• M2 ATX chinese clone psu problem

    Updated: 2010-01-31 04:31:27
    Hi everyone, On the last year, i’ve been becoming more and more interested on learning how to make and understand electronic circuits, but...

  • Mendelssohn & LCA2010

    Updated: 2010-01-30 05:31:00
    : : RepRap : Blog Blog for the RepRap project at www.reprap.org a project to create an open-source self-copying 3D . printer Saturday , January 30, 2010 Mendelssohn LCA2010 Finally got over the flu that I brought back from LinuxConf 2010. Mendelssohn is now printing properly with a stepper-driven extruder and a new heating element barrel design . This is essentially the old hack using a radio aerial and a heatsink . The M4 nozzle not shown fits inside the feed tube , so increased pressure forces the nozzle into a shoulder at the end of the tube . So the more pressure , the better the nozzle seal . The shoulder is created by slowly cutting the tube with a pipe . cutter I'm dip-coating the 3 16 brass tube in fire cement slurry , drying this , and then wrapping the dry ceramic in Kapton to protect it while I wind on about 6 ohms of nichrome . If the Kapton gets vapourised , the heater element will not then short out on the brass tube . The heatsink traps the extruder as well as cooling the end of it , and also acts as an anchor point for connecting the extruder assembly to the X . carriage Works so far . No lathe needed , no PTFE , no creep , no . leaks Vik v Labels : aerial brass

  • How-To: Amplify your gamer guitar

    Updated: 2010-01-28 16:00:36
    : : : Make Technology on Your Time RSS Blog MAKE Magazine Videos Podcasts Projects Forum Community Maker Shed Store Hydrogel is mostly water , but strong as silicone rubber Main Giant 16-segment displays from fluorescent tubes How-To : Amplify your gamer guitar Randy Sarafan made a cigar box style guitar from an old NES , and shows us how to add a pickup to amplify the sound in his Instructable . He uses a NES controller cable for the audio , so classy Posted by Becky Stern Jan 28, 2010 08:00 AM Electronics Music Retro Permalink Comments 0 Email This Digg this Recent Entries Back to the earth in Maymand Village Custom PCB Prototyping using a Laser Cutter Transportable Gliding Simulator Mercury beating heart demo video Apartment-sized vertical herb garden Call for applications : A2 MechShop Artist-In-Residence program Flat-pack bike scooter myPod looks like a neat pad CupCake CNC build , part 8 : Building the X stage Maker birthday : Douglas Engelbart Leave a comment Name Email Address Title Comments Subscribe to MAKE Magazine Subscribe today , save 42 and get web access to MAKE free . MAKE Digital Edition is available only to . subscribers 34.95 1 year 4 Quarterly Issues Subscribe

  • In the Maker Shed: LED Lightbrick kit

    Updated: 2010-01-28 09:30:00
    : : : Make Technology on Your Time RSS Blog MAKE Magazine Videos Podcasts Projects Forum Community Maker Shed Store Shapeways interviews Bre Pettis Main Clever arm for iRobot Create In the Maker Shed : LED Lightbrick kit The LED Lightbrick kit includes all the components needed to make your own version of the project that was featured in MAKE , Volume 18 Once assembled , the circuit board is ready to be cast into a finished interactive nightlight . Casting and mold-making materials not supplied with kit Posted by Maker Shed Jan 28, 2010 01:30 AM Kits Maker Shed Store Permalink Comments 0 Email This Digg this Recent Entries Back to the earth in Maymand Village Custom PCB Prototyping using a Laser Cutter Transportable Gliding Simulator Mercury beating heart demo video Apartment-sized vertical herb garden Call for applications : A2 MechShop Artist-In-Residence program Flat-pack bike scooter myPod looks like a neat pad CupCake CNC build , part 8 : Building the X stage Maker birthday : Douglas Engelbart Leave a comment Name Email Address Title Comments Subscribe to MAKE Magazine Subscribe today , save 42 and get web access to MAKE free . MAKE Digital Edition is available only to .

