新车间 [Xinchejian]

Another update, this time from Alex on the Mendel RepRap 3d printer:

The good news is that I managed with Ricky to upload the firmware install the drivers in my laptop under windows 7 64 and make the whole thing move in every axes and the extruder to work and heat up.

The bad news are that the Z axes get stuck for some strange reason I couldn’t figure out (probably is not well adjusted or the screw bars don’t turn at the same speed). The worst part of the story is that I broke one of the printed parts trying to tighten the bearings. Also I couldn’t manage to load any material into the extruder. The extruder works and gets heated but I didn’t assemble this part so I’m not sure how it works. It looks like there is not enough room for the plastic to go through the heated head so the wheels keep on turning but the plastic strand never goes through.

To which Michael replied:

Thanks for getting the motors and extruder running everyone. No worries about broken parts, we’ll fix them. As for the z axis, I noticed the right screw isn’t exactly vertical and the bearing canted to the side so it’s likely the gantry will stick either in the upper or lower positions.  Some adjustments and it should work okay. And forgot to mention how to load the plastic. Maybe the springs I installed on the extruder were too heavy…that’s why I bought some lighter springs…left those in the clear plastic trays. Have to push back the idler block (thing the 4 springs are attached to) then can feed the plastic filament in. I’ll be back Friday night but if anyone wants we can do a skype call Wed night and work out some of the details.

Habib Belaribi will be at XinCheJian to hold a session on “Social entrepreneurs and Hackers” (register if interested) on Wednesday at XinCheJian. He shares the following Q&A about MakeSense and what they want to accomplish with XinCheJian’s hackers.

What is MakeSense?
http://we.makesense.org

We connect Social entrepreneurs with supercool individuals online through social networks and a webapp that will go live soon (http://www.makesense.org) and offline through specifically designed workshops that we call hold-ups.

What are social entrepreneurs?

Wikipedia says : “A social entrepreneur recognizes a social problem and uses entrepreneurial principles to organize, create and manage a venture to achieve social change (a social venture). While a business entrepreneur typically measures performance in profit and return, a social entrepreneur focuses on creating social capital.” More info at http://www.ashoka.org/social_entrepreneur

How can hackers help with?
That’s what MakeSense wants to determine by preparing a 1-day event facilitating the interactions between hackers and social entrepreneurs. The objective is to kickstart a sustainable loop of interactions bringing practical entrepreneurial realizations.

What questions are we trying to answer at the brainstorm?
After presenting you quickly the format of the event that we thought of at MakeSense, we hope to have your feedback (you hackers!) and refine the content of the event, for you hackers!

Who will be interested by this?
According to our statistics, anyone who likes XinCheJian..;-)

What will be the follow up to this?
Following this little presentation and the output of your brainstorming: we, at MakeSense commit ourselves to organize a 1-day event for you within 50 days.

What benefits do people get doing this?
Hacking business, New interactions for new Impact: Hackers + Social Entrepreneurs, Do it with joy

The water in aeroponic box has been staying at 30 degree and it’s BAD for the plants. With Michael’s help, we designed a new cooling system for the water. Hopefully, this will keep the water at more comfortable 20 degrees for the lettuces.

Time：December 4th at 1PM

Fees：RMB160 (including materials)

If you’ve never heard of the most useless machine before, it proves the the uselessness of this machine again. To keep it as useless as possible, by all means DO NOT google the term or follow the link below.

http://www.tudou.com/programs/view/YkuiawKN3JA/

If you want to make it even more useless, nothing beats wasting your own time to learn to make one for yourself (or make several of them). So come and join us @ XinCheJian to make some useless machines! All parts and
tools needed are provided with customizations welcome.

Sign up for the event here: http://xinchejian.com/event/?ee=79

我使用的是RP5 Tracked Mobile Tank Bas及arduinoDFRduino Duemilanove 328 (Arduino Compatible)Motor Shield For Arduino
使用的传感器是Adjustable Infrared Sensor Switch总共使用了三个。

我的传感器布置在坦克中部前方、右前方及右中部。主要策略是贴边走。
程序中的命名因为事前编程以为比赛方向为顺时针，而比赛时则为逆时针，因此没有来得及改名字而已。
以下为程序。

int E1 = 5;
int M1 = 4;
int E2 = 6;
int M2 = 7;//着部分是motor shield的定义
int front=8;
int leftfront=9;
int leftback=10;//传感器定义

void setup()
{
pinMode(M1, OUTPUT);
pinMode(M2, OUTPUT);
pinMode(front,INPUT);
pinMode(leftfront,INPUT);
pinMode(leftback,INPUT);
}
void foward()//前进函数定义
{
digitalWrite(M1,HIGH);
digitalWrite(M2, HIGH);
analogWrite(E1, 255); //PWM调速
analogWrite(E2, 255); //PWM调速
}
void back()//后退函数定义
{
digitalWrite(M1,LOW);
digitalWrite(M2, LOW);
analogWrite(E1, 255); //PWM调速
analogWrite(E2, 255); //PWM调速
}
void rightgo()//右转函数定义
{
digitalWrite(M1,HIGH);
digitalWrite(M2, LOW);
analogWrite(E1, 255); //PWM调速
analogWrite(E2, 255); //PWM调速
}
void leftgo()//左转函数定义
{
digitalWrite(M1,LOW);
digitalWrite(M2, HIGH);
analogWrite(E1, 255); //PWM调速
analogWrite(E2, 255); //PWM调速
}

void loop()
{
if (digitalRead(9)==1)//策略为如果右中部如果一直保持触发即贴住墙就好了，如果没有就向右转，直到接触到墙壁。
{
rightgo();
delay(600);
}
if (digitalRead(8)==1&&digitalRead(10)==1)
{ foward();
delay(500);
}
else if(digitalRead(8)==0&&digitalRead(10)==1)
{leftgo();
delay(500);}

else if (digitalRead(10)==0&&digitalRead(10)==1)
{
rightgo();
delay(100);
}

else leftgo();

