The people we met at the LHUMP-fair got a mailing with details for a meeting at Demotech in a weekend in the beginning of April. One of them, Rombout den Ouden did not want to wait for that and worked with us on Tuesday last. He choose to tackle some refinements needed for the Senegal pulley (see picture). A method was developed to mount the spokes with considerable more pre-tension than before.

The second picture shows Rombout testing the bicycle with the instant load rack. As a design challenge he will adopt the project to construct a brake on the rear wheel, also instantly to be made from bits of rope, metal wire, wood and rubber.
In a similar way other LHUMP people could get involved in Demotech work, each with her or his own project or working together in small groups of two or three.