dented speaker dust caps...

[jsdspif]

i had a dented speaker dustcap. I've had them for 50 years. I learned hold a vacuum up to them and before you even contact vaccum tube the dent will be "sucked out". At least I just did 3 small tweeters, a 8 inch and a 12 inch speaker. I just learned that trick 2 days ago

[Animal]

you should do a youtube video of this. I'm just not sure people would find it by searching "dust cap". I just know there are far too many dented dust caps in the world today.

[jsdspif]

that's where I saw it, i think I searched on google removing dent from tweeter dustcap and it came up. I had searched in the past every now and then and never had seen the one I saw recently. I did one a while back and I think i used the top of a pin, and I have also used really sticky tape. I was thinking this time just barely a drop of glue with dental floss, and pull out the dent and cut off the floss . At first I was thinking the video must be fake because it happens alot so I tried it and it worked. The most recent one that I just fixed I accidentally bumped the cap with my finger. The tweeter has a surround on it like a woofer which I hadn't seen before but it has turned to dust. I got new surrounds for it but they fold them in half and then stuff them in a matchbook sized box, think like 1" x 2" by 3/8 thick (to save on packaging material?) but that leaves the surrounds a crumpled mess that are unusable.

[Animal]

that's where I saw it, i think I searched on google removing dent from tweeter dustcap and it came up. I had searched in the past every now and then and never had seen the one I saw recently. I did one a while back and I think i used the top of a pin, and I have also used really sticky tape. I was thinking this time just barely a drop of glue with dental floss, and pull out the dent and cut off the floss . At first I was thinking the video must be fake because it happens alot so I tried it and it worked. The most recent one that I just fixed I accidentally bumped the cap with my finger. The tweeter has a surround on it like a woofer which I hadn't seen before but it has turned to dust. I got new surrounds for it but they fold them in half and then stuff them in a matchbook sized box, think like 1" x 2" by 3/8 thick (to save on packaging material?) but that leaves the surrounds a crumpled mess that are unusable.

if you think about this, the concept would be the same at removing dents from cars. like hail damage. it would just take a much larger vacuum.

[Antknot]

that's where I saw it, i think I searched on google removing dent from tweeter dustcap and it came up. I had searched in the past every now and then and never had seen the one I saw recently. I did one a while back and I think i used the top of a pin, and I have also used really sticky tape. I was thinking this time just barely a drop of glue with dental floss, and pull out the dent and cut off the floss . At first I was thinking the video must be fake because it happens alot so I tried it and it worked. The most recent one that I just fixed I accidentally bumped the cap with my finger. The tweeter has a surround on it like a woofer which I hadn't seen before but it has turned to dust. I got new surrounds for it but they fold them in half and then stuff them in a matchbook sized box, think like 1" x 2" by 3/8 thick (to save on packaging material?) but that leaves the surrounds a crumpled mess that are unusable.

if you think about this, the concept would be the same at removing dents from cars. like hail damage. it would just take a much larger vacuum.

The best 100% efficient vacuum could do is 14.7 psi at sea level. It might get some dense but it won’t get all of them. I’ve seen toilet plungers used for large shallow, dense and dry ice for hail damage. The dry ice causes the metal to shrink and return to normal after it had been stretched by the hail strike.

[Animal]

that's where I saw it, i think I searched on google removing dent from tweeter dustcap and it came up. I had searched in the past every now and then and never had seen the one I saw recently. I did one a while back and I think i used the top of a pin, and I have also used really sticky tape. I was thinking this time just barely a drop of glue with dental floss, and pull out the dent and cut off the floss . At first I was thinking the video must be fake because it happens alot so I tried it and it worked. The most recent one that I just fixed I accidentally bumped the cap with my finger. The tweeter has a surround on it like a woofer which I hadn't seen before but it has turned to dust. I got new surrounds for it but they fold them in half and then stuff them in a matchbook sized box, think like 1" x 2" by 3/8 thick (to save on packaging material?) but that leaves the surrounds a crumpled mess that are unusable.

if you think about this, the concept would be the same at removing dents from cars. like hail damage. it would just take a much larger vacuum.

The best 100% efficient vacuum could do is 14.7 psi at sea level. It might get some dense but it won’t get all of them. I’ve seen toilet plungers used for large shallow, dense and dry ice for hail damage. The dry ice causes the metal to shrink and return to normal after it had been stretched by the hail strike.

i wonder if you attached a super high frequency (or low frequency) that brings the metal in a car hood to its acoustic softening stage, AND THEN you applied a vacuum at 14.7 psi?