Akassin

Many thanks to everyone for the feedback. I'm very glad you liked it. Yes, I planned to do so and it was on my to-do list in the first post. But in the middle of construction, I had to change the concept due to several reasons: 1) all pneumatic control is in the back, and it was not easy to run even 4 hoses in such a small model, and to run 6 would be a big problem (the width of the inside is only 3 studs) 2) as you said - this would lead to a problem with the rotation of the grip. And now it rotates 360 degrees 3) I remember being disappointed with the way the bucket worked in the 42043 set. The pneumatics can lift quite a lot of weight, but cannot close the bucket if even a small object gets between its parts. And I wanted this model to be playable and to be able to capture logs that lie in several levels on the trailer. The actuator does it perfectly, the pneumatic does not, unfortunately. 4) I only had 2 small pneumatic cylinders and would have to choose between the tilt function of the boom and the opening of the grapple - the choice was made

Thanks for the comment. After changing the boom, it became a little smaller than I originally planned. The minimum box in which it can fit if the boom is lowered to the ground is 7524 studs (33x12x19) In the "normal" position, when the boom is slightly raised and he can ride - 8712 (33x12x22). About the color - I could add yellow rims to the wheels, but I didn't like this solution, in this case you need to do the whole body in yellow. I have a lot of red parts, but then I need to replace all the 15100 pins, because I don't have them in red and I'm not very sure about the red-yellow-black combination here is a photo during the assembly process when I tried the yellow wheels:

Looks beautiful. It resembles a set of Lego City because the two most visible parts (boom and cockpit) are made entirely of system parts. But I'm not suggesting changing anything.

The model is finished. Later I will take a photo in nature and possibly a video.

great look and function. Really like

looks like a scale model made of casting. Incredible!

yes, these new switches from 42128 are very useful. Great bucket lift!

Again, I had to make changes to the design of the claws. It all started with the fact that I could not use the axles to connect the 8t gear to the claws. Because the gears of opposite claws will always be rotated relative to each other at a different angle. Because of this, the claws had a different angle of rotation. I was hoping to solve this problem with a 6L Bar (63965). Then it would be possible to align the opposite parts of the claws with each other. This is exactly what I did in the previous version. But under load, the claws began to rotate about the axis. As a result, I completely abandoned the use of gears and decided to use an actuator. Yes, unfortunately the new design is not so compact and simple. But it provides symmetry and works well. Unfortunately I don't have the yellow parts. But I think it is possible to build it entirely in yellow.

Good start. I would try the rectangular shape of the headlights with bevels. It would be interesting to see a manipulator or a timber truck with a crane.

The width of 13 studs looks more proportional. Are you using some real crane model as an example, or is it a sample image of a mobile crane? I look forward to continuing

It's just incredible . A helicopter with all the mechanics working properly - is the last thing you'd expect to see as a B-model of supercar set. At the same time, the appearance is beautiful .

good MOC and I like the choice of color, after the "standard" yellow it looks very interesting . I think you are too self-critical, especially if all the functions really work perfectly, which is very important for a crane model

So the construct is almost complete. Only minor decorative changes remain. The final size of the box is 8400 studs. The sharp-angle version of the boom will remain final. Because part 24121 was too big for this scale. Finished building the claws. Claws rotate 360 degrees. Rotation and opening are controlled by two knobs. I also strengthened the bottom of the boom. At the moment, the natural model is also fully built. It remains only to cut the hoses of the large pneumatic cylinders to the required length and lay them inside the machine. Checked the performance of all pneumatics. Works great even with a load. The power reserve is quite large. here is a photo of the current progress. For comparison, how small the model is - I put the wheel from the 42082 set next to it. When warm sunny days come, I will do a photo shoot in nature and prepare the final photos for the competition. I hope you will enjoy.

Thanks everyone for the feedback I was not happy with the fact that the back side was quite fragile, especially the attachment points of the system parts (they could wobble and break off under load). Therefore, I completely disassembled the model, made changes and photographed several stages of assembly. Now the model can be taken by any part and it can withstand its own weight. Now you can see where the switches will be and how the pneumatic hoses will be laid (3 hoses will be laid at the bottom, 1 in the central area) An additional unplanned function has also appeared - opening the lid

This competition continues to amaze me! Wow! Hope you make a video to show how it works.

Thanks for the link. This will help a lot! Now I'm only worried about one part - 32039, which SaperPL wrote about. The rest of the boom is very strong, it can withstand the weight of the tractor itself without bending, if you raise it. Unfortunately, there was not enough space for this. The pump and pneumatic hoses occupy every free stud inside. This is the first thing I worried about when designing the boom. And I was almost sure that their power would not be enough. But I attached a weight approximately equal to the weight of the claws to the end of the boom, and the pneumatics did it! After that, I moved the attachment points several times, so the final test can be done after the build is completed, but I hope everything will work correctly. They are already installed

Thanks for the advice, I'll think about it and test the boom under load. I agree that such a connection is not very strong. There's only one reason why I did it. I need the cylinder attachment point to be as close as possible to the technical panel. Even if you move it just one stud, it greatly affects the height of the boom.

It's incredible that such a small model is motorized. And I like your solution for holding the bucket angle!

this is probably the most unexpected type of construction machine for this small scale, but it is a very ingenious solution! It will be interesting to see the result!

Thanks for your feedback and comments friends. Started working on the boom. For this machine, different generations of the boom looked different. Past versions had a sharp corner: The latest version received a smooth boom curve. I have not yet decided which version I will do. I still have a lot of time, so I'll make both and see which one looks better on this small scale. In any case, the difference will be only in appearance. The attachment points and placement of the pneumatic cylinders will remain unchanged. I decided to start with the old version. Now the boom has the following range of movement: The front end is not finished yet, only the mounting points for the cylinders have been determined. At the moment, the real model completely repeats the virtual one and the pneumatics work correctly, but the pneumatic tubes are not yet laid inside the front of the hull and this is a real problem. There is very little space, but I hope that I can handle it. also added a log pusher in front like the original

I want to thank everyone for the words of support - it's inspiring Some progress: - I decided to change the color scheme because the combination of light bluish gray and dark bluish gray looked very boring (I don't have enough yellow parts to build it in the classic Volvo color) - I made the back one stud higher to be more like the original - finished cabin. I am pleased that even on such a small scale it was possible to place the driver's seat and controls. - added some decorative elements I also made sure on a natural model that there is enough space to accommodate all the pneumatic hoses. The concept of management has also been changed. Pneumatics will control boom tilt and lift. Opening/closing and rotation of claws will be manual.

Such a clean design! Incredible!

Some progress. The back is completely finished. Because there are no pump and pneumatic switch models in Studio - I made them from other parts. After laying the hoses, there is absolutely no space left inside. I hope I can stretch them all through the center section.

I was sure that this machine corresponds to construction equipment, because it is a modification of attachments for a heavy wheel loader. But now I'm going to wait for confirmation from @Jim before I go too far.

Hello. This will be my second attempt to build a Volvo L180HL (the first attempt was on a larger scale and was not finished ) In fact, the scale should be very small. but due to the large size of the boom - the size of the overall box will be approximately 7500 cubic studs. At this scale, the dimensions of the long pneumatic cylinders are ideally matched to the scale of the original. Planned features: - manual pneumatic pump - boom lifting with pneumatics - opening-closing claws with pneumatics - HOG at this point I am convinced that all the main elements can be done in this scale and have already begun the physical assembly of the back. I'm still thinking about boom construction. Maybe I'll ditch the big turntable parts and use liftarms.