How to make a tool set
Life without tools is barbaric. But even simple tools can be expensive in rural parts of developing countries. Import duties bump the costs up higher than they are in the States or elsewhere, and sometimes only low-quality brands are available anyway. So, to hold off future barbarians, we'd like to show how to build a simple tool set on a very low budget. Larry Bentley, the man who figured out how to make these tools, said a wise thing: "Without tools, kids don't take stuff apart, and without taking stuff apart, you don't learn how things work." These tools, Bentley says, could be in the hands of the next William Kamkambwa,who made a working wind power generator from backyard scraps in a village in Malawi. Here's Larry's quick guide to DIY tools. The tools in this guide: Saw Pliers Wooden vice Wood drill bit / star drill bit Chisel Strap hinge vice
DIY Stereolithography 3D Printer
Comparateur d'imprimantes 3D : Les meilleurs prix, les dimensions, les fabricants... |3dnatives
Accueil > Comparateur d'imprimantes 3D Premier comparateur de prix pour imprimantes 3D avec plus de 200 modèles Vous trouverez plus de 200 modèles regroupant tous les types d'imprimantes 3D et d'équipements de fabrication additive, que ce soit les imprimantes 3D pour particuliers ou des machines de production. Nous y avons aussi inclus les stylos 3D et les imprimantes 3D avec des matériaux très différents comme le chocolat ou le bois. Comparer : Sélectionnez jusqu’à 4 Imprimantes 3D pour les comparer Trier par : Populaire | Prix | Note | Nom 218 résultats trouvés L'imprimante 3D Hephestos de chez BQ est une évolution ... L'Ultimaker 2+ est la nouvelle version de l'imprimante ... L'imprimante 3D Zortrax M200 du polonais Zortrax est un... L’imprimante 3D Dom Pro fabriquée par le français Dood ... L'Ultimaker 3 constitue la nouvelle génération d’imprim... L'imprimante 3D Sigma du fabricant espagnol BCN3D Techn... Dévoilée pour la première fois à la rentrée 2015, la Fo... La Up! La UP!
Top 10 Things You Can Upgrade with a Little Electronics Hacking
it is a skill to do a good solder joint, it comes with LOTS of practice. so most people who rarely do it will ever get good at it. Bingo. Of course, part of the issue is having a soldering iron at the right temp with a properly tinned tip. Newbies aren't using soldering stations but a cheap iron they got at rat shack (You have questions? We have deer-in-the-headlights... erm... answers!). I don't expect to ever master tricky stuff like smts or even multilayer pcbs so I'm not much better then a newbie, anyway - and I totally suck at sweating pipe joints. Ah, well... SMT is actually a bit better than through-hole once you get the hang of it.
3D printed replicas of people and pets from Captured Dimensions
I met Jordan Williams at the Inside 3D Printing Conference and Expo. When I asked him what he did he pulled out a tablet and showed me this: That’s him holding a 3D printed bust of himself. Jordan creates high-resolution 3D scans of people (and their pets) and has them 3D printed. Jordan runs a startup called Captured Dimensions and he just revamped the website, so we exchanged a few emails about the company. Jordan: We make our models of living subjects using the process of Photogrammetry. 3DP: That sounds expensive. Jordan: There was a great deal of trial and error throughout the initial phases of our setup. 3DP: What print services do you use? Jordan: Throughout development, we have sourced prints through several providers such as Shapeways, Sculpteo, local companies, etc. The photogrammetry method that Jordan uses takes hi-res pictures from 64 (and rising) angles at the same time and then stitches them all together to create a photorealistic 3D model. Related
ToyFabb - 3D Printing your own toys
Electronic Projects For Beginners
I made a guide for those people who are still starting with their electronics hobby. I started connecting wires, batteries, bulbs, buzzers and motors when I was 4 years old . Now that I am 13 years old, I now have a good amount of experience to build complicated electronic circuits. Learning electronics isn't that easy but if you put love and passion to it, I assure you that you would enjoy building your own experiments. It took me hours to finish making this guide since there is no software editor in the Sibmit>Guide in the "Submit Instructable Section" I had to type every word and picture using HTML codes which I learned from school. These are my all time favorite projects in instructables, I find them simple and easy to make. How To Solder by: noahw Third Hand by: rstraught Making A Customized Circuit Board by: ASCAS How I built a Solar iPhone Charger ($50) by: akbrennan Make a USB iPhone iPod Charger On The Cheap! Solar Cockroach Virbobot by: JoshuaZimmerman
The Revolution will be Caramelized - The CandyFab Project
Mendel90
I never understood why Mendel has a triangular prism frame. The way I see it, the frame only has two functions: - To hold the Y bars in a flat plane and to support the tops of the Z bars. It isn't good at doing either:The main forces on the Z bars are in the direction of the X-axis and the frame has no strength in that direction. It wobbles when the X-carriage changes direction. It also doesn't ensure the Y bars are in a flat plane because there is nothing to ensure one end triangle is not rotated slightly relative to the other. After a trip down a cobbled street in Sheffield my Mendel behaves as if one corner of the bed is lower than the other three. Other problems are: - It gets smaller at the top, so the maximum Z travel is limited by the extruder colliding with the bars. Two flat sheets are mounted at right angles to form the XY and XZ planes. The buttresses are bigger than they need to be. I used B&Q style fixing blocks to fasten the sheets together. Merry Christmas!
Lesson Plan for Making a Speaker Laboratory
©1995 The Regents of the University of California by Regan Lum Introduction: A speaker is a device that converts an electronic signal into sound. figure 1 Purpose: In this laboratory, you will explore how a speaker works. Materials: 1 permanent magnet 2 feet of wire 1 pencil tape or glue 1 Styrofoam or paper cup 1 signal source (tape player) 1 plug with alligator clips for tape player Procedure: Assemble material as shown in figure 1. Leaving about 10 centimeters on the end, wrap the wire around a pencil to make a wire coil and tape or glue it to the bottom of the cup. Conclusion Does the volume control on the tape player work on your speaker? Return to CEA Science Education Home Page
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