Polar meters homemade DIY antenna

November 08, 2022

It was a good feeling to use a silver-coated curtain cloth to make a projection screen, so I felt that I should contribute it as a special post to all of you for reference and good advice.
Well, first show what we just made:

Do not look at the screen is gray, oh, the projection effect is better than the brightness of the white photo paper.
Let's talk about the production of curtains and talk about other aspects.

First, for wooden frame with wood:

4, 30 yuan. In addition, please master the workshop cut to 10 yuan by size (if you do not have the tools, or if you want to find a good, convenient and effective).

Second, use latex, iron to put the wooden frame:

Later, I felt that it was not tough enough, and I used a yard nail gun to reinforce the door with nails.

Third, cutting screen:
Directly press the wooden frame on the cloth, then cut 1cm on each side and cut the cloth.

Special instructions: Use scissors? If you do not have tailoring skills, you can avoid it! Its utility paper knife is very convenient, it feels crunchy, it is easy to cut, a knife is messed up, fast and straight.

I specifically made a water wash experiment with the fabric leftovers. Can wash, but it is recommended to use a soft brush to wash, do not wash, or silver coating will fall off.

Four, front spray paint

If you think of an effect, use black velvet to wrap it. For the time being, I want to be lazy and send it out with a 6 yuan can of black spray paint.

Fifth, paste adhesive back Velcro
1. Place the back of the wooden frame upwards, and attach the hook surface of the Velcro to the back frame.

2. Adhere the Velcro suede to the front of the curtain (ie the silver-coated surface) on all four sides.

The adhesive-backed Velcro is easy to use, and it is not always necessary to use a staple gun to nail it. There are many options on the Internet. I chose the 3M brand, 5 yuan a pair of meters (ie, hook surface, suede, one meter each) that is sticky, lasting for 3 to 5 years.

6. The completion of the curtain on the front of the screen affixed to the back of the wooden frame (that is, the back) is completed, pay attention to pull the show on the line. In addition to being the carrier of the curtain, the wooden frame is placed in front of the black side of the curtain.

Hang it up.

The left half is a KT board with photo paper and the right is a silver screen (light off)

3. (Lighting)

It can be seen that the silver coated cloth has much better brightness and contrast than photo paper. Especially when there is external disturbance light, the performance of the curtain becomes more prominent. This is the strength of the metal curtain.

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Author:

Ms. Zoe Zhong

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sales07@ynxantenna.com

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