vascolp

Probably on advantage of using pybricks is that Motors with sensors already have a way to set the speed of the motor (specified in deg/s) and already have PID controller implemented (check this page for instance and serch the run() method and below the control.pid()). I never tried this myself, but after this discussion I curious about it!

Nice discussion around here guys, I have learned a quite few things. @FoxOne you are right, feedback does not magically improves torque just like that. What you have to compare is trying to control a motor speed by hand vs controlling it electronically. With electronically controled motors your efficiency improves a lot. Like for instance, trying to keep a constant speed in your car with or without Cruise control. Cruise control does a better job because it has much better sensors than you the driver, where you only have the speedmeter to watch, windows and maybe your speed sensation. Now consider a LEGO train or a LEGO crawler where your only input is what you see and compare it to what electronics can measure and how fast they can react. In that sense, an electronically controlled motor has much more torque... being used efficiently! I also have a question: some of you might know I did this Remote Bla Bla thing, a general purpose program to control a technic hub with Lego Remote without the need for mobile. On it, I deliberately did not included a mode using the speed controls available in Pybricks because I wasn't fully aware of them. But now I want to include a mode for it! That should be something like dividing the speed of the motor in say 7 steps and having the ability to increment speed in steps by using the remote. The question is: what speed should I consider for the maximum speed of the motor? Should I use for instance RPM speed presented by philo for each type of motor? Will this work? Would I get something similar to @Toastie trains?!?! Or are those speeds too much because those are off load speeds?

Moving from 4 to 6 ports is not really difficult in terms of program structure... The problem is mainly in parameter saving.... I use the remote name to save persistent data because technic hub has nothing to do it...and it's only 14 characters... Feel free to ask!

Well... I don´t have an RI hub, the code has an hardcoded reference to TechnicHb object (easely changeable, as can be seen in Remote City Bla) and supports only 4 ports. Anyway, it should be a very good starting point, specially if you stick with 4 ports only. Also, 4 ports in the remote already requires some finger skills, I don´t know exactly how one would manage six ports! ...

Notice that astyanax posted a link to the part in rebrickable. Check the pictures here for instance. I think this part it self does not make a lot of sence in technic terms, if we need something like that we can easely build it. But what they needed for the lock mechanism looks like a standlaone part. And it is cool how they turned it into a new technic part.

If you look at the sets where they are used, as part of a lock mechanism... I wonder if they were produced exactly for that purpose ...

I know it is easier to write than actually do it but... Could this old part help? 6571: Also, it is a bit rare part....

You are right... and that's an annoyance... so inline with the spirit of this thread!

If I understud you well, you can do it with the old 4143 gears... I think only with these ones... and they are not that easy to use...

LOL!!!!!!!

17: 10 18: 6 27: 4 22: 3 11: 2 3: 1 Incredible contest, very very difficult to choose! Many entries that I really like, and no points to give… Congratulations to all contestants and EB!

Maybe you could also take a look at set 8257 Cyber Strikers. Not exactly what you described, but the effect is very cool, maybe it could be used for fire spitting. There are videos of it, search yt. And in the end, please do show us what you have built.

Hi, Instead of one port for firing and one for raise/lower, why not a port for a gearbox and the other port for the action? I mean, a gearbox with three outputs, three functions: raise/lower, fire and rotate? Space might be a problem... and a chalenge...

Hi everybody, I have created free instructions for this MOC in rebrickable. Check it here. Have a nice day!

Hi everybody! This is RSR-911 Space Cruiser, an alternate model of set 42096. 42096 lights are canopies. Inspired by that, I did this MOC. It was really fun to build, hope you like it. Features: Retractable Feet with suspension Openable Canopies Retractable Rotating Antenna Ejection Seats Stand Description plate LEGO 42096 C model (87% parts) Ship: 1105 parts (69%) Stand: 261 parts (16.3%) Name Plate: 24 parts (1.5%) Free instructions here. See the video below. More pictures here. Video:

[This] might be a good option, I did not try it, I don´t have them available: or maybe other thing that hangs on minifig neck...

If I understood your problem, minifigs can give you a hand… or rather two. Not perfect, there is a bit of tension and you get two protuberant radius bones...

Wow, this is very cool! Small, and with an unusual playability!

B

In my opinion, I would exclude GBCs. GBCs are a specialized field that deserves its own contest.

No cars, trucks, cranes, boats, planes, chopers.... spaceships (!),... quite a challenge. Watch out, GBCs are none of those!

Cool! Will you put a tooth in the right side of the left part? Maybe one in the right and one in the middle?

Hi everybody, I thought on creating instructions from my RSR911 Space Cruiser 42096 alternate model. But I never had done instructions before, so I decided to try it in a smaller model. I did this Corvette Space Fighter as a 42093 alternate model, and made instructions for it. It's a simple space ship with retractable feet and openable canopy. It also includes a stand to place it over your desk. The ship has 387 parts and the stand 76, giving a 79% usage of 42093 parts. I modeled it in Stud.io and created instructions from there. Everything available on rebrickable. Any comments about the instructions as well as the building are welcome. Here are some pictures: And a movie: More pictures here. Thanks and Regards!

Somehow, I missed your comment... I will probably build some more, the RSR911 B-model was really a pleasure to build. The wheels on the wings should be vertical takeoff thrusters, but the wheels are a bit too big for the size of the ship. In the beginning I felt the Corvette had not enough parts to build something, but it ended up not so bad, I think... The Corvette was also very useful to learn how to make instructions in stud.io, which was my goal. I will try to do instructions for the RSR911 if I find time for it. I still must learn how to manage flex-axles in stud.io, though! Thanks for your comments.

Ok, I see what you mean. Looking again to your video I noticed what you said... you only "print holes" never pins. Another picture: in red pin holes to connect to the back, two of them to keep in place. In green pin holes to connect to the sibling... maybe a bit bulky, but probably possible? .Well... lunch time! Nice talk!