A quick update! Seems there are a lot of new things going on on the E-bike community: endless-sphere.com ! Adrian has done a friction drive (on tire drive, http://www.endless-sphere.com/forums/viewtopic.php?f=28&t=22187&p=322985#p322985) with nice documentation. It makes it kinda possible to have something running quickly! he also has the sketch for the design (attached to this mail, probably […]
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How to make a LED bracelet with small 3mm Yellow flat top LEDs and thin brass tubes

Following pictures show different steps of making an LED bracelet with small 3mm yellow LEDs and pieces of brass tube. Hover your mouse on top of each of the pictures to see details about
READ MORE »Cheaply convert a normal bike to an Ebike
Hi, After working with the powerful and efficient BLDC motors now I am starting to think about using them as an engine for my bike. I live somewhere uphill where I have to pedal about 1 KM on a 15 Degree steep road to get back home. This is the sole reason behind me not […]
READ MORE »Building a Quadrotor : Useful links
Working With Hobby King 2.4Ghz 6Ch Tx & Rx http://blogs.hari.us/archives/2009/11/entry_6.html http://shrediquette.blogspot.com/ mit’s autonomous quadrotor with bmp mapping : http://technabob.com/blog/2009/10/16/quad-rotor-autonomous-helicopter/ http://news.cnet.com/8301-13639_3-10389576-42.html all about multicopters: http://www.rcgroups.com/forums/showthread.php?t=1097355 http://iarc.angel-strike.com/ IMU http://www.chrobotics.com/CHR6d.php
READ MORE »“Building a Quadrotor – Frame design”

******************************* http://carancho.com/AeroQuad/forum/index.php?topic=160.msg1479#msg1479 I agree too, looks very nice. When I was about to make mine HobbyKing didn’t had any Woven carbon Fibers left in stock, so I ended up using Plexiglass which is heavier and less strong for my quad. I would like to point something out here about HobyKing carbon fiber square cubes. They […]
READ MORE »Building a Quadrotor – Propeller selection
No you can’t. There are no pusher propellers (counter rotating propellers) which you can match with these on HobbyKing. You need similar clockwise and counter clockwise rotating props. There is EPP1045 which is not as good as APC 1047 but a bit cheaper (reported to break or bend during flights) On HobbyKing there are these […]
READ MORE »Building a quadrotor – using Wii MotionPlus as gyro
Hi, Due to some recent posts about using Wii motion plus sensors ( http://wiibrew.org/wiki/Wiimote/Extension_Controllers ) I got enough motivation to buy one from DealExtreme for 15.03$. I received them some days ago. Opened them and noticed it is not using the IDG600 (X&Y) and Epson (Z) gyros anymore, but it uses IDG650 (X&Y) and ISZ650 (Z). […]
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