Good luck finding any, though. Every place I’ve checked is out of stock.
Seriously: How’s the range on control and downlink? Is it the sort of thing that you can drive far enough that you run out of places to explore, or do you find that you’re struggling to either control it accurately or see what it sees before you’ve sent it into all of the nooks and crannies to be seen? If you run out of range, maybe some sort of enhancement to allow you to go farther would be in order.
Play around with it, and decide what aspects give you trouble the most. Maybe it has issues with certain types of terrain. Maybe battery life isn’t what it could be. Maybe a zoom function would be nice, so that you could check things out from afar, without having to drive right up to them in order to see details.
that could easily be accomplished with door hinges connected the seperate frames and a pully with a belt and sprocket to pull the doors open. AWSOME IDEA AND SO SIMPLE TO INCORPORATE!
these are ideas I am trying to make work. Especially the transmitting. Its only operation up to 100ft and looses some controll at about 70 ft. Also, battery power isnt bad, zooming in would be nice as well as steering better on carpet and cement.
Ive been looking into wifi for controlling the newer bot (which will be aluminum hopefully, cant stand lexan any more), but unfortuantely cant find anything I can incorporate with the present LM electronics as well as something that dosent need to be programmed
do you like that speed? are you satisfied? and, where did you buy the cameras? your lucky to have a bit of money, I will try working this summer but I think most of my money is going to go in the 5990 servos (114$ each, goes up fast…), maybe I could find a bit of money somewhere to buy some planetary motors and sabertooth to build a rover.
Sam
because id I buy planetary motors, I will buy the 65 RPM one, wich will come to about 60 feet per second, wich is almost half of what you have, but I will a lot of power.
The camera’s are 1.2 and 2.4 GHZ cameras from superdroidrobots.com. They are wirelessly fed to a reciever connected to a TV or small LCD screen. I am very satisfied with the speed and torque of the motors, and they are very quiet which gives the rover stealth. 8)
In a planetary box, a brushless will walk all over any brushed setup. In power, efficiency and weight.
And large Outrunners have gobs of torque. I have an Axi 5330/18 outrunner spinning a 21" prop, 8mm shaft, 10mm prop adapter, on my 7 foot 1/4 scale Aerobatic plane. This motor has some serious torque. Like, break your wrist torque. 38 Volts with 120 Amp peaks on a 16,000 mAh lipo.
The Mega 16/15/X series comes in many different kv (rotations per volt) and has more than twice the power of brushed 400 sized motor plus way better efficiency. Which means longer battery life and more power/speed from the same sized motor. This 400-sized motor will outperform a can 600 brushed motor by far. I replaced a modified 680 sized brushed motor in my BT Corona Helicopter with a Mega 16/15/3 (400 sized). The heli now weights less, has much more power and extended my flight times by 15%.
Did I mention that brushless in-runners don’t cause RF interference like brushed motors do? And that they are much quieter.
The downfall is the price to use brushless and brushless esc’s. But hey do range from tiny to huge (4" in diameter) and high kV (RPM) to very low kV, high torque outrunners. There is a reason why industrial equipment has been using 3 -phase motors for years, and still do. They just kick everything else’s butt.
im not sure why we dont use them than? Besides 100$$ a pop is too expensive… even for me When I begin the Spy3 this summer if I decide to make is bigger or smaller Im looking into like 10mph motors for like a 10-15lb bot with 6mm shafts that arent too expensive. Maybe I’ll go with drill motors…
I’ve seen lots of posts about outrunners, and brushless motors for use in robotics. All of the speed controllers I have seen for outrunner motors are only one direction.
Furthermore even the brushed motors used for airplanes (although extremely powerful) are usually timed for optimum effeciency in one direction and can’t be used effectively for bidirectional applications.