I am pleased to share with you that the DIY AFM is reported by the latest Nature Nanotechnology 10, 480 (2015) that the DIY AFM is assembled by junior high school student and successfully measure PM 2.5 particles.

Microscopes are awesome! They help us see things that are not visible to bare eyes. Optical microscopes can only see micro scale (1/1,000 millimeter) structures. However, you can explore nano scale (1/1,000,000 millimeter) world by Atomic Force Microscopes (AFM). Yet a stock-ready AFM usually costs hundreds of thousands of dollars to buy. Thus we are providing you a solution to make your own AFM optomechanical system out of daily used parts including optical pickup unit (OPU) in a DVD player and piezo buzzers in your watch. The total cost is between 500 to 1,000 dollars (AFM controller not included). Most of the traditional AFM systems use beam deflection method for monitoring the AFM probe, the low cost educational AFM directly use an OPU for the same purpose. This low cost educational AFM is originally designed and made by Dr. En-Te Hwu, Institute of Physics, Academia Sinica, Taipei, Taiwan. Idea of using circuit boards as structure: Sebastian Buetefisch.

Traditional AFM:


DVD OPU based AFM in German National Metrology Institute

顯微鏡可讓我們看到肉眼無法觀察的結構,实在是太棒了!光學顯微鏡能看到微米等級(1/1,000釐米)結構,然而原子力顯微鏡更可讓我們看到奈米(1/1,000,000 釐米)結構。一般的原子力顯微鏡動輒數萬至數十萬美元,只有研究機構可以負擔得起。我們希望透過這次介紹,告訴大家如何利用身邊的元件,包括DVD Rom的光學讀寫頭以及你手錶裡面嗶嗶叫的壓電喇叭,來製作一套自己的奈米級原子力顯微鏡的光機系統,材料價格不超過1000美元(不包含控制器)。傳統原子力顯微鏡大多使用光槓桿原理,而教育型原子力顯微鏡使用像散式光路偵測探針位移,此教育型原子力顯微鏡由台灣中央研究院物理研究所胡恩德博士設計並製作。使用電路板作結構之概念源自:Sebastian Buetefisch.

显微镜可让我们看到肉眼无法观察的结构,实在是太棒了!光学显微镜能看到微米等级(1/1,000毫米)结构,然而原子力显微镜更可让我们看到納米(1/1,000,000毫米)结构。一般的原子力显微镜动辄数万至数十万美元,只有研究机构可以负担得起。我们希望透这次介绍,告诉大家如何利用身边的元器件,包括DVD Rom的激光头以及你手表里面哔哔叫的压电喇叭,来制作一套自己的納米级原子力显微镜的的光机系统,材料价格不超过1000美元(不包含控制器。传统原子力显微镜大多使用光杠杆原理,而教育型原子力显微镜使用像散式光路侦测探针位移,此教育型原子力显微镜由台湾中央研究院物理研究所胡恩德博士设计并制作。使用电路板作结构之概念源自:Sebastian


Step 1: Materials and Tools 材料與工具

Materials for the low cost AFM are: 1.OPU disassembled from a DVD ROM. 2.Piezo speakers. 3.Signal connector. 4.Precision screws. 5.Circuit boards. The tools needed are: 1.A soldering iron 2.Solder 3.Quick-dry adhesive 4.Epoxy 5.Magnets 6.Screw driver. The consumable is AFM probes (working frequency 300 kHz).

組裝原子力顯微鏡需要材料為:1.從DVD光碟機上的讀取頭 2.壓電喇叭 3.訊號接頭 4.精密螺絲 5.磁鐵 6.電路板結構。 工具為:1.烙鐵 2.銲錫 3.瞬間膠 4.AB膠 5.螺絲起子。耗材為:原子力顯微鏡探針(工作頻率300k赫茲)。

组装原子力显微镜需要材料为:1.从DVD光驱上的激光头 2.压电喇叭 3.信号接头 4.精密螺丝 5.磁铁 6.电路板结构。 工具为:1.烙铁 2.焊锡 3.瞬间胶 4.AB胶 5.螺丝刀。耗材为:原子力显微镜探针(工作频率300k赫兹)。

