3D printer(Print REAL plastics parts)
Can self-replicate parts (For repairing or build a new one)
Open source hardware (GNU general public license)
3D立體打印 (印製塑膠成品)
可自行複製自身的塑膠零件 (後備用途或製作新一台)
開放源設計 (GNU 通用公眾特許條款)
5.
Everyone canreplicate RepRap their own
Cheaply distribute RepRap units to people and communities
Everyone can create complex products without industrial support
所有人都可以自行複製 RepRap
向社會大眾提供造價低廉的 RepRap
所有人都可以利用 RepRap 生產自己的創作,不用依賴工業作自家生產
6.
Design your own3D model
設計你自己的 3D 模形
Extrude plastics by layers until print done Use toolchain convert 3D model into G code
續層擠出塑膠,直到打印完成 將 3D 模形轉成 G code
Control X/Y/Z Platform and Extruder Send G code to control board
控制 X/Y/Z 移動工作台及擠膠噴頭 將 G code 傳送到控制板
8.
Extruder
+
Hot Nozzle
Z - axis
X - axis
Heat bed
Control board
+
Motor Driver Y - axis
9.
FDM (Fused DepositionModeling) / FFF (Fused Filament Fabrication)
熱溶解積層法
1. Thermoplastics filament are liquefied and
deposited by an extrusion head
2. Follows a tool-path defined by the CAD file
and materials deposited in layers in 0.3 mm
3. Part is built from the bottom up by layers
將熱塑性塑膠加熱液化,按計算好的刀路移
動,將塑膠擠出 (幼至 0.3mm),由最底層開
續層填滿
13.
“Support” printingare required if printing parts
with hollow or invert slopes > 45°
Need to remove “Support” manually after the
print done
如果要打印的零件有凌空或倒斜 > 45° 的話,
則要打印額外的”支撐”
完成打印後,需要人手去移除額外的 ”支撐”
14.
Use heatbed to keep warm during
printing to prevent object warp by cool
down
為避免打印期間的冷縮引起的彎曲,過
程中建議使用電熱床保持相當的溫度
Blender
Design your3D model in any commercial CAD
software (Inventor, Solidworks…) or any free 3D
modeling software (Blender, OpenSCAD…)
Save the 3D model as STL file format.
OpenSCAD
先利用不同的3D建模軟件設計出自己的3D模型
將設計好的3D模型儲存成STL檔案格式
22.
• Reading in3D objects 讀取3D模型檔案 (STL)
1
• Slicing the objects to make each build layer 將3D模型水平切割成多層平面
2
• Evaluating 2D geometry outlines 計算出每層平面的外框刀路
3
• Generating cross-hatch infill 計算出每層平面內的填充刀路
4
5 • Arc compensation 計算所有走弧線刀路的補償刀路
• Translate the tool path to G code 將刀路結果轉譯成 G code 控制碼
6
Buy acomplete set and assembly yourself, or
Get printing parts from other RepRappers, and buy other mechanical parts and
electronic parts from shop
於網上直接購買一台完整的套件,或
從 RepRap 的朋友處打印一份膠件,之後到五金 / 電子店鋪購買其他零件
26.
?
Chocolate Printer / Laser Cutting PCB Maker / Think your own use
Food Printer Machine Soldering Machine
朱古力 / 食物打印 激光切割 電路板 + 焊接 你的創新用途?
We can scanany objects and replicate by RepRap
透過立體掃瞄,我們可以將實物複製及生產
David 3D Scanner David 立體掃瞄
is a software can 是一個可以免費
be download freely. 下載使用的軟件
Hardware BOM: 配合硬件:
Arduino Arduino板
Motor Drive 電機驅動板
Stepper Motor 步進電機
Web Cam 視像鏡頭
Line Laser Line Laser
30.
Teaching collegestudent design and drawing 3D creations
Students make use of RepRap to print out their design and use it in REAL life
Currently redesign a simpler RepStrap which can be cheaper (< US$200)
於中學任教電腦輔助設計科,教授學生設計及繪製立體創作
學生利用 RepRap 打印出自己設計的作品,可以應用於現實世界
近來重新設計一台平價的 RepStrap,期望可推廣於其他中學使用 (< US$200)