i am 99% certain i am going to but the v2 4wd rover it was that or the wild thumper 6wd , i prefer the lynxmotion rover because of the amount of space it has for mounting anything you like on it.
my problem is battery power here in the uk 12v nimh battery packs are very expensive (in my opinion) but 7.2v packs are 3rd of the price of 12v so will the 4wd rover operate ok on a lower voltage (7.2v)
i will also be mounting a lynxmotion al5c arm on it.
There are lots of options. For example you could order the rover with different motors that run on 7.2v such as the GHM-03.
Also you could also do what I did with my rover and order 2 2800mah 6v batteries and wire them in series, to get you 12v.
If you wish to attach an Arm you will probably need 6vs as well. I have done this a couple of different ways. You could use some form of switching regulator. I have used some from Dimension Engineering as well as one from Basic Micro. Or you could do what I did earlier and put a third 6v battery inside the case…
yeah lower voltage motors would be the way to go but sadly active-robots.com who are the uk seller of lynxmotion only do the 12v version (or so they said in the email reply i got) i can by the motors extra but spending nearly £800 uk i would rather they came with the rover this is the only reason i am still considering the dagu 6wd wild thumper you can have any configuration you like.
will check out the 2x6v idea i have plenty of 7.2 battery packs from my rc car days would the motors take 14.4v 2x7.2 packs without burning the motors out on long runs speed is not an issue in fact i want it slow for tracking and learning it enviroment the arduino board and sensors.
ps i am already a linxmotion fan i have a brat and a scout
You can use two 7.2vdc batteries in series. Because the speed controller can be controlled accurately, it is possible to just limit the top end to 80 percent or something. Servos will require 6vdc though.
yeah i already have a 6v regualetd supply it was just the motors i was concerned about so just to clarify speed is no problem i want it to run at about walking pace anyway i was just worried that if i gave the motors 14.4v at prob about 50% speed for a prolonged period it wont fry the motors??
by the way just had email from active robots and the rover should be here tomorow
The voltage is only one part of the equation. If you provide 14.4vdc pulsed at 50% to the motor it’s the same as applying 7.2vdc steady. Because the on and off pulses come so fast, the motor averages them out.