<p>Hi Dr. Hwu,</p><p>This project looks incredible! Could I get a set of the design details? I work extensively with AFM in a university lab, and have been looking for a hobby project to do in my spare time. My email is &lt;yan.ordier@aol.com&gt;. Thank you!</p>
<p>thanks alot for this i was wondering if you had more info on this also. mellemell09@gmail.com please get back tome on this</p>
<p>Thanks for your contribution...planned on working on it..can u email me the pdf file and more design details? i'm rizal, bachelor in mecthatronic, now postgraduate student from SEE laboratory..now working on nano scale project..thanks</p><p><br></p><p>rizalrazuwan2@gmail.com</p>
<p>Sent! I hope you can enjoy! </p>
<p>I am very interested in the work. I would like to build one. Can you add me to your mailing list which provides more details on the design? My email ID is deepaktester365+diyafm@gmail.com</p>
<p>Sure! Sent!</p>
<p>Dr, Hwu,</p><p>I really enjoyed reading your instructables and would like to try and make one myself.</p><p>Could I get more specific information about your build<br> here? Any schematics, information about the PCB'st, detailed instructions, etc.?</p><p>mail: johan.dirkbult@gmail.com</p><p>Thank you for your time and effort.</p><p>Johan</p>
<p>Hi Johan, some references are sent. Have fun!</p>
<p>This is one of the most amazing indestructibles I've seen yet.</p><p>I'm definitely going to build one, and I'll post my results when I'm finished.<br>Add me to your mailing list, I'd also like the detailed design files, schematics, software, bill of materials etc needed to build one. My e-mail is justinikus@gmail.com<br><br>Keep up the excellent work! <br><br>-Justin</p>
Hi Justin, thank you! I've sent some references to you.
<p>Does anyone have the dimensions of those PCB's? Cad files or gerbers? Thank you for posting this Instructable, Dr Hwu!</p><p>Isaac</p>
<p>My email address is isaac@revsci.com. I would also like to know how the laser and probe move along X and Y axis. The stepper motor in the OPU only goes two directions, right? Thank you.</p><p>Isaac</p>
<p>This is a scanning sample type AFM, so the laser and AFM probe are fixed. There is no stepper motor for approach, I use the voice coil motor for AFM probe alignment. Some references are sent.</p>
<p>Dr, Hwu,</p><p>Could I get more specific information about your build here? Any schematics, material list, detailed instructions, etc. would be appreciated! </p><p>My email is kzabawa2@illinois.edu</p><p>Thank you!</p><p>-Kamil</p>
<p>Hi Kamil, sorry for late reply! I have sent you already.</p>
Hi Dr.Hwu,<br>The DIY AFM is really an Intriguing project. I just wanna built one by myself~ Could you send me the BOM, schem, software, etc.<br>Thanks a lot.<br>xoidxerg@gmail.com
<p>Sorry for late reply! Some reference are sent!</p>
<p>Hi Dr. Hwu.</p><p>Im interested in this project..can i get the details of this project? </p><p>liyana.ismailisamail@gmail.com</p><p>Thanks</p><p>-Liyana-</p>
<p>Hi Liyana, I have sent some reference. Good Luck!</p>
<p>Hi Dr. Hwu,</p><p>I am interested in getting more information about the AFM (schematics, materials), it seems to me a very inspiring project so that my students can do it. I would also like to know the whole story about it. Thank you.</p><p>Sergio</p><p>satp33@aol.com</p>
<p>Hi Sergio, I've sent you some reference. </p>
Thanks and sorry for the delay in answering is that just started my vacation, again many thanks for giving me the information<br>Regards Sergio
<p>Dr. Hwu,</p><p>Thanks for your incredible effort, and being generous enough to open-source this project; hard to imagine you've brought such a complex technology to within hobbyist reach.</p><p>In the first paragraph, you mention &quot;AFM controller not included&quot; in the cost estimate; what do you mean by AFM controller -- can you link to one?</p><p>Also, I am interested in the additional files/details; could you please send them to ajohansson1981@gmail.com</p><p>Thank you again!</p><p>Anders</p>
<p>Hi Anders, the AFM controller is FPGA based system, recently my student developed a low cost version controller. I've sent you related information.</p>
<p>Hello Prof. Hwu,</p><p>This is a great tutorial. Can you please send me the schematics with dimensions and information to build one myself.</p><p>alyrefay@hotmail.com</p><p>Thank you</p><p>Aly</p>
<p>Hi Aly, sent! you are welcome! </p>
