No Toy Robotics

[adz600]

Wiring up my weapon control, technobots twin relay got it set too oposite controls, ie ex open inlet closed
using my rudder stick but it seems slow and when link is in the exhaust opens with or without bec on, this is safe but is it correct
anyone post pics of there fire control designs

[blazerbotics]

Send a negative feed to one side of each of your coils on the valves. Feed a positive to the two commom terminals on the switcher, the a wire from the NO terminal on one side to the fire valve and the other NO terminal to the valve on the other side. That way you use the stick one way it will fire, the other way will exhaust, middle will hold the arm where it is.

[adz600]

Thanks for reply all sorted and tested, full pressure gas test tomorrow
20131209_192011.jpg

[adz600]

http://m.youtube.com/index?&desktop_uri=%2F

quick link to ceros flipper test, only low pressure was tested on a regulator due to no armour or bungee system enjoy

[plargen]

link doesn't work but manage to find it, what pressure were you testing it at

http://www.youtube.com/watch?v=l3vKIkMisoI

[adz600]

Not sure at a guess around 5-8 bar no gauge on the reg but was only cracked open,high power acl valves worked well,will test again with gauges etc after christmas

[mightymouse]

Was nearer 5-8psi than bar. the regulator was turned only until gas flowed - Expensive welding reg not one of my specials lol

Trevor

[Mouldy]

Looks pretty cool mate

[adz600]

thanks for replys, looking at no toy soon what mod gears tend to be used for a speed 900 drive gear reduction
looking at about 4;1 gear reduction and 100mm wheels

So speed 900 drive
Speed 900 twin axe motors
22.2v lipo

will be fun, same problem as always weight

[Ellis]

If you mean the well known Graupner Speed 900s at 6s, 4:1 and 100mm wheels, you're looking at a theoretical top speed of almost 40mph. I'd gear down a lot more. In most arenas you'll never really see more than 15mph, 20mph from one end of the heavy arenas to the other, perhaps.

If these are slower revving motors, say 4000rpm @12v or something, you're still looking at nearly 25mph at 6s.

[Mouldy]

I'd go 9:1 with MOD 1

[maddox10]

Biggest gearratio you can get in 1 stage on a speed 900 is Z10 mod 1 on the motor and the wheelsize gives you the maximum size of gear.
A Z50 is 52mm external diameter. Giving you a minimum wheel diameter of 55mm.
Chaging to a Z100 and a 110mm wheel won't change speed.
But to give you an idea. Kashei uses 6S and a 6-1 gearratio to a 90mm wheel. It's bloody fast, and uses amps like no tomorrow. We needed to put in a Sidewinder, no other small controler like the Scorpion XXl Ilyama version or the IBC could do anything with it. ( 31km/h is idioticaly fast)
The TZ85's will handle it, but those , in our opinion, lack the fine control the dedicated twin motor controlers give.

[MikeNCR]

Biggest gearratio you can get in 1 stage on a speed 900 is Z10 mod 1 on the motor and the wheelsize gives you the maximum size of gear.
A Z50 is 52mm external diameter. Giving you a minimum wheel diameter of 55mm.
Chaging to a Z100 and a 110mm wheel won't change speed.
But to give you an idea. Kashei uses 6S and a 6-1 gearratio to a 90mm wheel. It's bloody fast, and uses amps like no tomorrow. We needed to put in a Sidewinder, no other small controler like the Scorpion XXl Ilyama version or the IBC could do anything with it. ( 31km/h is idioticaly fast)
The TZ85's will handle it, but those , in our opinion, lack the fine control the dedicated twin motor controlers give.

Might be worth giving these a look- http://e0designs.com/products/ragebridge/

I'm using one to drive a feather with two 18v Dewalts on a 6s Lipo. I've been very happy with the performance and control. The adjustable current limiting is a really handy feature.

[maddox10]

The Ragebridge looks ok, but we have the Sidewinder in our supply, so for weight or dimensions we don't have to change.
Also, we don't need all that power in Kashei, but the 6S battery is mandated by the axe. Otherwise we could be happy with a 3S 2200mAh.

[adz600]

thanks for replys here is a link to the motors already have 2, botbitz85 are ready to be hacked. can only use the 900s on single reduction due to weight and size issues could use a voltage step down if required.