  • Build a better RepRap: $80,000 Prize

    Updated: 2010-01-27 15:00:00
    : : : RepRap : Blog Blog for the RepRap project at www.reprap.org a project to create an open-source self-copying 3D . printer Wednesday , January 27, 2010 Build a better RepRap : 80,000 Prize The Foresight Institute has announced its Kartik M . Gada Humanitarian Innovation Prize to design and build a better RepRap There is an interim prize of 20,000, and a grand prize of 80,000. They consulted with the core RepRap team before the announcement and we were initially concerned that the prizes might drive developers to secrecy in order to give themselves a competitive edge . As you will see they have addressed those concerns by making it a condition of winning the prize that solutions should be pre-published and made available under a free licence . For ourselves and on your behalf , we would like to thank the Institute for the enthusiasm that these prizes demonstrate for the RepRap project and for their magnificent generosity . Reprappers : to your designs To your experiments posted by Adrian Bowyer 3:00 PM Comments : Congratulations . This could really raise the profile of the . project posted by Sam January 27, 2010 3:37 PM Huh . . Cool posted by bbot January 27, 2010 5:07 PM Now

  • Upcoming server outage

    Updated: 2010-01-27 04:13:00
    We are pleased to announce that RepRap.org will have a brief server outage at 8:00 PM on Wed, 27 Jan 2010 Pacific Standard Time. This will last no more than an hour, and ideally will only take 15 minutes.This will be at 04:00 Thu, 28 Jan 2010 UTC.(We're moving servers.)Regards,Sebastien BailardRepRap.org

  • Learn CW Online – LCWO.NET

    Updated: 2010-01-26 06:07:37
    I’ve been working with this on-line website to brush up and improve my rather limited CW skills. Works equally well on my Windows or Apple machines, and with the lesson tracking it becomes sort of a self-challenging exercise that is fun to the point of being addictive! The Web URL is: http://lcwo.net/ From the LCWO.NET Website: A [...]

  • New Software - May Contain Nuts...

    Updated: 2010-01-24 20:43:00
    : : . RepRap : Blog Blog for the RepRap project at www.reprap.org a project to create an open-source self-copying 3D . printer Sunday , January 24, 2010 New Software May Contain Nuts . but . fewer I've been a bit quiet for a while , owing to the fact that my pathetic brain can either communicate or work , but not both . About six weeks ago , I decided that the Java host software had not been looked at seriously for a long while , what with all the Mendel hardware developments that had been going on . So I decided to take it apart , put it back together again , then throw all the funny-shaped bits that were left over in the . bin Ages ago Forrest started to develop his pixel-based STL slicing software where the pixels are at the RepRap machine's resolution about 0.1mm I thought that this was All Wrong because it was going to be inefficient in memory use , and would not scale well . But I did think that a very similar scheme that used a quad tree to represent slices might be a good . idea Just before Christmas , I realised that it is very easy to do unions and intersections on quad trees recursively something I should have known . so I implemented . it But , though it worked reliably

  • E Series: Why Resistors come only in certain values?

    Updated: 2010-01-20 11:48:00
    close : username : password remember me : new account forgot password Featured Product : Stribe1 Lighted Touch Strip log in nbsp guides nbsp nbsp forums nbsp nbsp blog nbsp nbsp kits nbsp nbsp inventors nbsp nbsp projects nbsp nbsp store nbsp nbsp cart nbsp Javascript Tree Menu A tree for site navigation will open here if you enable JavaScript in your browser . Curious Inventor HowTo Guides , Tools , Parts and Kits for DIY'ers Make your own . technology Most Popular Products : Colored Ribbon Cable 25 Conductors 4.99 Comes in 5ft segments . Peel off the number of conductors you need . Useful with IDC sockets and crimp pins to make connecting buses . Dry Tip Cleaner 10.99 A sponge replacement , these soft , metal coils are coated with flux and clean soldering iron tips without thermally shocking them like a wet sponge does . This helps to prolong ti . Chip Quik® Surface Mount Desoldering Kit 13.99 This kit contains everything needed to desolder multi-pin surface mount chips . It's basically a low melting point alloy that , when mixed with the existing solder on a joint . Flux Alcohol Bottle 3.99 A fine tipped needle helps to distribute flux only where it's needed . Not only does

  • Electronic Circuit in Panduit Labelmaker Cartridge

    Updated: 2010-01-19 03:15:09
    I don’t remember exactly where at work I found this empty labelmaker cartridge, but this view isn’t what caught my attention. Here’s what piqued my interest — a tiny PC board inside the cartridge. I’m aware of inkjet printer manufacturers adding PC boards to their ink cartridges and then perverting the intent of the Digital Millennium Copyright [...]

  • Blu-ray Theft-Prevention Case and Hard Drive Magnets

    Updated: 2010-01-19 03:01:36
    I don’t have a Blu-ray player yet, but I’m doing the same thing I did when I switched from VHS to DVD — buying in the new media when I think prices are reasonable, then buying a player after I have enough media to justify it. Here’s one of my first such purchases, with the cover [...]

