I volunteer 3 days in a month at a Repair Café and find out that with 3d printing a lot of stuff could be made right again. So my background is since 1974 till 2016, sign maker by https://haaxman.com/ I worked as electrician/acrylic worker/vinyl work. Then I made all the layouts for all kinds of sign's for company's as KFC, Mac Donald's, Rabobank, and so on. All, presentation and production drawings for aluminum, RVS, acrylic and also the Glass drawings for the neon tubes.