DLuders

@ jorgeopesi: Have you seen Sariel's Subtractor webpage? He has several different designs and lots of pictures. If you use one Power Functions XL motor, you will have to adjust the gear ratio of the (remaining) PF Medium motor if you want your creation to move in an arc: "Subtractor is an effective and easy to steer drivetrain system for tracked vehicles. Basically, it allows to steer a tracked vehicle like a regular car: one motor drives it forward/backward, and the other makes it turn. It can be used as an advantage, by using a more powerful motor to drive, and a less powerful one to steer. An unique feature of a subtractor is the possibility to use both motors at once, and thus to make the vehicle turn in an arch. The arch can be calibrated by choosing a specific gear ratio for the steering motor."

[bUMP] PAHAB (the "Partially Autonomous Humanoid Android Bot) has recently added legs to become a full-size robot! You can see the five images on shutinc's Flickr photoset. "He is as tall as a human being (170cm) [~67 inches, or 5 feet 7 inches tall]." It has: "1 NXT 3 motors 6 PF motors 1 Sound brick 2 US sensors. Can detect whether you're standing on the left or right side of it."

You could insert the 8869 Power Functions Pole Reverser Switch in between the PF Receiver Battery Box and the PF Medium motor. If you move the Pole Reverser Switch to its center (neutral) position, the PF Medium motor should not run.

bazmarc posted this about home-schooled kids having a 2-hour opportunity to "Meet The Robots (LEGO Mindstorms NXT)". He wrote, "http://www.montrealhomelearners.ca/ invited me to demonstrate my fleet of robots, from WALL-E 5.3 to Brickbot 1x1. They where all there interacting with the kids from 1pm to 3pm Friday April 6, 2012 @ Centre Communidée in Montreal [Canada] -- For more info on Home Schooling in Montreal, please contact Sonya Olthof -- communidée.ca sonya.o@gmail.com ."

@ 88high: On your silent YouTube video, you wrote a rhetorical question, "with dual RC motors, they don't have enough torque. Should I go back to a [Power Functions] XL [motor]?" Yes, you should because (1) The PF XL motor has over three times as much "stalled torque" as the RC Buggy Motor, (2) The PF XL motor does not draw nearly as much current as the power-hungry RC Buggy Motor does, and (3) The PF XL motor is far more compact. http://www.youtube.com/watch?v=FK_kCTVeJw8

@ 88high: On Philo's "LEGO 9V Technic Motors Compared Characteristics" webpage, Philipple Hurbain wrote, "The [RC Buggy Motor's] innermost shaft hole is geared up by a 23/17 factor. Only the outermost output is tested below." The RC Buggy Motor has a "stalled torque" of 12 Newton-centimeters (N.cm), which the Power Functions XL Motor has a stalled torque of 40 N.m (over 3 times greater). To get that torque, (with no load) the PF XL Motor only rotates at 220 rpm while the RC Buggy Motor rotates at 1,300 rpm. Perhaps you should consider getting Crowkillers' (Paul Boratko's) Transmission Instructions (via his website or eBay) -- "2 sets of Instructions Available for both the 5-Speed and All Wheel Drive with Reverse Versions with Full Parts lists for both Models. You will get both sets of instructions with Parts list for only $10": "Instructions were Prepared by Eric Albrecht." (Blakbird) "These Transmissions will make great conversation Pieces, perfect for demonstrating how Gearboxes work, or even installing into your very own Custom Lego Supercar! Transmission #1 -- 5 Speed Transmission with Reverse: This fully functional Transmission follows this Shift Pattern: R 2 4 1 3 5 Gear ratios are as Follows: Reverse 1.66 : 1 1st Gear 1.11 : 1 2nd Gear 1 : 1 3rd Gear .66 : 1 4th Gear .60 : 1 5th Gear .40 : 1 Transmission #2 -- All Wheel Drive 5 Speed with Reverse: This fully functual Gearbox follows this Shift Pattern: 1 3 5 2 4 R Gear Ratios are as Follows: 1st Gear 2.08 : 1 2nd Gear 1.60 : 1 3rd Gear 1.25 : 1 4th Gear 1 : 1 5th Gear .75 : 1 Reverse 2.25 : 1"

Here is 88high's original topic about his Supercar project. There were no pictures of his car there either.

