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ctech4285's Discussions

H.264 video compression daughtercard/shield?

Started this discussion. Last reply by Tommy Larsen Jul 29, 2012. 1 Reply

Hello,so we have this guy who is working on a 40km…Continue

How about a auto recharge landing platform for copters?

Started this discussion. Last reply by Crispin Jan 3, 2012. 18 Replies

so i been toying with this ideabuck charge controller board in the quadsimple contacts on landing gear to make contact with the platformlanding pad with contactsmaybe 19V supply (notebook ac…Continue

Flight efficancy a different perspective

Started this discussion. Last reply by ctech4285 Jul 20, 2011. 1 Reply

lets consider that the wing of a plane uses the same mechanism to generate thrust then a propeller or rocket engine, that is accelerate a mass to cause a force in the opposite direction. and lets…Continue


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Ctech4285's Blog

EPM Cargo Gripper V2 Setup Instructions, Auto Mission and manual RC....

Posted on February 28, 2014 at 3:30pm 3 Comments


Hello all,

I just finished up the instructions let me know what you guy think!

click this link if you don't like the formatting :)



Anouncting EPM V2 Electro Permanent Magnet and OGCAN CAN BUS daughter card!

Posted on February 13, 2014 at 12:00pm 20 Comments

We are announcing Version 2 of the EPM, Electro Permanent Magnet and the OpenGrab CAN daughterboard (OGCAN). A simple solution for cargo gripping for UAV’s and robots.

Introduction EPM V2…


Production run PCB's part two: Etching/reverse plating

Posted on January 17, 2014 at 4:30pm 0 Comments


So last time I went over how we mask PCB's now I am going to show how we etch the boards in 3 minutes flat. Traces down down to 8mil, 1 out of 50 boards might fail.

Here we have part two, let me know what you think!…


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