dvd
dvd


Author Comment Last activity Moderation
VickiBaez "Try another camera, in comparison everything will be noticeable " | Read more » over 1 year ago
msuphysicsformcb "Update: I just looked through the other spectra posted that are tagged as white LED and they all look similar to mine, with 3 peaks instead of 2 th..." | Read more » over 1 year ago
Naumandhak12 "Separate the layers of the disc. Insert a butter knife in between the two layers of the CD, and gently wiggle it to pry the layers apart. " | Read more » almost 2 years ago
Bronwen "Ah! When we did a million of these at makerfaire a few years ago I found a strategy worked for me was to flex the dvd back and forth for a while fi..." | Read more » almost 2 years ago
kgradow1 "To get the film off, try running a sharp exacto knife very lightly under one edge. If it starts to split it's very hard to remove it without scrat..." | Read more » almost 2 years ago
Nelari "I did just that, four months ago, so that problem has already been solved – but thanks all the same. However, I could not make sense of Spectral Wo..." | Read more » over 2 years ago
Skorex "Can you cut the bottom side, glowing with rainbow colors? Thank you  On Sat, May 25, 2019 at 6:26 PM \<notifications@publiclab.org> wrote: ..." | Read more » over 2 years ago
jd2602b "Excellent work, the DVD grating offers mentioned advantages. " | Read more » almost 3 years ago
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Nelari " Thank you; I now have a meter that seems to work OK. I gave up on the paper version, though – it was just too wobbly. I used wood, instead, to get..." | Read more » almost 3 years ago
warren " Hi! The bottom side with the purple tint is the one you want. There are some good pictures on these pages: https://publiclab.org/notes/warren/12-..." | Read more » almost 3 years ago
Bronwen " Oh, wow, I totally missed the mark, that's even cooler. " | Read more » about 3 years ago
warren "Although, "tell these apart" may also be a relative term. When you see the light or dark regions, you dont see the pits themselves but rather diffe..." | Read more » about 3 years ago
warren "And to answer a question above, I /think/ this would put all "long" pits in the 1 regions, and all "short" pits in the 0 regions. So, you'd have to..." | Read more » about 3 years ago
warren "Oh, actually this technique doesn't use a laser cutter - it forms an image by copying data onto the DVD at differing densities, so that the actual ..." | Read more » about 3 years ago
Bronwen " You know what, forget what I said about kerf width-- I'm used to the range I listed, but I'm finding some charts for lasers that makes it seem lik..." | Read more » about 3 years ago
Bronwen "Oh cool, this is a super interesting question. I think this would be tricky to do at the scale that our calibration slides currently have (the rul..." | Read more » about 3 years ago
jaksch "Haha @warren thanks :) I agree, it's very similar to the plab v3! Maybe someone drew the laser cutting and the vertical slit was just a mistake. ..." | Read more » almost 4 years ago
stef "You might do a search for notes by @stoft 're the plab v3 model. There are drawings that he produced and excellent discussions. The plab v3 mounts ..." | Read more » almost 4 years ago
warren "This kit looks really interesting! It's not one of ours, but seems possibly based on one of ours, the #dsk3 -- i'd be interested to learn more! " | Read more » almost 4 years ago
warren "This is really helpful, yes! Great sleuthing! " | Read more » almost 4 years ago
jaksch "Switched the DVD-RW for DVD+R and tadaa works like a charm. So sorry for the kinda pointless topic, but maybe the info that DVD+RW does not work i..." | Read more » almost 4 years ago
jaksch "Update: I build a quick and dirty horizontal slit (approx 1mm wide) and indeed the image is more broad now. However, it is very dark. Below is a p..." | Read more » almost 4 years ago
tmanmerlin "Here is a view of my split DVD bottom (clear) and my split DVD-R (purple) " | Read more » almost 4 years ago