Today's Messages (on)  | Unanswered Messages (off)

Forum: Source
 Topic: Repairing old CDs and DVDs
Re: Repairing old CDs and DVDs [message #95867 is a reply to message #95864] Tue, 09 August 2022 10:55
Wayne Parham is currently offline  Wayne Parham
Messages: 18323
Registered: January 2001
Illuminati (33rd Degree)

Damage from surface scratches can be repaired by sanding and buffing. As long as you can remove enough material to remove the scratch without going deep enough to damage the data layer, it will work.

I've seen all sorts of stuff being used as sanding and buffing compounds, but I'd suggest using a product designed for the purpose. Headlight repair kits - used for UV damage - are perfect. There are also products designed specifically for CD repair. Just make sure to use one that sands and buffs rather than one that tries to apply some sort of surface coasting to fill-in the scratches and/or make the scratches less reflective.

But I must admit, I like to purchase a new CD when one gets damaged rather than to repair it. It's a price-versus-effort thing for me. Headlight lenses are pretty expensive, so they merit the effort of sanding and buffing required to fix UV damage. Compact disks are relatively inexpensive so unless it's a rare disk, I'd probably just spring for a new one.
Forum: Pi Speakers
 Topic: Pi 4 plans please
Re: Pi 4 plans please [message #95865 is a reply to message #94845] Tue, 09 August 2022 06:07
Dammizi is currently offline  Dammizi
Messages: 2
Registered: August 2022
Esquire
Hi Wayne! Been reading up on your design of the 4Pi and seems to convince me this should be my next Diy build! Would it be possible to send over the plans to build them?

Also I already own the 2226H drivers, but still considering which tweeters to buy for this project. Which drivers would you suggest which sound the least harsh? These will be used in a large room (8x5m) with very limited dampening ( stone walls and no carpets etc...)
Re: Pi 4 plans please [message #95866 is a reply to message #95865] Tue, 09 August 2022 10:36
Wayne Parham is currently offline  Wayne Parham
Messages: 18323
Registered: January 2001
Illuminati (33rd Degree)

You've got mail!

I'd suggest using the polyimide DE250-8 compression driver. The Eminence driver is good too, but the B&C driver is a little smoother. Go for it. Besides, the PSD2002-8 is unobtaium these days anyway.
Re: Pi 4 plans please [message #95868 is a reply to message #94845] Tue, 09 August 2022 11:51
Dammizi is currently offline  Dammizi
Messages: 2
Registered: August 2022
Esquire
Thanks Wayne! Looking forward to getting a start on this project soon! I'll go ahead and buy a pair of DE 250's once I get my head round how I'm going to build the cabinets. Very Happy

It's going to be a first for me to try veneering the cabs, but it seems like quite a doable job with a router and lots of patience! Cool



Current Time: Tue Aug 09 21:11:39 CDT 2022

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