  • Hamcrams, Hamshacks and Guests

    Updated: 2010-01-19 02:34:26
    Have been working on materials for the February 6th Mancorad W9DK Hamcram and VE session at Lakeshore Technical College.  Very excited personally to get the W9DK Mancorad Hamcram program fired back up.  Currently have a VE assistance request out for Extra Class VEs to help with upgrade testing, as a number of people have asked [...]

  • A printable, high speed alternative to belts?

    Updated: 2010-01-15 05:46:00
    : : , RepRap : Blog Blog for the RepRap project at www.reprap.org a project to create an open-source self-copying 3D . printer Friday , January 15, 2010 A printable , high speed alternative to belts Herringbone racks and pinions might well be a practical , printable alternative to belts for high speed , NEMA stepper driven Reprap . machines Would you like to read more posted by Forrest Higgs 5:46 AM Comments : This post has been removed by the . author posted by dissidence January 15, 2010 4:13 PM i saw those advertised in store once . from what i remember some of the things they said about them , are that they make less noise , they do not slide off the pulley , and are supposed to have a longer life . i just don't see them being easier to make the belts , and i have not seen a reprap make much for a belt yet , though i am keeping my hopes up for . that posted by dissidence January 15, 2010 4:23 PM Looks great , you'll run into the whole chicken and egg problem though of not being able to print something bigger than an axis travel unless you print the rack on an . angle The biggest problem with using a rack and pinion for precision movement will be backlash . Mendel gets away with

  • Winter 2010 “HamCram” Licensing Class at LTC – Feb 6th

    Updated: 2010-01-10 20:40:36
    MANCORAD W9DK Winter 2010 “HamCram” Licensing Class at LTC February 6th, 2010 8 am to 4 pm Join a fellow group of highly motivated Amateur Radio Candidates for Winter 2010 Manitowoc County Radio Club – MANCORAD’s “HamCram” Class HamCram is a specially designed single day session that teaches everything needed to become an FCC Licensed Radio Amateur, with official [...]

  • Another Nixie Clock Project – ArduiNIX

    Updated: 2010-01-09 06:37:05
    ArduiNIX Demonstration from Flock of Butterflies The last circuit boards have arrived and I am again experimenting with Nixie Tubes and Clock Making. This project uses an Arduino “Arduino Shield” and Display Board from ArduiNIX with the small IN-17 tubes providing the display. http://www.arduinix.com/ Flock of Butterflies has a great series of articles on the ArduiNIX: http://flockofbutterflies.blogspot.com/2009/10/arduinix-part-1.html http://flockofbutterflies.blogspot.com/2009/10/arduinix-part-2-building-kit.html http://flockofbutterflies.blogspot.com/2009/11/arduinix-part-3-high-voltage-power.html http://flockofbutterflies.blogspot.com/2009/11/arduinix-part-4-multiplexing.html The ArduiNIX also has [...]

  • A Neat Idea – Altoid Tin Sized Prototyping Circuit Board

    Updated: 2010-01-07 09:54:11
    Rex Harper W1REX at QRPme.com has added a LOT of new products over the last year, and one that has really caught my eye is a neat Prototyping Board sized to fit an Altoid Mint Tin and using a solder-to-pad layout he calls “Limerick-Style.” “The BLOCK_TOIDS prototyping board is the newest board design in the Limerick [...]

  • “New” Crumar T2 Organ Part 2: Easy Fixes and Investigation

    Updated: 2010-01-05 00:26:55
    As mentioned previously, I recently bought a Crumar T2 organ manufactured in 1978 and started ascertaining its condition. Here’s what I’ve been able to fix so far and what I’ve been able to determine about the parts I haven’t yet fixed. Crackly Volume Knobs and Stuck Master Tuning Potentiometer Several of the volume knobs were pretty [...]

  • Some of the Things a Person Does Around the Radio Hobby

    Updated: 2010-01-04 22:46:51
    I had an email setting me to thinking about all the things I do outside and “around” amateur radio. For the vast majority of us, Ham Radio is one of many interests. Certainly it is the sum of all the things we do that makes us our own style of individual? For the year [...]

  • Reconing an Eminence JAY7010 Subwoofer Driver

    Updated: 2010-01-04 05:27:44
    Earlier this year I bought some PA speakers at auction. The auction company was cagey enough to list them all as “untested / condition unknown,” but I suspect they had a pretty good idea of the condition. I ended up with a Yamaha SW1181VS 18″ 500W subwoofer, a Yamaha Yamaha CW218V dual 18″ 1220W subwoofer, [...]

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