What do you need?
1 packet of gypsum and water
transparent printer sheet
scissors
piece of sturdy cardboard
contact glue
Stanley knife and cutting mat
pencil and ruler
filling knife
To build a pyramid you need a lot of building blocks, we make them from gypsum. Gypsum to pour is made in the ratio 2:1, which means 2 parts gypsum on 1 part water.
If you have 1 silicon ice cube tray only, you have pour a lot, we assume 3 trays of whole blocks and a few holes with half blocks.
How to make a pyramid
Measure gypsum and water.
Pour the water in a large cup.
Stir the gypsum in the water.
Pour the gypsum into the ice tray.
- Tap the mold gently on your work surface to remove little air bubbles.
- Allow the bricks to dry overnight in the mold and a day out of the mold, then the are really dry on the inside.
- You need at least three trays of building blocks so reapeat the gypsum pouring.
Press out the building blocks.
Cut pieces of plastic to size, place them.
Pour gypsum in the holes.
Allow the blocks to dry thoroughly.
Lay out the blocks, measure the perimeter.
Draw the square on cardboard.
Cut out the cardboard base.
With just gypsum you can not firmly secure the blocks, the masonry is just too make the pyramid look more realistic. We glue the blocks on with contact glue for solidity. Contact glue means you have to put glue on both sides, let dry 5-10 minutes then press the blocks on.
Spread glue on the blocks and on the base.
Press on blocks and cut off cardboard.
Spread wet plaster between the layers.
Finish the pyramid by glueing on half blocks.
Mix a mug gypsum, make it slightly thinner than before.
Plaster the exterior of the bottom halve.
Download the top of the pyramid, cut it all out.
The cardboard top can stay loose then you can decorate the interior of the pyramid and place the sarcophagus inside.
Cut the parts out of cardboard.
Rill the edges with closed scissors.
Now you have made 4 walls and a bottom.
Spread glue on the edges so they stick.
Stick all glued edges on each other.
Stick the bottom on in the same way.
Spread gypsum over the top half exterior.
Now the pyramid is ready on the outside, allow the gypsum to dry thoroughly. Next time we paint the pyramid and we finish the interior.