kubic

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About kubic

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    Poland

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  1. I haven't made an LDD file of this model, but a lot of things can be seen in the video with the WIP photos or on the renders. I have, however, made an LDD file of my previous crane, which can be found here. It was much less complex, but it was a good lesson for how not to build some mechanisms This model was much better and I really seem to enjoy building these machines.
  2. Thank you for all the replies! Sounds interesting, I might try that out next time. Thanks!
  3. This project started about one year ago, when I saw this machine in real life. Previously I wasn't impressed at all, but seeing it ignited a spark. I abandoned it because of the lack of snow that particular winter to return to it later. It is inspired by PistenBully groomers, but it is not a scale model. Here is the final outcome :) As you can see, it uses Sariel's custom tracks. I'm happy to publish the (probably) first model using them (apart from his models, of course). It was however not the best use for them. They are really bad in snow. While they are OK in fresh snow, they can't propel the model on the ski slope - I was only able to drive downwards. There was also one thing I didn't consider - since the drive wheels are located so low, snow would quickly get there and melt, which caused the loss of traction. Oh well. Ready-made tracks would perform much better, but it was an interesting experiment. It's also unstopable on carpet - the model was succesfully tested by a 7-year-old :) It was designed to be failproof and it does its job very well. Other functions work without any problems. The middle wheels have simple pendular suspension. On the rear it features two easily interchangeable tillers. The one above is very detailed and its sides can swivel down. I don't know all the technical terms. It works fine, I like that I can control both sides with a single gear. The moving parts stay in place because of worm gears and friction pins. It doesn't have a razor, but it is also an optional equipment on real machines. The second tiller was designed to be light and simple, just in case the lifting mechanism doesn't function properly. I was actually surprised by how much a single small linear actuator can lift. It required a bit of experimenting with angles, but at the end it would easily lift the heavy attachment or press it down, because the whole thing was suspended on two shock absorbers. Everything can be seen in the video. I'm very happy with the front shovel. It's very sturdy, angled enough to actually flip through the snow, just like in real groomers. It is lifted by an L-Motor with two small actuators. It has the power to lift the entire model. The blade can also be rotated with the use of a worm gear. It's similar to Designer Han's Leitwolf, but functions better. I installed two shocks, which effectively reduce the backlash, but still allow for some movement and act as suspension. At first I wanted to use pneumatics, but they would look messy and not be able to keep the angle. The guide wheels on both sides help a lot when driving through carpet. The sides don't move to be more sturdy, so I added some fake cylinders. They took me well over an hour of experimenting :D Cab can be tilted and doors open. The interior is modest, but it doesn't lack anything essential. Under the cab there's a battery box for the lighting - I use LifeLites LEDs. I absolutely love them, because they have 25 pre-programmed sequentions - here we two blinking orange lights on the roof. The building of the cabin was a challenge even of itself, because the width had to be even. In the base two XL-Motors (geared 3:5) need to sit side-by-side , so I had to use bricks and plates to create very strong sides. You can't really do it with a single layer of connectors, and at 13 studs it was way too wide. At the however the use of classic bricks turned out to be a good thing. It was also my first model to use the 8878 rechargeable BB. One interesting small thing is, the on/off switch is controlled by a hidden lever with a rubber connector, which makes it comfortable to control. Overall I'm happy with the model. Performance on snow could have been better, but it is a beast when on carpet. Functions have more than enough power and the looks are also fine. I managed to hide all the electric components in the base. Some previous Technic groomers had more functions, but usually at the cost of a huge battery box behind cab or some motors inside tracks. I managed to keep my model clean and sturdy. A lot more pictures on my bricksafe: http://bricksafe.com/pages/kubic5/snowgroomer Here is the video: Thanks for reading!
  4. [MOC] Excavator

