Les nouveaux outils informatiques vont-ils changer la conception de la lumière ? Ce projet ingénieusement baptisé “luminaire” nous montre qu’ils peuvent au moins influer sur le design des … luminaires. Désolé pour la répétition.

Il a été développé par Eric Brockmeyer, un étudiant de l’Institute for Digital Fabrication, apparemment affilié à la Ball State University (Indiana, USA). Ce grand luminaire exploite les qualités du bois de placage (ici de l’Indiana Hardwood), qui peut se plier, se courber, être translucide. Un rôle à contre emploi de ce matériau généralement associé au lourd, au rigide, à l’opaque.

L’explication du projet nous est fournie par le site de l’Institute for Digital Fabrication via une trad google : “Décrite par un modèle numérique entièrement paramétrique, la forme et les proportions du Luminaire “peut être facilement personnalisée, avec précision au laser-cut éléments de placage. Ces composants sont enrobés dans polyacrylique et assemblés à la main avec l’entaillage et joints coulissants. Les détails des joints coulissants était inhérent à la conception du développement, de sorte qu’aucun matériel n’est nécessaire, et n’importe qui peut assembler la forme définitive. Une fois lié à une interface web, le produit de la conception peut être personnalisé de façon unique par les consommateurs et livrée à plat-emballé.” Capiche ?

Epilogue : qui sait ce qu’aurait fait Poul Henningsen si il avait eut une machine CNC ?

Source : NoteCot

Coordenador Executivo da II Conferência Nacional de Cultura, Joãozinho Ribeiro concede entrevista coletiva na III Feira do Livro de São Luís

O poeta Joãozinho Ribeiro, Coordenador Executivo da II Conferência Nacional de Cultura (II CNC), concederá entrevista coletiva dia 27 de novembro, às 9h, no auditório “Casa do Escritor”, na III Feira do Livro de São Luis, na praça Maria Aragão.
 
Joãozinho Ribeiro falará sobre as expectativas e apresentará dados numéricos e objetivos da II CNC. As etapas municipais, já realizadas, atingiram um patamar muito além da expectativa: mais de 2.600 municípios brasileiros participaram do processo, discutindo estratégias para a implantação de políticas públicas de cultura nos três níveis federativos e elegeram seus delegados para participarem das etapas estaduais – a do Maranhão acontecerá dias 2, 3 e 4 de dezembro, no Centro de Convenções Governador Pedro Neiva de Santana.
 
O Maranhão deve atingir o patamar de 100 municípios com conferências realizadas (os dados ainda não estão consolidados), o que significa um bom crescimento em relação à primeira edição, de 2005, quando somente 36 realizaram as etapas municipais.
 
Segundo  informações do Ministério da Cultura, e de consultores que participaram do processo nos municípios maranhenses, “as conferências municipais foram bastante concorridas, com uma participação intensa de gestores, artistas e produtores culturais, o que indica que teremos a II Conferência Estadual de Cultura bastante qualificada”.
Joãozinho Ribeiro abordará todo o processo da II CNC, e das conferências setoriais, que elegerá os novos representantes para o Conselho Nacional de Políticas Culturais.
 
A coletiva é aberta para jornalistas, blogueiros, radialistas, midialivristas, agentes, produtores, gestores culturais, artistas e demais interessados.
 
SERVIÇO
 
O quê: Entrevista Coletiva sobre a II Conferência Nacional de Cultura.
Quem: Joãozinho Ribeiro, coordenador executivo da II CNC.
Quando: dia 27 (sexta-feira), às 9h, no salão Casa do Escritor, na III Feira do Livro de São Luís (Praça Maria Aragão).

Chronic pain/illness can be a sneaky intruder. It can sneak up on you and throw you off-balance, send you into a tail-spin, or plunge you into a deep depression. Take steps to prevent the pain/illness from taking over your life and defining who you are.

The following five steps are a good place to start.

1. Grapple with God until peace is found.
2. Find new meaning for living – finding and embracing a new normal. Change is not necessarily bad.
3. Learn new coping skills.
4. Grieve well and each time losses come up.
5. Keep current with communication so that relationships remain strong or get stronger.

Recovery is not a one-time arrival at a set destination. The process is ongoing and ever-evolving. Life will be different because of the pain and the losses suffered. Remember you don’t have to navigate this life alone. My goal as a shepherd and friend is to help you (a woman in pain) to become healthier in spirit. Give me a call.

