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Quick update - by al1

A project log for PICTIL

Remake of the TIL311 hex LED display with recent technology.

alexAlex 11/08/2015 at 22:4810 Comments

Just quick update, because I will order first prototype boards now, because the square inch prize requires assembled projects.

The only thing I changed to last time is the orientation of some LEDs. In this first prototype I will not try charliepixeling or scanning, but maybe later (I will kept that in mind). Out of curiosity I tried black solder mask in the renadering and ( @Andrew Starr ) this looks quite good.

Discussions

davedarko wrote 11/09/2015 at 08:37 point

you could drop it in red resin @Yann Guidon / YGDES ;)

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Alex wrote 11/09/2015 at 16:59 point

That wouls also solve the problem of mechanical weak pins. mh...

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Yann Guidon / YGDES wrote 11/09/2015 at 23:29 point

yup but who will carve a mold ? and how do you manage the inevitable bubbles ? and which resin is best for this purpose ?

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davedarko wrote 11/10/2015 at 08:57 point

Silicone mold of an original? Dripping slowly and maybe put it in a vacuum chamber. No idea, I just like watching youtube videos.

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Andrew Starr wrote 11/09/2015 at 06:20 point

If you decide to go through with the black solder mask, I recommend pcbway.com. I use them because they are a factor of 3 or 4 times cheaper than OSH Park (which is important if, like me, you're making a boatload of small boards), quality is good, and so is customer support.

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deʃhipu wrote 11/09/2015 at 10:51 point

They really have earned my rage for spamming me aggressively here on hackaday.io. I'd rather go to any other pcb maker.

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Alex wrote 11/09/2015 at 16:58 point

Black solder mask is not that rare. Also dirtypcbs.com or elecrow.com do offer them.

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Andrew Starr wrote 11/09/2015 at 19:41 point

Yikes. I wasn't aware they did that. Well, there's also dirtypcbs.com - they can do a black solder mask, and prices look pretty good.

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deʃhipu wrote 11/09/2015 at 19:48 point

There is this convenient comparison of pcb makers: http://pcbshopper.com/

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Yann Guidon / YGDES wrote 11/09/2015 at 03:13 point

It lost the "TIL appeal" with the black solder mask ;-) But the point has never been to make a perfect clone, but to make a better replacement. And in this regard, you're delivering ;-)

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