More steer for the AX10?

[2old4rc]

I can't seem to get enough steer out of my AX10. I plan on replacing the C-screws with some countersunk screws, like in CKRC's stage 2 mod, but currently, that won't make any difference, since my servo with the stock servo arm won't turn it even to the point where it hits the C-screws. Servo's a 5646MG, and I'm using an older Futaba transmitter without EPA. Is there something I can do with either the servo to have it turn 10 deg more, or is there something you can suggest that would give my wheels more leverage (such as a longer servo arm - but how/where do I make room for that?).

Anyone else have this problem?

(Let me know if this is not clear, and I'll post some pics.)

Thanks.

[Tanis]

Your best choice is a longer servo arm. You could put some kind of spacer under the servo mounts if you need to raise the servo up to clear the tierod.

[2old4rc]

Okay, thanks, I'll try that.

I can't be the only one with this problem, though, right? Or is it my radio? If I got a diff radio w end point adjustments (EPA), would that make the difference??

[Tanis]

No matter what, the servo will only travel 90*(unless you have a Hitec5995 or a TP945) which travel 180*. A longer servo horn will get you more travel at the knuckles, but at the cost of some servo power. The longer the horn the more force it takes to turn it. You can't run a 180* throw servo, unless you have EPA's on your radio.

[rocktoy]

Tanis nailed it. I run a 5995TG on mine and have the endpots set to stop it. My clearance's are still tight to get everything to work the way I want it to. I do not use the stock servo mount though.

[2old4rc]

Originally Posted by Tanis

No matter what, the servo will only travel 90*(unless you have a Hitec5995 or a TP945) which travel 180*. A longer servo horn will get you more travel at the knuckles, but at the cost of some servo power. The longer the horn the more force it takes to turn it. You can't run a 180* throw servo, unless you have EPA's on your radio.

Gotcha, thanks. To add to next year's wish list: 180* servo & radio w EPA.

[rocktoy]

Spend your money on a good 90deg rotation servo and run a bit longer arm. The servo I'm running isnt made really for this use. Its a robot servo.

[Tanis]

I agree with rocktoy, if you run a good quality, strong servo, you can run a longer arm and still have plenty of power. Examples would be a JR DS8711, JR Z9100T, Hitec 5955TG. These are all 90* servos with an abundance of power for a 2.2 rig.

[antikas]

Using a HS-645MG servo and TQ3 radio I had the same problem (knuckles not even touching the C-screws).
No problems now with a DX6 radio, using the same servo. Just dial in the EPAs.

Using stock servo arm and mount.

[2old4rc]

Originally Posted by antikas

Using a HS-645MG servo and TQ3 radio I had the same problem (knuckles not even touching the C-screws).
No problems now with a DX6 radio, using the same servo. Just dial in the EPAs.

Using stock servo arm and mount.

Hmmm, interesting. Could anyone recommend a good/cheap radio w end point adjustment for steering?

[josh97]

jr xs3 synthisized is a good cheap radio

[some_guy]

tq3 with epa's added on

[rocktoy]

Originally Posted by josh97

jr xs3 synthisized is a good cheap radio

I'm using a XS3pro and love it. I had a XS3 before till it got droppedI got my XS3pro for like 130 shipped.

[cato]

As Tanis etal... have stated a better servo makes a huge difference. I run a jr 8711 (+- 400 oz/in torque) with the stock arm, but an M8 radio with EPA helps. Remember that these rigs don't have alot of steering through either. Instaalling the RCP c-hubs and steering knuckles also seemed to increase the streering a bit. Good luck

[Kamikaze]

Any servo will turn 180 degrees with the right radio. At 100% epa you are at 90deg on the servo. Go up to 120% and you will get more throw. I can get 180deg out of a tp945 with a nomadio that has a epa that goes out to 200%. The 5995 is just programed to throw double per unit of input. S oa 5995 at 50% will throw the same as a 5955 at 100%. But a 5955 will throw 180 deg at 200%.

[Tanis]

The TP945 is a 180* throw servo, mine turns 180* even with a TQ3.

[Tanis]

Originally Posted by cato

As Remember that these rigs don't have alot of steering through either. Instaalling the RCP c-hubs and steering knuckles also seemed to increase the streering a bit. Good luck

Also, you will only get as much steering as the stub axles will allow, before they hit the inner axles, unless the cups are modified to clear.

[yoda316]

im using a towerpro 945mg and the radio a rc-18 comes with, it has forward and reverse end points( forcing me to crawl and not have wheel speed, good for practicing different lines) you can also set the max steering throw with it too, i set mine so the steering arm just hits the axle c , im running the stock ax-10 servo arm (till it breaks)

[crawlman]

So after looking I found this. Im running a Hi Tec 5965mg servo. I just finished putting the axel extenders so I could get clearance for the 3/3 batt set up front. Now I have no steering. I read the thread I see many diffrent options for servos I know everyone has there opinion but is there a top of the line servo that will give me the sterring I want? I also noticed the longer servo arm is there a servo strong enough that I would not have to use this Mod?? also im running a servo saver should I get rid of it ?? thanks for the help

[kirktcashalini]

I'm running a DX3.0 with a HS645MG, and took a little bit to first center, then set the curve, then endpoints, but I have it set to about 1mm away from the screws hitting the hubs, turning radius still sucks, but hey its a locked axle crawler hahah!!! I'm more used to minis that can turn on a dime... maybe not for long though, I am crawling more than anything now that I got this rig set up nice for me