Yep I would most definitely get some form of helicopter effect giving a large ground clearance. as you can see from my early HW designs im using bracketed plates to cover the ground clearance. I will include these details in more advanced CAD drawings later. I would need to get all the internal components before I can settle on final design because of clearance issues and component placement.
oh yes i forgot about that ...... i also was thinking whether a 2 stage wedge would flip other robots better eg a shallow to steep angle, as ive seen most robots just glide over the top of most wedge designs or get end up on top
i did a 2 stage scoop/wedge on my 4wd and when i drove it at full speed into scruffy in testing it rolled it over
That's a good idea, Loading up CAD as I type this. Thanks!
Like that?
yeh but i think it might need to be a bit steeper, it is probably a case of trial and error the get the angle right tho
After a very long and useful conversation with Mario (maddox) and Ellis I believe I have decided on a drive system to use in my robot. The melty brain design will use these brushless motors: http://www.hobbyking.com/hobbyking/s...0KV_2665W.html
On a 1:4 gear ratio to banebots 98mm wheels
The ESC's will be http://www.hobbyking.com/hobbyking/s...Truck_ESC.html
To handle the breaking load.
I will use a 4s lipo for the power. Yet to be decided.
Giving a top speed of 25km/hr! Sounds a bit too fast to me but I guess it is a melty brain style robot doesn't get too much stress so could be fine, I would gear it down a bit more though to give a lower top speed but that's just my opinion, I'd trust mario
oh and im going to mount the motors the other way round so the weight is on the outside and the wheels are closer together giving a higher spin speed.
Sorry to hijack your thread, but...
I have been designing my next FW for a year or so now, and I have decided to go down the Hardox brick road (sorry big spinner guys). I originally designed it to run off S900, but they have recently been discontinued, I then set out designing a brushless drive system. I later spoke to someone at the UK champs (sorry, can't remember your name) about brushless drives. If I remember correctly, he said that brushless motors don't like switching between forward and reverse too often. He said that he had tried and tested it, and it didn't work.
I don't mean to discourage you from brushless drive, but from what I can see, they seem to have some major reliability issues. Can any one else confirm/deny this???
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