On MOCpages, Berhard Mollema posted 13 pictures of a motorized version of Nico71's Trial Crawler. He wrote, "Nico71's new crawler is excellent and I saw a change to turn the back axis into a steering axis. Also check http://www.nico71.fr/ So 1 xL motor for driving and 2 motors for steering."

@ TechnicFreak: You can download the original Lego Technic 8428 / 8432 Turbo Command / Supersonic Car PDF Building Instructions (as well as the 8428 Turbo Command User Guide from the CD-ROM) via SkyDrive -- see the hyperlinks below. You can also download the PDF instructions for the alternates "D" and "E" Concept Cars that Yoshi648 compiled -- see this Eurobricks topic. Lego Technic 8428-8432 PDF Building Instructions (4.75 MB) Lego Technic 8428 Turbo Command PDF User Guide from CD-ROM (4.45 MB) Alternate "D" Concept Car PDF Building Instructions for Lego Technic 8428-8432 (1.7 MB) Alternate "E" Concept Car PDF Building Instructions for Lego Technic 8429-8432 (1.1 MB) On his YouTube channel, sebykos / seby has posted 5 videos of all 5 versions of the Lego Technic 8428 / 8432 set. Here are two of them (the maximum allowed per Eurobricks post): "Accelerator" Model C: "Scorcher" Model D: On this Eurobricks post, seby wrote: "Hello Guys, I wanted the building instructions for the alternate models for a long time ago. Since 1999 i own the 8432 set which didn't include the CD-ROM. Theese days I managed to find these CD images on this site: http://www.brickfactory.info/iso/index.html . [NOTE: This Brickfactory webpage has MANY of various Lego sets' CD-ROM contents available for download in zip files. Recommend checking this webpage out and "Bookmarking" it for future reference. The 8428 Turbo Command CD-ROM #1 zip file is 400 MB, and CD-ROM #2 zip file is 600 MB! ] So I built the "Accelerator" (model 1) which doesn't have instructions here yet, and then, because the instructions are in fact video files, i thought it would be nice to upload the instructions on youtube, to share them with you and anyone who needs them. These are the links: Model C Model D Model E Also I posted the instructions for the two main models: Model A Model B "

Cool MOC!

@ Bigfoot: On this TechnicBRICKS topic, Fernando Correia discussed the "Panhard Rod" suspension issue that causes the body to lean by 1/2 stud. Do a "CTL-F" key combination to search for the term "Panhard" to find it in the middle of that LONG article. He wrote, "Still related with the usage of the Panhard rod in this model, there is a discussion running at EB, regarding a potential flaw or a mistake in the building instructions. It happens that the front and rear axles are built slightly different, leading to a small misalignment on the chassis, what may eventually avoid the model to drive perfectly straight, if it gets motorized. In fact it is just an half stud misalignment, but it can be clearly seen on the photo bellow. There you can see the difference from the axle 3 with stud, in dark tan. The stud is totally visible on the left side but almost hidden on the right side. The difference is also visible from the towballs present on the top of the portal axles, but not so easy to realize from the photo below... Obviously this can be seen better, on the real model. "The difference occurs because the lower end of the Panhard rod, is connected to the axles in two different ways or using two different parts. A perpendicular axlehole and pin connector (6536) on the Unimog rear axle (left photo) and a perpendicular double axlehole and pin connector (32291) on the front axle (right photo). While the correct way seems to be the one used for the rear side, the front method causes an half stud offset to the live axle making it not straight. At first sight this seems to be an obvious mistake, but until further confirmation there is still a possibility for this to be an intentional design, to compensate some potential dynamics of this model. "If it confirms to be a mistake [which it HAS NOT], it is one of easy resolution. You just need to replace the connector on the front with the correct one."

That would be Blakbird (a.k.a. Eric Albrecht, the "Technic Angel of Retribution" ) -- he owns EVERY Lego Technic set every released! His Blakbird's Technicopedia website is a great reference.

