Wiring

[harry hills]

scorpion xl is a dual motor controler, so you only need 1

[terry]

Ring terminal.
Sounds a bit rude

[roketrhino900]

Thanks for answering all my stupid questions, I wanted at least 3, preferably 4 channel ESC, are there any out there suitable for feather weights, because I can't find any on Robot Marketplace, RobotPower and such. Will I have to use two ESC's, (I've heard of this being done) ,if so is there a diagram of how to do so?

[Max]

Why do you want a 4 channel esc? Are the other 2 for a weapon?

[roketrhino900]

Channel 3 was for a flipper, I'm planning on getting one I can start with around 8 bar pressure and maybe higher,
channel 4 preferably, incase it ends up being invertible and need controls switched round, or srimech if the flipper cant self right the 'bot.
The flipper probs wont self right, since I'm planning a funny shape for it, hence channel 4.

BTW, its a featherweight, 'cos 8 bar on a heavyweight would be ridiculous!

[jonny]

BTW, its a featherweight, 'cos 8 bar on a heavyweight would be ridiculous!

no it wouldn't, plenty of heavyweights run low pressure set ups. just use a 2 channel for the drive and a battleswitch for the flipper.

[Max]

You don't want a speed controller for a flipper,you will want a battle switch relay from robochallenge for it, it just plugs into your reciever. If joiners a srmech the maybe you will need another single channel speed controller or a larger relay

[roketrhino900]

OK, I feel much better about 8 bar now! I just did some quick research on battleswitches, am I right to say that they are basically a one-channel speed controller?

[RogueTwoRobots]

There are no speed controllers (to my knowledge) that accommodate anything more than two channels. Mainly because any RC vehicle requiring speed control never usually needs more than two motive sources to make it move.

Looking at your intended setup, this would be the most common arrangement:

Ch.1 & Ch.2 - Drive. Either through two individual speed controllers (possibly linked by a mixer to give joystick-style control) or by a dual motor controller.
Ch.3 - Flipper. You would want a switch of some kind to control a solenoid (electric coil) which activates the valve and allows the flow of gas.
Ch.4 - Srimech/flip switch. A srimech that is not part of the flipper would probably take the form of a motor or linear actuator. In this case, another ESC would most likely be used. I can't remember the exact specifics of setting up a flip-switch (not too difficult though) but again, this would most likely require a switch of some kind.

The flipper probs wont self right, since I'm planning a funny shape for it, hence channel 4.

Flippers can take up a lot of weight at the best of times, so having to incorporate some form of self-righting mechanism into your robot alongside the flipper would take up valuable weight. Since your robot isn't built yet, I'd advise that you don't design such weaknesses into your robot. Alter the shape slighty so that the flipper will self-right the robot.
The first Drumroll had small wheels that didn't stick out the top. I knew this in the design stage but pressed ahead with the build anyway as I figured I could just stick some roll-hoops on it. But the roll hoops didn't do their job on several occasions which cost me the chance of a win. If I'd spent just ten minutes revising the design before construction began, the robot would have been invertible and it would have been able to avoid the problems of not self-righting in the middle of a fight.

EDIT: Jonny and Max beat me to it!

[roketrhino900]

Thanks for your really thurough input, I feel now the flipper should still achieve enough force to self right the robot, I've included an image so you know what I'm going on about.



You said I would need 2 ESC's, would they be connected to each other at all, or would they only share the receiver?

EDIT: The pic looks confusing, black is the flipper, red is mechanic and yellow is armoury stuff. My idea was to have pipes leading from the safety holes in the piston leading out like an exhaust, which would be cool looking when the Co2 was released, but another question relating to that, in robot combat you can see the Co2 when the flippers go, but I thought you couldn't see it? (Co2)