    Wow, it looks fantastic! The color scheme is interesting and the gearbox is impressive. It would be great if you released the digital file - I'd love to build it myself. Also, welcome to Eurobricks!
  5. Great truck, packed with functions. Did you make the water tank yourself or can you buy it somewhere?
  6. Thank you!
  7. Thank you all very much for the great comments! I don't think you have shown it in your topic, so it would be great if you added it to the list I don't actually have 42009 and I'm missing a couple of essential parts for it, but maybe one day... Thank you! There's only one extension wire going through to allow it to rotate, but it can't do it infinitely.
  8. Hi, it's been a long time since I posted a model. So here I am with another crane. I know that many people build them, but I really like this subject and I think I'm improving with every model. To begin with, I'm sorry for the quality of the photos - the weather has been bad for about a week and it doesn't seem to change. The axle setup and the outriggers are the same as in 8421. I used these stabilizers, because they don't require much space and work better then the ones I've previously used. Here is the list of functions, also visible on the renders below: -XL Motor geared 1:2.33 for drive. The third axle is driven with a differential and no suspension, so the off-road capabilities are minimal, but it drives well on flat surface -Servo for 6 wheel steering with correct angles -M Motor geared 1:40 for outriggers. They hold the model very well. When the batteries are full, they can lock themselves without any help -M Motor geared 1:168 using 56t turntable. It is equipped with four rollers made of wedge belt wheels, which is a big improvement over my previous cranes. It has no problems rotating with some load -L Motor geared 1:8.33 driving a single linear actuator for luffing. I didn't think it would be enough, but it does its job fine. The bad thing with using a ready-made actuator is the boom angle. It is only about 67 degrees, so it limits the amount of load the crane can lift -L Motor geared 1:24 + 1:2 with pulleys for winch. It is an overkill for this model, but I didn't have any more M Motors and the L has got a lot of attachment points. It could easily lift over 1 kg, but the crane itself limits it -M Motor for extending the boom. The motor is inclined to fit in the boom. It drives the rack via a u-joint and a worm gear. The boom has three sections and is based on the Grove GMK6400's excellent one I only have three IR Receivers, so luffing is controlled through a PF Switch located in the rear of the superstructure, but I forgot to include it on the renders. It is very easy to access and you don't have to hold the remote. I decided to put the battery box in the carrier for aesthetic reasons. I have just bought the rechargeable box, but it was not planned to be in this model. The box is a structural part of the build, but can also be removed by pulling out the connectors with chains. The model is lit up using 8 LifeLites LEDs with their battery just below the PF BB. All of them are in the cab and they give a nice effect. Lack of BB in the superstructure results in a big problem with counterweight. My previous crane had 0.75 kg of counterweight and this has none. It limits the lift capacity by a lot. The crane can lift 800 g on the front with retracted boom, 500 with boom retracted and superstructure slewed by 90 degrees and only about 100 g slewed and fully extended without swaying. The winch has no problems with over 1 kg, but with the values bigger than above the crane just leans over or puts a big stress on the turntable. You could probably lift more before tipping over entirely, but that's not what it's all about. The model has some manual functions. All doors open and the operator's cab can be lifted by hand. It uses a simple scissor lift and a manual lock to extend and tilt at the same time. Also there's a compartment in the rear behing some small rotor blades, which includes a fire extinguisher held by a pin. I had some space left, so I decided to put it there. The crane is equipped with many details, which for me really make the build. I have included all the lights, chains, beacons, exhausts, seats with armrests and headrests or an additional winch on the boom, which only sits on a friction axle pin, but adds to the looks when the crane sits on the shelf. Anyway, here is the gallery with some more pics. I can take more photos if you want. All of the functions work well and reasonably fast. The only slow one is the winch, but it would be harder to gear it up without an impact on the looks. I'm happy with the model and hope you'll like it too. Here is the video: I also have a link-only (don't want it on my main channel) video with some WIP photos. The build is just filled with wires. Apart from the stuff listed above it also has four extension wires. I went with the classic yellow color. For many people it's boring, but it is actually my first yellow Technic MOC. My two previous cranes were white and red because of the lack of parts. It matches the Mercedes star very well I'm happy with this MOC. I also fell in love with the 11 x 5 sloped panels :) Only things to change would be to move the superstructure backwards by a couple of studs and add pendular suspension on the driven axle. I will probably show another MOC this month. Thank you for reading!
  9. [WIP] Megacar

    This model is a blast! Looks fantastic with these colours. Can't wait for some more photos and the video.
  10. Technic Pub

    Merry Christmas to everyone :)
  11. Opions on Technic 8283?

    It's a great little set. I really like its looks-the rigid hoses do their job and engine from ellipse liftarms is a neat feature. The ride is very smooth and the steering linkage is interesting. I absolutely love those front mudguards on top turning together with wheels. Lifting the arm is a bit problematic, because it has a lot of backlash and travel not limited. Extending and tilting work, but they are still loose. Overall, it is a playable set, but I would rather keep it on the shelf. I highly recommend it.
  12. Hi, I decided to share my WIP for the contest. There are only a few topics and it's a second telehandler. I hope it will be worth it. I started working on this as soon as I saw the 10k limit in the discussion. It was hard to think of something small and very functional. My main inspiration for this model is 8283 set. I wanted to improve it, as it didn't have any outriggers and the arm movement was unlimited. My version has already got steering operated by a gear on the cabin's roof, front outriggers (which at first actually had longer liftarms so they could lift the model but they decreased ground clearance a lot), rear independent suspension based on torsion bars, pneumatically liftable arm with realistic range of movement and a worm gear and liftarm-based mechanism for extending the arm (still a prototype). I will of course change the colors, but i haven't decided which colours to use yet (my colour pallet is very limited though). I'm also going to make lockable steering via the T-liftarm near the rack (at first I added it there as a mounting point but it kept swinging and locking the steering surprisingly well so I came up with an idea yesterday and I will mount a second one on the other side and operate them with a link. I will maybe add a small cylinder on the arm to tilt the forks, but first I need to make a proper arm Here are some pictures: I'm afraid there won't be many updates soon, because school is the priority I am not yet sure about the B-Model. A truck, maybe? Have a nice day
  13. It looks fantastic and seems to have a lot of functions, but be careful with the size. With 21 studs of width and ~17 height you can only have a lenght of 28. You should also make some room for the pump. I'm having the same problems,I will post my WIP in a few days.