![]() Instead of programming a completely new slicer, the engineers tricked the software to generate the paths and then modified this code with a small Python script.įind out more about the Zurich University of Applied Sciences at . Prusa is exploring the idea of non-planar printing, where the printer can follow curved surfaces, potentially expanding the possibilities of 3D printing. Conical slicing is the method used to generate the g-code for the printer. With its rotating print head, the RotBot can reach around a part and enlarge the window to about +-90°, allowing fully overhanging structures on all sides and without supports, creating conical slices – hence the name “conical slicing”. This mode itself doesnt ensure a successful thin-wall printing but allows to slice the model as designed, with internal structures within fuselage and wings. Conventional tape printers, which have an angled nozzle, tilt this window to 0°-90°. Very generalised, you can print overhangs in this +-45° window with an ordinary FDM 3D printer. Now, multi-axis non-planar 3D printing technologies have been around for some time, but the unique feature here is the slicing software. To increase the clearance, they had to get rid of the bed level sensor, which is now used to reference the rotation axis, and a simple microswitch controls z. ![]() Linked at the bottom of this page is an additional tutorial by the youtube channel 'Teaching Tech' that includes instructions on modifying. This can be used to generate gcode for nonplanar printing on any printer. Then there’s a slightly modified V6 heat sink and the 45° heating block and nozzle, which is basically the only truly custom, non-printable part in this build. The University of Hamburg is developing an open-source, modified release of Slic3r that includes a method for non-planar slicing. On the top is an E3D Hemera direct extruder that feeds the filament through a stepper motor with a hollow shaft to a slip ring that ensures the wires don’t get tangled so the hotend can rotate completely freely and also acts as an additional bearing. The heart of the RotBot is its rotating print head with the 45° nozzle. There are loads of pictures of a 20 mm cube being sliced with a. Kindly all files were made available online for free, you can find them here (tool head) and here (slicer). Mller works to re-imagine slicing itself, and shows off the results of slicing 3D models using non-planar geometries. This should also enable the printing of overhangs that a normal filament-based 3D printer cannot print. The RotBot has a DUET control board and a rotatable, 45° tilted tool head. Now, the Zurich University of Applied Sciences in Winterthur, Switzerland, has unveiled a modified Prusa MK3 called RotBot to help with just that. Of course, there are some limitations here as well, as the printing of overhangs with a filament-based 3D printer shows. One of the many advantages of 3D printing is the high degree of geometric freedom.
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