functionalTechnic
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Everything posted by functionalTechnic
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Thanks for the nice words and the front-page link. It is more and more difficult to model new generation trucks with round sections at the hut. First, I tried with panels and bionicals but in the end it worked for me best with half stud liftarms. The mudguards I copied partly from the dump truck but you are right it needs something round above the mudguards and this is the tricky part. Actually, I also like the 8x4 dump truck a lot because I like construction vehicles. But I think the 6x4 tractor unit has a lot of potential with the right trailers and lets many options open for creativity. Sure, the MAN TGS 6x4 is a convincing model with all the functions and clean hut built we system bricks. But this time I tried to built clean truck with Technic. Furthermore, the MAN looks clean from outside but I would be hard making instruction out of it, because it is a mess inside and I also used some illegal building techniques. The 6x4 tractor is almost a clean built inside and you can feel it when building it according to the building instruction. This was also the hardest part of the model to design and it need at least three versions. I'm glad you like it. Below the fifth wheel a rubber belt is installed. I hoped it looks more bad megablocks Yes, the result were some scratches. But the model is also not made to use it outside. As long as you use it inside it is now problem. Also, the real one has low ground clearance at the front. -
Is already realized by @HUWI: https://bricksafe.com/pages/Huwi/770s It works but guess it need some adustments because not alle parts in white are also available in red. Yes, I like it but tried to reduce the system parts to a minimum. But the front needed some. Thanks guys Me too and it saves a lot of space at the rear axles. I'm glad you like it and hope it helps with your models The gear ratio is 2.33:1 from the motor shaft to the axle. Actually, the gear reduction is only at the new diff
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Hi guys Recently, I finished another model. It is a tractor unit inspired by Scania S-Series trucks. It has 6x4 drive and suspended axles. The front axle is suspended with normal LEGO hard shock absorbers. The rear axles have rubber suspension which imitates air-suspension as used in real trucks. The suspension at the rear axles is a bit hard but chassis is in return flat. The fifth wheel as a self-locking mechanism so that you can couple a trailer easily. To open the fifth wheel a small linear actuator is used. For steering a PU L motor sits directly on the front axle. For propulsion I used two PU XL motors. But check the pictures and video: Instruction at Rebrickable: https://rebrickable.com/mocs/MOC-86508/FT-creations/6x4-tractor-unit-inspired-by-scania/#details
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Hi guys @Teo LEGO Technic saw your e-mail and thought it’s better to answer here. I disassembled the Unimog already a while ago. But I made some renders for you of the front axle if you still want to use it for your model. the steering angle is with Lego always a problem if you want to have propulsion in the front axle and that is due to the old and new cv-joints. You cannot change that but only if you use cardan joints. In my opinion cardan joints do not fit for steering in front axle because of the pivot point of the steering axle. In real cars the pivot point of the steering axle is close the middle of the tire if you look on the tire from above. With Lego it is normally outside of the tire like in my axle. with cardan joints it is even further away from the tire. Another problem my axle has is that you cannot use Lego wheel hubs if you want to have a portal axle and keep the pivot point of the steering axle close to the tire. Without a Lego wheel hub, the tire is more lose on the axle but turns better. Now everybody has to decide how you choose. The performance you can see in my video of the Unimog. Regarding how you can make diff-lock: With pneumatics it is easier on the axle but you need in the model a compressor and valve. With mechanics like in the Zetros form Lego it is much harder on the axle but easier in the model an you need only one motor. With pneumatics you need at least on motor if you use a auto-valve on otherwise two motors.
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do you mean why not all of xl motors have the same rpm at a given voltage? according to my experience the rpm differ depending on the generation of the motors. if you use sbrick the motor has more torque due to better power supply. the pf ir receiver cannot handle alot of amps. but this should not influence the rpm without load
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I hope you find a solution for your boom. is it not an option to connect cross axles with connectors, so you habe the right lengh of axle? Or is something slipin gover the axle?
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Yes, cleared some snow. For those how missed the video:
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Claas Torion, and same configuration of pneumatic cylinders. also mine placement of XL and pumps motors are the same, not intentional of course. Looks great. I'm looking forward to see your model completed.
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Check here. It is a bit hard to see. I hope I can do tomorrow picture of the real model.
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So what are you building then? Also a Wheel loader? Which linkage do you mean? Of the bucket?
