DLuders

@ PeterleB: Welcome to Eurobricks! Please note that the maximum photo size allowed is 800x600 pixels. Your pictures are HUGE and did not appear on your original post. Could you resize them?

@ Grohl: Do you mean this "Weeing Dog"? Building instructions for his Lego Technic 8067 alternate are available on Tomik's website (click on the picture once there).

I compiled LegoTechnicModel05's alternate Building Instructions into these individual PDF files available for download (via MegaUpload SkyDrive): Lego Technic 8043C Alternate Snowmobile (Snow Groomer): https://skydrive.live.com/redir.aspx?cid=5641cce2a1cc0886&resid=5641CCE2A1CC0886!151&parid=5641CCE2A1CC0886!150 . Lego Technic 8053C Terex Alternate: https://skydrive.live.com/redir.aspx?cid=5641cce2a1cc0886&resid=5641CCE2A1CC0886!152&parid=5641CCE2A1CC0886!150 . Lego Technic 8070C Pagani Zonda Supercar Alternate: https://skydrive.live.com/redir.aspx?cid=5641cce2a1cc0886&resid=5641CCE2A1CC0886!153&parid=5641CCE2A1CC0886!150 .

Tomik's Building Instructions for his "Formula" alternate of the 8041 Race Truck set have been compiled into one 4.6-MB PDF file available for download here (via MegaUpload SkyDrive).

On his Brickshelf gallery, Louskam posted photo-sequence Building Instructions on how to motorize the Lego Technic 8081 Extreme Cruiser set. He built it in WHITE to allow folks to see the various parts better than the original BLACK color. I compiled all of Louskam's 134 photos into one 26-MB PDF file available for download here via MegaUpload SkyDrive. Each page is numbered.

Nice review! I always wanted to get the 8855 Prop Plane set, or at least the special propeller.

Nice "reverse engineering"! Yes, please post the LDD file. Little Technic vehicles like this are good to fiddle around with when thinking at the office....

Boy, you sure like to "think big"! It's taken over your Living Room, correct?

@ Ralph_S: Very nice! I was wondering whether you would add this to your "LEGO Military Models" blog. I've seen real Ospreys at airshows where I work, and your model is very realistic!

TLG should consider the Lego-compatible motor & servo motor adapter kits sold on Inanimate Reason's website. If folks don't mind that the parts don't have "Lego" written on them, you can buy them right now:

On the contrary, the 59521 Exo-Force wheels are useful for Lego Technic creations. On his Facebook page, Sariel will be using them on a huge Lego Technic Bucket Wheel Excavator: "Some of you may still remember the big bucket wheel excavator model that I abandoned 2 years ago (shown here) because I was unable to make it structurally strong enough. Well, I just decided to give it another try, probably in some 3 or 4 months when I'm done with my book. It will be the same machine built differently: with more massive chassis and somewhat smaller superstructure. It will drive on six tracks, each 70 links long, and it will use Hailfire Droid wheels as a ball bearing for the superstructure. The bucket wheel will be built around the big lime Exo-force wheels. The carrier and the superstructure will be probably independent in terms of both remote control and power supply. I have also bought 400 4x2x1 stud bricks that will be used to reinforce the chassis and the masts. The superstructure will house functional conveyor belts and the whole thing will probably weight well over 10 kg." Here is his picture of the old Bucket Wheel Excavator:

On his Flickr photostream, Barman/ Barman76/ barebos (Barry Bosman) posted this motorized Lego train switch controlled by Power Functions: Photo-sequence Building Instructions appears on his Brickshelf gallery. The switches were part of his Lego Crane layout servicing his Maersk train containers: "Minifig scale Technic container crane, that can load and unload containers on the 10219 Maersk train, the trucks or in the depot. Using Power Functions to control the train and crane, train is powered by 2 PF train motors. Crane moves by 3 M-motors and a old 9V micro motor (red). Video on YouTube: ," where he added "In a couple of months instructions will be available. This is not a LEGO set and is not for sale."

