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Biquad Antenna Construction. Biquad Antenna Construction (first published September 2002) This page details the construction of a biquad antenna. The biquad antenna is easy to build, and provides a reliable 11dBi gain, with a fairly wide beamwidth. Background completed biquad antenna I've done quite a bit of experimentation and testing with various home made dipoles for 24dBi Conifer dishes, and have managed to increase the performance of the dish.

Trevor Marshall has a webpage with information about using a biquad as a feed on a Primestar satellite dish, with very good results. Note that the photos on Trevor Marshall's webpage do not clearly show the construction of the biquad - particularly the way in which the quad is attached to the coax. Use the photos of my biquad below, and refer to the websites listed in the references section at the bottom of this page for more information on the correct construction of the biquad. Parts Required Reflector Cut a square piece of blank printed circuit board, 123x123mm. 90 degree bend. RepRapWiki. TEDxEWB Talk: Adrian Bowyer at Imperial College, London, introduces RepRap RepRap is humanity's first general-purpose self-replicating manufacturing machine. RepRap takes the form of a free desktop 3D printer capable of printing plastic objects.

Since many parts of RepRap are made from plastic and RepRap prints those parts, RepRap self-replicates by making a kit of itself - a kit that anyone can assemble given time and materials. It also means that - if you've got a RepRap - you can print lots of useful stuff, and you can print another RepRap for a friend... RepRap is about making self-replicating machines, and making them freely available for the benefit of everyone. We are using 3D printing to do this, but if you have other technologies that can copy themselves and that can be made freely available to all, then this is the place for you too. Reprap.org is a community project, which means you are welcome to edit most pages on this site, or better yet, create new pages of your own. ATOMS-EXPRESS | We help kids make things that do things. As you may have heard, or might have guessed, things at Seamless Toy Company have been a little rocky these past few months.

Last year was a high speed blur as we developed and ramped production on 20 different ATOMS and ATOMS Sets simultaneously to ship in time for the holidays. Since mid-January, we’ve been catching up on the details and fallout of moving at that pace – typical “startup” growing pains, but it has also driven us to re-evaluate (or at least re-clarify) what we are trying to accomplish here. When I started outlining the ideas that lead to ATOMS about 10 years ago, I had just recently finished my MS at MIT in supporting “grassroots inventors”, and I was working at Apple.

I was in my mid-20’s, and I had spent pretty much my entire adult life surrounded by people who were unusually capable at building complicated things (like space robots and iPods). Fast-forward to 2013… the “maker” movement is mainstream. DIY nirvana for everyone right? Michael Rosenblatt Founder & CEO.

Welcome - Welcome! Welcome to Spritesmods. At this site, I'll document my more interesting hacks for your viewing pleasure. While it's not updated that regularly, I try to add an article about every month. Ow, by the way: all the pictures are thumbnails. You can click on them to get the originals, straight from my camera. If you want to comment on an article, there's a discussion area at the last page of every one of 'em. You can follow Spritesmods on Twitter too if you want to know about the projects I'm working on, that may or may not eventually make it to the site.

RSS feed Last added projects: Dec 29 2013: WS2812 LEDs controlled by an iMX233Dec 23 2013: 3d Jello printerAug 1 2013: Hard disk hackingApr 24 2013: Solari ledboard controller This website is completely Web1.06b compliant. Last 10 comments Show all. PJRC: Electronic Projects with Components Available Worldwide. Australian Robotics. MitchTech.