DLuders

@ Nazgarot: Nico71 used his Mechanical Calculator in this Great Ball Contraption (GBC) . It is a "A counter for Fanabrique 2010. 5 digits (one is missing) with a 6t wheel connected to a 12/20 reduction to provide rotation of counter. Each digit is connected with 1/10 reduction. The system is very accurate because there is only one direction of rotation, so no dead point. I put a linear clutch on M-motor and on other to synchronise the wheel and the counter. http://www.nico71.fr/gbc-counter-marble-counter/ ."

neomomonga made this of his 6-shot pneumatic Gattling Gun attachment for his Lego 8110 Unimog U400 set:

It can do "donuts" real well! Are you planning on making LDD building instructions for it sometime?

@ Jochen: Your Brickshelf pictures are "Not Yet Public", and it may be several days before they are moderated. In the meantime, could you "Deeplink" your pictures so that we may see them? Here are the instructions how.

@ Zblj: On his website, Yoraish explains his decision to use both Power Functions and NXT elements: "By the time I finished the actual building I faced the problem of control. I set up a Power Functions regular IR connection and it worked just fine. But “just fine” is not enough. I usually drive my creations outdoors, and as you may know the sun messes a lot with IR. Because where I live we have plenty of sun, I decided to give up IR, and go with bluetooth. That means NXT. The new solution meant new problems to me. The ideal solution for me is to give each driving motor its own port (so it will have the maximum amount of power), give the steering motor one port and the 2 motors that controlled the shifting mechanisms one port as well. The thing was that the NXT brick has 3 motor ports and I needed 4. Now listen carefully, my solution was like this: I hooked one NXT motor to a PF switch that controls the 2 XL propulsion motors which are powered by a PF battery box. The other 2 functions have been controlled straight from the NXT."

@ Alasdair Ryan: You can go to your local store and get some Silicone Sealant to make your custom-fitted gasket seal.

I'm an American with English as my native language, and I agree with this online dictionary definition of the word "fan": "Fan -- an enthusiastic devotee, follower, or admirer of a sport, pastime, celebrity, etc.; a baseball fan. Origin: 1885–90, Americanism; short for "fanatic". Synonyms: supporter, enthusiast, partisan, booster, addict." We are definitely "fanatics"!

@ Solozaur: Are you using the 8885 "Power Functions IR Remote Control" or the 8879 "Power Functions IR Speed Remote Control"? The second one is really suited only for Lego Trains, and the Infrared signal frequently "cuts out" when trying to control Lego vehicles in a precise way. No, it is not normal to have a one-second delay -- see the Frequently-Asked Questions (FAQ) on the official Lego Power Functions website.

I have heard that the RED Technic Bushes are made of a more-brittle plastic than the Light Bluish Gray ("bley") Technic Bushes. The Light Gray bushes or Light Gray half-bushes are from older sets and are probably USED (not new), so I would use the (newer) Light Bluish Gray version. The newer plastic formulations are probably the most resilient. While the Technic Bushes are made from ABS, the Technic Axles are made from a different plastic. If you buy them "new", you will ensure that you will get maximum fatigue life.

I like how you solved the problem of fitting the Power Functions XL motor in the rear axle area. It's a good idea that you eliminated the "weakest link" (the Universal Joints) in your design:

Yes, I have used Znap beams. Lego Technic pins fit inside the pinholes. I like the green 32216 "Znap Beam 16, 14 Holes, Curved" piece pictured below. There is a brief explanation about Znap on this Wikipedia article, where it says "Znap is a Lego theme that was produced from 1998-1999. It is similar to K'nex and can also be used to build objects in a frame-like way. The plastic it is made of is slightly flexible yet strong....Bridges and structures using Znap are often integrated into train layouts at shows. One challenge of doing so is that different parts came in different colors, and certain key connector parts were available only in strange colors, like purple, making uniform color bridges difficult to construct."

On , SpeeedErik filmed his Lego Technic "truggies" (truck/buggies) jumping in slow-motion:

Actually, it is part of a rigorous scientific experiment for our friend here:

[bUMP] ritsemacool added this YouTube video of a Lego Technic 8297 Off-Roader crashing onto its top: http://www.youtube.com/watch?v=-i63iBS3Xrs

[bUMP] For his Lego Technic Mini-Truck Petra 3 6x6, kiko97 has added a Lego Digital Designer (LDD) .lxf Building Instruction file to his Brickshelf folder: [LDD File] [PDF Parts List] He also has a Lego Technic Mini Truck Petra 5 8x8 LDD .lxf file: [LDD File] [PDF Parts List]

@ Alasdair Ryan: You can see Tomik's alternate building instructions on his website here.

I would get the Lego 10219 Maersk Train set soon. From the Shop.Lego.com description of the set, note that the product is licensed from the A.P. Moller Maersk Group (while the generic Emerald Night set is not licensed). If sales are low and the license costs a lot to renew each year, perhaps the Lego Maersk train set will not have a 3-year production run. Also, the "Maersk Blue" brick color is quite rare -- they are in demand for making MOCs with a "Baby Blue" color. Tell Santa Claus to bring you a train!

solde/ solde1 posted this of his Lego Technic Boxster Turbo engine (used in Porsches). This model is a Flat-4, to simulate the Boxster's Flat 6 engine. With gearing, it can rev up to 6,000 RPMs! I wonder if there is a small pile of plastic dust beneath this engine....

haRtV70R posted this YouTube video of his big Lego Technic Demag AC 700 crane, featuring full Power Functions (PF). He wrote, "This is a first preview of my big Lego project, a full remote-control Demag AC 700 in scale 1:15.5!! 9 axles, 8 steering, 2 for drive (axle 6+7). Driven by 2 XL motors, steering with 1 M-motor. For all the functions of the complete model I need 18 m-motors and 2x XL-motors, 10 receivers, 4 battery boxes and about 20 kg of Lego!! Will be continued!" http://www.youtube.com/watch?v=RRc3ota097w

Here are some more of LegoTechnicModel05's alternate Building Instructions in PDF form (via SkyDrive): 8258C Tow Truck alternate -- [PDF Link]: 8109C Pickup+Crane alternate -- [PDF Link]:

[bUMP] Xander reports on his Bot Bench website that "Rotacaster wheels now available from HiTechnic" "HiTechnic have started selling the Rotacaster wheels now as well. That’s great news for people who live State-side. Now you won’t have to worry about US customs intercepting your nice wheels and using them for something themselves. "HiTechnic is selling them in packs of two and you can get right here: [LINK]. They plan to have cool models up on their Models page soon, so make sure you keep an eye on there! If you don’t want to wait and you have a set of 4 of those wheels already, I can heartily recommend you make the IR RC Kart with them, it’s a serious drift-fest. I made one ages ago and it’s always a big hit at the LEGO events, kids (young ones and adult ones) love playing with it."

@ seby: Welcome to Eurobricks! I like your five YouTube videos -- they are very clear and easy to understand. Thanks for sharing them!

Here is another perspective of the 1H2012 9392 set's alternate model (from The Scooter Guy's Flickr photostream):

[bUMP] On his YouTube channel, sebykos has posted 5 videos of all 5 versions of the Lego Technic 8428 / 8432 set. Here are two of them: "Accelerator" Model C: "Scorcher" Model D:

Over on TechnicBRICKS, Conchas has issued a "TechREVERSE 2011 Challenge" to build the 1H2012 9392 Quad Bike set: Prizes are being offered!