Teo LEGO Technic

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About Teo LEGO Technic

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  1. Foarte tare! Do you have any videos of it driving? Also, I can't really see from the photos what parts you're using on the front for the driven independent suspension, is that the old CV joint? Did you have any issues with it popping out under the power of the buggy motors?
  2. Teo LEGO Technic

    Audi Avant RS6

    Awesome take on this Audi! One of my co-workers showed me this model this past summer, and I've been a big fan of it since, glad to see it built in Technic
  3. Wow, that's an impressive improvement! I'm especially a fan of what you've done with the rear. The brick-built panelling covering the rear wheels improves the shape a lot, and by reducing the distance between the fender piece and the panel above it you've made the car look much more put together. Great work!
  4. Awesome, appreciate it!
  5. Yeah totally! I wonder if it isn't worth having a thread somewhere specifically for advertising LEGO-related events, it'd be nice to gather more people here in Canada. Anybody know how to go about that? @Milan Sorry to bother you, perhaps you have a suggestion?
  6. Teo LEGO Technic

    [WIP] Praga Trial Truck 6x6

    Good point, that's definitely the case. I was thinking about the question of diffs vs. no diffs more generally, not for this specific axle.
  7. I just love that Hoonicorn!! So much detail is packed in for a car at that scale. Si mie mi-ar place sa particip data viitoare la eveniment, dacă sunt in Romania, fiindca locuiesc in Canada dar vizitez aproape in fiecare an . Cel putin osa ma inscriu la forumul Rolug!
  8. Teo LEGO Technic

    [WIP] Praga Trial Truck 6x6

    Thanks! The only mechanical change is I added a stopper on the middle axle so that the drive axle doesn't slip out under any circumstances. Other than that, the only change is to the look of the cabin Update October 3rd The video is completed, here it is!
  9. Teo LEGO Technic

    [WIP] Praga Trial Truck 6x6

    Thanks a lot!! To answer your questions: The gear ratio coming out of the gearbox is: Low gear: 1:1.4 High gear: 1:3.89 The gear ratio from the gearbox output to the wheel, in the transmission, is 12.58:1, so the final ratios are: Low gear: 8.99:1 High gear: 3.23:1 As for the lack of diffs, I did not find this to be an issue. My steering axle had a sharp steering angle, which allowed the truck to have a good turning radius despite not having diffs to allow the wheels to turn at different speeds in corners. While the turning radius would have been improved slightly with open/lockable diffs, I think it was a good call because it saved weight by eliminating a diff locking mechanism. As well, the combination of planetary hub + defender rims made the pivot very close to the center of the wheel, which reduced the strength needed to steer. Thanks! The only mechanical change is I added a stopper on the middle axle so that the drive axle doesn't slip out under any circumstances. Other than that, the only change is to the look of the cabin
  10. Teo LEGO Technic

    [WIP] Praga Trial Truck 6x6

    Update September 27 After a busy couple weeks, finally had time to redo the cabin and take some photos. Video to follow soon. More here: https://bricksafe.com/pages/Teo_LEGO_Technic/praga-6x6-trial-truck
  11. Teo LEGO Technic

    [WIP] Praga Trial Truck 6x6

    Yeah, it was awesome! Hopefully the first of many. Update August 18 The final video is edited and finished, enjoy! Next step is to finish up the Praga truck and made a video with it as well.
  12. Teo LEGO Technic

    [WIP] Praga Trial Truck 6x6

    Update August 16 This past weekend, Toronto had its inaugural Truck Trial! Thanks to @2GodBDGlory and @lmdesigner42 for participating, here is a photo of the 3 trucks that competed: All the trucks performed well, with different strengths and weaknesses. @2GodBDGlory's Lada was a monster of torque and power, speeding through the course but also destroying a few parts along the way, more info about it can be found here: @lmdesigner42's truck was slow but powerful and its winch really helped it out of some tough situations, but the added weight made some of the gears crunch under high torque as well. As for my truck, I was very satisfied with the performance. The drivetrain never had any breaking gears anywhere, and the only issue is once, under the worst conditions, the drivetrain slipped out of the middle axle, and this is something I will fix by adding some stoppers to limit the range of motion on that axle with respect to the chassis. The gearbox worked like a charm, as expected, as did the suspension. The steering, which I was worried wouldn't be quite strong enough, turned out to have plenty of strength, and the speed of it, and return-to-center provided by the servo was useful. I was also concerned that the lack of differentials could hurt the steering radius, but it turned out to have quite a good steering angle despite its long wheelbase due to its large steering angle, and the fast steering meant it wasn't time-consuming to steer back and forth several times for really tight corners. Overall it is definitely my most capable trial truck to date, and thanks a lot to everyone who helped with advice and feedback along the way, particularly @Zerobricks and @gyenesvi. As a next step, I'm going to redo the bodywork to look nicer, as it was just a temporary build for the truck to be ready for the race, and as I said before I'm going to fix the escaping drivetrain axle as well. As well, a video with the race will follow as soon as I have time to edit the footage. Below are the results of the race: Results Track 1 2GodBDGlory - 1:54 lmdesigner42 - 6:00 Teo - 0:42 Track 2 2GodBDGlory - not completed lmdesigner42 - 8:00 Teo - 0:20 Track 3 2GodBDGlory - 0:17 Teo - 0:19 lmdesigner42 - 5:00 Track 4 2GodBDGlory - 3:19 lmdesigner42 - 12:00 Teo - 2:00 Track 5 2GodBDGlory - 1:45 lmdesigner42 - 5:00 Teo - 1:43
  13. Teo LEGO Technic

    [WIP] Praga Trial Truck 6x6

    In the end I did something similar to this, yes.
  14. Teo LEGO Technic

    [WIP] Praga Trial Truck 6x6

    That would be ideal, sadly I don’t have any. I’ll get some perhaps for the next build.
  15. Teo LEGO Technic

    [WIP] Praga Trial Truck 6x6

    I looked at your Mercedes 6x6 and I see what you mean, you linked the middle axle to the chassis, and the rear axle to the middle. I guess the only issue with this setup is that it does not implement the bogie design, but rather uses regular shocks on both axles, but it would appear to make the design more robust. In the end, this is the design I settled for, with a custom sliding axle design that is robust enough and allows more travel: With the competition only two days away I'm going to rush to make this thing drivable and add some bodywork, and I think I may continue to work on it afterwards to try to fix a few things. In terms of the robustness of the chassis, what techniques do you guys recommend to make it as strong as possible with the fewest parts, to keep weight down? One technique I always use is two have a 2-stud thick build made of beams and 5x7 frames linked together, but in this case, I would like to do things a bit differently as this does not fit above the portion of the chassis where the motors are, where the chassis is only 1 stud thick above and 1 stud thick below.