grindinggears

2 years ago I have tried to build a hydraulic system as well. You can see my results here: http://www.eurobrick...439#entry913070 Sadly I'm not MOCing anymore as my new job doesn't give me enough free time for yet another activity. So I come here every few months to see what great new MOCs have been created while I was working. Let's see what you can do with these Lego hydraulics!

I am using TOR to solve that GEMA issue. Simply install TOR by downloading and installing Vidalia. When TOR is running start Firefox and there should the Torbutton appear which activates TOR. Now there are 4 steps to do: Copy the Youtube-URL in the adress bar. Activate TOR by clicking the Torbutton. Hit Enter to load the page. When the first parts of the YT-site appear, deactivate TOR. Now the video should play with full connection speed. The YT-site will appear in the language of your TOR-exit-node. If this node is unfortunately in Germany, open Vidalia and click the new identity-button. I hope this solution will also work for you, efferman and freakwave. (Of course there are many other ways, but I think this is the easiest for people who don't know too much about proxies) If you have problems, feel free to contact me.

Awesome work, Coen, absolutely gigantonomous! You could solve your battery problem by using RC battery packs. About a year ago someone from the Netherlands (I don#t remember his name) modded an 8043 Excavator to use an 11.1V battery pack. Maybe someone here can bring up this thread? Those RC-batteries can deliver high currents of more than 10 Amps so three or four of them might be enough to power the whole tank. Remember that all Lego PF components, especially the receivers are made for 9V, so you are working out of specs and you don't get an Lego Purist approved model. But I haven't heard of any components that quit their job because of that overvolting. Please share with us the progress of your tank, looks really appealing! edit: Thank you so much, DLuders, this was the thread I was looking for. I wonder whether rien is still building LEGO, he hasn't showed up here recently.

This monster would earn the word massive a hundred times more than that tiny mining truck! I hope the boom is sturdy, all these panels look promising. Maybe you can make a third section? Your LAs seem to be the biggest ever made. Using turntables for the joints is a good idea. Do they work well or do they need a little more engineering? Keep up this great work! BTW: That thing should have an own thread!

Oh, JunkstyleGio has beaten me! ------ Google does:

Looks like a lot of fun! Can it do a wheelie? And would you please make a video of that thing in motion?

You can control the PF functions via this HiTechnic sensor Controlling twenty motors for driving and ten for steering sounds mad to me. How about building multiple trucks (maybe simpler ones) and putting one NXT in each of them. Then you can implement swarm features like the roadtrain capability of the ETF mining truck Realizing this swarm behaviour without those connection bars will be a real challenge for your programming skills!

Whoa! I'm surprised how much has been posted here. All of this looks very promising. I am sure we will have the finished MOC in about a month :thumbup: So let me post what I have built so far: I think we should stick to the small-sized 62.4 wheels to not let the model get too large. To get The oscillating axle I used a wormgear combination on a rigid axle. This causes a lot of stress when steering, so steering might need some crazy leverage between the axle units driven by an LA. I have used double bevel gears at an angle like zblj did in his Trial Truck 8. Unfortunately the gears jump over under very high torque so here is a lot of work to do. More pictures will be available here in a few days. You have to remove the slash/ at the end of the image-url. This is how I got those pics inside my post

blakbird, you definitely have to start the MOCopedia! There are so many MOCs that deserve to be presented in detail and your renders do a lot to my fascination for RoscoPC's models

Excellent car. I like the side mirrors most... and all those sophisticated angles, of course

Hi everyone, I found a site that seems to be a virtual exhibition for construction equipment and other heavy vehicles. Here is a link to the construction equipment section: http://www.directindustry.com/cat/equipment-construction-civil-engineering-mining-AR.html There are two vehicles I want to highlight because I think they are excellent inspirations for builders looking for new ideas: First a mining truck that takes a completely different approach on hauling things than the big two-axle trucks. Each axle unit has two wheels attached to an oscillating sub-axle. The whole unit can be turned for steering and it is suspended and driven. The dumping bed is lifted by hydraulic pistons attached to a special leverage. That one looks really useful! The second model is an amphibious excavator (don't miss the video!). I have never seen something like this. Neither in reality nor in lego. We definitely need more weird contraptions and lego provides us with the advantage of building them at low cost. I hope someone got a 'click!' and maybe is able to build the axle unit (I tried but didn't get a compact solution) or even the whole mining truck. Or just browse a little on the page and look for new inspiration.

Congrulations to your MOC. I hope you will win that contest! Having three functions of which one is rotation of the turret means that you have to transfer two functions through one turntable. I can't see your solution exactly but it looks like you transmit the second function coaxial to the first which is the most common way of doing that. You can reduce the slack in the transmission by using one differential inside the turntable. Greetings from Greifswald!

Your brickshelf folder got moderated today. Here is one pic: I like how you implemented the steering by leaning idea with a motorization. You could improve the steered axles by using one joint per wheel so they turn in place. Then it only needs some upperwork, remember to keep all heavy stuff in the lower section. @Paul Yeah, you must be right. I don't know what it exactly was but I remember that 8226 was mentioned half a year ago as the first set of a designer who still works for the Technic team. But considering the fact that he was recruited about 7 years later it is obvious that it wasn't Nathanael.

