Hello dear readers and DIY !
With the relatively recent appearance of LED strips, it is becoming easier to make a wide variety of lamps yourself. An important factor is the relatively high safety of such light sources, because a low supply voltage is used.
In this article, the author of the YouTube channel “Gui Toledo” will tell you how you can make an elegant “Saturn ring” chandelier in the Art Nouveau style.
This is the first version of such a chandelier, and it will be made of a steel profile. Some difficulties can be caused by bending and welding of metal, but this problem can be easily solved by contacting the assemblers of metal structures.
Materials needed for DIY.
– White COB High Density LED Strip
– Power Supply for 12V LEDs
– Steel U-shaped profile 20 mm wide
– Acrylic sheet, Oracal film
– Solder, wires, steel cable in a sheath
– Primer for metal, turpentine, paint.
Manufacturing process .
So, a steel U-shaped profile will serve as a lampshade and at the same time a frame of such a lamp. Its width should be slightly larger than the width of the LED strip used.
First of all, you need to estimate the diameter of the future rings, and, using the kindergarten formula πD, calculate the final circumference.
Given the peculiarity of the bending machine, you need to add about 20 cm, and cut the blanks with a grinder.
Next, the wizard starts bending the profile into a ring. This operation is performed in several passes.
Such a machine like that of the author is designed to solve more serious problems. In the case of such a thin profile, you can do with a very simple vise attachment. You can read about its production in the following article .
< a href = "https://usamodelkina.ru/uploads/posts/2020-12/1607547611_sat-012.jpg" rel = "prettyPhoto"> After bending the workpiece, two flat sections remain at the ends of the profile. They need to be cut off so that you get a round ring.
Both ends are joined together and fixed in a vice. This place is thoroughly boiled.
At this point, almost all complex work with metal is completed.
Now the weld is cleaned with a flap disc. The operation must be done carefully, because it will be the front side of the lamp.
In the same way, the master makes several more rings of a larger size. To save the profile, and compensate for the lack of a bending machine, scraps from the previous one are welded to the ends of the bending workpiece.
These are the rings you get.
Before painting, you need to grind the surfaces of the rings, for which the master uses an abrasive “coral” disc. Compared to petal, it does not leave a pattern of deep scratches.
To apply a primer on metal by spraying, the master makes it more liquid by diluting it with turpentine. It can also degrease the surface of workpieces.
Painting is done with an electric spray gun.
After the primer has dried, the master dilutes the golden metallic paint and applies another layer.
Since the length of the profile has changed, you need to re-measure the circumference and select an LED strip of a suitable length.
Also, holes for a cable and wire are drilled at three equidistant points of the upper arm of the profile.
In two of the three holes, the ends of the cable are threaded in the sheath, and sleeves for crimping the wires are crimped onto them. This is how the simplest stoppers are obtained.
The ring is lifted by both cables, and their required length is measured.
The ends of the power wires are stripped with a stripper and soldered to the contacts of the LED strip. It is better to use a multi-colored wire so as not to confuse polarity.
The power cable is led out through the hole in the ring, and the tape is glued around the perimeter inside the profile.
The excess tape is cut off at a special mark.
In order for the tape to glow evenly along its entire length, it is advisable to supply power from “both sides”, or at several points.
The place of soldering and wire exit through the ring are protected with hot glue.
Using a caliper, the author measures the distance between the profile shoulders. This is needed to make a diffuser.
By the way, the author used the simplest LED strip, and many small point light sources cause unwanted effects lighting. That is why a diffuser is needed.
More recently, a new generation of COB (Chip On Board) LED strips has appeared. In its manufacture, as the name implies, crystals are installed directly on the surface of the tape, and are directly filled with a phosphor.
Specifically, in this model of a high-density tape, there are as many as 480 LEDs per meter (compared to 30 or 60 on a conventional one). As a result, it does not require a diffuser, and the power is 9 W per meter.
The width of the tape is only 8 mm, and this will allow you to glue two tapes in parallel into such a profile at once, increasing the power twice. The metal profile itself will serve as a good radiator, and this will extend the life of the tape.
From sheet acrylic, the author cut a strip 16 mm wide, and pasted Oracal matte film on it. < br>The diffuser is inserted inside the profile and fixed with a second glue.
The end of the last section of the diffuser is cut with a knife and breaks off along the length.
Before the final assembly of the chandelier, the master checks the operation of each ring by connecting it to a 12 V power supply .
Having painted a decorative metal cap, the author drills a number of holes in it for cables and wires.
The cables are passed through the holes in the cap, and their length is regulated. Insulating tape is used as temporary stops and labels.
It remains to cut off excess cables and crimp them with sleeves.
Wires are also brought into a cap, and they are powered by a 12-volt unit.
This is such a simple and cute chandelier.
To create a more complete model “planet Saturn”, you can add a spherical shade in the center. It can be made from threads, here . < br> One of the main advantages of such lamps is the complete absence of flicker, as is the case with cheap LED lamps.
Application of new generation LED COB strip will provide greater brightness and uniformity of illumination without the use of diffusers.
Tools used by the author.
– Screwdriver, drills for metal
– Grinder, abrasive “coral” and flap discs
– Electric spray gun
– Soldering iron with adjustable temperature, glue gun
– Stripper for wires
– Digital caliper
– Bending machine
– Welding machine, chameleon mask
– Vise, tape measure, marker.
Thank the author for the master class on making a pendant LED lamp “Saturn's rings”.
New Year mood, good health, and interesting ideas!
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Author's video can be found here.
Hello dear readers and DIY !