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PostPosted: Wed Nov 22, 2017 4:17 pm 
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Joined: Tue Feb 21, 2017 11:13 pm
Posts: 3
Location: Victoria, BC, CA
Hello all,

First time poster here.

I have recently acquired a set of L100's that I am going to be restoring. I thought it would be very cool to put original grills back on them if I could find them at a reasonable price. Saw them on **bay but not ready to drop $450.00 on a set.

They look to me like a CNC machine could produce them for me if I knew the type of foam that was suitable. Anyone else tried this?

Idea's and suggestion are most welcome.

PK


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PostPosted: Wed Nov 22, 2017 4:19 pm 
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Joined: Tue Jun 14, 2016 8:33 am
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Location: Kingston, ON, CA
might not need a cnc machine. A jig and a dremel might work just as well.

You will need a very sharp blade.....or... compress the foam, cover it with a sheet when it is compressed and do the cut through the sheet, on the compressed foam. Or some variation thereof.

Like a set of boards with a slit space between them..you clamp the foam down... and you cut a strip down in the gap With a razor or the dremel, where the compressed foam is. A 45 degree cut on compressed foam will be 60 degrees or more when the foam is uncompressed. That kinda thing.

Foam is cheap, regarding experimentation.

Might take a few tries to get it right, but it might be doable for cheap.

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(Ken Hotte, of) Teo Audio


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PostPosted: Wed Nov 22, 2017 4:44 pm 
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Joined: Thu Jan 13, 2011 11:29 am
Posts: 496
Location: St.Catharines, ON, CA
Done with a hot wire at the factory.I think an article at lansingheritage tells why this was done.

Gary


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PostPosted: Wed Nov 22, 2017 5:27 pm 
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Joined: Sat Mar 22, 2014 5:11 am
Posts: 46
Location: Burlington, ON, CA
Try here. I would think you would have to very committed with many tries to get it right on your own.

http://www.foamspeakergrilles.com/home


good luck


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PostPosted: Wed Nov 22, 2017 5:32 pm 
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Joined: Tue Feb 21, 2017 11:13 pm
Posts: 3
Location: Victoria, BC, CA
Thanks for the replies. Now that I think about it I think even a CNC machine wood pole the foam and not get perfect cuts using a saw blade I think would produce Les than Factory results as well. The hot wire makes perfect sense. does anybody know what type of foam or where to get the foam from.


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