RC Truck and Construction  

Go Back   RC Truck and Construction > RC Truck's Ag and Industrial Equipment and Buildings > Construction Equipment > Construction Equipment Tech

Construction Equipment Tech Hydraulics, Electronics, General Engineering, ect in constr equip


Reply
 
Thread Tools Display Modes
  #1  
Old 07-05-2016, 11:48 PM
JDToumanian's Avatar
JDToumanian JDToumanian is offline
Newbie
 
Join Date: Feb 2015
Location: Phelan, CA
Posts: 18
JDToumanian is on a distinguished road
Default Review - New RC4WD / Eagle 4200XL Brushless Track Upgrade Kit

Hey Guys,

A few weeks ago I ordered the brushless track upgrade for my 4200XL from Eagle on AliExpress. I got an email saying that the older kit was no longer available, but they could ship me their new kit instead if that was okay... I said sure! The original brushed motors are under-powered and slow, the old brushless upgrade kit was supposedly too fast and hard to control. This new kit is supposed to be more durable, more detailed, and move at a more correct 48 rpm. The package arrived today and I immediately took one of the motors apart for pictures... Here's some thoughts before I install them.

As before, the new kit includes two geared motor assemblies, two brushless ESCs, and a new slip ring unit. There are no instructions.

The motor units are indeed more detailed with a better scale appearance. I think it will be easier to pass off the 4200XL as a 1/14 scale model instead of 1/12... Indeed, Eagle's press release for the new 4200XL version 2.0 excavator calls it a 1/14 scale model now.

The brushless motors themselves are an outrunner style, you can get a little peek of a chrome rotor in the third pic below, where the wires enter the casing. This may be a bit of a concern, since it seems to me that dirt could enter there. I may not use silicone, but I think I'll seal those openings up with something before I install the motor units.

The motor housing, drive sprocket, and gear case are a bright die-cast aluminium. Only the mounting arm is machined from solid and anodized black. I don't have any problem with parts being die cast, they can be quite strong, depending on the alloy. Time will tell if these parts wear better or worse than previous components or competing products. I do, however, wish that the bright die cast parts had been anodized or painted.

One of the features touted about the new kit is that the wires have gold-plated mini banana plugs pre-installed so 'no buyer welding' (soldering) is needed. Well, my motor units have plugs installed and the ESCs have sockets, but the slip ring unit has nothing. The pictures on their website do show plugs and sockets on the slip ring unit, so this was an oversight on my kit. I haven't decided if I'll fire off an email to get some plugs and sockets sent to me or cut them off and solder it up... I'll probably send the email.

The planetary gear assemblies seem nicely made and strong enough, but I don't have a basis for comparison as I have not opened up my brushed motors or seen the innards of the older brushless kit. One thing I noticed is that I am unable to drive the motor in reverse by trying to twist the sprocket, so unwanted rolling or tricky adjustment of the ESC 'drag brake' is unlikely to be an issue with this kit.

It may be a little while before I get this kit installed, but when I do I'll update this thread with a performance report.

Regards,
Jon









Reply With Quote
  #2  
Old 07-06-2016, 02:13 AM
Northern Farmer's Avatar
Northern Farmer Northern Farmer is offline
Big Dawg On The Bone
 
Join Date: Jul 2015
Location: Montreal QC
Posts: 1,513
Northern Farmer is on a distinguished road
Thumbs up Re: Review - New RC4WD / Eagle 4200XL Brushless Track Upgrade Kit

Nice of you to take the time to do a review, well done.
Reply With Quote
  #3  
Old 07-07-2016, 02:25 AM
Lil Giants's Avatar
Lil Giants Lil Giants is offline
BANNED
 
Join Date: Aug 2010
Location: Saskatchewan
Posts: 4,431
Lil Giants has disabled reputation
Default Re: Review - New RC4WD / Eagle 4200XL Brushless Track Upgrade Kit

It'll be interesting to see how long that diecast sprocket lasts ...my experience with anything made from diecast aluminum has been very weak to brittle.

Great job on the write up.
__________________
Sharing knowledge is one thing that defies basic arithmetic logic --- the more you share, the more you get!

Joe
Reply With Quote
  #4  
Old 10-23-2016, 08:44 PM
61pete 61pete is offline
Newbie
 
Join Date: Aug 2016
Posts: 4
61pete is on a distinguished road
Talking Re: Review - New RC4WD / Eagle 4200XL Brushless Track Upgrade Kit

Have you had a chance to install this? I just started mine today. I just can't figure out how to remove the old slip ring from the house. Also I have no clue on how to wire up the new brushless ESCs. Hopefully you have finished your install. I'd love some guidance!
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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 Off

Forum Jump


All times are GMT -4. The time now is 12:06 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.