Comments on Profile Post by ultrabike

  1. ultrabike
    ultrabike
    The fact that they are super small (7x5x5.5 in^3 exterior) makes it worse. And f**k, the optimal port is 1.25" diameter and about 11" deep. I'm going to have a hell of a time doing that. One speaker came out decent, the other one is sort of decent but about 1/8" skewed at the top. Hopefully make up will fix the looks.
    Nov 25, 2017
    Thad E Ginathom likes this.
  2. dmckean44
    dmckean44
    It takes an entire workshop full of clamps and tools to do woodworking right.
    Nov 25, 2017
  3. ultrabike
    ultrabike
    Well. I'm using a circular saw, a router, and a set of clamps. See what comes out. Will posts once I finish.
    Nov 25, 2017
    Thad E Ginathom likes this.
  4. philipmorgan
    philipmorgan
    I’ve long believed the hardest thing you can try in a woodshop is making a perfectly square box. Even “sorta square” is a challenge.
    Nov 25, 2017
    dmckean44 likes this.
  5. dmckean44
    dmckean44
    Leaving extra material on the top and back pieces can give you some leeway, but then you'll have hours of sanding to do.
    Nov 25, 2017
  6. ultrabike
    ultrabike
    One is perfect (the first one I made). The other one is actually 1/16" off. I used the router to do some 1/4" recess for assembly. The problem is that these speakers are very small. I'm using 0.5" MDF instead of 0.75".
    Nov 25, 2017
  7. ultrabike
    ultrabike
    It's not that bad guys. I'll post it later tonite.
    Nov 25, 2017
  8. ultrabike
    ultrabike
    As far as sanding, you better believe it. The baffle is a little short on the sides. Also by about 1/32 to 1/16 of an inch. It's MDF so that may make sanding easier.
    Nov 25, 2017
  9. ultrabike
    ultrabike
    *sigh* Me and thinking partsexpress flat packs were boring. They only sold their 0.05 ft^3 deal which was a little short from optimal though.
    Nov 25, 2017
  10. dmckean44
    dmckean44
    A little bit of polyfill would have gotten you right back to optimal again.
    Nov 25, 2017
  11. ultrabike
    ultrabike
    Yeah. But I also needed a tiny bit more space for the port. The port is a bitch. I'm shooting for an Fb of 70 Hz and F3 of 65 Hz. I'm ditching 1.25" PVC in favor of 1" so I can fit a length of 7" with an elbow.
    Nov 25, 2017
  12. ultrabike
    ultrabike
    I could not go much higher in size because I wanted a tinny speaker also.
    Nov 25, 2017
    dmckean44 likes this.
  13. Cspirou
    Cspirou
    I like leaving a little extra and then using a planer or router to get it down to level around the edges.

    This is also why I want to do more speakers from PVC or sonotubes.
    Nov 25, 2017
  14. Thad E Ginathom
    Thad E Ginathom
    Glue is horribly permanent. Try duct tape.
    Nov 26, 2017
  15. ultrabike
    ultrabike
    It's not bad. I'm really practicing. Worst comes to worst I do it again. I will redo the baffles. Turns out I took 1/16" too much given the width of the circular saw blade. It's better to cut maybe 5 1/8" and reduce by sanding than using wood filler. It'll get there. This is a hobby guys.
    Nov 26, 2017
    Thad E Ginathom likes this.
  16. ultrabike
    ultrabike
    The boxes IMO are acceptable.
    Nov 26, 2017
    Thad E Ginathom likes this.
  17. Thad E Ginathom
    Thad E Ginathom
    I take off my hat to anybody who even attempts speaker building.

    I don't like woodwork for the same reason I don't like sewing. I don't understand why I'm not good at it... but I am not.
    Nov 28, 2017
  18. Thad E Ginathom
    Thad E Ginathom
    Forty-five years ago, a friend of mine made a pair of big speaker cabinets. Then he realised that the design needed the drivers to have been fixed... from the inside.
    Nov 28, 2017
  19. Thad E Ginathom
    Thad E Ginathom
    Oh, there's a thread! Great. Will be reading with interest.
    Nov 28, 2017
    ultrabike likes this.