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Facebook Aunt posted:Is there any way to test the UV coating on sunglasses? Like look at one of those UV light pens and if it is invisible that means the glasses are working. Assuming the lenses are made from CR39 polycarbonate there isn't really a need for a coating - it's basically opaque to UV light below 360nm.
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Jun 12, 2017 06:22
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JointHorse posted:Another sleepless night, another set of dubious electronics: I've bought a bunch of Arduino-stuff (mostly 3d printing related) from RobotDyn on AE and I've been impressed with the build quality - they also use nice-quality screw terminals, unlike most cheapo Arduino/RAMPS clones.
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May 27, 2018 08:25
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 Recommended for you I wonder if da sharez0ne have considered broadening their merch lines edit: oh my  Dia de Pikachutos fucked around with this message at 11:45 on Aug 2, 2019 |
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Aug 2, 2019 11:43
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What about... ashtrays loving?
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Aug 3, 2019 00:07
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Oh gently caress yes
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Aug 5, 2019 11:44
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Snowy posted:Supposing one might want to send someone in need a possibly overpowered green laser are there any especially good ones on AliExpress? Just be aware that it only takes a relatively low powered laser to potentially permanently damage eyesight (both directly and via the high energy of the reflected dot), so if you're intent on doing this at least get yourself some laser safety glasses from somewhere that isn't Ali. Reflected lasers can also damage digital camera sensors as well: https://www.ilda.com/camera-sensor-damage.htm Dia de Pikachutos fucked around with this message at 07:46 on Nov 17, 2019 |
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Nov 17, 2019 07:42
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If you run the earlier image through topaz sharpen AI's stabilization setting it cleans up pretty well: If you're happy shooting in black and white, you can probably get better results by using a green colour filter. The lens is probably based around an achromatic doublet, which are usually designed so that they are corrected for spherical aberration at about that wavelength. Red and blue come into focus at a slightly different distance, which is why you get the green/purple colour fringing.
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May 31, 2020 09:25
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HELLOMYNAMEIS___ posted:I've been quite happy with my Ganzo multitool. Yeah I have that exact model too and it's p.good for the price imo
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Sep 21, 2020 11:12
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DRINK ME posted:
Yeah, they're a bit of fun - my hands shake too much to do the SMD ones, but I have done a few of the $2 through-hole ones: Metal detector (works, super loud): https://www.aliexpress.com/item/32961548626.html NE555 "piano" (hilariously out of tune): https://www.aliexpress.com/item/4001294346983.html Tesla Coil (unbelievably underwhelming): https://www.aliexpress.com/item/32987629991.html
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Mar 19, 2022 11:22
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I bought a drone: https://a.aliexpress.com/_m0k5FVi It's surprisingly functional, although as expected the "4k" camera is missing a decimal point before the 4 and the range on the wifi video feed is a lot shorter than I expected. Was great on the weekend - my nieces (8yo and 10yo) had a blast flying it around at the park, and they didnt manage to crash it. 5 stars.
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Nov 13, 2023 21:57
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REMEMBER SPONGE MONKEYS posted:Like this, perhaps? Toiletbots seem legit https://a.aliexpress.com/_mMxr4X4
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Feb 22, 2024 05:22
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mobby_6kl posted:IMO worth it over the smaller one like (like https://www.aliexpress.com/item/1005006380068665.html) and it's a good price which goes up quickly for larger ones. I ordered this exact thing a few days ago! Hopefully it won't be too terrible, but for $20 I'm not too optimistic.
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Apr 14, 2024 10:08
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MarcusSA posted:Really solid deal for the 16gb / 512 model for $100. Yeah so did I - it was showing "1 left" when I did the checkout so I figure there's a 50/50 chance I get one. More like $200 in AUD though 
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Apr 16, 2024 01:34
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