Posted October 5, 20195 yr It's official: what we've been doing for the last half of year together with LEGO was turning a real-life Liebherr R 9800 into an RC model. And guess who drove it :D More video content will follow soon! My behind-the-scenes video: And finally, here's a brief behind-the-scenes video from LEGO: Edited October 8, 20195 yr by Sariel
October 5, 20195 yr Interesting. How did you solve the issue with the range? Also what is up with those cut and soldiered PF switches?
October 5, 20195 yr Author There was a guy from LEGO who had equipment capable of turning Bluetooth signal into wi-fi signal and back again. And 100 meters of range with wi-fi was only a matter of getting right antennas (yes, there were two, and we had a Star Wars lightsaber fight with them ;) ). I don't know about switches. I've just made the foot pedals mechanism, the cables were not my responsibility. Edited October 5, 20195 yr by Sariel
October 5, 20195 yr This is either madness or brilliant. And I'm envious you got to run it. But will it dig? I assume it would, although you might need a camera to see what you're doing. Oh, and it will always be an "R Ninety-eight hundred" to me! (Kinda like New Holland insisting that my T8.390 tractor is a "T 8 dot 390.")
October 5, 20195 yr Great effort and promotion for Technic, well done & welcome to the Hunter Valley, NSW, Au ?
October 6, 20195 yr Nice, any idea if there'll be any more extended footage later? It'd be awesome to see the full mechanism. Also, lol at that CGI at 1:36
October 6, 20195 yr Author 36 minutes ago, Bartybum said: Also, lol at that CGI at 1:36 Sorry, what CGI? There is no CGI, every shot was for real. Yes, we really slammed the bucket in the ground, you'll see the same shot in my own video which comes out tomorrow.
October 6, 20195 yr 7 minutes ago, Sariel said: Sorry, what CGI? There is no CGI, every shot was for real. Yes, we really slammed the bucket in the ground, you'll see the same shot in my own video which comes out tomorrow. Do the stick pistons really bounce around that much? That's pretty much the only reason I thought it was CGI/some sort of physics simulation. That and the colour palette suddenly changing. Edited October 6, 20195 yr by Bartybum
October 6, 20195 yr Author Yes, pistons bounce, and the colors differ because we've been filming this over 2 days and we got cloudy weather halfway through the second day, this shot was taken right then. If LEGO wanted to use CGI, they probably wouldn't have bothered with sending us to Australia to get the real R 9800 in the first place.
October 6, 20195 yr Genial, simply genial! Is there a specific reason you worked on a backhoe version and not a front shovel version? How long did you take to design the Technic "arms" to drive the excavator controls?
October 6, 20195 yr That is damn COOL! Did you get like pictures and technical drawings of the controls and made the parts at home and made small adjustments on site or..? One thing though... so they fly you half way around the world, and make all this happen... why not send you somewhere where the R 9800 actually has the bucket in the same orientation as the LEGO set? EDIT: 1 minute ago, mpj said: Is there a specific reason you worked on a backhoe version and not a front shovel version? You just beat me to it! LOL Edited October 6, 20195 yr by shadow_elenter
October 6, 20195 yr Author 2 minutes ago, shadow_elenter said: Twhy not send you somewhere where the R 9800 actually has the bucket in the same orientation as the LEGO set? Because there were exactly TWO front shovel R 9800's in the world at the time of making our video and we couldn't get any of them.
October 6, 20195 yr Another question: your Technic arms are moved by LAs so they don't have a "return to center" mechanism? I think you should be very careful because the movement remains engaged until you drive the LAs in the opposite direction to come back to the neutral position.
October 6, 20195 yr 8 minutes ago, Sariel said: Because there were exactly TWO front shovel R 9800's in the world at the time of making our video and we couldn't get any of them. Ah, yes, that's not a lot of options there. Well, it's quite a cool achievement non the less! Just now, mpj said: Another question: your Technic arms are moved by LAs so they don't have a "return to center" mechanism? I think you should be very careful because the movement remains engaged until you drive the LAs in the opposite direction to come back to the neutral position. Damn it mpj, I was typing basically the same question here, STOP THAT!
October 6, 20195 yr Pretty sure you could program all the actuator control to self-center when the input is at zero. Just like servo in 42099, just more degrees/rotations.
October 6, 20195 yr @Sariel, awesone job. Didn't you have an hidden human in the machine for backup? I can imagine that the owner asked you for some kind of emergency stop.
October 6, 20195 yr 19 minutes ago, shadow_elenter said: Damn it mpj, I was typing basically the same question here, STOP THAT! no more questions by my side, I promise!
October 6, 20195 yr Author Yes, we had no return-to-neutral mechanism, that's why we've used realtime telemetry from the cabin, to watch positions of the joysticks and pedals.
October 7, 20195 yr Author Here's my behind-the-scenes video and full story with pics will be coming to my website shortly:
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.