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POWER ON 과학클럽 소개자료
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POWER ON 과학클럽 소개자료
1.
POWERON RepRap를 이용한
custom 3D printer
2.
3D 프린터란? 기존의 프린터가
2차원 을 그린다면 3D프린터는 2차원을 한층 한층 적층하여 3차원 구조물을 형성 기존의 CNC와 같은 툴이 여러 제한이 있는 반면 3D프린터는 내부 구조물을 자유롭게 형성 가능 최근 특허가 풀려 관련 시장이 폭발적으로 성장
3.
3D프린터의 종류 1. SLS 한층
한층 원료를 깔고 레이저를 이용하여 굳히는 방식 정밀하나 프린팅 시간이 오래 걸리고 비싸다.
4.
3D 프린터 종류 2.SLA
방식 자외선을 받으면 굳는 레진을 이용한 방식 얇고 미세한 형상을 제작할 수 있다.
5.
3D 프린터 종류 3.
FDM 방식 플라스틱 수지를 녹여서 쌓는 방식 빠르고 저렴하여 저가형 프린터에 널리 쓰인다.
6.
CARTESIAN COORDINATE X, Y,
Z축 방향으로 노즐이 이동하며 녹은 플라스틱을 압출 이러한 제작방식 때문에 결이 발생
7.
구조의 문제 FDM프린터는 직선운동으로
한 줄 한 줄 프린팅 결이 발생하여 결을 따라 가해지는 힘에 취약
8.
POLAR COORDINATE 극 좌표계는
원점으로부터 거리와 각도를 이용하여 위치 표현 프린터의 노즐을 곡선으로 움직이게 하여 제작 출력 했을때 결이 한 방향으로 나 있지 않고 휘어져 있다.
9.
10.
REPRAP http://www.reprap.org/ 현재 가장 큰
오픈소스 3D 프린터 커뮤니티 Prusa, Mendel, wallace등 다양한 3D 프린터가 REPRAP을 기반으로 만들어짐
11.
프린터 만들기 1. 하드웨어
만들기 기존의 3D 프린터와 다르게 XY축 이동 대신 회전하는 원반 위에서 쌓아나가는 방식 Z축이동은 동일하나 원반의 회전을 step모터를 이용하여 제어
12.
프린터 만들기 2. G-code G-code란
프린터의 각 부분이 어떻게 움직이는지를 정의한 코드 STL 파일을 G-code로 변환하는 G-code generator를 만들어야 함
13.
프린터 만들기 3. 하드웨어
제어 노즐을 정확한 위치에 놓기 위한 제어 코드 G-code를 따라서 프린터를 움직여야 한다
14.
과제 참여자 송병호 전자전기공학과 4학년 팀장 안석준 컴퓨터공학과
3학년 인터페이스 및 STL 파싱 김영신 기계공학과 3학년 3D프린터 모션 제어 이정락 기계공학과 2학년 3D프린터 동작 설계 이은지 대구 혜화 여고 프린터 디자인
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