“When we go through any significant grief experience we come out of it as different people. Depending upon the way we responded to this event we are either stronger people than we were before or weaker-either healthier in spirit or sicker.” Granger E. Westberg

Related Posts

• Ministering to the Chronically Ill: 20 Ways That Take 20 Minutes
• Peace and Hope While in the Depth of Pain – John Stumbo’s Story
• 13 Resources for Chronic Pain: Books & Websites
• 25 Reasons Why Christians Suffer
• Theology Impacts a Woman Experiencing Chronic Pain
• Chronic Pain is a Mind Body Condition
• Chronic Pain Brings Losses That Need Grieving
• Feelings & Thoughts Are Affected by Chronic Pain
• Just Because I don’t Look Chronically Ill Doesn’t Mean I’m Not
• 1/3 of People (but 2/3 of Seniors) Suffer From What?

Techno CNC is offering a $1,000 incentive to purchase one of the company’s CNC router machines.
Learn more about the discount and see a video of the machines in action.
The Pro-series CNC router is designed to meet the production needs of panel processing shops, and its LC series has two table top models for small-part processing. The Patriot CNC is aimed at prototyping, model making and schools teaching CAD/CAM technology to students.
For more information, call 516.328.3970.

I am full of gratitude for the generosity of people. In particular, the people of CNC. Below are just two examples of this generosity.

Bob created this stained glass cross. The glass came from windows that used to be part of the church. When Rudat Hall was renovated, the glass was removed, but kept safe for such a project as this. Gorgeous work, Bob. Thank for your time and talent!

This sign has generous news. Our church turned in 143 boxes for Operation Christmas Child. Thanks everybody. Thanks also to Kathy, Dan and Dona for organizing this.

Previous Photos from November’s Photo-a Day.

• Day 1 Photo: Christmas Tree with Broken, Tangled Lights
• Day 2 Photo: Birthday Boy
• Day 3 Photo: Mums at the Church Entrance
• Day 4 Photo: Simple Technology
• Day 5 Photo: Mystery Ice Cream Gift
• Day 6 Photo: Rocking Godson
• Day 7 Photo: Spontaneous Friends
• Day 8 Photo: Children’s Influence
• Day 9 Photo: Shoebox Gifts  
• Day 10 Photo: Changing the Woman in the Mirror 
• Day 11 Photo: Devoted Sisters
• Day 12 Photo: Prayer Calmed Me 4 This
• Day 13 Photo: Gratitude on the Internet
• Day 14 Photo: Chip’s Sweater
• Day 15 Photo: Stop
• Day 16 Photo: Faithful Workers
• Day 17 Photo: Necessary Books
• Day 18 Photo: Friends & No-Knead Bread
• Day 19 Photo: Beauty & Those Who Create It
• Day 20 Photo: Creativity & Encouragers
• Day 21 Photo: New Beginnings
• Day 22 Photo: God’s Presence
• Day 23 Photo: Feelings

Other Related Posts:

• What 24 Things Make My Gratitude List?
• Choosing 2 Express Gratitude During November
• Feeling Full On Gratitude
• We Cannot Be Grateful Without Being Thoughtful

P.S. Ann Tatum is hosting 30 Days of Thanksgiving. She encourages us to daily share our gratitude. Click here and be sure to scroll to the bottom of the post and click on Mister Linky. Then you’ll be able  to read other participants on this thankful journey.

“El país se hunde cada vez más reduciéndose las esperanzas de una vida mejor para las actuales generaciones”.
Cruz López, Dirigente de la CNC.

La existencia de casi tres millones de desempleados, la caída de las remesas hasta en un 18 por ciento y la creciente carestía en alimentos que, en algunos casos, supera el 200 por ciento anual, ponen en riesgo la estabilidad del país y son riesgo de estallidos sociales, advirtió la Confederación Nacional Campesina.

El diputado Cruz López Aguilar, dirigente cenecista, consideró que con tales indicadores resulta una falacia asegurar que el país ya salió de la crisis económica, "mucho menos cuando varios expertos en economía, incluso Premios Nobel, han sostenido que el remedio en México ha sido equivocado".

A través de un comunicado, sostuvo que la realidad es que millones de mexicanos que han caído en la pobreza extrema prueban que en lugar de escapar de la crisis "el país se hunde cada vez más reduciéndose las esperanzas de una vida mejor para las actuales generaciones".

Con base en las cifras oficiales, comentó que habría que añadir a la "cruda realidad" la presencia de más de 13 millones de compatriotas en la informalidad y otros cuatro millones más en la subocupación, lo que a final de cuentas repercute negativamente en más del 80 por ciento de la población.