To provide some context to this topic, SNIPE is trying to make a "Rollcage Car" (presented on this Eurobricks topic). The car will be able to drive upside-down, and the direction of original travel will be maintained. The car will be LOW so that the wheels can contact the ground (whether upside-down or not). SO, the Steering Rack problem needs to be COMPACT so that the "Rollcage Car" can flip over, change the wheel rotation, and continue to drive in the original direction.

@ sama: I'm looking at my 9397 Logging Truck, and you're right -- it does sag a bit underneath the Battery Box. No, the sagging does not affect the function of the truck at all. I'm looking at the underside of the truck, and the area underneath the Battery Box is REALLY CONGESTED with liftarms, so there's really not any room to add additional bracing. Of the several modifications to the 9397 presented on this Eurobricks Technic Forum over the past ~2 months, nobody has added additional bracing that I'm aware of.

@ DarkSurgeXL: I made this search of "9398" topics of the upcoming (2H2012) 9398 4x4 Crawler set on TechnicBRICKS. You can read the "Comments" portion below each topic to see past discussion about it.

OK, I got it to download by "right-clicking" on the green Download box, and then doing a "Save Target As". Yes, Hispabrick is a great asset to the Lego community!

I added my CUUSOO support just now. Maybe the Japanese "Tachikoma" name will catch on. Heck, if the Japanese can garner 10,000+ votes for the two models below, the Tachikoma could get far more!

Nice car! It looks like a compact black Lamborghini. Zblj's hyperlink to the Lego Digital Designer (LDD) .lxf Building Instructions file did not translate in his original post, so here it is (from the description to his ):Download LDD file: http://www.brickshelf.com/gallery/zblj/MuscleCar/muscle_car.lxf . Using LDD Manager, I created a PDF Parts List for the Muscle Car; you can download it here via SkyDrive.

@ Porty: I think the checkout cashier at your Toys-R-Us goofed up!

I'm in the USA trying to download the 34.86-MB English version, but nothing happens when I click the "Download" button. Is anybody else having that same problem on that Mediafire.com webpage?

@ xikin: All of the parts you need to build Paul Boratko's Lego Technic Lamborghini Gallardo are listed on this Rebrickable.com webpage. A link to the PDF instructions is there too. Switch any red-colored part to yellow, and you're all set.

@ technicfan: Your question is off-topic, but you are probably looking for the 57518 "Technic, Link Tread Wide with Two Pin Holes". TRAINS run on "tracks" -- bulldozers and tanks run on TREADS.

@ Porty: The fine print (under the LEGO logo on this Toys-R-Us webpage) says that the BOGO sale does not apply to Lego Technic. "Buy 1 Get 1 50% off -- ALL LEGO Construction Sets & Board Games (excludes Star Wars, Super Heroes, Friends, Technic & Ninjago)".

@ Lipko: You could use a Power Functions Adapter Cable and a Train Speed Regulator, like Sariel does in his : The main article is on TechnicBRICKS: http://technicbricks.blogspot.com/2009/05/tbs-techtips-23-connecting-pf-receiver.html . The 8878 Power Functions Rechargeable Battery Box has these dimensions: 4 studs wide x 8 studs long x 5 studs high. Sariel has an excellent of the 8878 battery box: From his main article on his website, Sariel wrote: "The [integrated speed] dial offers 7 forward and 7 reverse speeds just like the 8879 Speed Control Remote does, but here it has fixed neutral and extreme positions, plus a small position indicator. An axle can be put inside it a single stud deep, just like with PF XL and Medium motors. The dial does not return to a neutral position, and operates regardless of the master button – which means that the box can be turned on or off at any dial’s position. This is a pretty comfortable solution if someone doesn’t really need the integrated speed dial (which will be probably the case of almost all mobile remote-controlled PF-powered constructions)."

I thought that the Eurobricks moderators were just "going overboard" with their jokes yesterday, but now it does look like Eurobricks has been hacked. I would suggest that everyone "PREVIEW POST" before they add a new Reply or Topic. That way, you can weed-out the gibberish. You may have to spell certain words out with hyphens (or double-hyphens) in between the words, like this: L-I-K-E_T-H-I-S.