FLL Quadbot Concept

Рет қаралды 11,406

8 ай бұрын

Using a transmission, I've designed a compact but competitive robot for First Lego League that can drive 4 powered attachments using just 2 motors. This is a variation of the Orka concept robot. The Quadbot does not have nearly the functionality of the Orka but it is significantly smaller and easier to build.
I have designed a newer version of this and made some minor improvements. I've posted the build instructions on Rebrickable. Please let me know if you are able to build this from the given instructions. It is very challenging.
Build Instructions: rebrickable.com/mocs/MOC-1754...
Orka: • FLL Into Orbit - World...

Пікірлер: 35

@bami2 9 күн бұрын

Very smart design!

@chrisjrtr 8 ай бұрын

Watching this design develop has been awesome. I can't wait to see the end product and how it performs.

@Skrattoune 5 ай бұрын

Pretty impressive design. Congrats

@miguelangellugo4330 3 ай бұрын

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.

@WilliamFrantz 3 ай бұрын

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

@user-kw5ci5xk3h 7 күн бұрын

Traduzir textos com a câmera How did you do the transmission from gear to gear in the lower red gear?

@niotoshh-fm8oh 23 сағат бұрын

The only disadvantage is that you cannot make several movements at the same time.

@blockpartyrobotleague 8 ай бұрын

The compact design here is really impressive. Still not entirely sure how you managed to pack it all in!

@WilliamFrantz 8 ай бұрын

I log a lot of hours in Lego Studio.

@chrisjrtr 8 ай бұрын

Would you be able to raise up the hub a stud in order to route some of the wires underneath to help with management?

@WilliamFrantz 8 ай бұрын

The problem is the gears. I need to route the cables around the gearbox because I don't think I can route through it.

@chrisjrtr 8 ай бұрын

@@WilliamFrantz I have been thinking about how to manage the wire, doesn't look like there is an easy solution.

@user-wc5ks9ch2i 6 ай бұрын

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.

@WilliamFrantz 4 ай бұрын

I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot

@wwvdnbus 3 ай бұрын

Am I right to think that the four outputs can only be driven in one direction?

@WilliamFrantz 3 ай бұрын

No, they are all bidirectional. For some reason I just didn't think to demonstrate that.

@larsbakker6401 3 ай бұрын

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

@WilliamFrantz 3 ай бұрын

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.

@larsbakker6401 3 ай бұрын

@@WilliamFrantzthank you, it was a problem with the motors but we’re nie using the gyro sensor

@legorecrobotics295 5 ай бұрын

Can I have instructions or pictures from the inside

@WilliamFrantz 4 ай бұрын

I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot

@tommasogrimaldi110 4 ай бұрын

tutorial?

@WilliamFrantz 4 ай бұрын

I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot

@CosmoII 8 ай бұрын

Hi, can you give the model 3d of the robot 😊

@WilliamFrantz 8 ай бұрын

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.

@svelterhino 7 ай бұрын

Really looking forward to the build, and started following you on Rebrickable!

@roykrikke7775 5 ай бұрын

@@WilliamFrantz That would be really great!

@WilliamFrantz 4 ай бұрын

I have (finally) put up build instructions for a similar, slightly improved version: rebrickable.com/mocs/MOC-175447/williamfrantz/first-lego-league-quadbot

@eliagg18 2 ай бұрын

It's actually illegal in compation

@WilliamFrantz 2 ай бұрын

Do you think so? I'm not sure. What rule might be violated?

@daltynbreyer2499 2 ай бұрын

@@WilliamFrantzthe 4 motor rule

@WilliamFrantz 2 ай бұрын

@@daltynbreyer2499 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.

@daltynbreyer2499 2 ай бұрын

Oh ok that's a really cool design

@pizzapoop 3 ай бұрын

Love the video, i have one question about the design. Due to the drop on attachments, not being secured by anything, would they be suitable for missions on the FLL board that require objects to be pushed down. For example, this season on the masterpiece board, i cant imagine this robot being able to complete the theatre scene change as the attachment would just lift off while pushing down the orange bar, would there be a way to secure the attachments? Hope that makes sense!

@WilliamFrantz 3 ай бұрын

That's a tradeoff for drop on attachments. It can be difficult to "push down" on mission models that require that. However, you could use pins instead of axles. That would make it more difficult to "drop on" but could also provide more connection strength. You could also design an attachment that includes some type of horizontal bolt that you can engage after doing on the attachment.