Artify Industries

My project is very complex, but to synthesize I'll miss a lot of details. In practice, I want to open an online shop where I sell 3D printed things. At the start it will be space themed keychains and other stuff, and later I will add more products (not only space themed, and also useful). I don't know how acceptable the quality of product will be, because I don't have a 3D printer but I will buy it soon. I've only thinked about the manufacturing procedures, the economy part (prices, extimated earnings ecc.), shipping ecc. I also thinked to make an "affiliation" part, wher others can buy a specific 3d printed and work for us. I also have a not written business plan. This shop is needed to raise money for more expensive projects. I'm sorry for my non perfect english.