NELEM III --September 11-13, 2015

[Fearless]

Preview of my two lasers and led critters. I only have 3 songs programmed. Brad do do have a DMX mixer board that I can control these things on the fly? They are universes 1-10 486 channels each.

[Bradfo69]

That's a heck of a lot of universes and channels..... Are you sure you asked that question right? That's a major sized board.

To answer the question... yes I have a couple of DMX boards and can bring them. The Behringer LC2412 is probably the closest thing to what you are looking for.

[Fearless]

It's 1620 RGB channels-4860 channels total. They run on a E1.31 ethernet protocol on their own network boards (unicast on two ip address). If it too much, I can just program a few loops and hit them at appropriate times. The Behringer sounds like too few channels, unless we can some how group them, but even one "critter" has six "arms" of 27 RGB LEDs--486 channels total.

[Bradfo69]

I don't profess to be a DMX guru and am quite honestly moving away from fiddling with boards to a software solution and am currently using Chauvet ShowXpress which is really only 1 universe and 512 channels but, is suitable for what I do since most of my fixtures, at the most, have 16 channels. (Mainly moving heads.)

[buffo]

Fearless: get in touch with DJMatt here on PhotonLexicon. He has an awesome DMX board that he is looking to sell. It will probably do everything you need, and last time I checked he had a very good price on it.

FYI, that many channels is absurdly complex if you want to run everything all the way back to the board as DMX. If you've broken it up using Artnet and have controllers in the field to convert the Ethernet to DMX at the fixure, that's completely different.

Adam

[Fearless]

Hi Adam,
This entire project is absurdly complex--from the 8 foot laser robot and the led critters which when done will be 9,720 channels and 10 universes. I'll do the programming all in software. I had to build out an entire ethernet network with a hub and 4 DMX boards each with a separate ip address. The nice thing is I can power the leds via cat 6 cable as the DMX signal is only 2 wires, the rest I use for 12 volt power.

[krazer]

Hi everyone-
Wanted to give an update from the MIT side.

So far we have a car with 5 of us (mix of undergrad/grad students and staff) planning to come Saturday afternoon to help with setup and generally participate in the technical aspects of laser shows before the show starts. Not planning to bring any projectors, we can bring some small tesla coils if you want otherwise we will leave them at MIT for the Sunday tours. It is a little unclear exactly what the plans are in terms of setup (I see some setup will be done Friday, the pig goes in Saturday morning, and the shows start after dinner) but we are thinking to show up around 2pm.

For your trip back to MIT, I have some technical demos set up, but I am only going to be able to fit ~5 people in the lab at one time so we may have to do some rotations depending on how many people are planning to come to MIT. We can also do tours which can accommodate as many as we want of course.

Shal we say that the MIT tours will start at 2pm and end with the technical demos at around 3pm? We can meet at the MIT museum (see http://web.mit.edu/museum/visit/directions.html) where there is some limited parking (street parking is free Sundays here) and a number of student clubs that we can head through. Then head to campus where we can tour the basements and whatnot and end up in my lab where the demos will be. The museum will be open until 5pm so those who want to see it (admission is $10 adults / $5 students/children) can stop by on their way out, it is well worth it if you have never been.

Looking forward to seeing you guys this weekend

[planters]

Peter,
Thanks, that sounds good. We'll need to eat and a late breakfast or a late lunch would work with this, with sailing in between for those interested?

[Fearless]

Thanks for the update, Peter. The sailing pavilion opens at noontime. We could meet at the pavilion at noon, sail a bit if the weather is good have a lunch there and move on to the labs at 2-3 PM. The basements are really a lot of fun for those who like old parts of cold fusion equipment.

[HankLloydRight]

Saturday looks like an absolutely perfect day for the event -- partly sunny, 77 degrees.

But Sunday, not so much with 50% chance of showers.

Any chance I can invite a friend of mine who lives in Somerville to join us for the MIT tours? What about the farm party? Is this a "public" event?