Team 3081 - RoboEagles Prototype Launcher

[huurrpaderp]

How did you go about bending the c channel?

[wilsonmw04]

Thanks for sharing your results. Well documented. A picture is worth a thousand words .

[Garten Haeska]

Originally Posted by huurrpaderp

How did you go about bending the c channel?

You can see that they cut te bottom and welded it back together. But wouldn't that mean that they would have cut the top too?

[Camren]

We used an alternative bending form where you cut two pieces of wood. one is shaped to the right size of arc. the other is a chunk that allows you to hit the inside of the c channel. then hammer away. There was a slight difference between the size of the bend and the actual arc. but the screws made it work out. If this is confusing please let me know I can get a video up tonight or tomorrow night showing how we did it.

[ehochstein]

I finally had the time to compile and upload a video of the shooter today.

Check it out!

http://youtu.be/AAAl2DQggYE

[lcoreyl]

Thanks for all the info! Looks great!

Is the tread there for compression so you can "fine tune" your arc? sorta like a push/pull adjustment with the screws?

[ehochstein]

Originally Posted by lcoreyl

Thanks for all the info! Looks great!

Is the tread there for compression so you can "fine tune" your arc? sorta like a push/pull adjustment with the screws?

Kind of, when we were cutting the angle we forgot to take in account the size of the router bit. So out arc was a fraction of an inch too wide. This was just what was lying around when we were fixing it.

[flamer075]

Has anyone tried using a shooter with bane bots rather than CIMs?

[ehochstein]

Originally Posted by flamer075

Has anyone tried using a shooter with bane bots rather than CIMs?

We have not tested with bane bot motors. I could give some speculation to how they would work if asked but it wouldn't take my speculation for much.

*Launcher Update*

We did some additional testing this week and found that in order to get more distance, height and accuracy with this specific launcher it is required to have the extra mass on top. The mass allows for additional momentum from the wheel (think f=ma) and causes less motion loss when launching the frisbee due to compression. The frisbees we launched without the saw blade on top traveled aprox. 3/4 the distance of the frisbees with the saw blade attached.

Safety Warning I highly recommend anyone attempting this grind the blades off of the saw, add warning signs and tape the edge of the blade with safety tape. We made a very large cut in one of our tables.

[Negative 9]

Originally Posted by flamer075

Has anyone tried using a shooter with bane bots rather than CIMs?

Our team tried direct driving a Banebot with the 6" KOP wheel. At an incline between 20-30 degrees we got about 15 ft of distance.

[flamer075]

My team has already found use for all 6 CIMs so we were going to prototype our shooters using the bane bot motors. Has anyone tried prototyping a linear two wheeled shooter with it and what were the results?

[Tom Line]

Originally Posted by Negative 9

Our team tried direct driving a Banebot with the 6" KOP wheel. At an incline between 20-30 degrees we got about 15 ft of distance.

There are a large number of banebot motors. Could you be more specific on which banebot motor you direct drove?

[Negative 9]

Originally Posted by Tom Line

There are a large number of banebot motors. Could you be more specific on which banebot motor you direct drove?

My apologies. We were using an RS-775.