Go Back   RCCrawler Forums > Scale Rigs General Tech > 1.9 Scale Rigs
Loading

Notices

Thread: Flyingwil' 2dr JK build

Reply
 
LinkBack Thread Tools Display Modes
Old 03-23-2017, 11:48 AM   #1
Newbie
 
Join Date: Oct 2016
Location: Mesa
Posts: 22
Default Flyingwil' 2dr JK build

I'm fairly new to this whole RC thing. It all started with years of me asking the wife for an SCX10 for Christmas for years in a row. Last year guess what was under the tree? Yup I was hooked... hook line and sinker. Now having 4 SCX10's it was time to graduate... So this Christmas I asked for a China JK body, and boom under the tree it was in all its glory.



So being new to the whole building thing, I couldn't figure out how shoehorn an SCX10 chassis under it. I'm hoping that in a few years I can look back and laugh at myself for saying that! With that said, I set off to find a chassis that I could make work with my skill set. Someone in the local RC club had a GCM J2 Skeleton up for sale so I snagged that one up as soon as I saw it!



It came with a front and rear bumper and cage for the JK. Albeit not perfect, it's a start. The J2 chassis didn't even have a scratch on the links! I considered my self lucky to find this gem.

I'm pretty impressed with the chassis fit and finish. So now it's off to the parts shelves and bins to see what spares I'll be plucking off the shelf to build this guy up. I'm still torn between C1 and C2 for overall build, I'll figure that out soon enough.



So off to the kitchen I went to get a, um, beverage, and I dig the 1.9's under it. These are modified Mickey Thompson wheels and look awesome under the Jeep (body is just sitting on tires. So what's modified about those wheels/tires? Silicone instead of foams:


I might just leave them on the shelf for my other C2.

So the dilemma was now axles. Yeah, what should I grab? Since I'll be competing with it, this is what got plucked out of the shelving bins:


I have an oddball trans that I think I'll use. Don't know much about it other than I got it at a trunk-or-treat sale at a comp, it's shimmed and rolls super smooth....


I'm slowly collecting parts for this build. Got a nice shipment in from KTM hobby (only place I could find with the cantilever shocks in stock)


Servo finally got in:


Seems like I am forever waiting on the mailman so I can continue the build.
flyingwil is offline   Reply With Quote
Sponsored Links
Old 03-23-2017, 11:56 AM   #2
Newbie
 
Join Date: Oct 2016
Location: Mesa
Posts: 22
Default Re: Flyingwil' 2dr JK build

Made a tiny bit of what I thought was progress on the GCM skeleton. I reversed everything that was on it when I got it to fit the unknown transmission that I had laying around, fit shocks, fit axles, fit radio tray and had fun.


So apparently I need to reverse this whole thing... with the panhard link fixed on the 10.2 axles I can not flip that, so motor needs to be on drivers side...

Here's where I got to this afternoon:




So my issue that came up was the tiny steering link, dry run with no body caused small bump steer I thought I could mitigate by eliminating the aluminum transmission and going back to the plastic one. This meant reversing motor, trans, t-case, and radio tray to be able to get the servo horn as far away as possible from the knuckle. Definately time for a beer!

I was surprised on how balanced the GCM Skeleton was:


It was time to start swapping and building a trans. Well easy fix, hardest part was cleaning the layers of locktite.


One thing I learned from YouTube is to mark your wheels so you can distinguish front from rear. I use different color screws in the beadlock a on the inside of the wheel.


So I'm in need of a tip from you all, how do you get the servo dampener (cushion) to keep from spinning while tightening it down? This is what I am talking about:




While I was at this swap, I thought I'd tackle the battery mount. Since the GCM rear shock plates do not line up with cantilever bracket, I removed those plates. I wasn't sure how to get around this and it dawned on me while putting the spacers on the transmission, why not space them out too? I started by marking the holes on the mount that line up with the DinkyRC plates, drilled them and mounted them using spacers.


I'm very nervous about this setup, as I have broken every 3D printed thing on my SCX10 from knights customs and others... so I am a bit concerned about my solution since it ties into my rear suspension. To help it a bit I did add washers to the screws.




I think I got the steering links to look more like it should now.
flyingwil is offline   Reply With Quote
Old 03-23-2017, 12:00 PM   #3
Newbie
 
Join Date: Oct 2016
Location: Mesa
Posts: 22
Default Re: Flyingwil' 2dr JK build

Shocks finally got in and I put them all together with the exception of adding the sticker to the resi.

