用1000港币自己DIY设计了一台学生用的3d打印机

开源技术
2013
09/04
22:47
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本帖最后由 zidan 于 2014-10-26 07:00 编辑

文/noa_izumi
因為课室没有空间, 设计了一台小形3DP, 学生上课时可以一人一机 =]
一台只用了HK$1000

用1000港币设计了一台学生用的3d打印机

用1000港币设计了一台学生用的3d打印机

e排会keep住testing, 9月中会open source全部设计出来
不计算filament架, 机身只有 22cm x 15cm x 15cm,
印的尺寸是8.5cm x 8.5cm x 8.5cm , 确保学生一定可以1个连堂可以印完, 不用烦 XD
filament = 1.75mm, JHead 0.4mm nozzle
不过冇加heatbed, 打算只印PLA (如果几十部一齐印abs = 中毒)
www.tinyboy.net
步进电机28 (不是35, 不是42), 不过行了一动滑轮, 一来减少backlash, 二来倍大少少torque
Z轴是M3, 一圈只是升0.5MM (一般reprap用m6, 一圈升1MM)

9月中旬将会开放这个3d打印机的源代码和设计图纸。请大伙关注。
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 楼主| zidan
2013-9-4 23:44:50 | 显示全部楼层

学生用3d打印机TinyBoy

本帖最后由 zidan 于 2013-9-5 00:02 编辑

TinyBoy - Open Source 3D Printer for Student
A small , easy to build , affordable machine

TinyBoy is an open source design 3D printer. The size is just 15 x 15 x 22cm , even smaller than most of the 2D paper printer. It fit for regular computer desk. The design aims as an entry-level machine for student and newbie to learn 3D modeling technology and train for creative thinking.

Less is more

The maximum size of printed object is 8.5 x 8.5 x 8.5cm , which is relatively small than many other printer. However, it is really large enough for making things like figure and toy.  

The gain from the trade off is the cost down of material and maintenance. Take out components for making large printed object , the design become simple and lean. The core material is acrylic sheet and connected by metal screw. Therefore , the cost of material and building can be minimized. The expect bill of material is just around HKD $1,000/ USD $130.

Learning by making

The process of making has the opportunity to transform education by inviting students to be something other than consumers of education. They can be maker of anything , moving from being directed to self-directed through the process.

Tinyboy is designed for easy to build. The assemble from kit can be done by just using a screw driver. We wish student can make their own machine. Then they become a pioneer whose may make another one for other people. So that the use of 3D printer can be spread out to more student.

Specification

Size: 15cm(W) x 15cm(D) x 22cm(H) (excl. filament holder)
Printed size : 8.5cm x 8.5cm x 8.5cm
1.75mm filament / 0.4mm hotend

Team Member
Parker Leung (Chief Designer)
Ben Lau
Henry Law

在麦当劳里面制作3d打印机

在麦当劳里面制作3d打印机

在麦当劳里面制作3d打印机

在麦当劳里面制作3d打印机

在麦当劳里面制作3d打印机

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 楼主| zidan
2013-9-4 23:46:23 | 显示全部楼层
制作Y轴,建立热床
3.jpg 2.jpg 1.jpg
Sharp Red build platform
(no heatbed yet, for PLA only)


Close up of Y axis, stepper, pulley belt


Compact size compare to Thing-O-Matic


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 楼主| zidan
2013-9-4 23:48:25 | 显示全部楼层
It is my pleasure to announce that COSCUP 2013 organizing committee has accepted our proposal and therefore the Tinyboy project will be shown in the event!

COSCUP (Taiwan) is one of the biggest open source conference in Asia. Last year , it has around 1500 participant coming from Taiwan , Hong Kong , Japan and many other regions. This year will be held from 3th Aug to 4rd Aug.

Beside talking about the Tinyboy project, Parker Leung , the main developer of Tinyboy , will share the experience of using 3D printer in teaching and interesting projects that could motivate high school student to be involved on creative process and product design.

The official site of COSCUP 2013

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 楼主| zidan
2013-9-4 23:50:19 | 显示全部楼层
1.jpg
测试Y轴和Z轴
2.jpg
MXL pulley belt for Y axis


3.jpg
Close up for Z axis

3mm to 5mm connector for M3 thread to stepper

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 楼主| zidan
2013-9-4 23:51:44 | 显示全部楼层
Close up of X axis
(>_< you can see the x-cartridge is empty and waiting hotend...)


After everything ready, we hope can open source it at early of Sept.

DIY设计了一台学生用的3d打印机

DIY设计了一台学生用的3d打印机

DIY设计了一台学生用的3d打印机

DIY设计了一台学生用的3d打印机

DIY设计了一台学生用的3d打印机

DIY设计了一台学生用的3d打印机
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 楼主| zidan
2013-9-4 23:52:34 | 显示全部楼层
1.jpg
Almost done, just waiting for a hotend.
At this moment, we decide use Jhead for testing.
However, we want to design a smaller size hotend for TinyBoy in future.
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 楼主| zidan
2013-9-4 23:55:20 | 显示全部楼层

DIY设计了一台学生用的3d打印

DIY设计了一台学生用的3d打印

Here is the laser cutting drawing,
you can see only one A2 sheet already enough for a complete 3DP.

DIY设计了一台学生用的3d打印

DIY设计了一台学生用的3d打印

If your laser cutter is smaller size, don't worry, the largest parts only A5 size.
(That means, A5 size laser cutter will be fine, since my one is A5 size too.)

When everything get ready, we will open source within few weeks.
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 楼主| zidan
2013-9-4 23:57:50 | 显示全部楼层
因為教开学生用corel draw, control board用corel laser, 唔好用磨石板

如果只cut 3mm板, 可以不用升降平台, 但如果要雕刻其他物件 (有厚度), 就要升降平台

我上年买了4部放学校用, 连shipping都系$hk10000左右, 运费大约$800左右, 不过要去货柜码头攞货, 之后再call客van自己搬

3mm板我行4mm/s, 不过不是行full power, 5想伤laser tube~

laser cut, 切parts周界wor

例如一件200mm x 150mm的长方形胶片

周界 = (200 150) * 2 = 700mm

如果4mm/s, 即700/4 = 175s < 3分鐘就切完~

control board有几个片子可以选用, 我用开的是corel laser (有plugin可以在corel draw中直接控制机器), 而磨石(moshi)牌的control board.... 不好用的说(我之前用过... 要先export做plt.... 再import去佢个software切割......想死)

如果budget ok, 当然要蜂巢平台啦 XD

btw, 佢跟机只有抽风, 没有过滤, 你可以在淘宝买一个好一点的(抽气   过滤)
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2013-9-5 00:34:22 | 显示全部楼层
哇  相当有意思
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