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Zorex-220 Motorized Excavator
Building instructions available
About this creation


Not exactly the first Technic Excavator MOC, but it is one of the few Orange Excavators in Lego Technic land. The orange parts from the 8110 Unimog were a great help in designing this model. The experience I got while creating the Ultimate 8043-MOD was also very usefull. This MOC features:

Full remote controll with dual-joystick controll
All functions can work simultaiously
Full 360+ rotation, no wires going through the turntable
Realistic range for boom, dipper and bucket
Pendular suspension
Easy access to batterybox for switching on/off and recharging
PF-lights


Obviously this model is similar to the famous Lego® 8043 Motorized excavator. There are quite some differences though. In this MOC, all 6 motorized functions can work simultaniously, just like in the Ultimate 8043. Pendular suspension was added as well.



Boom

The motors for operating the dipper and bucket were placed inside the digging arm. This has 2 advantages: it keeps all the drivetrains really short, making them more efficient. And placing the bucket-motor inside the dipper made it possible to give the dipper a large operating range. There are no gears or u-joints going through the rotation point.

And much attention was oaid to the working-ranges of the boom, dipper and bucket, resulting in a more realistic performance and a more capable digging machine.

Wedge-plates were used to cover the boom, giving it that “closed”-look. But I noticed that those plates give the boom extra stiffness



Chassis

Like the 8043, this model uses the “2 drivetrains through 1 turntable” principle. The chassis has all the gear-reduction (1:15 total gearing) reducing the side-effects during upperstructure rotation.

The chassis has a simple pendular suspension system without shock-absorbers.



Upperstructure

Here are the motors for driving (M), rotating (M) and boom-lifting (XL). It also has the battery0box. I use the 8878 rechargeable battery, but the model can be easily modified to use the standard batterybox. There’s also a batterybox which uses AAA-batteries, which is exactly as big as the 8878 making it a good and cheap alternative to the 8878.

And it’s ORANGE !!! I love the model in this colour. Unfortunately, I don’t have enough orange bricks to make the boom in orange as well.



Instructions

Detailed building instructions are available, the best instructions I’ve made so far. But in contrast to my previous instructions, I’m not providing the instructions for free. They are for sale for € 10. Making the instructions takes so much time, time I can’t use for building models. Besides that, I feel that the instructions I make are of high quality, which are worth something.

If you’re interested in buying the instructions, please send an email to info@jurgenstechniccorner.com


























Comments

 I like it 
  August 27, 2013
Great excavator! Love the color scheme and the arm functionality is amazing too!
 I like it 
  April 26, 2012
Oops, I missed this one... Just amazing, works well and the color scheme is superb!!! Keep it up as we all try to do... :-)
 I like it 
  March 27, 2012
Very clean and capable model. Color scheme fits perfect!
 I like it 
  March 21, 2012
That's the best Technic digger I've ever seen!! Amazing movements, and it looks great too. 5 stars. P.S It's on the Lego Car Blog http://thelegocarblog.wordpress.com/2012/03/20/can-you-dig-it/
 I like it 
  March 21, 2012
This is an amazing likeness. The details and technique are impecable. Well done.
 I like it 
  March 21, 2012
Wow, what a super model. The prototype for the 8043 Excavator was actually in orange (It looked SO cool!) but unfortunately the real model was mad yellow. You have a great model!
 I like it 
  March 21, 2012
You can open your own quarry with that one :)
 I like it 
  March 21, 2012
Beautiful model and the all the functions work like they actually should. This should've been a LEGO excavator set!
 I like it 
  March 21, 2012
Beautiful model and the all the functions work like they actually should. This should've been a LEGO excavator set!
 I like it 
  March 21, 2012
Very nice.
 I like it 
  March 21, 2012
Wow that arm has a amazing range of motion. I like the color scheme to. I think the black arm is a good contrast to the orange body.
 I like it 
  March 20, 2012
ravishingly beautiful!
  March 20, 2012
Another of your marvels!. Your technics are always a discovery, I built some of your great RC models, I am by 2 years as follower of your creations, the Red Devil, the YellowRaceCar and the Red. All your creations are absolutely incredible, I will try to learn another time, more about technic, by building this awesome machine. Congratulations for your great work!!! ;)
 
By Jurgen Krooshoop
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Added March 20, 2012
 

The background images used on this page are © Todd Lehman,
available at http://www.lugnet.com/fibblesnork/lego/backgrounds/


LEGO models my own creation MOCpages toys shop Zorex-220 Motorized Excavator


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