Introduction: Concrete Table With Flower of Life in Resin

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In this Instructable i will show you how i made my concrete coffee table with a flower of life in resin.

Supplies

Materials


  • Hard foam plate 125 cm x 60 cm x 40 mm (https://www.bauhaus.info/hartschaumplatten/ursa-hartschaumplatte-xps-d-n-iii-pz-i/p/13893104)
  • reinforcement steel 8mm x 200mm (https://www.bauhaus.info/armierungen/catnic-torstahl/p/13899720)
  • screed concrete (https://www.bauhaus.info/beton-estrich/quick-mix-estrichbeton/p/20228776)
  • Wireframes
  • epoxy resin (https://www.amazon.de/Epoxidharz-Laminierharz-geruchsarm-Formenbau-DIPOXY-2K-700/dp/B07S2WDMNB/)
  • resin pigments


Tools


  • CNC machine Shapeoko 2 or other
  • EstlCam
  • angle grinder
  • some old woodplates (from old wire spools)
  • construction bucket
  • trowel
  • orbital sander
  • some double-sided adhesive tape

Attachments

Step 1: The Mold

First, the mold is milled with the help of my shapeoko 2 CNC.

I have chosen the flower of life as a motif.

The hard foam plate is glued to the milling table with the help of the double-sided adhesive tape.

Then I milled the mold with the help of EstlCam.

Step 2: The Feets

After that I milled a help for welding the feet.

Now it's time to cut and weld the feet.

I fixed the feet with hot glue.

Pictures say more than a thousand words.


Step 3: Assemble Components

Now the feet, the mold and the wire mesh are assembled and aligned.

Step 4: Pour Concrete

Before I put the feet in the mold, I used a measuring cup and water to see how much concrete I needed to mix.

Mix the concrete as instructed and pour it into the mold.

I use the orbital sander to shake the bubbles out of the concrete.

Now just wait until the concrete is hard and remove the table from the mold.

Step 5: Removing the Mold

Removing the mold was more difficult than expected.

Next time I will spray the mold with a release agent beforehand.

I first removed everything by hand as best I could with the help of a spatula.

So I brushed the rest with acetone.

I removed the dried remains with the cordless drill and a wire brush.

Step 6: Painting the Legs

I then masked off the table top and painted the legs of the table with protective metal paint.

Step 7: Epoxy Resin Casting

First, I measured out 1L of water and poured it into my table. In the process, I came up with 700ml volume.


With the help of an epoxy calculator I calculated how much epoxy I need to mix. (https://www.epodex.com/de/medien/epoxidharz-rechner/)

Then I put the table in balance.

I mixed the following epoxy according to the manufacturer's instructions and mixed in 10g of pigment powder.

https://dipoxy.de/dipoxy-epoxidharz-2k-700_15


Then just poured everything into the table and let it cure.

Step 8: Sanding the Epoxy

The final step. :)

Sand down the resin and polish.


For this I have done with my belt sander and a coarse sandpaper the gobe work.


Then I polished the table to a high gloss with the orbital sander and increasingly fine sandpaper.

I used this sandpaper in the wet sanding process. (https://www.amazon.de/gp/product/B074LTCT6C/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1)


Done!