miércoles, 1 de junio de 2022

2.- 3D PRINTER

The element that we are going to describe is the 3d printer. It is essentially a Cartesian industrial robot, in which the clamp has been replaced by a simplified extruder. 

Any 3d body is considered the stacking of the contour. An outline is a line that can be drawn as a sequence of points.

1.-The structure. The structure is constituted by a series of links that allow to be placed in any point of the space, crossing a distance along, in width and in vertical. This system has as a terminal element an extruder that pulls plastic material and at the same time that it heats it passes towards a nozzle by which it leaves in a semipasted state. The thickness of the nozzle is usually 0.4.





2.-The system of mechanisms responsible for transmitting movement to the robotic arm
3.-Control systems. The control system consists of an ARDUINO controller board. With a series of inputs supplied by the different temperature sensors and the SD card with the design file. The output of this card are the motors that by pulleys, gears and tapes make move the extruder to the point where it will fix the material in a half-pasted state.



   A 3d printer, consisting mainly of the elements that can be seen in the photograph, plus the feeding system that is a coil of material that is in the back. There are essentially 3 systems

1.-Part printing system. Configured by extruder and robotic arm
2.-The reception system of the piece also called Hot bed.
The control system formed by
                                             3.-LCD display in which a menu appears with different options
                                       4.-A series of buttons which highlights a dial. The turn allows us to move around the different categories of the menu and when you click you select one of them.
                                        5.-Slot for the insertion of the SD card with the GCODE files.

When you want to print a piece, you start by turning on the printer and placing the extruder in the start position. We open the window, remove the glass from the bed and add a little lacquer, to improve the adhesion of the piece. Then with the dial, the SD card is selected and the part you want to print is selected again. The printer starts by heating the bed and extruder. The process is automatic. When the piece is finished it is removed

Plastic feeding can also be done in a powdery state: in such cases the layers are compacted.

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