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Ingenuity Needed: Cutting records with quality. Answered

It's lengthy, sorry, but it's worth it!

Let me preference this with,
I know this topic has surfaced before. Most of the forums and pages are filled with broken links to information, sold out products, and are all around rather worthless to return to. I'm posting this in hopes it stays a useful reference point.

For  a few years now, I have been looking at cutting disks playable on a record player. I found an 'ible a while ago (the original one I bookmarked has been removed) that showed how to make an needle assembly. It demonstrated making a record engraver by putting a staple through the center of a speaker. This tool kind-of worked, but had some quality issues, as well as speed. When you push to engrave the audio, you slow the table. Less pressure, less quality, more quality, less speed. The other issue I ran in to was keeping the groove tight enough to hold more than 20 seconds.

I'd like to construct a device that will cut CDs in to records with a good bit of accuracy, and give a second life to mis-burned disks (as well as some ancient unsupported linux disks...driver disks...early Windows builds...AOL disks...you get the idea)

Putting the proper spindle on a properly geared motor should resolve the speed issue on cutting. Having the cutting arm on a servo should resolve the length issue, my only quandary is quality.

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So, the point of this post, and the thing I'd like to have some input on is, How do I construct a cutting needle, that will offer some quality. I should refine that a little more - something that is going to transfer bass well.
~~~~~

I was not eager to puncture a speaker, so I modified the original plans. I placed the staple in a layer of plastic, and glued this to the speaker. The plastic gathered more of the vibration, and funneled it to the cutting head more accurately.

This did work relatively well, but I feel with a few extra minds, this process can be made better.

If this project ever sees the light of day, I'll make an 'ible, and cite any assistance.

-Spence

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Kiteman

6 years ago

If you've already had some success, it would be a good idea to post what you've done so far as an instructable.

That way, folk can work on improvements by referring to what you have already achieved.