}

程序以上
请各位指正批评。
另外附上我使用设备的购买地址

http://www.dfrobot.com/index.php?route=product/product&path=36&product_id=114

http://www.dfrobot.com/index.php?route=product/product&product_id=69

http://www.dfrobot.com/index.php?route=product/product&filter_tag=Arduino&product_id=49

http://www.dfrobot.com/index.php?route=product/product&path=35&product_id=96

http://www.dfrobot.com/index.php?route=product/product&path=35_39&product_id=264

今天的机器人比赛也许是今年最后一次的常规比赛，因为即将到来的节日等，新赛季的召开将在明年1月才会开始吧。
本次比赛，DFRobot派出了Ricky带着他的HCR机器人以及Rockets的坦克机器人，Paul的丛林王及子游的鳄鱼机器人参加了比赛。
子游的鳄鱼机器人（利用lego机器人搭建）勇猛无比，延续了手动组利用facetime进行视频传输的操作模式，但遗憾的是，操控性上有点问题，这次未能取得好成绩。
Paul的丛林王(由玩具车改造）依然延续着快速敏捷的特点，在稳定性上也有所提升，但是运气稍差，我相信，如果不是运气问题，Paul也许会获得成功。
Rockets的坦克机器人（PR5地盘+ardunio）已经好久没有出战，这次的比赛显然状态并不是很好，程序有点问题，稍后我将放出比赛的程序及我的策略给大家批评指正。很高兴，比赛中我的机器人在“大家”的帮助下，终于完成了两圈的比赛。
HCR机器人是本次比赛当之无愧的冠军，不管是从体型还是速度，还是策略都是这次比赛中最厉害的。从遥控操作的体验来看，亮度较高的情况下，视频基本上无法看清，和facetime比较效果较差，但不妨碍顺利操作。总之顺利获得了本次比赛的第一名。Ricky在几年未参赛的情况下，亲自操作HCR，玩的很high。恭喜Ricky获得本次的冠军。

3ders, a site about 3d printing, has an article about us: Hackerspaces in China.

Even with a mad scramble to find all the missing parts from the Botmill kit, Mike reports some encouraging news:

I finished the wiring, opto flags, feet, extruder, and wired up the power. Basically all that’s left is to square the axis, locktite the frame bolts, then plug it into the computer. Actually, just plug it in the computer and see if you can get the motors going and try extruding some plastic. We can calibrate and fine tune it after all the bugs have been worked out.

Quad Copter workshop by He QiChen – 26th Saturday 9am – 12pm
You’ll get every single part you need to build your own quad copter and fly it. This workshop is run by He Qichen
Sign up online here: http://xinchejian.com/event/?ee=73

Roboracing – Sunday 1pm – 4pm – free
If you’re going to race send an email to xinchejian@googlegroups.com, if you’re planning on watching please let us know by signing up here: http://xinchejian.com/event/?ee=71 race starts at 2pm loose with setup/testing from 1pm

Can the champion hold onto his *wictory* cup?

Come and join us, we’ve still got Kits available for those who want to learn to solder or produce something worthwhile in an hour. fun to do and fun to play with, get the brain machine to truly relax.

It’s always good to make stuff, nothing beats the self accomplishment of making something and finishing it, if you make bits n bytes all day, come and make bits n bobs.

This week at XinCheJian we have something for everyone.

He QiChen dubbed the “Mitch Altman of China” is a young creative entrepreneur with a very bright future. His latest idea is called Toy Story (云端漫步) which has got him noticed at the latest startup weekend. Learn more tonight as He QiChen presents his Vision.

Also going on tonight is a Christmas team, tonight is brainstorming. Some interesting things are already coming up on the mailing list so come and make something you can be proud of and share with others to make this December one of a kind.

If this doesn’t do it for you, this Sunday is robo-racing weekend, a great time to make your robot or modify it to race better is tonight.

今天是周三的例会。

新车间里来了鲸男，来自imlab的鲸男。是国内较早使用arduino并将arduino用于艺术领域的第一人。鲸男这次来新车间介绍了他之前的有趣的工作，并将其在日本留学期间的一些感受与大家进行了分享。最后鲸男介绍了今后imlab将要进行的工作，他和他的团队将就改善现有生活而进行设计，并进行原型开发，最终造福大众。鲸男及其团队最近将在上海进行调研，参加各种活动。imlab将会参加一系列的活动，并可能于下周到开源硬件厂商DFRobot进行沟通交流。

接下来Bryan介绍了开放的独立游戏开发游戏，并邀请大家到现场进行体验。

会后大家分开对各自关心的事情进行了互动和交流。

Edward展示了如何手工制造线路板。

Alex继续安装reprap，下个月，rockets会带巧克力来，我们要试验下“巧克力打印机”的可能性。