En este contexto, se refirió a que en algunas zonas rurales la baja de las remesas llega a ser superior al 50 por ciento, debido a que la mayoría de los mexicanos que se encuentran en Estados Unidos también se han quedado sin empleo por la misma crisis económica.

Esto último, subrayó, al grado de que ahora el fenómeno se ha revertido pues los familiares de aquí mandan dinero para que los paisanos sobrevivan en el extranjero: oficialmente se ha reportado una disminución de las remesas cercana al 18 por ciento de los 25 mil millones de dólares registrados el año pasado, acotó.

Sin embargo, añadió, la cifra es mayor y es un problema que golpea más al campo mexicano, ya que la mayoría de los migrantes pertenecen al sector rural y en Estados Unidos son más de 400 mil los que han perdido su trabajo, se les ha reducido su horario o de plano les pagan menos bajo la amenaza de la deportación.

Lo más lamentable, sostuvo, es que al tiempo de que se pospone una reforma migratoria integral, Estados Unidos sigue con la construcción del muro fronterizo entre los dos países, cuando apenas hace unos días se pronunció en Berlín, Alemania, contra de la existencia de bardas que aíslan a poblaciones.

Para concluir, indicó que los retos que enfrenta la población tienen que ver con la carestía de los alimentos, pues muchos de ellos, como el azúcar, se han encarecido hasta en un 200 por ciento lo que ha provocado que disminuya el consumo de nutrientes y aumenten los productos "chatarra" que sólo engañan al hambre".

[José Luna (OEM)]

[Jonathan Ward's] pcb mill is as impressive as it is inexpensive. Twenty-six plywood parts, labeled A-Z, are used to assemble the machine along with the customary precision rods, stepper motors, and router assembly. His bill of materials prices the unit at $458.18, a small price to pay in order to forgo a multi-step etching process.

His test board shows some fairly fine pitch that could turn out most home-project circuit boards. We’ve contacted [Jonathan] regarding the specifics of milling the plywood parts out of a 2 foot by 4 foot sheet of plywood. Watch for an update with any information he’s willing to share. We hope he’ll make the milling files for the plywood parts available so that you can build a copy of the device for your own use.

[Thanks Charles]

I’ve had some progress with my Proxxon MF70 CNC conversion project. X and Y axes are complete, and so far it seems to work fine with no significant vibrations at a decent speed. I went through a few design ideas and eventually came to choose a rather simple one where I replaced the lead screws and made new nuts out of delrin for both axes.  This had the nice side effect of a somewhat increased resolution as well. In addition to the motor mounts, I also built the aluminum couplings between the leadscrews and motor shafts.

Now it’s time to work on the z-axis, which should basically be the same. Once the machine is complete, I intend to use it to manufacture parts for a new design for the Y axis, where I’ll be able to extend the travel of the axis by about 20mm. This should enhance the usability of the machine greatly.

I am just starting out down the CNC road (more of that news later).  I have been researching the best CNC workflow to produce robust GCode.  To start with I envisage that the majority of my CNC work will be 2.5D (eg cutting flat shapes, with the occasional recessed area for a bearing, or screwhead).  The workflow below satisfies that:

Future refinements:

3D workflow

Linux-based workflow ( so I can use the same PC as EMC2 is using)

2.5D CNC Workflow:

1)  Google sketchup:

Create your object.  This software is great for really quick and easy modelling.  Set the accuracy to a helpful value (eg 1mm if you’re just doing something quick and simple, 0.01mm if it’s going onto a knee mill).  One limitation is that circles are modelled as segmented lines – increase the number of segments until your mill doesn’t notice anymore.

2)  Export from sketchup to dxf using the ruby plug-in on this page:

http://www.guitar-list.com/download-software/convert-sketchup-skp-files-dxf-or-stl

3)  Edit the data (if necessary) in ProgeSOFT Smart:

Open the dxf in this free 2D & 3D CAD package.  The user interface is heavily based on AutoCAD, so you’ll be right at home here…  Free for non-commercial use, £240 for a licence.

http://www.progesoft.com/en/smart-2009#downl

4)  Import to CamBam, insert the machining data, then generate the GCode file.

http://www.cambam.co.uk/

5)  Load the .NC file into your chosen motion control software (EMC2, or Mach3 are common).  Machine away!

