How i replaced my dust cap... Vol 1 - diyAudio
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Old 30th October 2003, 02:24 AM   #1
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Default How i replaced my dust cap... Vol 1

I got a wild hair to fix up these speakers that had been abused by their former owner, i got them for free so what the hey. They are ADS inc. from 1986 model number L470/2. anyways they had the surround completly separated from the basket so i bought some glue (crafters pick the ultimate, big thanx to MarkMcK for the info). and fixed that prob. the dust cap was all crushed in and i read a thread about replacing the dust cap a few days ago and got some ideas.

the firsto photo (i've never posted pictures so please excuse any ignorance you may encounter) is of the cut out dust cap, i used a razor to remove as much as i could, there was even dust under the dust cap! I could see the voice coil inside, it was an aluminum one.
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File Type: jpg no dust cap #1.jpg (82.2 KB, 210 views)
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Old 30th October 2003, 03:15 AM   #2
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photo didn't show up. hmmmm.
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Old 30th October 2003, 03:17 AM   #3
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this is where i got the "new" dust cap from. yes the bottom of a pepsi can, used my dremel and cut it out as neatly as i could. i figure aluminum is light enough for my purposes.
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File Type: jpg source of new dust cap.jpg (80.9 KB, 200 views)
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Old 30th October 2003, 04:41 AM   #4
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still new to this... anyways, after i cut the piece off the pepsi can i took my dremel to it to make it semi even, no sharp edges. the i laid a piece of sand paper out flat and made sure it was even and flat on the bottom.
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File Type: jpg sanding the bottom flat.jpg (81.9 KB, 160 views)
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Old 30th October 2003, 04:43 AM   #5
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Then i jammed some holes in it with a leather punch thingy, like 10 or 15 holes, then i sanded that all nice so no sharp edges were poking out. it should keep the voice coil nice and cool, since it isnt vented on the magnet. but what if dirt gets inside the coil..... hmmmm....
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File Type: jpg holes for ventilation.jpg (80.4 KB, 161 views)
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Old 30th October 2003, 04:45 AM   #6
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took some stretchy black cloth and glued it with the same glue as i used on the surround. painted it on with a brush on all the top and sides. then i rubber banded it and let it sit for 10 minutes or so. then i cut around the edges.
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File Type: jpg gluing cloth to dust cap.jpg (82.6 KB, 144 views)
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Old 30th October 2003, 04:46 AM   #7
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after i cut it off, i brushed some glue on the inside rim of the cap and folded the cloth around to stick... which it did very well.

here is the finished dust cap ready to get glued.
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Old 30th October 2003, 04:48 AM   #8
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sorry that was the wrong pic. i really suck at this. here is the pic i wanted to show. that was the final gluing.
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Old 30th October 2003, 04:51 AM   #9
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I hope it stays on. it seems pretty sturdy on there. i glued the edge of the cap all the way around. I will re-edit all these posts once i am not being moderated for being a newbeeeee! thanks for your patience.

Tell me what you think!
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Old 31st October 2003, 01:52 AM   #10
Bose(o) is offline Bose(o)  Canada
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Hey,

For posting pictures you are way ahead of me! I keep promising pictures, yet never post any. I loved reading about your adventure...perhaps more to follow?
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