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A 3D printer extrusion head trapezoidal speed curve control system

A 3D printer and speed curve technology, applied in the field of 3D printing, can solve problems such as prolonging printing time and affecting 3D printing speed, and achieve the effects of enhancing calculation stability, clear function division, and reducing data processing time

Active Publication Date: 2019-01-29
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This important factor is also bound to affect the speed of 3D printing, thus extending the printing time

Method used

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  • A 3D printer extrusion head trapezoidal speed curve control system
  • A 3D printer extrusion head trapezoidal speed curve control system
  • A 3D printer extrusion head trapezoidal speed curve control system

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Embodiment Construction

[0033] The specific details and features of the present invention will be further described in detail below in combination with embodiments.

[0034] image 3 It is the overall hardware block diagram of the hardware IP core of the embodiment of the present invention. The 3D printer extrusion head trapezoidal speed curve control system includes a motion parameter preprocessing module 300, a speed curve generator module 301, a speed curve optimizer module 302, an output module 303, and a system A controller module 304 and a block cache management module 305 .

[0035] The motion parameter preprocessing module 300 is the first to be executed in the entire hardware IP core device, and its priority is above other modules, as long as the FIFO is not empty, and the signal transmitted by the system controller module 304 meets the conditions for reading the FIFO , it will continuously read out the data for calculation. Its main function is to calculate the main parameters of the extru...

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Abstract

The invention discloses a control system of a trapezoidal speed curve of a 3D printer extrusion head. A brand-new trapezoidal speed curve control mechanism is included. Different from the traditional manner of achieving trapezoidal speed curve control through a firmware program, the control system achieves speed control based hardware. The defect that a timer interrupt routine is needed for driving the extrusion head to operate in the original solution is abandoned, all computational processes are achieved through the hardware IP core (intellectual property core), the system is divided into several function submodules, and the function submodules are responsible for different functions. Through hardware-based design, when the trapezoidal speed curve of the 3D printer extrusion head is output, the computational processes are simplified, the load of a CPU is released, computational stability is enhanced, computational time is reduced, and contributions are made to improving the printing speed of a 3D printer.

Description

technical field [0001] The invention relates to 3D printing technology, more specifically, a trapezoidal speed curve control system for extrusion heads of 3D printers. Background technique [0002] In recent years, the research and application of 3D printer technology has attracted more and more attention from academia and business circles, and it is known as one of the important symbols of the third industrial revolution. 3D printing is a rapid prototyping manufacturing technology, which is different from traditional "subtractive" manufacturing. It is an "additive" manufacturing that uses bondable materials such as special wax, powdered metal or plastic to perform layering and superimposition. Its working mechanism is to process the designed 3D model with computer software (such as skeinforge), generate G code and send it to the 3D printer. After receiving the G code, the 3D printer generates corresponding control instructions to control the extrusion head to make the corre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/393B33Y50/02G06F9/50
CPCB33Y50/02G06F9/505
Inventor 张俊刘卫祥宋朝霞李丽娇
Owner CENT SOUTH UNIV
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