Not too sure who designed GMADE's packaging but it's definitely lacking and reminds me of when Americans wouldn't buy LG products because it was then Lucky Goldstar... LOL


Assembly was pretty easy, as long as you look at the instructions. I missed an O-ring and had to disassemble after adding fluid then reassemble to get the O-ring I skipped. I assembled with green slime to make sure they didn't leak... never had a shock yet that didn't leak.


Was super busy and the Jeep got neglected a bit. Got some minor trimming done and body mounted up on the chassis.







Looks like I got a whole lot of trimming ahead of me.
flyingwil is offline   Reply With Quote
Old 03-23-2017, 12:03 PM   #4
Newbie
 
Join Date: Oct 2016
Location: Mesa
Posts: 22
Default Re: Flyingwil' 2dr JK build

Added some brass scx10.2 knuckles to keep the weight down low.



Started making a servo winch based around a K2 winch. Found the first complaint I have about the GCM products, the front servo holes seem drilled inward too much for a standard servo, had to modify my servo to make it work with the radio tray, and hope it holds up. Changed the servo from top mounted like in pic below to bottom mounted and it JUST clears the VP servo horn. Had to modify the winch servo for the front body mount screw too. I'll get more once I get a winch controller.

flyingwil is offline   Reply With Quote
Old 03-23-2017, 08:08 PM   #5
RCC Addict
 
Join Date: Jun 2004
Location: ORegon
Posts: 1,002
Default Re: Flyingwil' 2dr JK build

Servo grommets? Why? Get rid of them. I believe they are meant to isolate the servo from vibration in nitro applications. If the webbing on the servo ears interfere, you may have to slot the mount to accept them the way you have it mounted. You could remove them, but I'd rather keep the reinforcement on the plastic part and sacrifice a bit of material on the metal part.

Your drag link (from servo to knuckle) looks like it's going to bind at the rod ends under bump with those bent rod ends. Cycle the front suspension and prove me wrong, or you may have to switch to straight rod ends. It doesn't look like you will lose any down travel with straight rod ends, but your up travel is definitely threatened with those bent ones.

Good start! Keep it up!
RCMFMaxxMan is offline   Reply With Quote
Old 03-23-2017, 08:23 PM   #6
I wanna be Dave
 
Join Date: Sep 2006
Location: SoCal
Posts: 2,888
Default Re: Flyingwil' 2dr JK build

Look forward to following along with your build up Wil

Is that GCM chassis aluminum or steel ?
My guess is aluminum... but I can't weld to that fer chit.

dang those tires look like 50" rubber underneath that jeep

I don't know squat about them servo winches and so I'm useless in that.

But I do have two of those Savox 1230 servos.
Work great in my 1/10 scale SCX-10 rolling 4.80" tires.
No problems as long at the inserts in the tires aren't too soft.

I've yet to break either of the two I have...
But then I don't beat on them like I stole them neither. Lol

But my 1230 would become overly hot turning 5.80" tires in my larger 1/6 scale.
So I had to pony up for Savox's monster 2290 (bad ass/but not cheap).

I'm thinking if I were rich... I'd have that 2290 servo in all my crawlers

Like that body... even though I'm not a mindless Jeep fan

Your first few pictures were so big...
my 20" screen was not big enough and I had to scroll right to view them
and read what you had typed.

Thanks for making them smaller

3s voltage ? more ? (forget 2s, snooze)

I'm not sure of what electronics yer using...
But I would suggest using the HH's RX by-pass ( Y ) and feed that servo
directly off an external BEC, supplied off the primary battery.

I realize the 1230 only requires 6 volts... But the amp draw of those 1230's can still be a little hard on the RX if run thru it.

^ by passing the RX is easier on things and makes it more reliable IMO.

My CC BEC is set to 6v for the 1230's
But I run my other CC BEC at 7.4v for the 2290.

So using the RX by-pass and external BEC means yer not limited by any servo voltage... now or later.

If ya use an external BEC to power the servo, then the ESC's internal BEC can power the RX with less chance of a hiccup.

Hurry up so's it don't look like a shelf queen for too long !? Lol
TacoCrawler is offline   Reply With Quote
Old 03-23-2017, 10:24 PM   #7
Newbie
 
Join Date: Oct 2016
Location: Mesa
Posts: 22
Default Flyingwil' 2dr JK build

Quote:
Originally Posted by RCMFMaxxMan View Post
Servo grommets? Why? Get rid of them. I believe they are meant to isolate the servo from vibration in nitro applications. If the webbing on the servo ears interfere, you may have to slot the mount to accept them the way you have it mounted. You could remove them, but I'd rather keep the reinforcement on the plastic part and sacrifice a bit of material on the metal part.
Right on, thanks man.



