3D Printing (HE3D K280 Dual) X Repetier Host & Slic3r

This is a tutorial for using HE3D K280 Dual with Repetier Host and Slic3r. The basic steps will be shown to help you print out the models with 3D printer.

以下為3D 打印機 (型號：HE3D K280 Dual) 及操作軟件 Reqetier Host & Slic3r 的使用教學。

Step 1: Have a Brief Concept on 3D Printing 了解3D打印的基本概念

Before you print, it is better to have a basic concept on 3D printing so as to 1) enhance the quality of print, 2) prevent the known issues and 3) lower your cost, especially the time cost.

I found this video "3D Printing: 13 Things I Wish I Knew When I Got Started" created by LRN2DIY very helpful, and the following is the #1-12 issues listed by YouTube user Vailiant.
* Revised version: https://www.youtube.com/watch?v=LvGKfevdf_Q

Leveling the printing bed 2:40
Print on Glass 5:23
Make it Stick 8:00
Rafts brims and skirts 9:46
Understanding support 12:25
Octopi 15:18
Keeping an eye on things 16:38
Materials Matter 18:45
Have a little help from your friends 23:44
Ironing 25:18
Print profiles 26:50
Slicing matters 28:00

在進行3D打印之前，可先了解3D打印的基本概念和注意事項 (3D Printing: 13 Things I Wish I Knew When I Got Started)，從而提升1) 打印質素、2) 節省材料及時間成本、3) 避免發生常見問題。

Leveling the printing bed 2:40
Print on Glass 5:23
Make it Stick 8:00
Rafts brims and skirts 9:46
Understanding support 12:25
Octopi 15:18
Keeping an eye on things 16:38
Materials Matter 18:45
Have a little help from your friends 23:44
Ironing 25:18
Print profiles 26:50
Slicing matters 28:00

Step 2: Prepare Your Model 準備3D打印的立體圖 (.stl File)

.stl file is your 3D object file

Beware of the hanging part and decide whether you need to generate support or slightly change the design of your model for better result.

.stl檔案是立體模型的檔案格式

檢查立體圖會否有懸空部分或大於45度的斜面

(線材加熱擠出時，未能及時冷卻而固化，導致模型在沒有支撐的情況下而容易變型。)

解決方法：

1. 更改立體圖放置方向。

2. 在使用操作軟件 Repetier-Host 進行切割模型 (Slicer) 時增加支撐 (Support)。

3. 更改設計。

Step 3: Open Software to Connect Printer 開啟操作軟件連接 3D 打印機

FYI, the firmware of the printer is Repetier.

(If you are using the laptop settled in the space, Repetier-Host has already been installed and the icon could be found on the desktop. Then, click "Connect" for sending/getting the data to/from the printer.)

3D 打印機 (HE3D K280 Dual) 的操作軟件 (固體 Firmware) 是 Repetier。

(如你在使用MAKERSPACE的電腦，Repetier-Host和Slic3r都已經安裝。
在桌面上尋找Repetier-Host，然後按Connect連接打印機到電腦。)

Step 4: Add Object 添加物件檔案

Add the .stl file in the interface "Add Object"

按 Add Object 添加物件檔案到Repetier

Step 5: Choosing Extruder to Print 選擇打印噴頭

You can choose 1/2 extruder to print out the object.

For dual-color models, you may need to use slic3r to export G-code file for better handling.

*further tutorial on dual-color print will be published

可選擇噴頭 1 或 2 來打印你的物件

如需要雙色打印，你可能需要另外開啟Slic3r來匯出G-code file 方便列印。 (將會有另一個使用雙色列印的教學)

Step 6: Slice the Model to G-code 切割模型成為G-code

The printer requires G-code to run the printing process. I'm using Slic3r here as the slicer.

You may download the setting pack for your reference.

Slicer : Slic3r
Print / Printer / Extruder (s) Setting has already set in the laptop of the center
Default setting:
- Build-plate Support Only
- with Heatbed
- with Brim
- infill 10%
check if support is needed for the hanging parts or override the setting of slic3r

3D打印機是閱讀G-code指令進行打印，因此必須先切割模型 (Slice) 把.stl file 轉變為 .nc file 才能進行打印。

(切割模型是把立體圖按其形狀轉換成一層層由線條，3D打印的噴頭會按照線條逐層進行打印。)

你可在此下載及直接使用 3D打印的預設包 setting pack。

*** 請注意，如立體圖有懸空部份，可按圖示增加支撐固定模型 ***