Sariel has double Exo Force wheels on his "Lime" RC vehicle. For each revolution of the motor, the wheels can roll over a LOT of territory:

On BrickTruckTrial, 88high/ Mr88high recently presented his Lego Technic Tatra 815 6x6 Trial Truck. He wrote: "Hello TruckTrial fans out there! Here I present my biggest, baddest, and most powerful TrialTruck yet! It is a Tatra 815 6X6, which is based on my last Tatra 4X4 frame. In fact, it uses the exact same front axle-and-3speed gearbox module. Below, I will list the many fascinatiing features of it: 1) 6X6 drive 2) Realistic Tatra-style suspension 3) 3-speed transmission, with remote-shift via LA * GEAR 1: Geared down 4X * GEAR 2: Geared down 3X * GEAR 3: Geared up once, then geared doen 2 more times. 4) WORKING winch (see my YouTube channel for the video) 5) Dummy working V8 6) Pneumaticly adjustable suspension (see my YouTube channel for the video) 7) Reinforced 3-gear steering rack 8) Hard shocks on all 6 axles, front one has extra rubberbands, rear 2 axles are long-travel. 9) Can go up a 50* slope 10) Drives really well in the snow (see my YouTube channel for the video) 11) reinforced cabine 12) dual side-mounted battery boxes 13) LED lights 14) MY VERY BEST TRIALTRUCK YET! 15) MY VERY 1st 6X6 YET!" This shows it "snow wheelin'" in Prescott, Arizona USA: This shows "...how the Pneumatic raising/lowering works:-Switch 1 & 2 both "in" = suspension free of all pneumatic air pressure. Suspension can move freely over bumps. -Switch 2 "out", Switch 1 "out" = raise suspension and compress shocks. The suspension can't compress. -Switch "out" , Switch 1 "in" = suspention hardened at full droop. The suspension can't compress." Link to of the powerful winch -- "It is powered by 1x PF M-Motor, believe it or not. It uses a worm-gear-driveline system, especially developed by me. As you can see, it has tons of power to pull the truck."

slfroden posted this of "A proof-of-concept to realise the control of two Lego linear actuators using a single Lego motor."The top linear actuator has more resistance than the bottom one due to the white rubber belt. "When the motor spins, it turns the differential, which provides power to the bottom linear actuator since it has less resistance. "Once the bottom linear actuator has extended or retracted as far as it will go, it's resistance becomes greater than the resistance provided by the white rubber belt, and the power from the differential then transfers to the top linear actuator. "The key to getting this working well is getting the resistance of the white rubber belt just right. "A modified version of this set-up could be used to control a gearbox, such as Sariel's 4-speed Compact Linear Gearbox ( http://sariel.pl/2010/07/4-speed-compact-linear-gearbox/ )." slfroden made this follow-on : "A proof-of-concept to realise the control of two gearbox selectors using a single Lego linear actuator and a single Lego motor. "When the the linear actuator extends it moves two linkages. The bottom linkage has a stretched white rubber belt, and as the belt begins to contract the bottom linkage moves first. Once the bottom linkage can move no further, then the top linkage begins to move. "When the the linear actuator retracts, the top linkage moves first, followed by the bottom linkage. "The gearbox design is a slightly modified version of Sariel's 4-speed Compact Linear Gearbox ( http://sariel.pl/2010/07/4-speed-compact-linear-gearbox/ ). "Unfortunately this set-up only uses three out of the four available gears in the gearbox."

