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Thread: help with MDF fabrication please....

  1. #1
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    help with MDF fabrication please....

    heres my problem: i have a 2005 Dodge Neon SXT and am trying to make MDF speaker rings to replace the plastic.

    now i have 3 options ive thought of. first option is use MDF and build that it up to the correct height, then cut and sand it to the correct angle and dimensions. Option 2 is build up MDF to that thickness, but leave it flat then when the speaker is mounted have it flush with the plastic door molding, once thats done cut a hole in the plastic molding and use the speaker grilles to cover the hole in the door so all you see is the speaker grills. option 3 is to make circular rings and glue em together vertically, then make a bigger MDF ring that fits ouside the smaller rings at an angle (kinda worried about the integrity of this option though)

    btw its about 3 inches, 1.75 above the flat part, and 1.25 below it, and i got 1/2 inch MDF board for these (gonna use 3/4 for sub)
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  2. #2
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    If I were you I wouldnt waste time building that up with mdf, Id just go ahead and bang it out with fiberglass. Can I see pictures of the door panel/kickpanel where the piece is going as well as the gutted frame of where its going. I may be able to help more with those pics. Thanks

  3. #3
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    i thought about glassin it also... i just like the MDF
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  4. #4
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    Build a flat ring out of MDF, then either build some other rings, cut them in half - then use a band saw/table saw to cut them at angle. You end up with angle circular wedges. Use woodglue, screws to laminate it together. Pretty simple.

  5. #5
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    thats what i basically was thinkin with the 1st option

    unfortunately i dont have many power tools atm... mainly hand power tools so its a little harder to do an angle....

    i might be able to get some other power tools that will help in a day or 2 but as of now i dont have the ability to do that

  6. #6
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    Just cut the main rings then....use some wood blocks of various sizes to get the right angles. And glass it all together. Really I don't see you have many other options if you want it on an angle.

    You should really look at buying a jigsaw, only like 40-50 bucks for a reasonable one. You could cut accurate enough angles with it if you are careful, and sand down any imperfections.

  7. #7
    FLAC
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    Why don't you just use that thing?

  8. #8
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    b/c plastic isnt very rigid

    at least not that plastic.... and i dont want any vibrations transferred to the frame, or any other negatives b/c the plastic is not very rigid....

    i will prolly use that piece until i can get an actual enclosure for it...

    where are jigsaws for $40-50?

  9. #9
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    Try Homdepot. Their low end models will be sub 50 bucks.

  10. #10
    FLAC
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    Don't buy a cheap jigsaw. I think Bosch has a 6.5A jigsaw for $100 or so and it's got manual scroll control and a light. There's one model that Bosch has that uses the motor's fan to blow chips out of the way too.

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