DIY Concrete Lamp - LED String Light

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About: Discover woodworking, concrete, LEDs, home decor and DIY projects you'll love.

For this instructable, I will be making a Concrete Lamp.

I will use these lights for an end table. What's nice about these lights is that all the electronics are hidden.

This is a simple project that requires very little tools, and it can enhance any space. You can go as big or as small as you like.

Just take the same concept I used in this project, and you'll be on you way!

See below for a complete list of what I used to make this project:

Here are the materials I used:

- Litom Led String Lights http://amzn.to/2bKHt8V
- Glass Vase 10 1/2 Inch http://amzn.to/2bnAiPJ

-1 inch Weather strip foam http://amzn.to/2bF9vUw

- PVC Pipe

- Concrete

Types of Tools I used

- Miter Saw http://amzn.to/2bOKP9z

- Hand shovel http://amzn.to/2bTDfca

- Hot Glue Gun http://amzn.to/2bTDfca

- Palm Sander - http://amzn.to/2bTDfca

- Drill http://amzn.to/2bTDfca

- Masonry bit sit - http://amzn.to/2bTDfca

- Oscillating tool http://amzn.to/2bTDfca

Step 1: Cutting PVC to Size

I cut the PVC first to create a straight edge. Then I set my stop block to make a 5-inch cut on the miter saw.

Make as many as you like! I made two.

Since the piece of PVC was outside collecting dirt, I gave a quick wipe-down so that dirt didn't transfer to the form.

Step 2: Make a Place Holder

The inside of form needs to be hollow in order to hold the LED controller.

You can use whatever you come up with for this. I used two water bottles as a placeholder.

(Note: the water needs to me centered in the form.)

I made the water bottles 1.5-inches below the rim of the PVC.

Step 3: Adding Weather Strip

The top of the form needs to be small enough at the top for the vase to cover it. I used a foam weather strip to prevent the cement from filling this area. (1 inch Weather strip foam http://amzn.to/2bF9vUw)

To cover the bottom of the PVC I used a Plastic warp . Then, I used masking tape to hold it in place.

Step 4: Mixing Concrete

Take a bucket. Add concrete. Then add water. Mix the concrete with a small shovel.

Step 5: Making the Concrete Form

Place the bottle in the center. Then pour the cement mix. Add a small amount, and then use a mallet or a hammer to tap the outside of the PVC. This will help the cement fall to the bottom. Keep an eye on the bottle. (When I was tapping the PVC, I noticed the bottle was attempting to rise to the top.)

Now vibrate the bottle, using the sander. During the vibrating process I used a nail to hold the bottle down.

Step 6: Removing the PVC

I let the form sit for a few days to cure. The bottom was completely covered with concrete. Not a big deal -- I just took a hammer and broke the thin layer.

Now I normally use some kind of oil to help with the release process. However I forgot to add oil. To remove the PVC, I made two cuts 2 to 3 inches apart. I made sure to not go all the way through the PVC while using a hack saw. Try not damage the form. Then I pulled the cut section out.

The PVC will release easily.

Step 7: Sand the Form

I didn't sand the body of the form. It was very smooth. The top, however, required some work because the vase didn't fit. This was something I knew I would have to address before I started.

To sand the body, I used a 60-grit sandpaper.

Next, I drilled out the top with a masonry bit http://amzn.to/2bTDfca . The bit pressed the plastic bottles down, so I was forced to remove it. My intention was to keep it in the form. However, it was not a big deal.

Then, I notched out a channel for the power wire to pass through.

Step 8: Adding the LED Lights

Pass the string lights through the hole. Then pass the IR receiver through the hole, as well. Connect the light to the controller, then the transformer to the control. Now place inside the concrete.

Apply hot glue to the channel then place the wire in the channel. Add a little more glue on top. I didn't show it, but I also added hot glue to hold the IR in place.

Step 9: Finishing Touches

Now install the wire in the vase and place the vase on the concrete base. Plug it in and you are ready to go!

If you like this project, please consider giving it a vote for the Lamp and Lighting Contest:

https://www.instructables.com/contest/lamps2016/

Thank you!

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Lamps and Lighting Contest 2016

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Lamps and Lighting Contest 2016

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    48 Discussions

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    JorgeS181

    1 year ago

    Really beatiful !.... hack the lamp !

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    DinoD5

    2 years ago

    Love these. Going to make a pair for my son's new apartment. I really like the ideas you come up with for using concrete in projects. Keep up the great work!

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    jsand4871

    2 years ago

    Hey man is that 4" or 5" PVC ? Thanks!

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    CraftAndu

    2 years ago

    Really nice lamps!

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    tamietti

    2 years ago

    Very cool your work. I try make one.

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    dpiccine

    2 years ago

    sick as usual bro!

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    JC41americangypsy13

    Reply 2 years ago

    I've seen a variation in a home in a hanging multi lamp fixture. Not sure how this could be modified to work that way. Concrete might be too heavy, and of course how to attach the base to the glass (especially while keeping it removable)?

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    mad_hatter261americangypsy13

    Reply 2 years ago

    Doesn't look like anything is used to secure the base. And he probably didn't need to use anything since he sanded just enough to fit the vase over.

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    ananthanarayanadiycreators

    Reply 2 years ago

    Fine, But we need to know about the concret mixing ratios such as mud, cement and other items. In what proportions. roananth@gmail.com

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    pskvorc

    2 years ago

    Nice!

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    surya raju

    2 years ago

    they look really good,I had a question in mind for my version if the build,how about EL wire suspended in mineral oil?(off course secured to the vase at the top)

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    -sam-

    2 years ago

    Awesome project, Voted for you,
    Wonder if you used oil for easy pvc removing how the concrete will look like?
    Maybe you can cover it with clear acrylic coat..

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    synthdust

    2 years ago

    V cool. Love to see it with muli colored leds!

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    figbash

    2 years ago

    Simple. Elegant. Versatile. Love it! Voted.

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    peterconnor

    2 years ago

    Great job you should share it with Ben at http://www.homemade-modern.com/ he loves that stuff might tweet it out for you.

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    Ali2k

    2 years ago

    Nice ;)

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    philbrien

    2 years ago

    Fantastic! Beautiful lamps