http://www.linuxcnc.org/

http://www.machsupport.com/

So i had these three servos and thought about how to use them in a project.  i saw flexpicker robots on the internets which were really impressive. had to have one. found six ball joints in my drawer and started to do some cad. i needed twelve ball joints or at least something comparable, so i had to make six from scratch. a few days of cnc-milling and drilling later i had my delta-robot. now it’s time to find a purpose for this thing. i thought about attaching some kind of head to it with an integrated display. i plan to control robot and display via rs232 and a microcontroller. so there’s more to come.

pics:

Sorry for the lack of post the past week, interim thesis presentations are coming up and this juggling of a research job while getting a masters thing leaves me with little time to update this site.(i’ll be back to daily postings soon! i’ve bookmarked alot! and thanks for the email recommendations! i’ll be posting them soon!) Here’s an update of a diagram, working models and some of my thesis mates, Ahana and Chuan Dian.

more next time!

211331     เทคโนโลยีเครื่องจักรกลซีเอ็นซี I     CNC Machine Technology I

เครื่องกลึงและเครื่องกัดซีเอ็นซี ส่วนประกอบของเครื่องและการทํ างาน มาตรฐานเครื่องมือตัดและเครื่องจับเครื่องมือ การระมัดระวังป้องกันให้มีความปลอดภัย การกลึงและการกัดการคํ านวณหาการป้อนความเร็วรอบและความลึกของการตัดสํ าหรับเครื่องมือตัดและวัสดุที่เลือกการทํ าโปรแกรมรหัสจีและเอ็ม

(CNC turning and milling machines, machine components and operation, cutting tool and tool holder standards, safety precaution, turning and milling operations, feed, speed and depth of cut determination for selected cutting tool and materials, G and M codes programming.)

(211331 มหาวิทยาลัยเกษตรศาสตร์)

211432     เทคโนโลยีเครื่องจักรกลซีเอ็นซี II     CNC Machine Technology II

เทคโนโลยีขั้นสูงเครื่องจักรกลซีเอ็นซี ฉเครื่องเจียรไนซีเอ็นซีเชิงกระบอกและพื้นราบ การแมชินนิงความเร็วสูง ศูนย์แมชินนิงแนวราบซีเอ็นซีเครื่องกลึง-กัดซีเอ็นซี เครื่องตัดโลหะด้วยลวดไฟฟ้าซีเอ็นซี เครื่องเจาะ กระแทกเทอเรทซีเอ็นซี เครื่องตัดเลเซอร์ และเครื่องจักรกลโลหะแผ่นซีเอ็นซี การระมัดระวังป้องกันให้มีความปลอดภัย การแมชินนิงเที่ยงตรง การออกแบบจิกและฟิกเจอร์ อุปกรณ์จับยึดชนิดไฮดรอลิกและชนิดใช้ลมอัด

(Advanced CNC machine technology, CNC surface and cylindrical grinding, high speed machining, CNC horizontal machining center, CNC mill-turn machine, CNC wire EDM, CNC turret punching, CNC laser cutting, and CNC sheet metal machines, safety precaution, precision machining, jig and fixture design, hydraulic and pneumatic clamping devices.)

(211432 มหาวิทยาลัยเกษตรศาสตร์)

211434     การฟื้นฟูสภาพและออกแบบชุดควบคุมเครื่องจักรกลซีเอ็นซี     CNC Machine Retrofitting and Controller Design

พื้นฐานของชุดควบคุมเครื่องซีเอ็นซี ฟังก์ชันและการทํ างานของเครื่องจักรกลซีเอ็นซี ส่วนประกอบทางไฟฟ้า การวิเคราะห์เสถียรภาพและสมรรถนะของระบบควบคุมป้อนกลับระเบียบวิธีทางโดเมนความถี่ การแทนปริภูมิสถานะ ตัวควบคุมแบบพีไอดี การออกแบบตัวควบคุมสมัยใหม่ การชี้บ่งระบบ การวิเคราะห์คงทน การออกแบบตัวควบคุมโดยใช้เครื่องมือทางซอฟต์แวร์ระบบควบคุมดิจิทัล และการประมวลสัญญาณดิจิทัล การควบคุมการเคลื่อนที่หลายแกน

(CNC controllers fundamentals, functions and operations of CNC machines, electrical components, feedback control stability and performance analysis, frequency domain methods, state-space representations, PID controllers, modern control design, system identification, robustness analysis, control design using software tools, digital control and digital signal processing, multi-axis motion control.)

