HEXA printer

The HEXA printer is a 3D printer that uses a 6-axis parallel link mechanism similar to the DELTA printer. 6 degrees of freedom allow control

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Description

Six degrees of freedom are used to control the XYZ position and the tilt and rotation of the nozzle.
Therefore, even when there is no object below the nozzle, the nozzle can print because there is an object at the tip of the nozzle. This means that printing with an overhang of 90 degrees is possible, enabling support-less and infill-less 3D printing.
By using a special slicing method, 3D printing of complex shapes is also possible.

Details

The HEXA printer is a 3D printer that uses six linear axes to move the head, similar to a delta printer, with six degrees of freedom to control the position and orientation of the nozzle tip.

Various benefits can be expected from posture control, such as support-less and infill-less printing, improved surface properties, and improved strength of the formed object.

In particular, support-less and infill-less printing by diagonal modeling is a very beneficial technology that reduces environmental impact.

Advantages of multi-axis printing
(1) Reduction of support infill by printing diagonally.
(2) Improved lamination strength.
(3) Realization of stacking considering the direction of load.
(4) Improvement of surface properties.

Project Logs

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HEXA Printer Issues
gear_geek • 08/31/2023 at 09:34 • 0 comments

Too many degrees of freedom prevent positional accuracy at the nozzle tip. For example, the figure below shows a heat map of nozzle tip position error for different rotation angles at the same tilt angle.

Tilt 30 degrees, rotation 60 degrees

Tilt 30 degrees, rotation 240 degrees

The error varies depending on the angle of tilt and rotation.
Advantages of multi-axis printing
gear_geek • 08/31/2023 at 09:28 • 0 comments

(1) Reduction of support infill by printing diagonally.
(2) Improved lamination strength.
(3) Realization of stacking considering the direction of load.
(4) Improvement of surface properties.