“We cannot change the wind – only set the sails differently”


Klaus Leistritz – world market leader in tube software – uses a 2000 year old quotation from Aristotle on the website of a new software ‘3dtubecad.com’.


nitially Klaus Leistritz followed in his father´s footsteps, and worked with him on scientific tests for the reduction of exhaust emissions and engine noise in cars, ships and aeroplanes. We can all recall the seventies, when waves of ‘big noise’ from huge exhaust pipes came to Europe from the United States. The so called headers, or exhaust tubular systems, followed for sports cars, and Klaus concentrated his efforts on the pipe run under the hood. Companies such as BMW, Ferrari, Mercedes, VW etc, had asked him to develop this new engine technology. The prototype phase was a big project that was continually changing, and each prototype required many variations before it was ready for production. Tubes are “living” parts, they resist bending, and change their bending form minimally to get back at least a bit of their primary freedom! Small


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emissions by the engineers setting the production criteria completed the problem; a prime example of this was the space defined for a screw driver - too small! Instead of continuously modifying


the bent tubes under time pressure and a heavy work load, Klaus


thought about a tube specialised software, which could solve these problems for the prototyping work by simplifying this procedures, to not only save time, but also material. This was 1984 – the birth of the tube software from Klaus. Simultaneously, Helga Leistritz, as a journalist at his side, published the information in many professional and trade journals. Her agenda was not only to inform, but to put his visions into words, to formulate the complex tube bending processes into something understandable, to work on new arguments, to make the impossible possible! To explain new definitions, to make wishful thinking a thing of the past, and, to utilise his visions as modules for future application possibilities, in a software which had the working title “tube software” to prepare it for the future. 2004 – twenty years after the


original tube software, Klaus developed his own graphic solution, and thanks to that, the tube specialised software came to be


20 IMT April/May 2014 www.internationalmetaltube.com


known as ‘standalone’ software. now known as “computer aided design” (CAD) and which could link to other well-known industrial software packages. Klaus surprised all with this brilliant leap, and changed the name from TeZet tube to TeZetCAD, now recognised and respected as a world market leader in the tube business. In 2005, he sold his company and his software, but remained in the company as both consultant and specialist for software support for the next 8 years. He continued programming and developed new features needed by the market. In October 2013 a stormy wind crossed his horizon, no-one knew where it came from, or why. But, since he cannot change the wind he set the sails differently (as Aristotle stated 2500 years ago) and started a third time from scratch. Within a very short time he coordinated programming new tube software, after all he had had everything in his head for more than 30 years. And, in addition to his new ideas, he


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