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Pretty Persuasions - InDIY Coax Build Thread

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  • JavadS
    replied
    Originally posted by carlthess40
    I’ve made...

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  • JavadS
    replied
    Ok time for some ports! Here is where they stood before



    First step punch some pilot holes through the center of the back


    Now drill with 1.5"” bit




    The ports get installed from behind and clamped in place, ready for a 1/2” spiral cut flush bit. They’re a tight fit but if they fell out it would be disasters







    Ready for a roundover


    I used 3/4” as port velocity wont be an issue on these and it gives some room to the relatively tight fit





    Time for some port tuning with WT2, 8” driver installed and open back sealed against the moving blanket



    Ports with inner supports and flares installed, driver connected



    First sweep with approx 9” long ports, Fm of 32hz



    This is the model I’m targeting, about 38hz



    1.5”" removed



    Another sweep, now Fm 35hz



    1” more off, and right at 37Hz, I’m good with that



    Next clamping on and locating the back!

    Javad

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  • joeybutts
    replied
    This is why build threads are awesome; definitely using that template technique down the road.

    Beautiful work as always, and mad jelly about your space and equipment.

    This makes me want to start a serious build soon.....

    Leave a comment:


  • Paul K.
    replied
    If you're interested, I allow an extra 1/64" added to the flange's thickness if the driver comes with its own thin foam gasket. If the driver doesn't come with its own gasket, I use PE's speaker gasket foam tape and add 1/32" to the driver's flange thickness. If I screw up on either and cut the flange recess significantly too deep, I simply add a layer of PE's gasket tape to either type of driver gasket to raise the driver up. I don't fret over a driver's flange being a smidgen above or below a baffle, however, as the acoustical ramifications will not be audible.
    Paul

    Originally posted by KEtheredge87 View Post

    Hey Javad, Love the documentation for the irregular shape flush mount router work! Making test cuts to dial everything in is certainly smart. I was wondering if or how you account for some gasket tape behind each driver? Some drivers come with a thin foam gasket supplied, but I prefer the PE speaker gasket tape. I'd like to get a consistently flush install, but I'm never sure how much extra depth to include for the gasket tape. Do you have experience or thoughts you'd share?

    Thanks!
    Keith

    Leave a comment:


  • JavadS
    replied
    Originally posted by carlthess40
    Now I’m kicking myself for having to sell off my wood working shop when we moved into this condo. Great job. I used to make my kerf cuts with my router table setup that I had made on the end of my 1970’s sears table saw. That way I was able to get the cuts into an angel for the bend. Your skills are top of the line. Will you be marking and selling these?

    Leave a comment:


  • JavadS
    replied
    Originally posted by KEtheredge87
    Hey Javad, Love the documentation for the irregular shape flush mount router work! Making test cuts to dial everything in is certainly smart. I was wondering if or how you account for some gasket tape behind each driver? Some drivers come with a thin foam gasket supplied, but I prefer the PE speaker gasket tape. I'd like to get a consistently flush install, but I'm never sure how much extra depth to include for the gasket tape. Do you have experience or thoughts you'd share? Thanks! Keith

    Leave a comment:


  • Navy Guy
    replied
    Those pincushion frames always make me wince. I wish manufacturers would just offer round for everything I need to get a few more router bits so I can try doing this at some point.

    Leave a comment:


  • KEtheredge87
    replied
    Originally posted by JavadS View Post
    ... Test cuts finalizing OD, ID and recesses
    Hey Javad, Love the documentation for the irregular shape flush mount router work! Making test cuts to dial everything in is certainly smart. I was wondering if or how you account for some gasket tape behind each driver? Some drivers come with a thin foam gasket supplied, but I prefer the PE speaker gasket tape. I'd like to get a consistently flush install, but I'm never sure how much extra depth to include for the gasket tape. Do you have experience or thoughts you'd share?

    Thanks!
    Keith

    Leave a comment:


  • marvin
    replied
    What kind of router bit would you use to make kerf cuts?

    Leave a comment:


  • carlthess40
    replied
    Now I’m kicking myself for having to sell off my wood working shop when we moved into this condo. Great job. I used to make my kerf cuts with my router table setup that I had made on the end of my 1970’s sears table saw. That way I was able to get the cuts into an angel for the bend. Your skills are top of the line. Will you be marking and selling these?

    Leave a comment:


  • JavadS
    replied
    Originally posted by ugly woofer
    Javad, what kind of finish will these have?
    Likely Minwax Natural stain (basically oil) and sprayed spar varnish.

    Leave a comment:


  • Derekj
    replied
    Good idea with the fishing line and template tape!

    Leave a comment:


  • Millstonemike
    replied
    Javad,

    On the method for cutting the baffle to fit an odd shaped driver ...

    Could you do it with one sacrificial template by starting with 1/2" bit for the template. Then switch to a 1/4" bit for the final cut?

    Leave a comment:


  • ugly woofer
    replied
    Javad, what kind of finish will these have?

    Leave a comment:


  • dkalsi
    replied
    Absolutely stunning!

    Leave a comment:

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