Well, it’s hard not to be flattered by this one: at the end of a post about Samuel Bernier’s recent 3D-printed IKEA hack , I idly mused that he should join forces with fellow DIYer Andreas Bhend of Frosta remix fame . It so happens that Andreas did read it, and the two actually acted on my suggestion to get together and “collaborate on a series of IKEA hacks with bespoke 3D printed parts and instructions…” It so happened that Andreas , a student from Switzerland, was only a short train ride from Paris, where Samuel works at le FabShop, a 3D printing startup. Even though they didn’t know each other (nor do I know either of them, for disclosure’s sake), they accepted the challenge and came up with a couple projects during a two and a half day charrette: a child’s sled and a balance bicycle .