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Dcroc

Pixel Tree...Strips or Nodes?

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k6ccc    500
4 hours ago, Brucey said:

Remember the recommendation is 1"spacing for every 10' from the street.

Never heard that one before, and based on my tree, that's WAY too far apart.  My pixel tree is 55 feet from the closest possible on-street location, and 110 feet from the location I tell people is the best viewing location.  My pixel spacing is 2.5 inches.  By the above recommendation, I should be a minimum of 5.5 inch pixel spacing.  In reality, I'm looking to decrease the spacing if I do a rebuild on the tree this year.

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Ebuechner    182

I think dibblejr should space his pixels at 3 inches, that would be 12.5 feet of pixels if you do 50 pixels per strip that should end up being about a 15 foot Tree in total.  I think they would be good pixel density with a decent Scale tree a hundred feet away from the street. 

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dibblejr    379
1 hour ago, Ebuechner said:

I think dibblejr should space his pixels at 3 inches, that would be 12.5 feet of pixels if you do 50 pixels per strip that should end up being about a 15 foot Tree in total.  I think they would be good pixel density with a decent Scale tree a hundred feet away from the street. 

My strands are about 12' Id lose 8' of my tree. I think that's too much to lose. (tower) so not gonna cut it. Keep the ideas coming though, they are much appreciated.

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Ebuechner    182
45 minutes ago, dibblejr said:

My strands are about 12' Id lose 8' of my tree. I think that's too much to lose. (tower) so not gonna cut it. Keep the ideas coming though, they are much appreciated.

What height are you going for?

If you did 85 pixels per strand with 3-inch spacing two strands could be tied together and stay within one Universe of DMX. Your string length would be around 22 feet. Now if you did 48 strands to make a 360 degree tree you would need 24 Outlets on a controller.

That would be one very Grand and beautiful mega tree.:blink:

I'm just sitting here running the math through my head dreaming a little. And don't you dare blame me when your wife screaming at you, how much did you spend on pixels!

 

A pxlite controller and I believe a falcon controller can put out 32 SPI Outlets with 2811 pixels

 

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dibblejr    379
15 minutes ago, Ebuechner said:

What height are you going for?

If you did 85 pixels per strand with 3-inch spacing two strands could be tied together and stay within one Universe of DMX. Your string length would be around 22 feet. Now if you did 48 strands to make a 360 degree tree you would need 24 Outlets on a controller.

That would be one very Grand and beautiful mega tree.:blink:

I'm just sitting here running the math through my head dreaming a little. And don't you dare blame me when your wife screaming at you, how much did you spend on pixels!

 

A pxlite controller and I believe a falcon controller can put out 32 SPI Outlets with 2811 pixels

 

my tree is 20' plus whatever topper I decide to change over to. Looking at the Brians Globe. I was trying to keep it all simple with LOR my first season with pixels. Someone else mailed me and told me "if I can get singing face syncing I def wont have a problem with this stuff" but I am not to sure.

As far as wife, ant hobby that keeps me home is a good hobby. One of the cheaper ones I do.

Seriously though, I need to pick yours and anyone else brains that wish to help me learn this. I got a great deal on pixels on ebay so that's not the issue. my issue is bringing it all together.

Edited by dibblejr

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dibblejr    379

Any one up late at night that checks my UN will see I have been and continually read every old thread concerning RGB stuff and still cant get it figured out. I am a more hands on type of person so maybe once I get everything needed.

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Mr. P    303

The biggest issue you have to resolve with trees that size is power requirements. You will need to figure the total power your lights will utilize plus add 20% overhead. If you already have the controllers and lights just sit down with a calculator and figure your entire wattage. You will then need to decide on the power supplies and how many.

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dibblejr    379
4 minutes ago, Mr. P said:

The biggest issue you have to resolve with trees that size is power requirements. You will need to figure the total power your lights will utilize plus add 20% overhead. If you already have the controllers and lights just sit down with a calculator and figure your entire wattage. You will then need to decide on the power supplies and how many.

My calculation IAW the company I got the pixels from say .3 watt per LED that is 45 watts per 50 count string.  90w per 100.

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Ebuechner    182

If you're trying to do a 20 foot tree you could model it after mine.

