Post by Darth Chasm on Jul 12, 2019 10:27:27 GMT -5
As some of you may know, I make the embedded LED crystals sold by TCSS. Well the next step in evolution for those would naturally be smart LED embedded crystals that work with pixel setups. These feature smart LEDs with embedded WS2812 IC in a 5050 package on 10mm diameter PCBs. They operate in the same color order as pixel strips. The tiny PCBs are embedded directly into the epoxy resin with an extremely strong bond. The PCBs have 6 pads offering 2 positions each for +5v and GND and one pad each for Data In and Data Out.
This new crystal is considerably bigger than the ones produced previously measuring roughly 10mmx10mmx35mm (0.39"x0.39"x1.378")
While these could never replace real crystals, they do provide a very strong second option that is "all-in-one," making them easier to incorporate into a setup.
how much are they, DC? was thinking of upgrading the one that came w/my PP/7C Starkiller...
Retail price will ultimately be up to Tim. But as the regular 5mm rgb crystals are $10, you can expect to pay a bit more for these. The pixels are more expensive than regular leds and I'm using a different resin which is also a bit more expensive and requires more production time.
I really like this idea! Are the bubbles in the crystals intended for diffusion or are they an unavoidable part of the process?
They are avoidable through the use of a pressure pot, but it was decided to leave them in for a number of reasons, one being diffusion. When left in, the amount and size is random and not really controllable. I am however, using a new resin which has reduced the amount and overall size.
Here you can see some of the randomness in a few rejects.
Post by dayadjocen on Aug 13, 2019 18:05:54 GMT -5
Ok so... here are my initial thoughts: whoa. Yeah you heard me: WHOA.
So first. REALLY nice job on the resin. These things look like quartz. While the bubbles are present these things are super convincing unlit at first glance. And yes the bubbles help with diffusion nicely.
Second: they ARE large so work well in larger chambers but would be a struggle to fit into compact chambers. I actually have revised plans for my Graflex custom chamber and am going to use one of these instead of a real quartz.
Third: there is VERY little light loss in transfer from the SMD to the crystal unlike glueing a 5050 segment of a strip to the back of a quartz or sticking a PL9823 into the cavity in a shapeways crystal.
These things are SLICK.
Biggest feedback to you Darth Chasm is this: I want additional sizes! Namely some shorter variants like 15-20mm vs 35mm length, maybe even a step or so down in diameter ( if need be using a 3535 SMD instead of a 5050)? In other words, if you could somehow get these to the more standard Goth chassis shapeways sized crystal; I'd be buying these by the truckload.
These are some seriously cool components to step up the ease and beauty of pixel builds.
I am thrilled with the two I bought and WILL be buying more.
Last Edit: Aug 13, 2019 18:58:29 GMT -5 by dayadjocen
We will probably introduce more sizes, but want to assess the demand first with this initial design and make plans from there.
I'll keep an eye out for pics
This actually solves one dilemma I was dealing with on my Graflex bespoke chamber which was holding the real quartz stable through impact. I was going to do a sleeve + set screw setup but now with these I no longer have to. I can use adhesive and glue the base in from the bottom of the chamber and have a more "floating crystal" look which is what I was originally wanting before I ran into quartz stabilization issues.
So this DEFINITELY eases my chamber build with almost NO sacrifice to beauty and maybe even enhances it because it is less material contact covering the Illumicore than it would need to be for real quartz.
I am SUPER happy to hear about you considering additional sizes. I am SUPER stoked.
Most of the fancy chassis I do or use call for crystals around 8-9mm (tho sometimes 10) in diameter and around 20ish mm in length. Sometimes 20-25...
So having like a hair smaller diameter and the ~20mm or so range would be AMAZINGLY versatile.
Post by Darth Chasm on Aug 13, 2019 19:27:45 GMT -5
Glad it's making your build a bit easier. That's the whole idea! Yeah, personally, I use smaller crystals and the original 5mm RGB ones are done in the sizes I usually go for (5-7/8ish mm). But the request for this first round of the new crystals was to go a bit bigger.