Pre-Release | Mother's Day Part 2: Edge Lit LED Sign

So works in Chrome, but not safari or mobile safari. No idea why…

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wow - absolutely gorgeous. Thx for the tip wrt mica powder in UV resin. I worried that putting anything in uv resin might block out the light so it wouldn’t cure. Thx for letting me know it is do-able :slight_smile:

this is a good resource for UV epoxy - http://epoxyjewelry.com/UV-Supplies.html . It’s probably the world’s worst website, but the UV epoxy is really good. Excellent doming. And, for those of us who are mess-challenged, be sure to put some wax paper under your project before curing under a uv lamp (yes, I have a lump of dripped epoxy permanently stuck to a work surface so I speak from experience here :confounded: )

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Depending what your work surface is, often you can pop epoxy loose by wedging a sharp item like a plastic scraper/razor underneath an edge. Just get the edge loose and often the rest of it will pop right up. I like using a glass tabletop surface for resin work because if you do drip or spill, you can either clean up right away with acetone which won’t damage the glass, or let it cure then just run a razor scraper over the table and it comes right up.

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thx - it’s glass, so I’ll give it a try :slight_smile:

Soooo cool!!!

Discourse has had this issue with videos in Safari for a while. Presumably the @discourse people will fix it at some point. I think the problem is that the server sets the Content-Disposition to “attachment”:

$ curl -I /uploads/db6859/original/3X/7/f/7f89d335777d58b197db6513ed918f1bc65f0245.mp4
HTTP/1.1 200 OK
Date: Mon, 01 May 2017 22:07:36 GMT
Content-Type: video/mp4
Content-Length: 5107512
Connection: keep-alive
Last-Modified: Mon, 01 May 2017 17:37:16 GMT
Content-Disposition: attachment; filename="Flashing.mp4"
Cache-Control: private
Accept-Ranges: bytes
Discourse-Proxy-ID: app-router-tiehunter02
Strict-Transport-Security: max-age=31415926
Server: NetDNA-cache/2.2
X-Cache: MISS

Safari users can right-click on the blank spot and choose “Open Video in New Window”; this will cause the video to download (due to the “Content-Disposition: attachment”) and the downloaded video will play fine. I don’t know why Safari refuses to play embedded videos when they’re marked as attachments, but it’s been an issue for years.

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Of course Discourse could use the HTML5 video tag in which case the problem goes away… Because 2017…

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But they do use the <video> tag. Here’s the HTML that Discourse is using:

<p>Here it is flashing:<br>          <video width="100%" height="100%" controls="">
            <source src="/uploads/db6859/original/3X/7/f/7f89d335777d58b197db6513ed918f1bc65f0245.mp4"></source>
            <a href="/uploads/db6859/original/3X/7/f/7f89d335777d58b197db6513ed918f1bc65f0245.mp4">/uploads/db6859/original/3X/7/f/7f89d335777d58b197db6513ed918f1bc65f0245.mp4</a>
          </video>
</p>

The problem is that when a video mentioned in a <source> tag is served with the “Content-Disposition: attachment” header, Safari refuses to display it. It’s a Safari bug, I think. (I’m not completely certain; the semantics of content-disposition were developed for email, not the web, and I’m not sure how it’s supposed to interact with the HTML5 <video> tag. I think old versions of Firefox also had the same problem. But all non-Safari browsers today allow embedding videos that are set as attachments, so Apple should change Safari to match.)

In any case, @discourse should be able to work around it by changing their Content-Disposition header.

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Why? The rest of the world is wrong and should change their implementations. :stuck_out_tongue_winking_eye:

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The video is great! Having colored LEDs make such a difference.

Videos really shouldn’t be uploaded as attachments in Discourse. Discourse doesn’t do a good job of delivering the video contents. I get most of the video, but only 2/3rds of it, because the streaming of it stops at 2/3rd. People really need to stop uploading videos to Discourse as attachments, and just provide links to the video uploaded into YouTube.

I’ve had problems with videos people have posted, and I’m using Chrome 58 on Windows 10.
(sorry if that sounds like a soapbox, but … well, video content delivery is my jam)

Yep. While safari does a bad job of it, it shouldn’t be displayed that way. I serve HTML5 video in my applications and that’s not how we do it, since that’s not how the standard specified it.

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Cute project.

Very nice piece, I’m sure she will be pleased. :heart_eyes:

Would you have a link to those LEDs? Thanks!

Here’s a link to @jamesdhatch’s original guidance. There are a number of suppliers for about the same price, all in Malaysia or China (don’t be in a hurry).

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There are many online animated GIF generators and I try to use them if there is something particular to highlight and I don’t want to do a full video post on YouTube. They can be very effective. @karaelena does a great job at them.

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Thanks! Good idea–I will do that next time. Not planning on starting a YouTube channel just for a couple short bits like this, GIF sounds like the way to go.

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I use Vimeo and post my videos unlisted and then take the embed link and just paste that into my posts here.

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Everything does.

To think… next year my kids will be able to do something like this for my wife. Sure beats the heck out of the candy dish I made in art class when I was a kid!

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