kbalage

Eurobricks Citizen
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About kbalage

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  • Website URL
    http://www.racingbrick.com

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  • Gender
    Male
  • Location
    Budapest

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  • Country
    Hungary

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  1. Mindstorms EV3 Lamp

    That creation blew my mind, very impressive! Reminds me a lot of the Pixar lamp (you only need to make it jump now ) Congratulations!
  2. @MattL600 Thanks, the animation was a nice and new challenge, never done this before. I tried first to stick to the 15-20 fps recommended by the experienced brickfilm creators, but it really needs practice and experience to create motion with that many steps. Finally I created the animation with only 10 fps, but I think the result is still ok. It took a couple of hours to create all the shots, I used mostly my phone for that with a dedicated stop motion app.
  3. [WIP] 2017 Ariel Nomad Tactical

    A very cool vehicle to replicate, I'll follow the progress for sure :) Do you see already the scale, what wheels will you use?
  4. @TechnicSummse About the weight, the car without the GPS and the 2 BuWizz units is around ~700g, one Buwizz unit is 70g, GPS unit with holder is 65g, so altogether it was around 900g. I tested the car with several gearing ratios, this seemed to work the best - 36t & 12t beveled gears. Half beams did not seem to be strong enough to survive the crashes :) I'm sure the structure could be improved further, my main goal I set for myself was to go over 40 km/h, so that was all for me. I have no intention to compete with anyone, I was simply curious if I can reach the same speed range like the cars you made :) Theoretically it could go much faster, the 3200 RPM I measured on the test pad would mean ~56 km/h, but I'd need absolute ideal circumstances to reach that. The main problem with BuWizz is the limitation of the BT range and the stability of the connection, at this speed it can go out of range in 1-2 seconds and once the connection is lost it's not that easy to re-establish it. Additionally, once it goes out of range sometimes it still spins the wheels at full power so that's one of the reason I had to create a "survivor" type of car, there were tons of crashes. I don't think there's a major difference between the capabilities of our vehicles so I don't think you should be envious. Purism is always subjective, for a Power Functions purist your vehicle also uses obsolete parts so there always will be made-up standards where ones fits and the other does not :) At the end of the day these are funny technical challenges we create for ourselves so I don't think we should take these too serious. I'm glad you like the video, for me the subject of the video is only one part, the presentation is also equally important. Trying to improve myself constantly at this as well :)
  5. Thanks again folks! @Davidz90 - If it was unloaded the wheel was spinning well over 4000 RPM, the Lego speed meter could not measure the exact value. @mocbuild101 - I'm sure I won't make something this fast in the near future, I spent way too much time with this project :) I'm sticking to the "small & relatively fast" formula, although I could not resist to start to build @agrof's amazing class 1 buggy and try to implement some of my ideas :)
  6. Massive model with cool functions, congrats! And the renders are also fantastic :)
  7. @zux I see your point, but please give me the freedom of naming my videos and deciding on the sequence of words :) As I did not do the run in the opposite direction within 60 minutes I know I don't qualify to claim a Guiness World record (wouldn't be the "fastest Lego Technic car" anyway), but I can live with that... Joking aside, I had multiple runs with a speed between 39-40 km/h but this was the quickest as the car was running dead straight when it went out of remote range so it managed to go far enough to reach this speed. @Marxpek - That's a good strategy for the RC unit, unfortunately if I go out of range with the bluetooth control it is not that simple to re-establish the connection. I'm following your attempts and hope you'll make it with a 100% pure Lego creation for everyone's satisfaction ;)
  8. Thanks guys! I was so close so many times to 40 km/h but finally made it :) I think it was more about the road quality sometimes then the car itself. @Marxpek I tried it on a bike, but I could not accelerate quickly enough before the end of the road, and the touch controls were still hard to handle :) Maybe if BuWizz adds gamepad support someday.. @zux I choose the title "Fastest Lego Technic car powered by BuWizz" for a reason, as far as I know there was no faster BuWizz-powered Lego car yet. I did not say it's 100% Lego, otherwise I'd call itt "OMG THIS IS THE SUPERFASTEST LEGO CAR EVER !!4!!4!!!" or something like that :) Using a 3rd party battery desinged and built especially for Lego is not really the same as throwing out the MOC of the plane and calling it a success.
  9. First of all please watch the teaser video from last week :) A couple of months ago everyone and their grandma tried to build an RC car going faster than 40 km/h. Although I don't have a properly working old Technic RC unit with the remote (somehow I have only faulty ones), I have the necessary amount of buggy motors and 2 BuWizz units, so I had to give this a try :) The build is not 100% pure Lego (although BuWizz is built to be used with Lego), but it still has the fun factor and of course the challenge :) The whole process turned out to be much-much longer than I expected, but at the end it was a success! I spent several weeks creating, improving and testing the car. The basic idea was to use 2 BuWizz units, 4 buggy motors and 4 Technic motorcycle wheels and to add only the minimal amount of components to remain light and fast. It had to be solid enough to survive all the crashes during the tests and record breaking attempts. I had dozens of tests at various locations until I found a proper track and the final configuration of the car was created. During this time a lot of parts had to be replaced as the axles were bent after a couple of runs, you can see the examples in the video. The car does not have a conventional steering to reduce weight. For the speed runs only small adjustments are needed, so the direction of the car is controlled by the speed difference of the wheels - there are two control sliders on the phone for each side of the vehicle. The faster output of the buggy motors is used, the gear ratio is 3:1. I tested several combinations to drive the wheels, the most successful one turned out to be the usage of 36t and 12t beveled gears. The speed was measured with the on-board GPS unit. The car was controlled mostly with my phone, but for the fastest run I was using an iPad (longer range). Even like this at full power the car ran out of range very quickly. I think it would be possible to go even faster with this car, but that would require a completely flat surface and a chase vehicle to ensure the controller stays in range. Maybe another time ;)
  10. [TC12] The Stretch Slicer

    And I thought I already have too many engine parts... can't wait to see more photos!
  11. If anyone wants to use BuWizz with a constant output level (e.g. trains) then this is your lucky day - app is updated with trains control. Unfortunately not much else is new... and my dual unit issue is still there as well :/
  12. A little help if someone wants to build the wheeled version with the buggy motors - I created video instructions for the 2 axles:
  13. @tamahandy The buggy motors are driving the wheels directly from the outer (slower) output. Tested with the faster output as well but that was too much stress for the BuWizz units. I can help you with the construction of the axles, I created some photos while I was disassembling them, I can put together a small video similar to this one if it helps. It won't be a complete instruction set but might be enough to give you the idea. @Joey73 That M motor is mounted to an "L" shaped DBG liftarm with a single black pin, and also the axle is supporting it. Regarding the gears I cannot really tell you more than what you see on the image. As this model is disassembled I cannot give you more pictures. I suggest to try to fit the motor yourself in your build and see how these gears can fit and where/how you have to transfer the drive with them. @JTCN The buggy motors did not overheat, in some scenarions the protection of the BuWizz units kicked in when there was a sudden load increase (like hitting an obstacle or accelerating with full power from zero using the high output). To be honest I did not run these cars for too long in a single take, 2-3 mins maximum.
  14. RC Trabant 601

    That's a very nice Trabant, congrats! The shape is very well done, instantly recognizable :)