Of course this would mean you would have to abandon the pixels you have to get some with 6-inch wires so you could do the four inch spacing.

(Trust me the other pixels won't go to waste you'll find someplace for them).

If you can keep your string pixel count around 50 pixels you will be able to use shared sequences in sequence editor. In xlights you don't have these limitations it makes no difference how many pixels you have on the tree or how many channels you are using, Same thing with pixel editor.

Just another note I really wish I had done the white strips. I think that would have looked a lot better in the daytime then the black ones.

 

 

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Mr. P    303
3 minutes ago, dibblejr said:

My calculation IAW the company I got the pixels from say .3 watt per LED that is 45 watts per 50 count string.  90w per 100.

If that is the case then you will need to take a close look at the controller as most controllers will only handle 4 or 5 amps per output, depending on the controller. Your 100 node strings at 90 watts will pull 7.5 amps per output so it will blow the fuse. If you insist on the 100 nodes per output you will have power inject the second 50 on each string.

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dibblejr    379
6 minutes ago, Mr. P said:

If that is the case then you will need to take a close look at the controller as most controllers will only handle 4 or 5 amps per output, depending on the controller. Your 100 node strings at 90 watts will pull 7.5 amps per output so it will blow the fuse. If you insist on the 100 nodes per output you will have power inject the second 50 on each string.

I could always do each 50 strand with its own controller output, correct? I may need a couple controllers but power would be easier to maintain. I am getting 2 pixie16's from my good friend here.

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robongar    119
6 hours ago, Mr. P said:

Well, if you are going to run 100 nodes per port x 16 ports that would be 1152 watts for the tree. Most of the typical power supplies used are 350 watts and 29 amps so you would need four of them to run your tree. Look at the specs for your strings and come up with a total wattage, some may be as low as 20 watts per 50 and some as high as 40.

Ok help, now I'm a little confused ( easy for me) 

if I buy pixel nodes from Ray wu. https://www.aliexpress.com/store/product/18AWG-wire-100pcs-string-DC12V-12mm-WS2811-addressable-RGB-led-smart-pixel-node-with-all-color/701799_32465132460.html?spm=2114.12010608.0.0.sbCBX4

16 strings x 100 nodes per string = 1600 nodes. The specification say 0.8 watts. So I will need 1600 x 0.8 = 1200 watt power supply ( 12.5 amps @ 120v)

Do I have this correct?

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k6ccc    500

Well, you're close.  1600 x 0.8 = 1280 watts.

Note that the total power consumption is quite a bit lower if you are using 5V pixels.  However power injection becomes more of an issue if you are using long strings.

 

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Mr. P    303
2 minutes ago, robongar said:

Ok help, now I'm a little confused ( easy for me) 

if I buy pixel nodes from Ray wu. https://www.aliexpress.com/store/product/18AWG-wire-100pcs-string-DC12V-12mm-WS2811-addressable-RGB-led-smart-pixel-node-with-all-color/701799_32465132460.html?spm=2114.12010608.0.0.sbCBX4

16 strings x 100 nodes per string = 1600 nodes. The specification say 0.8 watts. So I will need 1600 x 0.8 = 1200 watt power supply ( 12.5 amps @ 120v)

Do I have this correct?

80 Watts per 100 node string, 1280 watts total

6.6 amps per 100 node string

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TheDucks    28
4 minutes ago, robongar said:

Ok help, now I'm a little confused ( easy for me) 

if I buy pixel nodes from Ray wu. https://www.aliexpress.com/store/product/18AWG-wire-100pcs-string-DC12V-12mm-WS2811-addressable-RGB-led-smart-pixel-node-with-all-color/701799_32465132460.html?spm=2114.12010608.0.0.sbCBX4

16 strings x 100 nodes per string = 1600 nodes. The specification say 0.8 watts. So I will need 1600 x 0.8 = 1200 watt power supply ( 12.5 amps @ 120v)

Do I have this correct?

1600 watts on the OUTPUT  (continuous load is 80% rule).  AC input is more as PSUs rarely hit 90%  efficiency

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dibblejr    379

Doesn't each pixel node have 3 LED's? That's how I got my calculation earlier. If not then I can cut mine down by 2/3

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Ebuechner    182
44 minutes ago, dibblejr said:

Doesn't each pixel node have 3 LED's? That's how I got my calculation earlier. If not then I can cut mine down by 2/3

Nodes use a single Pixel.