<p>Hello Professor Hwu,</p><p>I am interested in further details, could you be so kind and send me some more information to jankem2@web.de.</p><p>Thanks, Jan</p>
<p>Hi Jan, more detailed material about the AFM are sent. Enjoy!</p>
<p>Hi,</p><p>I like it!</p><p>Pls, send me too.</p><p>zsigozs@gmail.com</p><p>Zs</p>
<p>Hi Zs, sent! Welcome!</p>
<p>Professor Hwo,</p><p>I would like to build this also. Could you send the details to me at rob.sleezer@gmail.com? I would really appreciate it.</p><p>Thanks,</p><p>Rob</p>
<p>Hi Rob, the related materials are sent ,enjoy!</p>
胡博士您好,<br>我是一名來自台南的學生目前研發過自己的渦輪分子幫浦跟一套很土炮的pvd系統(有做到一半暫停的用微波爐零件組成的pecvd系統)有志想研發一套從沉積、spin coat到蝕刻還有SEM的儀器,希望能做low cost版不需要到業界standard但是就是一個proof of concept希望青年能多接觸那些原本只有在大學實驗室或是公司fab的儀器。不知道您能不能分享這個projext的相關資料,也希望未來能多交流這種hobbyist-made instruments:)<br>我的信箱是a2902793@gmail.com<br>再次謝謝教授<br>立中
<p>Hi Johnny, I like the phrase &quot;hobbyist-made instruments&quot;. I guest you are a &quot;Citizen Scientist&quot;, I hope you can enjoy the material I sent.</p>
<p>Dear Professor Hwo,</p><p>I think that this is a great proyect.I 'm intersted in making it.Is there any possibility that you could send me the schematics, details about the hardware components, and the control software you used to produce this device?</p><p>Thank you</p>
<p>Hi elarre, pls send me email or leave yours. :)</p>
<p>Respeted Dr. Hwu,</p><p>I am a student studying Medical Nanotechnology, I think that this would be a fascinating project, and I really want to try building it. Is there any possibility that you could send me the schematics, details about the hardware components, and the control software you used to produce STM and AFM . Looking forward for your reply sir</p><p>My email is: dhayakumar@live.in</p><p>To and For the science :) To serve HUMANITY :)</p>
<p>Hi dkumar, thank you! The field of Nanotechnology has a very high entering threshold ($$$). I hope the material I sent can help you for your study!</p>
<p>Dear Professor Hwu,</p><p>After a long search for building a low-cost AFM I ended up here at the Instructables website where I am member for so many years already :-) and I'd like to ask you if you could send the relevant information concerning the AFM project.</p><p>I would greatly appreciate this and thank you in advance. My Email sandor.szabo@gmail.com</p><p>Best regards,</p><p>Alexander</p>
<p>Hi Alexander, I've sent some relevant information. Hope that helps! </p>
Dear Professor Hwu, <br><br>I do not major in this area, but building a low-cost astonishing microscope to discover the microscopic world has long been my dream. Thanks for opening up an unique first of the popularization of low-cost AFM. And I would really appreciate if you could provide me some more information about your project. <br>And maybe I can improve it in some ways :)<br><br>My email address is: yuluobin45@gmail.com<br>Thanx in advance.
<p>Hi BookerFitz, I am glad that you like this development. Some references have been sent. Enjoy!</p>
<p>Hello Professor Hwo,</p><p>Thank you for sharing this project and the information,it is really astonishing.</p><p>I am currently doing my graduation in physics.I am working with some of my juniors on building a low cost stereoscopic microscope.I would really appreciate,if you could provide me some additional info on electronics,schematics,code,etc. about your project. </p><p>My email address is: nkortikar123@gmail.com<br>Thank you in advance.</p>
<p>Hi Nachiket, some references are sent. :)</p>
<p>Hello Prof. Hwu</p><p>I'm interested in your STM project and I want to build it.</p><p>I ask you if it possible for you to send me the circuit diagram,the basic things that I need and sizes of elements and the other things that you think is useful for me.</p><p>My email address is:engreza95@gmail.com</p><p>thanks in advance</p>
<p>Dear Professor hwu </p><p>Thank you for sharing this impressive project and the information on use<br> of OPU based instrumentations. I studying engenring physice of laser<br> i am very interested in this inspiring project, <br>Greatly appreciate if you send me more details and related schematics or<br> software.</p><p>kambiz3221@gmail.com</p><p>best regards</p>
<p>Here you go!</p>

About This Instructable



Bio: Research Scientist En-Te Hwu E-mail: whoand@gmail.com Linkedin: http://www.linkedin.com/profile/view?id=129035139&trk=nav_responsive_tab_profile_pic
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