Earlier this year, dfs473 has posted a video and some photos from his Sennebogen 683R Telescopic Crane. Since then I got in love with that telescopic boom... He managed to build it in a very pleasant way - always a difficult task to make a 3 section telescopic boom like this, in a compact size, nice looking and fully functional.
This model features 8 functions with 9 PF motors:
- 1x M-motor: Left track
- 1x M-motor: Right track
- 1x M-motor: Extends tracks
- 1x M-motor: Rotates super structure
- 2x M-motors: Winch
- 1x XL-motor: Raises crane
- 1x XL-motor: Extends boom's 2nd section
- 1x M-motor: Extends boom's 3rd section
The model also features manual tilt of the cabin, but probably the most surprising and unseen function into a LEGO Technic model, as far as I remember to have seen, is the horizontal tracks extension, to increase footprint and stability while lifting huge payloads (see it in action at 0:29').
You may find additional photos from this model, at dfs473's flickr and Brickshelf accounts.
Please avoid sending requests to post specific models on this TBs section.
We understand some of you would enjoy to see your creations featured here, but please understand that because only one video gets highlighted per week, it is impossible to accommodate all the great MOCs continuously build by the Technic builders out there. They simply won't fit all and that's also not the purpose of this blog (see the header statement).
Many of your MOCs are scanned anyway and listed for later publication when they do not fit immediately. However some remain in the backlog queue just for too long and eventually loose the relevance or the publication opportunity window. As a rule of thumb, we also avoid publishing MOCs that have been featured by their authors or other fans at some other great web places dedicated to the Technic community out there. It doesn't mean that occasionally some won't get published here anyway.
Thanks for your understanding!