Scroll down for how-to-capsule build

Want to host the Seidenstrasse at the next Chaos-Event, like Camp or Congress?

Take a look at this guide.

How to make your own capsule

Everyone who wants to participate can build their own capsules. Please post your pictures, drawings, instructions and experiences here as inspiration for others.

Capsules with light are better, but not needed.

Tube dimensions (verified by measurement): Outside diameter: 100 mm Inside diameter (the tube is corrugated): 90-92mm

Capsule properties (verified by experiment):

min max optimal? comment
Dia­meter 75 mm 90 mm 85 mm also depends on capsule's sides, if soft, thicker may be better
Length 100 mm 220 mm 180 mm too short might cause it to turn and get stuck, too long will not get around corners. (rounded and narrowed ends can be longer)
Weight -10 t 550 g 250 g large weights need to be tested more on long tubes going up

The ends of the capsule should be round or narrowed, so it can easily glide around bends. Take a look at how commercial capsules look like for inspiration:

Be aware! There will be massive force at the front and the back of your capsule, as it will most likely hit something hard like the floor, the end of a tube or something other..

Do NOT buy commercial capsules. They won't fit!

A capsule made by cutting a ring out of a 85mm 1.5l PET water bottle and putting the ends back together worked really well in experiments.

At the largest diameter a ring of felt or the soft side of velcro should be applied to ease the gliding through the pipes and provide a better airtight seal between tube wall and capsule.

Capsule Ideas: Multicolor glowing capsules, capsules with e-paper displays, encrypted capsules (with puzzles or locks).

Capsules ready for use

... once printed, assembled or bought.