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Matt_Edwards
01-03-2012, 01:09 AM
This year the other family members are being induced to start decorating their houses by receiving some custom decorations. To start each family will receive 2 mini trees. they will have 4 x100 count LEDs strings on each tree. LED spacing is 100mm ( standard Big-W String here in Australia) The trees will be welded 1/4 mild steel.
I am thinking along the lines of a triangular shaped tree. But I am unsure of tree size, as in height and width as well as shape.

given a total of 400 LEDs, can anyone recommend a size?

dirknerkle
01-03-2012, 01:19 AM
I'll guess about 1 meter tall, and with 4 strings of leds, they'll be covered with wire... depending, of course, on how wide you make the base because that will make a big difference... 3 strings on a 1 meter tall with triangular base tree with the base 35cm on a side fills it up very well; 4 strings would be even more full.

pipersmall
01-03-2012, 09:27 AM
hi Matt

I found a 90cm obelisk plant trainer from bunnings ($10) that I had 2x 200 light bigw strings on that worked quite well.

Hamish

Matt_Edwards
01-03-2012, 09:34 PM
When I got home last night, I whacked together a 1000x350mm Triangular Pyramid and a 900mm tomato cage, ( I used these for my RGB Spiral Mini trees).

Both had 400 LEDs.
Last night I was unable to upload short Videos of the two running. I am have better luck tonight.

I am definitely in favour of the triangular Pyramid. The overall design still needs refining to make it easier for make and wrap. I am thinking of adding 3 vertical strips of 150mm cavity mesh so the strings can be cable tied and won't slip up.
ATM the gap at the bottom is too big, I want it to be about a 50 to 100 mm before the LEDs start wrapping.

Materdaddy
01-04-2012, 01:34 PM
I'll grab a couple of pictures of mine today which I've been meaning to do. They are very similar to these in design: http://belardolights.com/jtree.html

In US:
I bought 12' cold rolled steel and cut them into three pieces roughly 3'3" and two pieces at 1'1.5". This gave me 1 tree from each 12' piece.
Again, in better units:
I bought 3.6576 meter cold rolled steel and cut them into three pieces roughly 0.9906 meters and two pieces at 0.3429 meters. This gave me 1 tree from each 3.6576 piece.

I didn't make the little "hook" shown, I simply bought some S-hooks to hang them once done. I love the stackable design so storage of my trees takes (relatively) little space.

Matt_Edwards
01-06-2012, 07:54 PM
Made another prototype this morning, based on the Belardo Lights "J" trees. I particularly like the option of stacking them inside each other for storage. I also like how the lights are primarily on the front to faces. Lights are not wasted on the back.
My dimensions are:


Height: 900mm
Base width: 320mm
front face angle: 60 degrees


Belardo Lights "J" trees seem to use a front face angle of 90 degrees. this may be a better option so one will be made next.

With the Big-W LED strings, the clear wire makes the whole lot glow.

This time I wrapped them form the bottom, it seems to work better.

Materdaddy
01-08-2012, 01:48 AM
I'm not exactly sure on my front face angle, but it is definitely greater than 60 and even a little more than 90. I'd guess more like 100.

Here is a shot of mine in the yard. It has 400 lights. 100 each of red, green, blue, and white.
http://i892.photobucket.com/albums/ac127/materdaddy/diyc/diyc%20-%20posts/2012-01-07_10-46-09_910-resized.jpg
Here is a shot of 1 tree with a yard-stick. Pretend it's a meter-stick. They're pretty close. ;)
http://i892.photobucket.com/albums/ac127/materdaddy/diyc/diyc%20-%20posts/2012-01-07_10-47-35_603-resized.jpg
Lastly, here's 6 of the trees stacked together once I cut the zip-ties suspending the SSRs behind them for the display. This allows them to stack relatively closely and for one of my favorite display elements, they store really well.
http://i892.photobucket.com/albums/ac127/materdaddy/diyc/diyc%20-%20posts/2012-01-07_12-28-12_680-resized.jpg