Clock in a soft drink bottle

This is a project done a couple of years ago. Much earlier than another posted project from me, Keylendar . I submit this for the Clock Contest. Pls gimme a vote if you like it. Thx!

- unwanted Compact Discs x2
- 2L soda bottles x3
  (of different brands, if those bottles are from different manufacturer, size may varies a little.)
- clock movement x1
- clock hands x2
- 120gsm+ paper for printing
- Cardboard

- scissors
- cutter
- glue
- adhesive tape

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Step 2: Inner tube

Picture of Inner tube
Compare the 3 bottles. Choose the smallest as the inner tube. Remove the curved bottom leaving only the straight part. Shape it into height of 90mm. Draw a red line (or whatever color you want) with a permanent marker. This will be the current time indicator.

Step 4: Base Disc

Picture of Base Disc
Place one of the CDs into the biggest bottle. Let it rest above the curved bottom. It’s the base disc.
tdutta3 years ago
You could have as many time zones shown on the same clock as you want. Love it!
Nice idea! I have a question though. Theoretically, how do I ensure that the print-outs would be in-sync with the clock itself? I haven't started the project yet, but this question has really tortured my brain when I think about it. lol!
duckcrazy (author)  theloneponderer5 months ago

Step10 - Stick the printout cylinders on the original hands of the clock with adhesive tape. Then step11 - Attach the hands back to the clock movement. So the clock work as usual when the hands move. And they move the printout cylinders, too! In this point you cannot makes the cylinders with heavy or thick materials, paper is a perfect choice!

9400dk3 years ago
Good idea and very well documented.
I like it :-)
reinzig3 years ago
"Shape" the CD's? How does one go about doing that? With a saw? With a grinder? ????
duckcrazy (author)  reinzig3 years ago
Sorry I missed this point. You can use a hot-wire cutter to do the job.
I got some very crappy CDs that can easily snap into two layers when bend. then I shape then by scissors!
Kiteman3 years ago
That's really cool.

You could make something similar in a glass bottle (complete, not with the bottom of another bottle on top), and sell it to a pub or restaurant as a themed clock!.
Oooh, nice! Now I want to do that with nixie tubes in dark bottles :D
A row of three wine-bottles on a wooden plinth, showing hours, minutes and second.

To sell it to a pub, make it programmable to start flashing between "last" and "orders" at the right time...
duckcrazy (author)  Kiteman3 years ago
Yes, you inspired me to make one using a peanut butter jar. The design have to open up the cross-section or the clock movement cannot get through.
vijayg1793 years ago
nice one,
can,t we make a sand watch using these bottles.
duckcrazy (author)  vijayg1793 years ago
Thanks! sure you can. Take a look at the sugar hourglass.
Bongmaster3 years ago
neato :)