The model is incredible, really congratulations, I would like to see your progress and new emsables, I will talk to my students about your ideas, thank you for sharing it.
Thanks. I made a few improvements since this video and the new build Instructions are on ReBrickable: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot
@@kimfrancis4674 No, this requires many parts that are not in the Spike kit or the Expansion kit. A full part list and build instructions are available from Rebrickable.
I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot
Can you tell us the steps on how to make this robot? Our team wants to try out this robot. We think it’s a very good idea and think it will be good for us.
I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot
I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot
Every time the orange ring rotates another 90 degrees, the power shifts to a different output. So at 0 degrees, one output is active. At 90 degrees it's a different output. at 180 it's another and at 270 it's the last one. So you use one motor to rotate the orange ring to either 0, 90, 180, or 270 and hold it there. While it's in that position, the other motor will drive one of the four outputs. You'll need to write a program that first shifts the orange ring to connect the desired output, and then runs the other motor to actually move that output.
Hi I have a problem; My robot pulls slightly to the right when I drive it. Does anyone know how to fix this issue. My gues is that the wheel bearings have a lot of friction
A bot can drag to one side for a variety of reasons. It might be off balance if it is pushing or carrying something heavy. There might be something dragging against a wheel, like a loose wire. Or it might be "poorly matched" motors that turn at different speeds. In any event, you should use the gyro sensor to correct for all these problems if you can't fix them directly.
I would like to but first I want to create build instructions and possibly a few more modifications. Eventually I will put it up on my Rebrickable page.
I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot
Correct. That's the tradeoff. Quadbot has twice the number of powered outputs as the typical FLL bot, but Quadbot can only operate one output at a time.
@@Tactualelf This bot only uses 4 motors. That's the point of this design. There are two motors to drive the wheels, one motor to shift the transmission, and the last motor to drive the selected out. That's how this bot can drive 4 distinct outputs using only two motors.
@WilliamFrantz. Hi William Frantz. We have built this robot and have been using it for a few months. We loved the concept at first glance but after we built it we had problems with the motors. The motors have been very inconsistent. The motors don't run the amount of degrees that we ask it to. Please get back to us or even have a meeting with us to solve this problem. We really want to use it for our FLL competition in November.
Thank you @william . We are trying to build this with your newer improved design instructions. fingers crossed
Watching this design develop has been awesome. I can't wait to see the end product and how it performs.
Pretty impressive design. Congrats
The model is incredible, really congratulations, I would like to see your progress and new emsables, I will talk to my students about your ideas, thank you for sharing it.
Thanks. I made a few improvements since this video and the new build Instructions are on ReBrickable: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot
Traduzir textos com a câmera
How did you do the transmission from gear to gear in the lower red gear?
Full build instructions are available at rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot
Very smart design!
Would you be able to raise up the hub a stud in order to route some of the wires underneath to help with management?
The problem is the gears. I need to route the cables around the gearbox because I don't think I can route through it.
@@WilliamFrantz I have been thinking about how to manage the wire, doesn't look like there is an easy solution.
The compact design here is really impressive. Still not entirely sure how you managed to pack it all in!
I log a lot of hours in Lego Studio.
Did you use only pieces from the spike kit and its expansion kit?
@@kimfrancis4674 No, this requires many parts that are not in the Spike kit or the Expansion kit. A full part list and build instructions are available from Rebrickable.
Can I have instructions or pictures from the inside
I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot
Can you tell us the steps on how to make this robot? Our team wants to try out this robot. We think it’s a very good idea and think it will be good for us.
I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot
tutorial?
I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot
how do you use the motor to select which output spins? My son is confused on that.
Every time the orange ring rotates another 90 degrees, the power shifts to a different output. So at 0 degrees, one output is active. At 90 degrees it's a different output. at 180 it's another and at 270 it's the last one. So you use one motor to rotate the orange ring to either 0, 90, 180, or 270 and hold it there. While it's in that position, the other motor will drive one of the four outputs. You'll need to write a program that first shifts the orange ring to connect the desired output, and then runs the other motor to actually move that output.
Hi I have a problem; My robot pulls slightly to the right when I drive it. Does anyone know how to fix this issue. My gues is that the wheel bearings have a lot of friction
A bot can drag to one side for a variety of reasons. It might be off balance if it is pushing or carrying something heavy. There might be something dragging against a wheel, like a loose wire. Or it might be "poorly matched" motors that turn at different speeds. In any event, you should use the gyro sensor to correct for all these problems if you can't fix them directly.
@@WilliamFrantzthank you, it was a problem with the motors but we’re nie using the gyro sensor
Am I right to think that the four outputs can only be driven in one direction?
No, they are all bidirectional. For some reason I just didn't think to demonstrate that.
Hi, can you give the model 3d of the robot 😊
I would like to but first I want to create build instructions and possibly a few more modifications. Eventually I will put it up on my Rebrickable page.
Really looking forward to the build, and started following you on Rebrickable!
@@WilliamFrantz That would be really great!
I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot
The only disadvantage is that you cannot make several movements at the same time.
Correct. That's the tradeoff. Quadbot has twice the number of powered outputs as the typical FLL bot, but Quadbot can only operate one output at a time.
It's actually illegal in compation
Do you think so? I'm not sure. What rule might be violated?
@@WilliamFrantzthe 4 motor rule
@@Tactualelf This bot only uses 4 motors. That's the point of this design. There are two motors to drive the wheels, one motor to shift the transmission, and the last motor to drive the selected out. That's how this bot can drive 4 distinct outputs using only two motors.
Oh ok that's a really cool design
@WilliamFrantz. Hi William Frantz. We have built this robot and have been using it for a few months. We loved the concept at first glance but after we built it we had problems with the motors. The motors have been very inconsistent. The motors don't run the amount of degrees that we ask it to. Please get back to us or even have a meeting with us to solve this problem. We really want to use it for our FLL competition in November.
@@PathwaysRobotics Sure. Contact me on Facebook. facebook.com/share/LgGTB4PYCAXRxZiK/