新车间 [Xinchejian]

新车间发特急[2012]1号文件

关于新车间场地搬迁日期改动以及接待外宾米奇奥特曼来访的通知

为了贯彻落实新车间为广大创客更好服务的精神，做好积极提高新车间软硬件环境的工作，经研究，决定将新车间场地搬迁日期推迟至2012年4月15日（周 日）晨8：30分。为了能更好的完成这次搬迁攻坚战，我们需要发动广大群众的积极性，在搬迁前日（2012年4月14日）晚8：00点开始一次史无前例的 打包清理工作，请父老乡亲们奔走相告。

欲行兮则悲欢共在，欢其新址之瑰丽，悲其时而不定之仓促，然，乘此新旧交替之良辰（2012年4月11日周三晚7：30分），米奇奥特曼乘风而至，另陋室 生辉无数。其人乃创客之祖，为无数创客之辈膜拜，名贯古今之奇人也。其一行人等更是高的高，矮的矮，黑的黑似炭，白的白似雪，太阳穴鼓着，腮帮子笼着，个 个是身怀绝技!今晚如若不来，将悔过今生。

By popular demand we _didn’t_ move last weekend, in-fact this is the last week in the space. we’re moving and nothing will stop us this time, hopefully by Sunday the 15th we will have lights in the new space! otherwise some members of XinCheJian will be hanging Blue and Red Florescent lights near the windows. If you would like to help with packing, 8pm @ XinCheJian on this Saturday or 8:30am on this Sunday @ XinCheJian for the move, spread the word!

Today, Wednesday we have the /ultra-mega-wow-wednesday, a spectacular!/ we have Mitch Altman the Grand-daddy of hacker-spaces along with visiting Hackers, this will be the ultimate Wednesday that you will only kick yourself if you miss, check out the section below titled “Recent changes at XinCheJian” for more updates at the space!

This evenings confirmed presentations: 3D implants, microcontroller hacks and “car-radio-be-gone”.

Wednesday Presenters
Mitch Altman is a San Francisco-based hacker and inventor, best known for inventing TV-B-Gone remote controls, a keychain that turns off TVs in public places.  He was also co-founder of 3ware (a Silicon Valley RAID controller company), did pioneering work in Virtual Reality at VPL Research, and created the Brain Machine, one of MAKE Magazine’s most popular DIY projects. For the last many years he has been on the road from hackerspace to hacker-con leading workshops around the world, teaching one and all to make cool things with electronics and teaching everyone to solder with his open source hardware kits. Mitch is one of the co-founders of Noisebridge, a San Francisco hacker space, and President and CEO of Cornfield Electronics.

Mitch will talk about his newest project “car radio be gone!” also ask to see his hackerspace passport!

Tobias Schneider, I am an electrical engineering student at Technische Unversitaet Muenchen. I’m interested in embedded electronics and light installations. I was part of the AllColoursAreBeautiful art installation in Munich, which was partly funded by the city. Recently I was involved in producing eco friendly, rechargeable electronic name badges for a big German maker/hacker convention. I’m going to present this name badge at the Maker Carnival in Beijing and give a workshop to create own addons for the badge.

Florian Friesdorf, I studied electronic engineering and system ergonomics at the Technische Universitaet Muenchen (TUM), Munich, Germany. For about two years now, I’m a fully self-employed Munich-based software developer mostly working
with python and javascript. While I earn my living developing software, I’m exploring to extend that to haptic user interfaces involving wooden blocks, equipped with touch screens and sensors to measure their relative position. One application would be the hierachical modeling of workflows in health care. In cooperation with the The Department for Human Factors Engineering and Product Ergonomics at the Technische Universitaet Berlin, Germany an open source software was created. I now want to produce arduino-based prototypes of the haptic UI and am looking forward to the Maker Carnival to share thoughts and ideas.  When not in Munich, I’m on sprints and hackerspaces around the world.

Jimmie Rodgers, I am a full time hacker, maker, circuitbender, etc. I design open source hardware kits, as well as teach a variety of workshops, and give talks on many topics that interest me.  I travel and run workshops quite a bit!  My most popular kits are the Atari Punk Console, a simple and fun sound generator, and the LoL Shield, an Arduino shield with lots of LEDs on it!  I am co-founder of Artisan’s Asylum, a huge hackerspace in Boston.

Charles Paul, I am an IT consultant from New Orleans, LA. Currently the lead software developer at Pixt.com. I consult, design, develop and deliver non-trivial solutions for tricky problems; doing this in the past for Charles Schwab, Hewlett Packard, Wells Fargo, and the largest class action firm in the USA, among others. In a previous time I was also employee #1 at Metrix:CreateSpace, and am currently involved in a similar endeavor here in New Orleans. I am very much looking forward to visiting China and better learning the language!

Yair reshef, An art technologist and educator, consulting some of the leading art and design institutes in Israel. In this capacity I help promote creative technology in the arts and vise verse. A recent such example is fabrication of an hepatic car wheel for a year long collaboration between Bezalel academy of Arts and General motors. as an educator I give workshops and help people experience rapid prototyping of electronics and code. My students ranging from small kids to teachers and faculty. Coming from Israel, I keep a close watch on our start-up culture, and am always amazed by the power of a few committed talents to bring things to be.

