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Feller-Buncher
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This is one of my most complex models – Feller-Buncher. The scale is approximately 1:15, model is based on John Deere 900 series Feller-Bunchers with leveling system.
About this creation
Hello All!

Today I want to present one of my most complex models – Feller-Buncher. It’s the second version because the first one was unworkable and I was started it more than one year ago. The scale is approximately 1:15, model is based on John Deere 900 series Feller-Bunchers with leveling system. I haven't replicated body because I have a lack of green parts. These machines feel trees and stack them for easy removing. At the end of this post you can find the movie with complete demonstration but at first let's see what we have!





Dimensions (max/min): 85(71) x 23 x 64(32) cm, total weight – 5870 g, ground clearance – 3.5 cm.



Independent remote controlled functions:
- moving (four L-motors, left and right tracks are independent). I use old type of tracks for smooth moving;



- leveling system (two L-motors with independent control, four degrees of freedom: forward-backward, side-to-side, two diagonals);





- tower rotation (two M-motors);



- first stage of boom (two L-motors);
- second stage of boom (one L-motor);
- two-dimension feller head tilting (longitudinal – one L-motor, transversal – one M-motor synchronized with tower rotation speed);



- two pairs of claws for productivity improving (two independent micro-motors).

Manual functions:
- saw blade (micro-motor);
- lights (eleven LED pairs).





The model has total eighteen motors (two synchronized additional motors are used for switching between modes of operation, because the number of RC functions is greater then number of Power Functions system channels). These motors are powered by seven IR receivers connected to four battery boxes and two accumulators. Here is electric schematic:



As usual I paste a small photo-session but at first let’s see the movie!



More photos:

















I’ve started the digital model creation but I think I won't complete the building instructions because it takes too much time!

In conclusion I would say that the model control isn't too comfortable. It would be ideal to place four of S-bricks here but I haven’t them.

Thanks for watching!



Comments

 I like it 
  July 9, 2015
this looked like it was fun to build!
 I made it 
  July 9, 2015
Quoting Scotty Jones this looked like it was fun to build!
It was very challenging building!
 I like it 
  July 2, 2015
Looking great and functional as well. Lovely work!
 I made it 
  June 28, 2015
Thanks!
Desert752 Kirill
 I like it 
Matt Bace
  June 27, 2015
Wow! I don't know how I missed this one earlier. The functionality of this model is mind-blowing, especially the leveling system and the multi-degree-of-freedom cutting head. Great work.
 I made it 
  June 26, 2015
Quoting Firas Abu-Jaber I really respect Technic builders and I think their builds are much more complicated than System stuff we build... Specially motorised Technic builds like this one. Bravo my friend and congrats on an awesome model. A+
Thanks! I think it's just experience. I can't create something beautiful from system bricks for instance :)
 I like it 
  June 25, 2015
I really respect Technic builders and I think their builds are much more complicated than System stuff we build... Specially motorised Technic builds like this one. Bravo my friend and congrats on an awesome model. A+
 I like it 
  June 24, 2015
wow, technic masterbuilder :D
 I made it 
  June 24, 2015
Thanks a lot for all your kind words!!!
 I like it 
  June 23, 2015
awesome!:D
 I like it 
  June 23, 2015
I really don't now what to say.....spectacular MOC (once again)
 I like it 
  June 23, 2015
What an incredible machine! Amazing functionality, and that leveling system... wow. You, sir, are a Technic genius.
 I like it 
  June 23, 2015
Wow, this monster is stunning! Great location for the photos. The build is out of the world, the interior mechanisms just blow me away. Congrats on being blogged!
 I made it 
  June 23, 2015
I'm glad you like it!
 I like it 
  June 23, 2015
This is brilliant. The amount of PF you put in this beast and it all works like a charm! I've never seen anyone doing this. That is also an impressive thing about it!
 I like it 
  June 23, 2015
Very impressive engineering, as usual -- especially the leveling system. Like the way you drove the arm actuators with L-motors mounted directly on boom and stick. Bodywork's quite nice whether or not it matches the real thing. Considering the number of receivers and motors involved, the wiring's remarkably well hidden.
 I like it 
  June 22, 2015
Absolutely fabulous. Very complex and functional. One of the better Technic models on this page....
 I like it 
  June 22, 2015
Impressiv and awesome!
 I made it 
  June 22, 2015
Quoting Ape Fight Incredible engineering - this has got to be one of the most able Technic machines on MOCpages. 5 stars and congrats on being blogged at TLCB too
Thanks!!!
 I like it 
  June 22, 2015
Incredible engineering - this has got to be one of the most able Technic machines on MOCpages. 5 stars and congrats on being blogged at TLCB too
 I like it 
  June 22, 2015
what a beast, outstanding technic build.
 I made it 
  June 22, 2015
Thanks a lot!
 I like it 
  June 22, 2015
Genius!
 I like it 
  June 22, 2015
Lego engineering at its best. The leveling system is fabulous!
 I like it 
  June 21, 2015
This is an amazing machine! Your model is an outstanding engineering achievement.
 I like it 
  June 21, 2015
Very, very impressive, especially the levelling mechanism, which is clever and unusual. I like the use of the ball joints to get the drive to the linear actuators but also keep the structure strong.
 
By Desert752 Kirill
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Added June 21, 2015
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