Two DIY Things

Two DIY Things

Can you boast of making things with your own hands? Below you will find several instructions which will guide you through the construction process of a subwoofer and a telescope.

Two DIY Things

Sure, buying a subwoofer is a simple thing. But don’t you think that making it at home is much more interesting? First  saw an old bookcase.

Two DIY Things

Make an aperture.

Two DIY Things

Install the driver units.

Two DIY Things

This is the final variant.

Two DIY Things

Don’t forget to use supports so that the appliance could be evenly held.

Two DIY Things

A lower part of the frame. All the holes were sealed up with hermetics.

Two DIY Things

Foam plastic is added to the frame.

Two DIY Things

Two DIY Things

Apertures for Bassreflex: 110 and 75. The first one is intended for a plastic tube.

Two DIY Things

Or a chips can.

Two DIY Things

As the can was short it was decided to make it longer with the help of epoxy glue which is dried for 24 hours.

Two DIY Things

Filling the can.

Two DIY Things

Assembly and preliminary installation.

Two DIY Things

Total view.

Two DIY Things

Assembly is continued.

Two DIY Things

Foam plastic is glued to the box.

Two DIY Things

Two DIY Things

Two DIY Things

The ready-made construction is connected with Microlab H500d.

Two DIY Things

Filter installation.

Two DIY Things

Fixing a paper band.

Two DIY Things

Two DIY Things

First variant of connection.

Two DIY Things

Two DIY Things

The cable.

Two DIY Things

Frames for Bassreflex.

Two DIY Things

Covering the left seams with glue.

Two DIY Things

Two DIY Things

Two DIY Things

Two DIY Things

Two DIY Things

Two DIY Things

Polishing and drying.

Two DIY Things

Two DIY Things

Two DIY Things

Two DIY Things

The back cover needs to be separated or cut in this case.

Two DIY Things

Two DIY Things

Fixing the band. Don’t forget that the bad must be of a good quality.

Two DIY Things

Two DIY Things

Two DIY Things

Two DIY Things

Next day it was obvious that some mistakes still were made. The aperture was made not in the right place. The bottom was fixed in the wrong way.

Two DIY Things

Two DIY Things

The view.

Two DIY Things

Coupling the new invention with dynamics of Monitor Audio Silver RX6.

Two DIY Things

In a couple of hours the passive appliance was supplied with an amplifier and a power block.

Two DIY Things

Amplifier construction.

Two DIY Things

Two DIY Things

Fixing the connectors.

Two DIY Things

Two DIY Things

Two DIY Things

Background view, final variant.

Two DIY Things

The process was followed by adding conditioners. The choice of an amplifier was far from being successful as it kept making a loud screeching sound and required another lowering filter. Besides, sound can be lost at ultimate volume and if you don’t like it tool loud don’t pay attention to it.

Two DIY Things

This very telescope was made in a regular apartment. It took several years for its inventor to assemble it.

Two DIY Things

The mirror.

Two DIY Things

This equipment help in telescope production.

Two DIY Things

Nog plate.

Two DIY Things

Cast polisher.

Two DIY Things

Molding.

Two DIY Things

Having passed through molding stage.

Two DIY Things

Getting ready for polishing. For this purpose colophony was used where resin was substituted for condenser lense. Steel disk was taken as a base.

Two DIY Things

Well-done.

Two DIY Things

Other examples of good work.

Two DIY Things

Two DIY Things

Plates are fixed on magnets making it convenient to change the aperture size.

Two DIY Things

Checking the parameters.

Two DIY Things

The frame is ready, now it’s time to fins nice screws.

Two DIY Things

Close view.

Two DIY Things

The view of a picture depends on the eye position. Then it’s needed to find an optimal position and enjoy the view. Spherical defect is not noticed and is small even if present.

Two DIY Things

Another perspective.

Two DIY Things

Two DIY Things

It is covered with a film now but rough surfaces can still be observed. The variant is not final though.

Two DIY Things

Now the telescope is ready and can be taken outdoors to have a look at some nebulosity located far from the lights of the big city.

 

18 thoughts on “Two DIY Things”

  1. My compliments to the intelligent Comrade who built this telescope. Telescopes are time machines. This Comrade will be looking into a distant past. I hope his/her Daughter becomes an astronomer.

    Reply
  2. A. Bunka here. Very cool. Radio Shack’s got most of the speaker parts. I rebuilt old blown out speakers with their parts. Much simpler than what this person did.

    Reply
      • What do you listen to? The Internationale?

        While we are on the subject of entertainment, have you ever seen “Volunteers” starring John Candy? Very funny movie, you’ll like it trust me.

        I enjoy music, Frank Zappa was one of my favorites. I like old Hank Williams Sr. too. Many others, Bruce, I was never that crazy about, I thought a little known album of his, “Nebraska” was really good.

        Reply
        • I realized that I had never actually listened to “The Internationale” what an incredibly boring piece of dog doo. Not worthy of the truly great Russian composers of the past, not remotely close. Give me Rachmaninoff.

          Reply
        • I have not seen “Volunteers.”The Internationale” is not boring, but it’s not my favorite. My (lame) joke was a play on you being semi-patriotic. You know I’m not going to listen to Country (too red, white, and blue) or jazz or urban (too “cultural”) or most rock and roll (too loud- I get enough noise at the machine shop). That leaves folk, my early rising East Coast friend. Try Nick Drake, Tim Hardin, and Townes Van Zandt.

          Reply
  3. Stereo speakers and telescopes, yes.
    Homemade nuclear reactors, no. (fellow in Sweden building a nuke reactor in his kitchen)

    Reply
  4. Because of some shortages in the Soviet era, industrious people improvised and created/altered numerous items. These DIYers could be their children.

    Reply
  5. Good informative article although as it started out it the projects looked fairly easy but as the article progressed it appeared that getting the desired result was way to complicated for me.With my meager mechanical abilities it would take at least a hundred years to finish either of these projects but to those of you that have the ability to create things I wish you the best.

    Reply

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