On his Brickshelf gallery, Jorgeopesi posted 19 BIG pictures of his Lego Technic Unimog U406 Trial Truck. Roughly translated from Spanish to English, he describes it that it is a "Trial truck with two motors -- XL for propulsion and two normal [Power Functions Medium motors] for change and direction." He also made this YouTube video to show its climbing abilities: http://www.youtube.com/watch?v=1XyMtaUipsY

I added five photos of the above tire/wheel combination to my Flickr photoset. Go there to see the narrative: No Dishing When Tire Sits on Inner Rim -- Note that the sidewalls of the x1825 tire are straight when mounted on the INNERMOST rim of the 22969 wheel. There is no "dishing" of the contact patch with the ground. Outside diameter of tire = 94 mm: WHEN TIRE IS MOUNTED ON THE OUTERMOST RIM OF THE 22969 WHEEL -- (Outside View) x1825 Lego Tire on 22969 Wheel -- The sidewalls of the x1825 Lego tire looks better on the outside of the 22969 wheel: Asymmetric Seating of x1825 Lego Tire on 22969 Wheel -- Notice the "dishing" of the rubber across the "contact patch" with the ground, and the asymmetric seating of the tire on the rim. The outside of the wheel is to the right: Outside Diameter of x1825 Tire = 94 mm -- The outside diameter of the x1825 Lego tire (from the 8110 Unimog U400 set) measures 94mm when mounted on the 22969 wheels from the 8466 Off Roader set: Inside View) x1825 Lego Tire on 22969 Wheel -- The x1825 Lego tire sidwall slants a lot more on the inside of the 22969 wheel than it does on the outside:

The black-colored 44777 wheels that you pictured above are "Wheel 68.8 x 36 ZR Solid Smooth". The inside diameter of the Unimog's x1825 tires are (as stated previously) 56 mm. The 44777 tires only appeared on two Lego RC sets -- the 8376 (which I own) and 8366. Here are the pieces separately: I pried off the Unimog tire from its original 44772 wheel, and wrapped it around the 44777 wheel -- it works! I was surprised. Since there is no rim lip for the rubber to grab onto, one has to curl the edges of the tire inwards. The effect looks bizarre -- there is a big indentation where the rubber curls around the solid black wheel and it looks like two black tires stacked one upon another. The outer width of the tire matches the solid wheel perfectly, and the tire's outer diameter is 96mm. I will now try to put the Unimog tires on the 22969 wheels of the 8466 Off Roader (which I own too) -- stand by.... ...It fits! When the tire sits naturally on the INNERMOST rim, the outside diameter of the tire is 94mm but the outermost rim of the wheel is sticking out on both sides of the tire. There is no bulging or distortion of the rubber -- it's that the wheel is considerably WIDER than the tire. When I pry the rubber outwards to fit the OUTERMOST rim, the sidewalls of the tire are no longer vertical and the "contact patch" on the ground is dished-shaped inwards by about 2 mm. Nevertheless, the outside diameter of the tire is the same at 94 mm.

From Match #280 on the Bricklink "Tire on Wheel" Relationships webpage, one can see that the x1825 Unimog tire fits on the 44772 and 2998 wheels. The silver 22969 wheels (pictured above) are 62 mm diameter -- too big to fit the 56mm-Inside-Diameter Unimog tires.

[bUMP] Yoraish (Yorai Shaoul) has posted his Lego Technic ATC 6x6 Trial Truck on Technicmad's Rebrickable website.

[bUMP] Nico71 (Nicolas Lespour) has added "The Wave" Great Ball Contraption (GBC) module to Technicmad's Rebrickable website.

Cypr-21 (Cyprien Cattet) has added his Snow Blower and Spreader for the Lego Technic Unimog U400 to Technicmad's Rebrickable webpage. See more info about them on Cypr-21's website.

samsung51/ eggnog200021 posted 28 Flickr photos and a of this Lego Technic Mini Truck tractor-trailer combination. He used Power Functions and pneumatic elements, and BELT DRIVE on the rear axles of the tractor:

On his Brickshelf gallery, Barman (Barry Bosman) posted 9 ideas about future Lego "Parts to fit with pneumatic system." Here are some of them:

@ zewy623: Bricklink works great! On their Help Center webpage, there are answers to many of your questions. Most Bricklink stores accept Paypal or even cash. Try it -- you'll like it!