new2it
Quarry Creeper
I'm thinking of setting up four wheel steer. Do I need two BECs, one for each servo or can I wire them both up to one BEC? Thx.
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StomperCrawler
RCC Addict
Depends on bec amperage and servo current draw.
Exocaged
Rock Crawler
I run a single 10A CC BEC for all my 4WS vehicles. One of them has Savox 1231 servos at both ends on 2.2's. Savox's are known for being hungry and I've not had an issue yet.
new2it
Quarry Creeper
Thanks. I have two Hitec 7954s. Glad to know I can run them on a single BEC. Was thinking I needed a CC BEC Pro but it sounds like I can get away with the regular one.
JokersWild
RCC Addict
I'm not a fan of the pro for my reasons, but on my c3 rig I feed each servo with its own bec.... Simple fact if a bec fails it only effects one servo not the whole mix...... I comp my rigs so this is why. May hold up with one on two servos I just prefer it this way as to less failures and easier fixes.
winnerone23
I wanna be Dave
I'm with Joker.. I ran 2 bec's and each had it's own bypass. That way, if one failed (which happened) I could plug the front steering into the rear steer bec and keep going.
new2it
Quarry Creeper
Sounds like I should run two to be safe and have a back up. Thx for the help. Now a wiring question. Do I need two open slots in the receiver or do I wire the two BECs together and use one slot? I'll try googling and see if I can fnd a diagram.
Winnerone23 - did you make the bypass or can you buy one?
Winnerone23 - did you make the bypass or can you buy one?
JokersWild
RCC Addict
We have all made them and bought them from holmes.......
Each spot in rx is for each channel..... You are only using the control wire from rx.
You can but cannot run two servos from same channel..... I'll let someone else explain
Ours are ran each servo to two different channels.my rigs run 6 ch rx.
Highmark
I wanna be Dave
Agreed, I always run one BEC per servo.
new2it
Quarry Creeper
I'm such a noob with this. I was thinking I would wire it so that both front and rear turned at the same time (in opposite directions) when I turned the wheel on the radio. I only have a 4ch radio. Sounds like I need to do some more research.
JokersWild
RCC Addict
You can do with 4 ch...
Throttle, front steer, rear steer and winch.
Problem is lack to use each axle independently they way you discribed and also it will crab walk only..... You can get it to 4 wheel steer that way but you have to reverse one servo. Running independsnt is much easier to drive.
Throttle, front steer, rear steer and winch.
Problem is lack to use each axle independently they way you discribed and also it will crab walk only..... You can get it to 4 wheel steer that way but you have to reverse one servo. Running independsnt is much easier to drive.
Highmark
I wanna be Dave
It's pretty easy, you just have to do a little research and tinkering.
For the bypass you buy one of these:
Holmes Hobbies LLC
Yellow and black wires go to the reciever
Red and black wires go to the BEC
The end with the yellow red and black wires goes to the servo
The BEC has two power wires that go to the battery.
Your radio question depends on the radio and receiver. "thumbsup"
heyok
I wanna be Dave
Just a few ideas for you guys. I realize it isn't for everyone...
Here's an easy way to add a BEC for your steering servo. This is great if you are someone that doesn't like to solder:
http://www.rccrawler.com/forum/vendors-electronics/290652-no-brainer-bec.html
If you decide to use one BEC to feed your servos, I can make a version for you like this one:
To make 4WS easy:
http://www.rccrawler.com/forum/vend...-4-wheel-steering-controller.html#post3931858
Here's an easy way to add a BEC for your steering servo. This is great if you are someone that doesn't like to solder:
http://www.rccrawler.com/forum/vendors-electronics/290652-no-brainer-bec.html
If you decide to use one BEC to feed your servos, I can make a version for you like this one:
To make 4WS easy:
http://www.rccrawler.com/forum/vend...-4-wheel-steering-controller.html#post3931858
JokersWild
RCC Addict
^^^ this too..... I always forget al builds all these off the wall doo dads. Lmao
fish-hunter
Quarry Creeper
Is it possible to build two bec's in one package. My only problem is where to put two bec's. I I could get it in one small package that would be awsome.
heyok
I wanna be Dave
I have done this for a couple of customers. It does however make the BEC twice as thick.
fish-hunter
Quarry Creeper
Is there a way to shrink it up some.maybe going to a pair of 5 amp bec's rather than ten amp ones. Just trying to get it as small as possible.
heyok
I wanna be Dave
The castle BEC is about 1/2 the size of the one I carry. Does that help you?
JokersWild
RCC Addict
Not that its much of a size changer, but I smashed mine together...... Then seperated them later on...... Both of mine are chillin on the boat sides of the c3. Just rip the coating off of em and pasti dip em then stuff em under the seats..... Lol. Come on mike you can find a spot
I wouldn't go to 5 amp......
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