and I have cut the long cuts. Using my panel cutter on the table saw I brad nailed a stop so all the pieces will be cut the same depth. Before cutting I marked my rounds and drilled down about 1/16" on both sides so I knew where to stop. Since I couldn't put the blade all the way up I actually had to flip it and cut from both sides. I finished cutting to the tanget with a hand saw (what's that?) *** Note I'm about 1/4" from the Dado, this way when the sub is surface mounted to the bottom it won't hang down, kinda a flush mount cheat.

              [IMG][/IMG]

              Here I'm cutting the short vertical cuts using the panel cutter

              [IMG][/IMG]

              and this is the end result after drilling out the corners. Drill corners last, that way your staright cuts won't wonder and you have something holding it together while on the table saw. A little touchup sanding and it will be nice and smooth.

              [IMG][/IMG]

              Next, glue it all together and try it out (the speaker and amp cutouts are done so is the port). Subs are so much easier to build. Since I really have nothing to share design/speaker wise I hope my woodwork and painting tips are help to others.
              Last edited by Mikers; 04-06-2011, 11:30 AM.

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              • #67
                Re: 3.1 - Overnight Sensations + Cerberus sub

                I appreciate your efforts to document your build. I've picked up a number of ideas from you, so you've helped me. I'm sure there are many others as well. Keep the faith -- warm weather can't be too far off. By the way, the oven you describe sounds like our summer climate down here. Guess we don't know how lucky we are, having such a large oven and all...
                Tritrix HT:http://techtalk.parts-express.com/sh...d.php?t=222519
                Dayton 12" Subwoofer: http://techtalk.parts-express.com/sh...d.php?t=222930
                Overnight Sensations: http://techtalk.parts-express.com/sh...d.php?t=223751
                Cerberus sub: http://techtalk.parts-express.com/sh...hlight=cerebus
                Duellatis: http://techtalk.parts-express.com/sh...d.php?t=224943
                NTN's: http://techtalk.parts-express.com/sh...d.php?t=227902

                Comment


                • #68
                  Re: 3.1 - Overnight Sensations + Cerberus sub

                  Originally posted by Soundslike View Post
                  I appreciate your efforts to document your build. I've picked up a number of ideas from you, so you've helped me. I'm sure there are many others as well. Keep the faith -- warm weather can't be too far off. By the way, the oven you describe sounds like our summer climate down here. Guess we don't know how lucky we are, having such a large oven and all...
                  Thanks, it's fun to show off since no one at home cares. It's warmer now, well for the cold blooded. Hope to have all this painted and wrapped up soon.

                  Comment


                  • #69
                    Re: 3.1 - Overnight Sensations + Cerberus sub

                    Great job Mikers! If you have them, post some pix of the rest of your cutouts for the amp and sub . Thanks R.K.

                    Comment


                    • #70
                      Re: 3.1 - Overnight Sensations + Cerberus sub

                      Routing the 2" x 17" port.

                      [IMG][/IMG]


                      Here's the port, made the same way as the ONS. In this case I didn't use a round over because of space (once the sides are on they are right up to the port because of the dado), however I did run a 15 deg chamfer bit around it.

                      [IMG][/IMG]

                      Comment


                      • #71
                        Re: 3.1 - Overnight Sensations + Cerberus sub

                        Just a thought-
                        Maybe grab some metal strapping and secure the inner end so it doesn't ring like a tuning-fork. I've had that happen before. Screw her down a smidge.

                        Later,
                        Wolf
                        "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
                        "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
                        "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
                        "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

                        *InDIYana event website*

                        Photobucket pages:
                        http://photobucket.com/Wolf-Speakers_and_more

                        My blog/writeups/thoughts here at PE:
                        http://techtalk.parts-express.com/blog.php?u=4102

                        Comment


                        • #72
                          Re: 3.1 - Overnight Sensations + Cerberus sub

                          Originally posted by Wolf View Post
                          Just a thought-
                          Maybe grab some metal strapping and secure the inner end so it doesn't ring like a tuning-fork. I've had that happen before. Screw her down a smidge.

                          Later,
                          Wolf
                          I was going to secure it with spray foam, a blob at the end, on the top and on the side. With the amp out there is lots of access. Thanks for the tip

                          Comment


                          • #73
                            Re: 3.1 - Overnight Sensations + Cerberus sub

                            I did a test run on the sub this afternoon and am very happy with the performance of this 6.5" woofer. I upgraded to the 2" port and didn't notice any port noise with the limited playtime. I don't have measuring equipment but I can tell you there wasn't port noise. I was playing pop/hip hop.

                            I gotta get this project finished, can't wait to hear it all together.

                            Comment


                            • #74
                              Re: 3.1 - Overnight Sensations + Cerberus sub

                              So I was sealing my routered MDF edges on the sub and got a little carried away and covered the whole sub with reduced fiberglass resin. Well a couple days later when I got around to sanding it, what a mess. The sandpaper gummed up and that was about it, needless to say I was a little ticked off. I tried a few days later, same thing. So now a week later, I went at it again, this time with great results. I guess the resin just needed to cure. I started with 80 to knock off the "shine" and any brush marks then worked my way up to 220 using 100, 150 and 180 steps, by hand with a sanding block, always with a sanding block. No gumming and it's super smooth. The resin made the MDF nice and hard surface. Now, very happy.

                              I'm sure if I lived in Pheonix or something this wouldn't be a problem, put it in the sun for a good bake... but it's still snowing here!!! Frick, global cooling.

                              Comment


                              • #75
                                Re: 3.1 - Overnight Sensations + Cerberus sub

                                Yeah, I was outside working on my Cerebus and we've got the drying thing pretty well nailed. Spread a little Titebond, and you've got about 45 seconds to get it together. Did you use sound deadening material?
                                Tritrix HT:http://techtalk.parts-express.com/sh...d.php?t=222519
                                Dayton 12" Subwoofer: http://techtalk.parts-express.com/sh...d.php?t=222930
                                Overnight Sensations: http://techtalk.parts-express.com/sh...d.php?t=223751
                                Cerberus sub: http://techtalk.parts-express.com/sh...hlight=cerebus
                                Duellatis: http://techtalk.parts-express.com/sh...d.php?t=224943
                                NTN's: http://techtalk.parts-express.com/sh...d.php?t=227902

                                Comment

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