Wraith Beginners Guide

[malekia]

So how is the Axial servo horn? Or the Robitronic Short (R17021R)?

 

[Harley]

So how is the Axial servo horn? Or the Robitronic Short (R17021R)?

I run both of them on different rigs. The robotronics has one hole more on its length but that will interfere with some diff covers so it would require a small amount of clearancing with the Dremel.

Both are nice quality pieces.

 

[malekia]

I realize that the Wraith is not intended/designed purely for speed, but what (MPH) can I expect on pavement with this setup?

- MMP, Tekin Pro4 3,300
- 32p 54T spur with 14T pinion
- Hyperion 3S, 35C, 4,200

Also, my Wraith flips over very easily. Would the Axial wheel weights help? I already have my battery in the front.

 

[ColquittCustom405]

Harley, you're my a! Awesome info in here. Can you do a write up and teach me how to drive and paint my Wraith too?:mrgreen:

 

[Plyfold]

Steering question: I've read that the Ackerman steering is best for speed stability, however, in one of the threads it mentions locked diffs, I am wondering whether the Ackerman steering is still beneficial for speed the diffs remain locked? Thinking of upgrading to VP and wondering which would be more appropriate. My diffs will remain locked. Mainly bashing and trail walking. Does Ackerman steering hinder crawling or just not benefit it?

 

[ethernectar]

Guide was great. I've been really surprised how much of a difference 3 things made:

1. Moving battery forward
2. New wheels/tires w/ weights in front
3. Softer springs

 

[vito]

Robinson Racing diff grear a 1552 replace the stock one?

 

[Harley]

Robinson Racing diff grear a 1552 replace the stock one?

Yes

 

[vito]

how aer this drive shaft with a pro 4
MIP Axial Wraith Spline Center CVD Kit [MIP11116] | RC Cars & Trucks - A Main Hobbies

 

[Harley]

how aer this drive shaft with a pro 4
MIP Axial Wraith Spline Center CVD Kit [MIP11116] | RC Cars & Trucks - A Main Hobbies

Yes they are fine.

 

[roninwarrior555]

will the waith interior still fit if i have a standard servo on top of the dig tranny?

 

[Harley]

will the waith interior still fit if i have a standard servo on top of the dig tranny?

Shouldn't be an issue I believe.

 

[roninwarrior555]

ok because i didn't want to go through all the work and money of doing it and find a major road block in my way..

 

[vito]

can i use the stock 48 p gear with a pro 4 thanks

 

[slimfire]

Hallo Harley!


I read some where but do not recall where...some one using different ratio pignon/ spur between front and rear diff. playing with the 38 and 43 t spurs



Is there any advantage or how does it effect the driving or is there recommended set up depending on the type of drive you want (like more crawling or bushing)?


Many thanks for your reply!





Sent from my iPad using Tapatalk

 

[wraithscailer]

ESC and Motor

For a much further in depth discussion read this thread: http://www.rccrawler.com/forum/axial-wraith/346212-choosing-motor-esc-your-wraith-gearing-added.html

Stock ESC
The stock Axial AE2 ESC is a good unit that performs well. It lacks the tuning capabilities of some of the higher end units but for a RTR ESC it is a nice piece. During testing I ran this ESC completely submerged. Axial does not advertise it as waterproof but I had no issues using it as such.

Manual: http://docs.axialracing.com/instruct...01-ae2-esc.pdf


Stock Motor
The stock 20 turn brushed motor is just a cheap brushed motor. Nothing too special. The life span of the stock motor will likely be limited, but depending on how you use it will have the most effect on the life of it. I spent the first 30 minutes of driving my Wraith bombing around in dirty creek water, as I would have expected the motor did not last very long doing that.

Motor

Replacing the motor will likely be on the list of things to do for most people, either by choice or by necessity. When doing this again you should look at what you plan to do with the truck and what you would like to spend. Some choices will require you also replace the stock ESC.

Motor - For Speed
If you are after some speed then a brushless system would be a great choice. Sensored brushless systems will give better low speed control then sensorless systems. A system between 2200 and 3600kv would be my suggestion. After running a 3700kv system in my wraith of nearly a month I have determined that the amount of wheel speed is overkill for anything other than a strictly go-fast basher type rig that will likely not see much if any trail use.

Motor - For Crawling
If crawling or trail riding is your goal then there are lots of options too. The cheapest option is to just replace the stock motor and utilize the stock ESC. I would suggest a motor in the 25-45 turn range depending on how much wheel speed you would like to have. If you would like a little more tuneability or the option to run higher voltage or more demanding motors than you may also want to change out your ESC. There are lots of options for this and depending on the features you want, many factors to look for are things like size, cost, voltage limits, motor limits, waterproof, and programming interface. You can also run brushless systems for this type of driving. It is very important to find a sensored system if you plan to do any sort of crawling.

ESC

There are several reasons to change the stock ESC but as covered before, it's not a necessity out of the box. Most of the reasons will depend on what you decided you wanted to run for a motor and what you wanted to use the truck for (bashing/speed or crawling or a mix).

Some things to consider in a new ESC is what voltage limit it has, if it is waterproof, how is the programmability, what’s the cost, and if it has crawling friendly features. The two brands I would highly suggest sticking with are Castle Creations and Tekin. These two companies make ESC’s that work fantastic for crawlers and you will find a wealth of knowledge on both them here on RCCrawler.

If you have room, the Mamba Max Pro would be a fantastic choice. It will run almost any motor you can fit in this truck, can go up to 6s LiPo and gives you the ability to run sensored brushless motors if you ever decided to change. It is NOT waterproof but precautions can be made to protect it in those situations. Another good choice would be the Holmes Hobbies BRXL which can be purchased in a waterproof version. The BRXL can also run 6s LiPo but has a better internal BEC and some special crawler specific programming. Both of these ESC’s use the Castle Link computer interface to program via your PC.

is the speed control water proof "splash proof also? it dosnt look water resistant at all

 

[gbean]

FYI for all the wraith noobs like me.....

The Axial AX2 ESC drag brake is severely lacking. Even when programming it for 100%, it will roll off just about anything over a 10% grade.
....unless I have set it up incorrectly (pretty sure I have it spot on...)

 

[joshjunior]

thanks to your posts ive got a direction for my wraith

 

[Harley]

FYI for all the wraith noobs like me.....

The Axial AX2 ESC drag brake is severely lacking. Even when programming it for 100%, it will roll off just about anything over a 10% grade.
....unless I have set it up incorrectly (pretty sure I have it spot on...)

Your motor and battery both have a big effect. Don't lay all blame on the ESC.

 

[gbean]

I understand that.
My battery is 2s 5200mah 30c lectron pro. It has been great. They even advertise continuous and burst current rates that seem accurate.

The only other item in question is the motor, but I've tried a few..
I know a much higher turn motor will add to the effect.