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Project: Wronkus. A nubcake's journey.

Matt Wright

Newbie
Joined
Nov 14, 2012
Messages
48
Location
Madison, AL
This thread is where I will chronicle my RC project Wraith. As I start, this will be pretty lame as I am a newb to the RC world. Mostly bolt-ons for now, but I will most definitely venture out into fabrication and whatnot.

For background, my life's passion is 1:1 rock crawling. I live in the "rock bouncer's paradise" in north Alabama. I have been into the sport for over 10 years, and it is why I became a mechanical engineer. I have a bunch of model cars, trucks, and planes at home. And while I was a child I had a bunch of toy-grade RC trucks.

Here's a pic of my 1:1 after I let the owner of CBFABWERKS borrow it for RBD :flipoff:
(EDIT: linking the pic didn't work. See attachment. Also added a pic from Gray Rock)

My RC crawler adventure first started by purchasing an RTR Wraith. I wouldn't do it again, but in a way I'm glad I did. I was able to learn a lot about RC's from getting the RTR. If I was to do it again though, I'd get the kit. For an idea of how out of the loop I was when I first got it, check out This Thread.

The first night I had it, I pulled a bunch of screws out of everything. I lost a knuckle screw in the first couple of minutes. I did not know I needed to tighten everything down, because I thought Axial would have better quality control in their engineering department :lmao:.

Fast forward a couple of weeks, and here's what I've done so far:
  • Lowered the suspension using the stock mounting holes, flipped the lower CA mount, adjusted the shocks to the shortest setting
  • Set screw on the pinion came out, and chewed up the spur. Now I have an 87T spur, and I swap out pinions (14T, 17T, 20T pinions)
  • 5.75" RC4WD Boggers
  • 2.2 Axial Rockster Beadlocks
  • 3 oz in each front wheel
  • Front Mounted Battery (receiver is in rear now)
  • STRC Aluminum Knuckles & C's
(that's all I can remember right now anyway)

It has been a big hit. But the housing was stripped in multiple places from the factory, the motor is weak, the servo is dying, etc. My girlfriend wants one pretty badly, so I ordered a Ridgecrest RTR yesterday. I wanted to get her a Wraith kit, but she wants what she wants! The nice thing about it is that it can get all my hand-me-down parts. I've been doing that with 1:1's for years. For example, whenever I upgrade the knuckles/C's from STRC to Vanquish, I will put the STRC's on the Ridgecrest. I also already cut the small lugs out of the Ripsaws that came with my Wraith last night in preparation for her rig. I'm sure we will be interchanging tires/wheels quite a bit. I plan to have a few sets.

BillMeLater has a $500 "no-interest no payments for 6 months" type deal going right now, so I'm ordering some things I know I would buy in the next 6 months anyway. But this way I am able to get it all now, spend less than $100/mo on it, and I have no interest. So I'm ordering (right now):
  • Level3 RC Shock Droop Kit
  • Axial Aluminum Shocks
  • Axial Soft Springs (black, 1.04 lb/in)
  • CKRC Machined Screw Kit
  • 2.2 Axial XR10 "Competition" Beadlock Wheels
  • 2.2 HPI Rock Grabbers
  • Vanquish .6 Bullet Weights
  • Vanquish front housing
  • Axial U-joint style front axle shafts
  • Vanquish 10pc Titanium Link Set (control arms and steering)
  • CKRC Wraith Hood Hinge Kit (so I can get to the battery easier)
  • "CKRC Special" Servo (200 oz-in, very cheap, TEMPORARY)

I'm also going to grab a 55T Axial motor just to play with. Maybe I can get some better run time, and better low end throttle control out of it.

The main plan is that I'd like to have a rig that can crawl all kinds of stuff, and also tackle the mud. Like a TTC rig. I'd like rear steer, TTC motor, 2 spd trans, as much metal replacement parts as possible, etc. I feel like it would be a lot like having a 2 speed powerglide, and a straight drive transfer case in a 1:1. Obviously there is a lot more to it than that, but it gives you an idea. Eventually, I'd like to swap to a custom built tuber; maybe an EOR321 replica or something of that nature.

Anyway, that's the intro.

I'll add pictures as soon as I can, but there's not much to see YET.

Stay tuned...
 

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Here are some pics when I first got it. It's crazy how tall they are when stock. I don't have any pics of it lowered all the way, but I'm sure you all know what that looks like.
 

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Here it is with the 2.2 Boggers. Drove the wheels off of it. I was playing with it in the dark, letting my dog chase it around. I drove it back to myself, and it was 3 wheelin!... Took forever to find the tire/wheel in the leaves.
 

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Battery relocation. It does not shift around, and the Wraith has taken some hard hits on backwards rollovers. So it is surprisingly solid for such a quick fix. I honestly did it as a temporary mock-up, but I don't know if I'm going to undo it :lmao::flipoff:
 

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TN cut the Ripsaws a couple of nights ago.
 

