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As we described before; you can make your own DemoUnits.And why not? A little focus, some fun and a few materials are enough to create DemoUnits in the shape and size that you are looking for.

The costs will be very low. Only bamboo sticks and thin steel wire is used, and wire can be cut out of a used car tire for free. DemoUnits are also light, compact and easy to transport to the site of use or demonstration. A tower to carry along can easily have a height of 4 meters.

A modular display system is set up from bamboo sticks and metal cross wires, all identical in size, to form towers and cubes. They interconnect in a free-to-choose manner. Banners can be clipped to the bamboo stick, transparent plastic folders, containing graphics can be hooked onto these elements. Objects can be suspended within. For easy transport and storage the sticks and wires can be tied in a compact bundle, while the banners and folders can be rolled around it.

DemoUnits Camping Size - a single unit

Find here a series photo's and instruction to assemble the first unit of a DemoUnit suitable for demonstrating but also for Occupy-like Demonstrative Camping. As you will see, the lens of the camera was dusty and the light was not very optimal. One day we will make better pictures, clarifying better.

Beware! Sloppy work at this stage may result in the shamefull collapse of towers and constructions at the time of a demonstration that would otherwise be glorious effective. If you are not sure, make materials for one single prisma unit, overload it and see if or how it collapses.


      21 bamboo sticks and a bundle of cross wires - Steffen on the left holds the bundles of cross wires, Anna in the middle holds the bundle of 9 sticks for the first element of the DemoUnit, an other Anna on the right, Clown Army Anna, hold more sticks for more DemoUnits to attach to the first one later.

Triple three: 3 sets of bamboo sticks, 3 sets cross wires and 3 people

      Be amazed, but do your maths, three sides for each unit, thus three still bundled sets of cross wires and three sets of only three sticks, while they form a square together on each side? Of course that's because the fourth stick is part of the next squire.

Stick pattern

      We are to make a tent-like structure. Start with laying out the floor of the tent, then realize that one of the sides of the tent can also be laid out, later to be folded up. So after the first 4 sticks in a square, add an second square to the first one. When folded up this first side, then what is missing to make the second side? Indeed, only two sticks! Count till 4: the first stick is already part of the bottom, then comes stick 2 and stick 3 that you put in place on the ground and against this bottom stick number 1. And stick number 4 is the stick that fold up with the other side. When you prepare for it now, you will see it happen in the next steps.

Cross Wires have a hook at one end to join the sticks.

      The cross wires also have a pattern of their own Understand the cross wires: what they do and how they are attached. What they do is to keep the 4 bamboos of each square together and they make sure the square remains a squire, there is no flexibility.
      There are 4 cross wires for each square. Each cross wire hooks in into the bamboo at a corner and are tied together in the middle with a end of rope.
      Clowns army Anna has taken out a set of 4 cross wires from the bundle, while making sure they do not get entangled.

Join crosswires

      Each cross wire has at its other end an eyelet to join them with an end of rope.


      The rope is attached to the first eyelet, then woven through the other three.


      Weave in the first round. Check now that all the eyelets come together within only a few centimeters distance.


      Then weave a second round. Just loose weaving is ok for now, tightening comes only later.

Fold up one square

      Only fold, do not twist to prevent the square from falling apart. With two helpers it works best, with only one it can also be done.

Loose sticks

      The third helper picks up the loose sticks at the other side.


      The third helper picks up the loose sticks at the other side.


      Final joint done wrongly! Do not stick the hook in the VERTICAL stick. Dangerous, as it can slip out and the tower will collapse.


      All three rope joints should be tightened as is shown in the next images.


      Pull hard on the rope to join the cross wires without any play left. Space between the eyelets is equally divided.


      Make of the rope connection a stiff joint.

Solid knot

      Wind crosswise in both directions to make a solid knot.

Secure the knot

      Securing the rope, tight, but easy to undo.

Check, check and check

      Check if lock is secure, check all three knots and once again, check if hooks are in correct position. Shake the DemoUnit to test its sturdiness. Correct when this loosens up the cross wires.