Tips and Tricks for 3D Printing

Design tips for 3D printing

Many times we find that customers send us parts to print in 3D, and they cannot print because they are designed for viewing on screen. When creating a piece to print on a 3D printer, you have to consider some points that for display are irrelevant. Here are some essential design tips for 3D printing:

  1. The object must be stable. This is the problem we encounter more times. When we design to view on screen it doesn’t need to be reliable. It looks the same. But when we plan to print in 3D, the object has to be robust and completely closed. How we define solid? An object is solid when exactly two planes depart from all its edges.
  2. 2-it is necessary to give thick to walls. The previous object, the first sketch has Wall width. The second is not, therefore it cannot be printed. If we close the lower face of the purpose (where the water flows), then we will already have wall thickness (which in this case will be equal to the diameter of the figure), and it will be possible to print.
    Each printer can work with different wall thicknesses. For 3D printers by addition, the minimum wall thickness is usually between 0.8-1mm.
  3. Scale the design considering the printer’s workload. In general, it is advisable to make large pieces, because by reducing the section we lose detail. If the part is too large for the print size of the printer, by printing it, we can scale it using the printer driver. We can also cut it using free and simple programs like Netfabb, and then weld it with acetone (only if we print in ABS).
  4. If several pieces have to fit in, you have to remember to leave a space. On the screen, a 10mm diameter cylinder will fit perfectly into a 10mm hole. But in the real world, the hole must be slightly larger than the cylinder.
  5. Note that 3D design programs make curved surfaces from polygons. Although on screen they look like perfect curves when printing they are not. Depending on the number of polygons we define, the curve will be better or worse printed.
    The more polygons the surface has, the larger the file size and the better the printed part remains. Remember also that the printer driver of the EntresD UP! Us trademark red color the surfaces with some problem. We can select the “Fix” option for the driver to try to fix the problem. Even though the problem is too complicated and the driver cannot correct it, the option “Unsolid model” can be selected to get the printer to print it. When you do this, be attentive during the impression, because if you leave it unattended when you return you can find a mountain of ABS.

Users of 3D printers may encounter specific problems when making their parts, so it is advisable to follow the tips above before starting a 3D printing to prevent possible errors and failures during the print.