Thanks for the response gjpauler, a modular water-tight hull is an inspiring idea. I didn't know that LEGO has already produced something like this before but maybe it's time for them to face a more advanced approach. I have picked the most interesting features of your concept in the quote above. Let me explain how I look at them from the perspective of a Technic fan: I want to make motorized ships which are remote controlled so what I need is a good protection of the electrical parts from water. So it would be best if the hull modules have a top plate and thus form a watertight box when connected to a hull. Maybe you can even make a motorized submarine with this concept... We need maximum stability, so there has to be heavy ballast in the keel section. Integrating one or two battery boxes in the keel sounds nice but maybe we need even more weight. For Technic purposes the ships don't need to be longer than 60cm and I could live with a simple design that doesn't look too realistic. Most important are the propeller shafts. They would be sooo great. Lego should also include some technic holes on the outside of the hull so we can build custom propeller layouts We will see if LEGO has some interest in this idea. They could make a set with a simple modular hull with some nice upperwork and we could later elongate it and use the internal space of the hull sections for motorization. Another thing that we need for this to happen is Radio control of the PF components to not lose the signal in the middle of a pond.

@allanp That rotary pneumatic actuator would be really nice for hard to reach places like winches on a crane arm, driving function for suspended wheels, etc. Good idea!

I haven't seen your model but your idea to do steering by leaning is not so mad. Look at this set from 1998. (I think it's designed by Nathanael Kuipers) The steering joints are angled and thus react to the leaning of the vehicle.

You can't make a micro-heli out of Lego bricks. You need special parts which are as light as possible, just read sariel's posts to get an idea how heavy lego bricks are and how light a micro-heli which isn't too dangerous must be. The biggest concern I have when building a Lego helicopter (probably with custom motors) is the rotor. Just think of the huge centrifugal forces occuring there and when you hit anything the rotor will transform to a mass of bricks flying through your room with the speed of a bullet. You really think this will be safe? Better talk about boats: What do you think about an accurately modelled hull that isn't waterproof but contains vast amounts of balloons, styrofoam, ping pong balls, etc. Such a ship would look good when exhibited but also would be able to float on water. It could be motorized if you place all electrical components above the waterline.

Best Trial Truck ever? Congratulations, zblj! You're a genius All functions work very well, I especially like the suspension. It looks so real! Maybe you can take time to make a more detailed cab. I am sure that the chassis will handle the additional weight with ease And of course we need MANY pics of all the mechanisms of your truck

What a pity. They get the Unimog so early and then they fail to pick the right differential Thanks allanp and Anio, I was asking myself the same question and I am happy to see the solution now. @Anio I can understand what you man by unfinished design when it comes to the gearbox. Maybe Comunidade 0937 made another mistake and the original version will be more clean and sturdy? Can you get a deal with Peek&Poke for the Unimog like you did for the 8043?

Great Pics! Thank you very much! We had a discussion about the pneumatic compressor. It seems like it uses the standard pump in an new color but not a longer one. Still it should be sufficient for the crane because it uses the full stroke of the pump. The suspension is built by encapsulating a standard 3L U-Joint in two half spheres which form a strong and flexible link. I am surprised to see such a sophisticated suspension (Torque-tube, Panhard Link, 2 shock absorbers) and I am sure you will agree that this is the best LEGO ever designed and possibly we will have to wait a long time to see something similar in future official models. The wheel hubs seem strong and will offer new possibilities for mounting wheels to extremely heavy models. They will also get a standard part in trucktrial, making it much easier for a newcomer to build a well-performing model. There is only one thing I don't understand: How is the torque transferred from the mid-differential to the axle that is linked to the motor? @Anio All the new parts offer so many new ways to use them that you shouldn't call them a necessity for a bad designed product. In fact the Unimog is a masterpiece of LEGO's product design even if the PTOs need diagonal axles.

@ Dutch_EE To me it looks like 20t is the biggest possible gear size but still you can be right too and I honestly wish you are IMO you're right. Your hubs offer the maximum gear reduction (8t-24t) with double bracing in a smaller space. We'll see which strong points the LEGO solution has to offer. I'm quite disappointed that it needs so many thin 2L liftarms, wasn't there a cleaner solution?

The SLS is clearly my favorite for the next MB set. Are there any MOCs of it so far?

@suiye921 and scooby136 Thank you very much for these pics! I wonder why they didn't use a gear reduction inside the hubs and I doubt that a 8t-24t gear combination might fit in there Still this is a useful part and maybe I will be proven wrong (hopefully). How do you think are the U-Joints made? They would only fit in if there is no double-bracing for the upper gear in the new part.

An air tank drives the rear axle? Maybe this is a new pneumatic element which transforms air pressure to rotary motion (like a miniature LPE) Think of all the new possibilities!!! Don't take me serious, I still think it is a CV/U-joint that forms the torque tube suspension edit: zblj, which element do you mean?

Indeed it looks bigger than normal, ~7 studs in length while the normal pump is just 5.5 studs long. Where is the hose attached? The marking looks really unfamiliar to me, maybe it's the first sticker applied to a pneumatic piston/pump; or is it a prototype? Seems like our parts assortment for big and strong vehicles gets quite a decent plus this year :thumbup: