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-   -   Reforming the dome over a speaker cone? (https://www.diybanter.com/electronics-repair/184352-reforming-dome-over-speaker-cone.html)

n cook November 30th 06 02:48 PM

Reforming the dome over a speaker cone?
 
Any car panel-beaters on board.
You know thew ones. A large angular dent in a car body panel and you hand
over some cash and they say turn round a second/ walk round the block. Then
they kick the panel, but they know exactly which spot to kick.
Working speaker but the large perforation-type front grill kicked in or
dropped so it touched the cosmetic dome at the centre of the cone leaving a
number of depressions.
I tried heating with a hot air gun to maybe soften and sucking with a vacuum
cleaner hose - no good.
Tried some dabs of hot-melt in the dents, alowing to cool and pulling in
conjunction with 1 pound weight in some undeformed areas re-created the dome
and then lightly heated with hot air to remove the glue - but didn't cleanly
release and had to dust with toner powder to matt it out - but otherwise a
re-formed dome. Anyone been here before with better ideas. ?
Weights and vacuum cleaner ?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/





[email protected] November 30th 06 09:01 PM

Reforming the dome over a speaker cone?
 
N Cook wrote:

Any car panel-beaters on board.
You know thew ones. A large angular dent in a car body panel and you hand
over some cash and they say turn round a second/ walk round the block. Then
they kick the panel, but they know exactly which spot to kick.
Working speaker but the large perforation-type front grill kicked in or
dropped so it touched the cosmetic dome at the centre of the cone leaving a
number of depressions.
I tried heating with a hot air gun to maybe soften and sucking with a vacuum
cleaner hose - no good.
Tried some dabs of hot-melt in the dents, alowing to cool and pulling in
conjunction with 1 pound weight in some undeformed areas re-created the dome
and then lightly heated with hot air to remove the glue - but didn't cleanly
release and had to dust with toner powder to matt it out - but otherwise a
re-formed dome. Anyone been here before with better ideas. ?
Weights and vacuum cleaner ?


Leaving it alone usually works well enough. Pressing the cone right
back should ensure its up enough not to foul the pole piece. Doesnt
look so hot at sale time, but as you say they can be difficult to get
out.


NT


TimPerry November 30th 06 10:50 PM

Reforming the dome over a speaker cone?
 
N Cook wrote:
Any car panel-beaters on board.
You know thew ones. A large angular dent in a car body panel and you
hand over some cash and they say turn round a second/ walk round the
block. Then they kick the panel, but they know exactly which spot to
kick.
Working speaker but the large perforation-type front grill kicked in
or dropped so it touched the cosmetic dome at the centre of the cone
leaving a number of depressions.
I tried heating with a hot air gun to maybe soften and sucking with a
vacuum cleaner hose - no good.
Tried some dabs of hot-melt in the dents, alowing to cool and pulling
in conjunction with 1 pound weight in some undeformed areas
re-created the dome and then lightly heated with hot air to remove
the glue - but didn't cleanly release and had to dust with toner
powder to matt it out - but otherwise a re-formed dome. Anyone been
here before with better ideas. ?
Weights and vacuum cleaner ?


carefully cut out dust cover (the dome).discard. glue on new dust cover.



dave December 1st 06 02:02 AM

Reforming the dome over a speaker cone?
 
I don't know why the vacuum cleaner does not work. It has always worked for
me in the past. Maybe you need a stronger vacuum and a better seal to the
dome.

DaveL


"TimPerry" wrote in message
...
N Cook wrote:
Any car panel-beaters on board.
You know thew ones. A large angular dent in a car body panel and you
hand over some cash and they say turn round a second/ walk round the
block. Then they kick the panel, but they know exactly which spot to
kick.
Working speaker but the large perforation-type front grill kicked in
or dropped so it touched the cosmetic dome at the centre of the cone
leaving a number of depressions.
I tried heating with a hot air gun to maybe soften and sucking with a
vacuum cleaner hose - no good.
Tried some dabs of hot-melt in the dents, alowing to cool and pulling
in conjunction with 1 pound weight in some undeformed areas
re-created the dome and then lightly heated with hot air to remove
the glue - but didn't cleanly release and had to dust with toner
powder to matt it out - but otherwise a re-formed dome. Anyone been
here before with better ideas. ?
Weights and vacuum cleaner ?


carefully cut out dust cover (the dome).discard. glue on new dust cover.




n cook December 1st 06 10:59 AM

Reforming the dome over a speaker cone?
 
dave nospam wrote in message
. ..
I don't know why the vacuum cleaner does not work. It has always worked

for
me in the past. Maybe you need a stronger vacuum and a better seal to the
dome.

DaveL


"TimPerry" wrote in message
...
N Cook wrote:
Any car panel-beaters on board.
You know thew ones. A large angular dent in a car body panel and you
hand over some cash and they say turn round a second/ walk round the
block. Then they kick the panel, but they know exactly which spot to
kick.
Working speaker but the large perforation-type front grill kicked in
or dropped so it touched the cosmetic dome at the centre of the cone
leaving a number of depressions.
I tried heating with a hot air gun to maybe soften and sucking with a
vacuum cleaner hose - no good.
Tried some dabs of hot-melt in the dents, alowing to cool and pulling
in conjunction with 1 pound weight in some undeformed areas
re-created the dome and then lightly heated with hot air to remove
the glue - but didn't cleanly release and had to dust with toner
powder to matt it out - but otherwise a re-formed dome. Anyone been
here before with better ideas. ?
Weights and vacuum cleaner ?


carefully cut out dust cover (the dome).discard. glue on new dust cover.




I think it may have done , click noise , but I didn't think of getting some
clear hose and flipped back immediately to previous state on removing hose.
Next time I may try with clear tube and weights.
Later I was thinking of a funnel of about right size for the whole dome ,
and connecting to vacuum

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/



[email protected] December 1st 06 12:52 PM

Reforming the dome over a speaker cone?
 
I have used fine needles with success.
You push the needle through the dome and pry the dent out.
Sometimes it works, but when it doesn,t work I just put on a new dust
cover.

Ray J
On Fri, 1 Dec 2006 10:59:43 -0000, "N Cook"
wrote:

dave nospam wrote in message
...
I don't know why the vacuum cleaner does not work. It has always worked

for
me in the past. Maybe you need a stronger vacuum and a better seal to the
dome.

DaveL


"TimPerry" wrote in message
...
N Cook wrote:
Any car panel-beaters on board.
You know thew ones. A large angular dent in a car body panel and you
hand over some cash and they say turn round a second/ walk round the
block. Then they kick the panel, but they know exactly which spot to
kick.
Working speaker but the large perforation-type front grill kicked in
or dropped so it touched the cosmetic dome at the centre of the cone
leaving a number of depressions.
I tried heating with a hot air gun to maybe soften and sucking with a
vacuum cleaner hose - no good.
Tried some dabs of hot-melt in the dents, alowing to cool and pulling
in conjunction with 1 pound weight in some undeformed areas
re-created the dome and then lightly heated with hot air to remove
the glue - but didn't cleanly release and had to dust with toner
powder to matt it out - but otherwise a re-formed dome. Anyone been
here before with better ideas. ?
Weights and vacuum cleaner ?

carefully cut out dust cover (the dome).discard. glue on new dust cover.




I think it may have done , click noise , but I didn't think of getting some
clear hose and flipped back immediately to previous state on removing hose.
Next time I may try with clear tube and weights.
Later I was thinking of a funnel of about right size for the whole dome ,
and connecting to vacuum



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