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Yes, if you are purist the it is not an option. As already mentioned befor it may works with the Mindstorms 51515 hub and the PU motors. Maybe I will transform it one day but I think the mindstorm hub is still rather expensive. I saw your progress. It looks great. Waiting for the final result. You are wellcome and yes, more is not possible
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Hi Thanks for all your nice words about my model. great you like my MOC. Happy about this. What do you don't like about the Sbrick? Price? No we have PU but for this model PU elements are to big. Maybe it would work with the mindstroms 51515 hub. I love pneumatics but LA are better in many aspects. But here the LA hadn't fit in the front part. I'm also wating for more pneumatic LEGO Technic model. Everything is ready now, even for remote control pneumatic models thanks :) Check the picture: https://bricksafe.com/files/FT-creations/wheel-loader-inspired-by-volvo/volvo L120H_V35_wires_hoses.png Actually, the existing bucket linkage was not realy helpful. that was the hardest part the make it work. Somehow the bucket linkage of LEGO buckets are not made for compact builds. In my opinion there is no need for the new hubs. There is enough power coming from the PF XL motor. If you need more power you can still gear it to 3:1 in the hub. Now it is 1.66:1. realy deep analysis of the crank version in the valve system. never tought about this advantage. I like the small JCB loader. Is still assembled :) Shoveling arount bricks was the most fun part :)
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Hi, thanks. I geared down the PF servo motor. With a linear joystick at the gampad controller it the valve can be steered in small steps. check here:
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Hi everyone After one year I finished another MOC. Here I present my wheel loader inspired by Volvo wheel loader L120H with technic chassis and creator style body. The model is controlled by two Sbricks an powered by one small PF battery boy. The boom and the bucket are controlled with pneuamtic cylinders coupled to a geared servo motor with the newest pneumatic valves. Like this it is possible to control "heavy" loads precisely. Furthermore, the model has an auto compressor which is controlled via the BrickController2 app, where it is possible to add one port of the Sbrick (here the compressor) to two independent other functions (here the two servo motors with the valves). Like this the pump always switches on as soon as one of the pneumatic function is selected. But check the functionality in the following video: Instruction is available on rebrickable: https://rebrickable.com/mocs/MOC-64106/FT-creations/wheel-loader-inspired-by-volvo/#details
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I hope you can find sleep soon again. Im looking foreward to the Fastrac project. Why are you working with IR at your telehandler? Or did i got something wrong?
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What went wrong? Corona? The "leaf springs" only hold the axle in place and have therefore a similar function as real leaf springs. But, I use the short soft light blueish gray springs where in real trucks the shock absorber is mounted. Therefore, it is not a correct leaf spring suspension As Igor mentioned you can find infos on rebrickable but also somewhere here in the forum. But in short: it is a scale 1:16.5 JCB Telehandler controlled with two Sbrick (5 functions) and custom tires. For the instructions I used the old LEGO tires and the model works also with these tires very good although the tires sit on the wrong rims. Thanks
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I'm glad you like my telehandler. I like it too. But the Scania should be easier to build and should be more reliable. Next project is the Volvo L120H. Already started and should be similar to the telehandler in regards of speed and maneuverabilitiy.
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Thanks. Batterybox is a bit chunky but over all I think it fits. The other option was used by @huwi Anyhow, the hub fits much better than the PF batterybox. I'm realyy happy about the tail gate mechanism. Also used it in a similar way at the mack anthem dump truck and the MAN TGS 6x4 with crane and dumper. @huwi may dumper is not as strong as Huwis dumper but it can also dump a ful dumper of 1x1 round bricks. If you mount the tumper 1 stud higher then it is even stonger. But I wanted to have a stright line with the lower cabine edge. This was the goal.
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Hi This weekend I could finsish the 8x4 dump truck project which I started somewhen in February. It is a simple 8x4 dump truck inspired by Scania G450XT. The functions are driving, steering, dumping and automatic tail gate locking. Everthing is controlled via Powered Up. I control the model with the brickcontroller2 app. For propulsion I used 2 x PU L motors and for steering and dumping one PU L Motor. I'm really happy with the PU system. For this moc it works great and the model is powerful. At the front axle I developed a new supension system. it is inspired by leave spring systems. However, there are no leave springs since I haven't found a proper solution for LEGO. Anyhow, the suspension works great. The model is built in scale 1:16.5 and fits to my telehandler and other mocs and Technic sets (42043)
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I think so. But manly, the mechanical levers are optimized. But it can also depend on each cylinder. Not all are sliding equally. But there are also disadvantages: You need more tubing and the joint where the bucket is fixed on the arm oscillates I think so. But manly, the mechanical levers are optimized. But it can also depend on each cylinder. Not all are sliding equally. But there are also disadvantages: You need more tubing and the joint where the bucket is fixed on the arm oscillates worse due to the resistance of the pneumatic hoses. Furthermore, the timing of the both cylinders can be off if the resistance is not the same in both cylinders since the air always goes the way with the lowest resistance.
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For my taste the bucket of 42043 was not powerful enough. therefore, i use in this moc two cylinders. furtheremore, it was easier to build like this.
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You can find the pictures now here: https://bricksafe.com/pages/FT-creations/man-tgs-6x4-with-bucket-gripper
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I will make some pictures soon (next week)
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Many thanks to berlin Actually, the cran ist not so heavy and also a bucket full of roundbricks is light. It also helps, that the main ram is a LA. I developed a mechanical solution for this problem: It is option 3 in the video:
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This is the case. it is full of motors. Here an other video, where you can see a bit of the mechanics: