In SLS world the bigger the part is bigger problems related to the temperature management you face. You don’t have to care much about anything else. In FDM technology depends the size of the PLA or PET-G prints on the effective printer bed size and height of Z-axis. I would like to have the effective volume somewhere like 150x150x180mm. It should allow me to print the range form small to mid-sized parts. The dimensions of the chambers are 220x175x200 mm for the powder reservoir and 175x175x200 mm for the print chamber. The Fusion 360 model of these mechanical parts is on the following picture. I choose this way because the quality of the layers is one of the parameters directly affecting printing quality. I decided to go in the way of counter rolling mechanism instead of simple piece of aluminum plate. The printing material (PA12 powder) will be moved layer by layer from the powder to print chamber using wiping mechanism. One as the powder reservoir (powder chamber) and the second one for the printing outputs (print chamber). It means to have two chambers with the moving beds. I decided to use the ordinary arrangement of the SLS printers. So, how will my printer look like? Two chambers and roller But I haven’t realized about it that time. Having in mind I want to have the printer not to be slower than FDM printers, making nice complex prints and be user friendly, I had to make some decisions which later affected the Inova’s design a lot. Once I have finished the state-of-the-art search in the field of SLS printing, printers and related DIY projects I moved to first step of the project – features definition and Fusion 360 3D Printer Design.
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