Strips usually areally 3 LEDs per pixel but not always. 

I run 168 pixels per output on my controller. I set my controller up to do a hundred watts per output. Each output is set with a 7.5 amp fuse. It's split up with four 400-watt power supplies, each power supply drives for outputs on the controller. I know what the numbers say for the wattage and amp draw but I found the reality to be a little different.

When I did a load test with 168 pixels (nodes) with full White at 11.8 volts I think I was at about 6. Amp draw. Then of course my controller is set to operate at 50% which reduces the load even more.

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dibblejr    379
9 minutes ago, Ebuechner said:

Nodes use a single Pixel.

Strips usually areally 3 LEDs per pixel but not always. 

I run 168 pixels per output on my controller. I set my controller up to do a hundred watts per output. Each output is set with a 7.5 amp fuse. It's split up with four 400-watt power supplies, each power supply drives for outputs on the controller. I know what the numbers say for the wattage and amp draw but I found the reality to be a little different.

When I did a load test with 168 pixels (nodes) with full White at 11.8 volts I think I was at about 6. Amp draw. Then of course my controller is set to operate at 50% which reduces the load even more.

based on that calculation my .3 watt per pixel x 50 strands = 15 watts. After reading every night and day about RGB's everyone says so many different things about power supply and demand. Even how many LED's per pixel node. What controllers and will they interface with the LOR AC controllers (play well with SE/PE/SS) I am trying to use the K.I.S.S. for my first year. trying to get this all together so I don't miss the sales.

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Ebuechner    182
1 minute ago, dibblejr said:

based on that calculation my .3 watt per pixel x 50 strands = 15 watts. After reading every night and day about RGB's everyone says so many different things about power supply and demand. Even how many LED's per pixel node. What controllers and will they interface with the LOR AC controllers (play well with SE/PE/SS) I am trying to use the K.I.S.S. for my first year. trying to get this all together so I don't miss the sales.

 just by pixels when the sales are there. I have totes full of pixels for future projects that I haven't even thought of yet. Just remember the one who dies with the most toys-WINS!

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TheDucks    28
1 minute ago, dibblejr said:

based on that calculation my .3 watt per pixel x 50 strands = 15 watts. After reading every night and day about RGB's everyone says so many different things about power supply and demand. Even how many LED's per pixel node. What controllers and will they interface with the LOR AC controllers (play well with SE/PE/SS) I am trying to use the K.I.S.S. for my first year. trying to get this all together so I don't miss the sales.

Also a first year

Think of how many Power leads (paired) each has

Dumb RGB have 3 : R, G, B are the returns for the 5/12V.= 3 LEDS

Smart RGB only has 1 set of power

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Dcroc    85

So, am I to understand that if I go with strips, the tree would end up being 16.5' tall?

Also, what do you use to support the strips?

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caniac    215
1 hour ago, Dcroc said:

So, am I to understand that if I go with strips, the tree would end up being 16.5' tall?

Also, what do you use to support the strips?

I used pixel mounting strips from Boscoyo Studios, I attach with a gizmo from ChristmasLightShow, and  use there topper.  attaching pics

IMG_6385_zpsfdpy2p8m.jpg

IMG_6384_zps613l6dfg.jpg

IMG_6386_zpszfm0r1z8.jpg

IMG_6387_zpsr98vpg1e.jpg

 

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caniac    215

the pixel mounting strips are "budget friendly" at $1.40 each, takes two strips plus about a foot to get you the length you need for the smart strips.  Once my wife and I figured out a system we were able to make one of these in under two minutes.  the material cuts easily with scissors yet is tough enough to handle the winds here.

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a31ford    42

Are we twins seperated at birth ???? We do things the same....

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a31ford    42
On Thursday, January 19, 2017 at 7:22 PM, dibblejr said:

Yes, mine too, just wandering how tall it was and if you happen to know the base diameter and spacing. Im assuming when I change to pixels I will use a little different spacing because of the brightness and the graphics Id like to do.

Thanks for the info that you can provide. my base is 110" diameter, tower 20' spacing between each string like 19.5"

My twins post....

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