Quote:
Originally Posted by RCMFMaxxMan View Post
Your drag link (from servo to knuckle) looks like it's going to bind at the rod ends under bump with those bent rod ends. Cycle the front suspension and prove me wrong, or you may have to switch to straight rod ends. It doesn't look like you will lose any down travel with straight rod ends, but your up travel is definitely threatened with those bent ones.



Good start! Keep it up!
It actually doesn't bind, I'll post more up soon.


Quote:
Originally Posted by TacoCrawler View Post
Look forward to following along with your build up Wil

Is that GCM chassis aluminum or steel ?
My guess is aluminum... but I can't weld to that fer chit.
I think it's aluminum... honestly didn't pay much attention to it, lol

Quote:
Originally Posted by TacoCrawler View Post
dang those tires look like 50" rubber underneath that jeep
I agree, and thus why I'm probably going to comp cut it on the rear, and not sure on front yet....

Quote:
Originally Posted by TacoCrawler View Post
I don't know squat about them servo winches and so I'm useless in that.

But I do have two of those Savox 1230 servos.
Work great in my 1/10 scale SCX-10 rolling 4.80" tires.
No problems as long at the inserts in the tires aren't too soft.

I've yet to break either of the two I have...
But then I don't beat on them like I stole them neither. Lol

But my 1230 would become overly hot turning 5.80" tires in my larger 1/6 scale.
So I had to pony up for Savox's monster 2290 (bad ass/but not cheap).

I'm thinking if I were rich... I'd have that 2290 servo in all my crawlers
I haven't been a huge fan of the Savx, but my 1283SG has outlived a VP mount on my SCX10, so I thought I'd try this one out. I run the BEC's at 6v

Quote:
Originally Posted by TacoCrawler View Post
Like that body... even though I'm not a mindless Jeep fan

Your first few pictures were so big...
my 20" screen was not big enough and I had to scroll right to view them
and read what you had typed.

Thanks for making them smaller
Hmm I'll have to see what's up, I'm almost 100% posting from mobile devices so one must be being a jerk.

Quote:
Originally Posted by TacoCrawler View Post
3s voltage ? more ? (forget 2s, snooze)

I'm not sure of what electronics yer using...
But I would suggest using the HH's RX by-pass ( Y ) and feed that servo
directly off an external BEC, supplied off the primary battery.

I realize the 1230 only requires 6 volts... But the amp draw of those 1230's can still be a little hard on the RX if run thru it.

^ by passing the RX is easier on things and makes it more reliable IMO.

My CC BEC is set to 6v for the 1230's
But I run my other CC BEC at 7.4v for the 2290.

So using the RX by-pass and external BEC means yer not limited by any servo voltage... now or later.

If ya use an external BEC to power the servo, then the ESC's internal BEC can power the RX with less chance of a hiccup.

Hurry up so's it don't look like a shelf queen for too long !? Lol
Don't laugh, but it's temporary for now... I'm running 3S 20c 2200 in it now. ESC is a hobby wing WP-1060 free-bee from Asia Tees, and it has a built-in BEC set to 6v. Since we're just over half way though this season for comps I have time to get it worked out and go to what I want down the road in time for pre-season comps... the plan is to go with Tekin Roc412 2300kV w/ RS Gen2, and castle BEC... we'll see what I can save up for, but right now it's spare parts and goodies under $50...


Last edited by flyingwil; 03-24-2017 at 02:10 PM.
flyingwil is offline   Reply With Quote
Old 03-24-2017, 08:30 AM   #8
RCC Addict
 
Join Date: Jun 2011
Location: Gilbert, AZ
Posts: 1,634
Default Re: Flyingwil' 2dr JK build

Looking good Wil! Already made it farther in your build thread than I ever do... lol
Big Daddy is offline   Reply With Quote
Reply



Flyingwil' 2dr JK build - Similar Threads
Thread Thread Starter Forum Replies Last Post
Die-Laughing's 1st Class 2dr JK Build Die-Laughing 1.5 Scale Rigs 153 07-04-2016 06:40 PM
Stretched and Comp Cut Jeep JK 2dr. Build LetsGoMuddin 1.9 Scale Rigs 23 12-10-2014 02:28 PM
Trail Ready Wraith Build - 2dr Jeep body Arctic Fire Axial Wraith 1 10-10-2014 09:49 PM
Yotapane's 2dr jk re-build thread Yotapane 1.9 Scale Rigs 17 03-02-2014 08:47 PM
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 06:17 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
Copyright 2004-2014 RCCrawler.com