(211434 มหาวิทยาลัยเกษตรศาสตร์)

Blir troligen klar med Heidenhein i morgon. Skall bara köra ut slutövningen och städa maskinen. Sedan bär det iväg på praktik inom den närmaste tiden. Praktiska provet på det gröna certifikatet skall också klämmas in. I och för sig kan det gå upp till ett halvår innan man måste ha gjort det, men att dra ut på det är ju heller inte så bra. Sedan skall jag gå på pneumatik och hydraulik, cad/cam, svets och så skall jag försöka få in sinumerik styrsystemet också innan jag slutar. Beror lite på om jag får det jobb jag hoppas på. i så fall behöver jag det inte.

Nu skall jag sätta igång grand turismo till att köra ett endurance race i b-läget. Ett varv och sedan bara in i depå och köra igång automatiken. Slappt

Some time ago i got into rubik’s cubes by accident. after a while i thought it would be nice to solve the cube using a different perception than the visual. i decided that i wanted something haptic.  so i went and designed some patterns that were

• easily distinguishable
• systematic
• plain
• easy to make
• rotation invariant

the result were three different basic shapes: cross, box, hollow box

“why no circle?”. well i decided to stick to the concept of straight lines. but i added some roundings just for a more comfortable feeling. anyway, it’s three basic patterns in a normal and diagonal version each since the colors on a rubik’s cube are also paired. we have [red/orange], warm colors on opposite sides of the cube, [white/yellow], bright colors and [blue/green], cold colors.  i wanted to keep that concept in order to have a better orientation when solving the cube. so each [normal/diagonal]-pair is located on opposite sides of the cube.

finally the plates were cnc-milled out of  pcv and it was a really painful amount of work to clean them with steel wool.  it took a while till i got my fingerprints back. i peeled off the original labels of the rubik’s cube and mounted the plates using double-sided tape.

54 plates later the cube was finished. the first days the cube felt a little uncomfortable, but it became better because the edges wore off. solving the cube takes me about five times longer than solving a normal cube, but it’s an interesting challenge every time.

here’s a picture of the finished cube:

LOCATION:  CLEMSON, SC & PENDLTON, SC  /
FABRICATION: DESIGN BUILD & DIGITAL FABRICATION
LOCAL CODE: OLD SOUTH  /  AREA: —–
DATE: 2008   /   PROFESSOR: JORI ERDMAN

Stewardship South is dedicated to cultivating a sense of stewardship, particularly in regards to the environment and culture of the American South.  The ability to design and construct built works is a privilege and a trust given to us by the communities that we work within.  We bring skills and knowledge to every situation and we have an ethical responsibility to exercise good judgment and care in each of our decisions.  Often there is no clear right or wrong answer or even clearly defined problems.  In each situation the best response will be one with good intentions and mindful of the impact on the complex issues that comprise each site.  The studio, Stewardship South, should result in built projects that respond graciously and with care to the communities, environments, culture, and discipline within which they are constructed.  The projects should demonstrate stewardship through design, craft, completion, and fiscal responsibility.

PROJECT 1 — KEESE BARN — PENDLETON SC

The project was to expand on a previous projects constructed by graduate students called SOUTH.  SOUTH’s initiative was to understand the working of a neighborhood that is devastated by poverty.  Once existing was an important structure that served the community in numerous ways, including a general store, public space, and cultural storage.  Over time the structure deteriorated and became to expensive to repair.  Clemson University School of Architecture was asked if they would help solve the issues facing the site.  The idea was to memorialize the site, to create a permanent public space.  The first initiative was to deconstruct the old structure, document and recreate a temporal construction.  The idea of temporality became the mode of making for all works.  This idea was used to reflect deconstruction, breaking down, and then rebuilding.  Much like that of how slavery was broken down, and rebuilt and still rebuilding in this country, the idea that segregation was eroded away and built back as equality.

All site construction was based on the idea of temporality, so that over time the site could change and adapt to new generations.  To allow for this the deck was built on top of pin foundations.  Pin Foundations allowd for zero footings and zero concrete to be poured.  Instead pin foundations are pre fabricated, weigh 50 lbs. and only reguire four pieces of 4’ length galvanized pipe to be installed.

To reduce the need for mainteance the deck was constructed from treated lumber, and decked with TREX  Decking.  The decking is made from a plastic composite and never needs to be sealed against the elements

The formwork for the concrete pour consisted of 40 sheets of 2” rigid insulation foam.  The form of the block was sectioned every 2 inches in Rhino, then files were made to CNC mill each of the secions.  Also embedded into the files were the notches for the 2 x 4 framing to be accepted into the formwork.

Because of the complexity of the pour and various undercuts in the form, the formwork had to be installed in pieces.  So once one section of the pour was finished another section of formwork could be stacked and so on.