Land sailing and building wooden cars was an early hobby.

Sorry, this entry is only available in Dutch.

One of the results in the co-operation with Bram Moens of M5 recumbents, also situated in Middelburg: a soft fairing with carbon front.

The famous bar Seventy-Seven on the market place, Middelburg , NL had this cd carrousel made by Derk. It goes up and down and goes 360 degrees around. Nice detail is the large aluminum Snek and huge springs that form the mechanism of old school blackboards.
It is funny: we have all been staring at that black board but there is practically nobody that knows what is behind it and how it works …..
It is still in function in Cafe 77.

Derk didn’t only design rowingbikes. Here a barstool, designed for café “Schuttershof” in Middelburg (Derk’s comment: “They’re still comfortable”).

A carbon board fitted with wheels without axles. The rim spins over three ball bearings. With the calf the brakes are manipulated.
Fitted with thin low pressure tyres.
Design: Derk Thijs/ Huibert Groenendijk
Patent pending © Thys I.D.

Prototypes.

Design in the extreme: a fine and ergonomic designed fishing-rod!
Design: Huibert Groenendijk.

Several prototypes mad for Huibert Groenendijk; designer of the maxi Cosi child seat.