Simon Schubert , I’m an EE major converted to Computer Science PhD student, currently studying in Lausanne, Switzerland. While doing my EE studies, I balanced myself by being a developer for the DragonFly BSD Operating System; now that I’m doing Computer Science, I picked up electronics as a hobby. Besides being a member of our local hackerspace, I am a (inactive) HAM radio operator and I keep dismantling and hacking various electronic and mechanical items in my house. My latest venture is a cheap, compact and powerful microcontroller development platform, the MC HCK (http://mchck.org).

Simon will be giving a talk on micro controller hacks

Jacob Rosenthal, I’m a freelance embedded and erstwhile web and database developer. I’ve spent the last two years founding and educating at the Phoenix Arizona hackerspace HeatSync Labs where I am still on the board of directors. My personal interests include body computing and modification, 3d printing, and electronics. I am passionate about making the future practical.

Jacob will be giving a talk on 3D implants!
Recent changes at XinCheJian

Membership is now Just 100rmb per month per member, for an additional 200rmb a month you can also store your projects/stuff in the space in a box that does not exceed 50x50x30cm, you can contribute more money if you want as a donation. Failure to pay membership will result in your junk being stored at XinCheJian becoming a donation to the space. XinCheJian will no longer offer community parts but instead sell them in sets, for example 10 resistors for 1rmb to cut down on waste and mess. Members will have access to the space and the tools, strangers must be accompanied by a member at all times and will be responsible for that friend during that period at XinCheJian. For Full details see http://wiki.xinchejian.com/wiki/Policy or http://wiki.xinchejian.com/wiki/Policy/zh

Chen Linjiong,a mechanic. He had been engaged in the maintenance of semiconductor equipment and packaging equipment design. He is strong interest in mechanical and electrical equipment,and  like DIY production.He had DIY the successful production of uno of arduino, mega2560 and some expansion board.Now he is interesting open source 3d printer, focused on improving model’s surfuce accuracy and finish.
Introduced us to his production of transparent acrylic 3D printers!

May 30th~31st 2012

First 3D printing salon in China, mark it on your calendar now!

www.3dpchina.com

A few days ago, Jeremy’s Weibo got retweeted over a thousand times and shows a lot of interests in 3D Printing and related technology. In this week’s Wednesday night event, we invite a few speakers to give talks on their experience with 3D printers

Cheng Zhang a MCAD&PLM Competitive Strategy Specialis be giving a talk on Open engineering and will help to debunk myths on 3D printing.

Staphany will discuss her experience building two Makerbots

Michael will talk about the state of RepRap in XinCheJian

A few days ago Michael sent out this update about the 3D Printer:

Sorry for the lack of updates on the 3D printer.  The white ABS [Acrylonitrile Butadiene Styrene; a thermoplastic] is horrible.  Use the grey PLA [polylactide; thermoplastic aliphatic polyester] from now on.  I reinstalled the old nozzle (made a new one and promptly burned it out the same day) and was able to print without making any changes.  It actually sticks to the platform and to each other.  Was able to get 1/3 of the 2cm box before it sheared off.  Still have problems with flow control, but happy that it works better.  The toothed gear may be too sharp, since it jams up with plastic after a while.  Need to clean it out every so often, but it still pulls filament even when jammed.  Also started to wrap up the wiring.

I’m going to be out of town for a while, so who ever wants to take over and get it flowing better, be my guest.

Updates for everyone.  First, thanks Alex for the continued dedication on the printer. He identified a few problem we can fix and improve on.  2 major issues:

1. Z axis is stuck, moves a little bit but then stops. Not sure if it’s a mechanical issue where something is jamming or possibly electrical. Alex will try loosening and tightening the belt tension to see if that helps. Other potential issue is one of the screw rods and bearing seem to be canted, which may be the cause of the jam. I recall being able to make it move up and down by pulling on the belt by hand. If that continues to work, maybe the problem is the motor isn’t strong enough. Lucky me, I’ve been playing with motors and have one that’s 3x more powerful. Will mount that one if nothing else seems to work.

2. Filament feeds into the first hole but can’t find the second hole into the heating chamber. Seems Alex can push the idler bearing block back and feed the filament into the first hole and then between the brass gear and idler bearing. But then the filament is pushed to the side slightly and can’t find the second hole itself.  Likely problem is the brass gear I used is too large. 2 solutions, reduce the gear size or help the filament into the second hole. Reduce gear size by either buying a smaller one or file down the one we have. Help the filament into the second hole can be done with a small ramps or funnels around the second hole. I’ll give the ramp/funnel method a try first. If that doesn’t work, then we’ll go gear hunting.

Z axes works after untightening the belt. Bearings may be too tight now
but is easy to adjust and we need to fix up the broken part. The part is
not a essential but helps to have precision on the axis.

I wasn’t able to unassemble the extruder part to try hand feeding and
see if extrudes but Ricky just told me that he received the new parts
so Saturday we will be able to change the whole thing… hopefully ;P

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.

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.

Alex update on the progress of the new Botmill 3d printer:

I was working on the 3d printer with Mike last Saturday and the parts for the frame, Z and Y axes are almost ready and calibrated.

We are missing some parts to assemble the motors and the head. And the X axis is still work in progress.

It’s a bit strange that Botmill would sell kits with missing parts (M4 threaded 70mm rod, M4 insert, etc). Some of the reprap parts are low quality (misprinted gears) and you have to be extra careful tightening nuts as I’ve accidentally cracked the extruder carriage.

Work on this will continue on Wednesday evening at the space; feel free to help out!