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Cut the Boggers last night. And I'm serious when I say this: they hook up so good now that it burnt up the motor and servo FAST last night. There was no slip between the tires and the terrain, and it kept jamming up very easily. Eventually, I'd lose throttle and steering response. Then I'd pick it up, turn the tires back and forth, and it would drive around again for a little while until it jammed up again. It didn't do that 5 minutes earlier with the TN cut Ripsaws. I was surprised not to see any magic smoke.

I'm not surprised though. Big tires + wide offset wheels + wheel weights + front mounted battery + stock servo designed for much less = issues
 

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Welcome from another Bama member..... rig is looking good.... If you want a TTC rig, a 2spd is the way to go, and depending on battery size.... maybe a HH 7-14t puller motor.... thats the setup I ran in my scx10 which was tons of fun and crawled awesome on 3s.....

my wriath is a kit version with similar taste in mind..... I am running a MMP /13.5 brushless combo on 4s in it, and it does very well for what I use it for... its not as smooth on startup as a brushed motor, so a bit of crawlability is lost but It fits my needs perfect... I also just added a front sway bar which helped with stability at speed, but if you are planning to stick with a higher turn motor that won't be needed...

I would look into getting a BEC for your servo, that will help it some until you upgrade, then it will still help.... you can check my build here, although I haven't updated it lately

http://www.rccrawler.com/forum/axial-wraith/355753-mudn_1s-wraith-kit-build-slowly-pics-added.html
 
Roll Tide. What part of Alabama?

I'll check yours out when I get home tonight. Can't see any of your pics while I'm at work, because of where they are hosted. As far as the motor goes, I'm just throwing a 55T Axial motor in for now because it is cheap and easy, and I think it won't burn up. Crawling is my #1 priority with it, and right now the stock motor isn't cutting it. It'll tide me over until I get a real man's motor and ESC, LOL.

Being new, I still need to look into how the BEC will help my servo. Right now I don't get it, but I'm sure I'll understand after some research.
 
The Ridgecrest has shipped.

Logan approves.
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Got the 55T motor in last night. I knew it would be slow, so I put the 20T pinion back on. I also knew I'd have more torque. However, I thought I'd have MORE torque, and didn't realize I'd be THIS slow.

BOOORRRRRRINNNGGGGG

Now I understand. Nubcake Lesson #134
 

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I know it's not a Wraith, but the lady's Ridgecrest came in yesterday. After driving the Wraith, and knowing that the Ridgecrest has all the same drivetrain, I was very impressed with the performance. It rained yesterday, so we took it in the parking lot and did cyclones!"thumbsup"
 

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His and hers.
 

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Lowered the Ridgecrest last night by flipping the CA mounts, and adjusting the nut on the shocks. Also threw on the cut Ripsaws. I didn't get any pics, but it defintely does a lot better. I'll take some pics tonight.

I just got confirmation that my shipment from CKRC should arrive today. I have to train after work (I have a powerlifting meet Feb. 2), so I'll have to let the anticipation build for an extra couple of hours.

My buddy ordered everything for his build, as well. It will be a Tekin powered XR10 with a Mantis chassis. As such, the Ridgecrest will not only get hand-me-downs from the Wraith, but also from Brian's XR10.
 
Went home for lunch. This came in while I was there...

I was a bit disappointed to see that the aluminum axial shocks still use parts off of a parts tree. The others I was looking at didn't, and I guess I kind of just assumed... :roll:
 

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Got the front end together last night. The front axle, soft front springs, front suspension links, front steering links, servo, and axle shafts are all on. I put the HPI's and XR10 wheels on the Ridgecrest, but I haven't taken a picture yet. Going to do the rear suspension after work today, as well as the shocks and droop kit, and everything else. I did take it outside and try it on my "test stump" and I could already tell a wonderful difference. I can't wait to see how much better it does with the links in the back, aluminum bodied shocks, and the droop kit. I'm starting to think the droop kit may be too low much for this length of a shock, but we will see. If that is the case, then I will put longer shocks on the Wraith and put the aluminum bodied shocks on the Ridgecrest.
 
The Wraith now has:
  • VP front housing
  • VP steering and suspension links
  • Axial U-joint style front shafts
  • Axial aluminum shocks
  • Axial "black" springs (~1 lb/in)
  • CKRC Servo
  • L3 droop kit
  • 10A Castle BEC
  • 3s 5600 mAh 50C Lipo
  • Battery / ESC mounted differently (more clean)

The Ridgecrest now has:
  • HPI Rock Grabbers
  • XR10 Wheels
  • Axial "soft" springs


I'll get some more pics up, but it's nothing you guys haven't already seen. I'm glad I changed the Wraith knuckles before I killed one, because I ripped one off of the Ridgecrest last night. The front bumper has also found a way to remove itself from the body.
 
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