New 4K visual system - Part 2 - Installation

New day. Firstly, we prepare the installation of the projectors. To do this, we first fit the projector holders to the projectors. Then the first projector is mounted. One thing we can say in advance. The overhead work left us with sore muscles the next day. Maybe we should do more sport... ;-)

Historically, we have a system of black profiles on the ceiling. There are several reasons for this. Firstly, the ceiling is so high that we needed a kind of platform to fix the projectors at a suitable height. Secondly, we didn't have much of an idea at the beginning where the projectors would end up. We wanted to remain flexible. Another argument is our lightweight ceiling. It consists of thin panels. From a structural point of view, we wanted to distribute the weight of the projectors over a larger area.

Firstly, we install the central projector. We pay particular attention to good alignment and clean centring. The view to the front should be as perfect as possible. Once the device has been mounted, we continue with the left-facing projector. It is important that the projectors have sufficient intersection over the entire vertical axis. Ideally, this should be around 30 cm. This intersection is crucial for the subsequent warping.
In our case, this means that the far corners of our projection surface are no longer covered. This was already apparent in the calculation, but is not a problem in practice. At 3.16 metres, the extremely small diameter of the projection surface is very special. We would not advise a commercial customer to do this. But rooms are often limited in size, especially in private homes. That's why it's a good idea to gain some experience with it.

Finally, there are three reasonably aligned projectors hanging from the ceiling and our body workout is coming to an end. We are very curious and start the simulator, even without warping. How cool is that? We now recognise grass on the ground. And birds in the air!

We will need to sort and arrange the cables. In the next blog post, we will look at the calculation of the visual and the calibration.  

New 4K visual system - Part 3 - Warping
New 4K visual system - Part 1 - Preparations
 

Comments 8

Guest - Rick Postma on Sunday, 04 February 2024 15:54

Well done Chris, i know the efforts behind this project…. I am extremely interested in you „parallax“ situation and how to solve

Well done Chris, i know the efforts behind this project…. I am extremely interested in you „parallax“ situation and how to solve
Guest - Michael on Sunday, 04 February 2024 17:55

That your projector is not recognized in off state, is very likely an issue with the graphics card. Search for Edid emulator. This little adapter should allow you to do your maint work with all screens being discovered by Windows also in off state.

That your projector is not recognized in off state, is very likely an issue with the graphics card. Search for Edid emulator. This little adapter should allow you to do your maint work with all screens being discovered by Windows also in off state.
Christian Behne on Sunday, 04 February 2024 18:55

Wow! Thank you very much for this hint, Michael!
We will try or this emulator and report back. It would help to solve a really annoying problem!

Wow! Thank you very much for this hint, Michael! We will try or this emulator and report back. It would help to solve a really annoying problem!
Christian Behne on Sunday, 04 February 2024 19:30

Hi guys,
I received a few question regarding the projector type I am using:

This is the one:
https://www.optoma.de/product/4k400stx

Regards
Christian

Hi guys, I received a few question regarding the projector type I am using: This is the one: https://www.optoma.de/product/4k400stx Regards Christian
Guest - Andy on Tuesday, 13 February 2024 12:22

Hi Chris, who did you manage the correct position/distance of the beamers? They dont have an optical zoom.... Or will that be managed by the warping soft? With my single ultra short beamer i buildt a variable beamer mount...

Hi Chris, who did you manage the correct position/distance of the beamers? They dont have an optical zoom.... Or will that be managed by the warping soft? With my single ultra short beamer i buildt a variable beamer mount...
Christian Behne on Wednesday, 14 February 2024 06:40

Hello Andy,

First, place the projectors roughly so that they cast their light onto the projection surface. The images must overlap. In a second step, the warping software ensures a smooth transition from one projector to another.

We use Fly Elise Designer for customers to calculate projection and projector positions. However, this software is too expensive for a one-off use. In this case, you can simply switch on the projector, hold it above your head and manually determine the first (centre) position. Then mount it and continue with the second projector, and so on. I know it sounds a bit unconventional, but it works this way too. :-)

I hope that was understandable. If not, please let me know.
Regards, Christian

Hello Andy, First, place the projectors roughly so that they cast their light onto the projection surface. The images must overlap. In a second step, the warping software ensures a smooth transition from one projector to another. We use Fly Elise Designer for customers to calculate projection and projector positions. However, this software is too expensive for a one-off use. In this case, you can simply switch on the projector, hold it above your head and manually determine the first (centre) position. Then mount it and continue with the second projector, and so on. I know it sounds a bit unconventional, but it works this way too. :-) I hope that was understandable. If not, please let me know. Regards, Christian
Guest - Andy on Sunday, 18 February 2024 12:28

So also the distance is calibrating by the Software and no Manuale Setting is nescessary?

So also the distance is calibrating by the Software and no Manuale Setting is nescessary?
Christian Behne on Sunday, 18 February 2024 13:01

Well, at least not as far as we know. We position the projectors manually within the software, but the software let us find the best position rather easily. In case you are interested in details, you may watch a demo of Fly Elise Designer. Not sure if they have a free trial. https://fly.elise-ng.net/immersive-designer-pro/

Well, at least not as far as we know. We position the projectors manually within the software, but the software let us find the best position rather easily. In case you are interested in details, you may watch a demo of Fly Elise Designer. Not sure if they have a free trial. https://fly.elise-ng.net/immersive-designer-pro/
Tuesday, 27 February 2024

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