jsolarski 94 Posted December 8, 2010 Share Posted December 8, 2010 I finished a simple motor driver using a 22n50 n channel fet, first test went well lol only thing i changed from the diagram is i used 100K resistor for the pull down link to my schematic http://justinstech.org/wp-content/uploads/2010/12/DSCN05511.jpg [attachment=0]motor_driver_22n50.jpg[/attachment] Quote Link to post Share on other sites
simpleavr 399 Posted December 8, 2010 Share Posted December 8, 2010 great work. i did got to see your schematic / photo though, took too long to load. u should reduce it to lower-res so that more people could enjoy are u driving the motor as a switch or for speed? is pwm involved here? thanks. Quote Link to post Share on other sites
bluehash 1,581 Posted December 8, 2010 Share Posted December 8, 2010 Thanks for sharing jsolarski. Saw this yesterday over twitter. How are you planning to control this? PS - I uploaded the schematic in a smaller size. Simpleavr, what do you use to draw this? Quote Link to post Share on other sites
jsolarski 94 Posted December 8, 2010 Author Share Posted December 8, 2010 Thanks Bluehash for reducing the size!! i usually forget to resize them since wordpress made me lazy lol bit i will try next time the video shows it as being used to switch, when i put the other driver on i will be testing it with pwm. and that drawing looks like its from frtzing, i think that's what its called Quote Link to post Share on other sites
bluehash 1,581 Posted December 8, 2010 Share Posted December 8, 2010 that drawing looks like its from frtzing, i think that's what its called Ah! yes.. thanks. Quote Link to post Share on other sites
jsolarski 94 Posted December 8, 2010 Author Share Posted December 8, 2010 just a quick shot of the board before i add the second driver and the heat sink displayed next to it full size image herehttp://justinstech.org/wp-content/uploads/2010/12/DSCN0556.jpg Quote Link to post Share on other sites
GeekDoc 226 Posted December 8, 2010 Share Posted December 8, 2010 Justin, you really need a work surface that's not covered with stuff so you don't have to do this stuff on the carpet (saw your work area photos). I can tell you from experience, bending over projects on the floor is terrible for the back! Carpet + movement == static. Static + chips == bad! And yet, you still come up with such cool stuff! Thanks for sharing! Quote Link to post Share on other sites
bluehash 1,581 Posted December 8, 2010 Share Posted December 8, 2010 bending over projects ?_? Quote Link to post Share on other sites
GeekDoc 226 Posted December 8, 2010 Share Posted December 8, 2010 bending over projects ?_? Ummm... Leaning over projects? Hunching over projects? Awww, hell with it! Just work on a table! Quote Link to post Share on other sites
simpleavr 399 Posted December 8, 2010 Share Posted December 8, 2010 Awww, hell with it! Just work on a table! i think the floor is the only open space he has. table probably already occupied by paper, clothes and half-finished food / packaging. if he's building a smaller heli, he might push stuff on his table aside and work there. but this heli is big. Quote Link to post Share on other sites
jsolarski 94 Posted December 9, 2010 Author Share Posted December 9, 2010 lol @GeekDoc the static in my apartment isn't bad, i keep a humidifier going pretty much all the time but yes i should be more careful lol as for a table lol i wish i had one, but i dont work on the floor, i work on my couch lol and i solder in my kitchen on the counter. Im working on getting a good workbench after the holidays. and the helicopter is fairly big, the blades are 2 ft diameter when running , and the body is about 1.5 ft long. Quote Link to post Share on other sites
GeekDoc 226 Posted December 9, 2010 Share Posted December 9, 2010 the helicopter is fairly big, the blades are 2 ft diameter when running , and the body is about 1.5 ft long. I've always wanted one of those! Expensive hobby, though. Quote Link to post Share on other sites
jsolarski 94 Posted December 9, 2010 Author Share Posted December 9, 2010 I've always wanted one of those! Expensive hobby, though. the real expense is in the transmitter and the receiver, the one that came with the helicopter retail for about $150+ but the helicopter itself is made to crash and be repaired fairly cheap or you can get one of these lol http://www.amazon.com/Syma-S107-Gyroscope-Controlled-Helicopter/dp/8499000606/ref=sr_1_2?ie=UTF8&qid=1291864591&sr=8-2 Quote Link to post Share on other sites
NatureTM 100 Posted December 9, 2010 Share Posted December 9, 2010 or you can get one of these lol http://www.amazon.com/Syma-S107-Gyroscope-Controlled-Helicopter/dp/8499000606/ref=sr_1_2?ie=UTF8&qid=1291864591&sr=8-2 Wow that's cheap! I might have to get one just to mess with. If it breaks It would be a good parts source anyway. I imagine the prop on the tail indicates it lacks cyclic pitch on the blades, so no roll control. I guess you'd always have to have it pointed in the direction you want to travel. Not too bad though. I'll put it on the "things to buy myself after Christmas" list. Quote Link to post Share on other sites
jsolarski 94 Posted December 10, 2010 Author Share Posted December 10, 2010 it lacks cyclic pitch on the blades, so no roll control. I guess you are correct in no pitch control, but it is 3 channel, so you have forward and back and rotate left and right and up and down. It is more control then lets say one of the airhogs micro heli, which is only 2 channel, up down and rotate. Quote Link to post Share on other sites
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