I am a SW engineering designing a little computer with an aluminum case. Modelarna were most helpful as they responded not just with a decent price, but also by modifying my STL with all the sharp corners fileted-out. They advised me to start using AutoDesk instead of 3D Builder. My case is small but with intricate details: body+lid, an opening for LCD, a recess for a screen lens, many holes for connectors and screws, 3 internal pillars. Their “machinist” guided me all the way during my struggle with AutoDesk, often doing certain details himself. He insisted that I should measure over and over to make sure everything is right. They can also anodise and laser-etch labels, so I wanted those too and went through very many cycles of engineering with them. They were just great to be so patient in what must be the longest conversation thread in the history of Treatstock. Way beyond the price. All the while, I felt like a samurai who ordered a katana to the only craftsmen in the Empire.