Dr Dub cuts on Laserdisc

[drdub]

Hello mates,

We experimented a little bit with laserdiscs in the past few days. Maybe it's interesting for you guys;)

We got pretty good results with preheating the discs to 45-50° and using more stylus heating than for vinyl. We used a diamond stylus for it.
Does anybody know how durable these laserdiscs will be? How many times can they be played?

best regards,
Dub

[edaudio]

I have only embossed on polycarbonate (CD/DVD blanks) with a very old RCA mono head. What progress I've made seemed to point toward using a standard cutting stylus but in reverse (not cutting but embossing). I haven't really experimented with heat, because that type of cutting stylus has very little room to put a few turns of nichrome.

I had looked into diamond stylus - I would think that last generation of Neumann DMM systems would be well suited to cutting into polycarbonate, which is a very robust plastic.


That said, my short term focus has been on creating proper record electronics and rewinding the head coil and adding a ceramic element for feedback.

Also, while there is not shortage of CD and DVD blanks, I am very excited about the PVC blanks. My first test - cutting PVC - was sooo much better than embossing polycarbonate, that I am persuing that path for the time being, which means setting up a vacuum system for the chip.