Hey everyone!
I’m curious to know what the longest shots are that teams have managed to pull off in this year’s game. What’s the longest distance you’ve seen? Would love to hear about any impressive distances and see some video examples if you have them!
Thanks!
Are you interested in longest legal shots? Or bragging rights from practice?
I’m interested in both!
4414 enters the chat
5114 had a very impressive half field shot into the speaker, it was pretty accurate from what I remember
Here is a near midline off angle shot we did in March.
And our furthest made shot on a real field during a practice match
Was never really a practical real match kind of shot
I’ll nominate another team. While we were doing drive practice with 3647, The Millennium Falcons at the Code Orange field, they successfully made a shot from the opponents wing line. All credit goes to 3647, that was a beast of a shooter.
I don’t know how to add video so here’s the google drive link!
Not what your looking for so to say but at the red stick rumble we chucked a note from our source to the other side of the field and then on top of a rolled up basketball goal.
Thats awesome haha. I’m too lazy to do the math but the allowed error on that shot must be so small
5414 had a shot from just in front of the opposite alliance stage and through the other stage’s truss.
This is definitely not what you were looking for, and it wasn’t on purpose - but it was pretty far.
3647’s shooter is scary accurate. All of SDR they were sinking shots with very little lineup from the far side of the stage.
I think that counts just off the coolness factor!
I looked on wafflesrobotics but couldn’t find a description of your shooting mechanism. We had trouble getting velocity: we had a flywheel to the side and that either had very little contact time with the rounded sides or we had to expend a lot of energy compressing the circle into more of an ellipse. Our range was only about 3m.
In retrospect, we wondered if a roller contacting the top or bottom rather than a wheel on the side was the key. That was way too much of a redesign to contemplate, though. I’d love to learn the true secret sauce!
This far side of the stage?
That was our original concept too, to have shooter wheels on one/either side of the note. However, we ran into similar issues as you did during our prototyping phase where the wheels simply weren’t transferring as much energy to the note as we’d like for far shots.
We pivoted to a top/bottom roller design, it was much more effective at transferring power to the note because the note was harder to compress that way. Think about the friction equation, where the amount of friction is directly proportional to the normal force - that normal force is much greater when squishing the note vertically.
High tide’s mid-season rebuild went 3/3 on beyond-wing line shots in their reveal: https://youtu.be/fPqb69pu1P0?si=QV6QYYY_83RO-xxI
Just to add onto what Brandon said, we had a fairly standard looking shooter and it wasn’t really that special compared to many teams. For range teams mentioned in this thread like 4414 and 3647 which have two sets of wheels will help with energy transfer into the game piece giving you extended range. We also had a relatively fast RPM feed into the shooter with minimal rip force between the feed and the shot. You can watch FUN’s BTB here.
Flywheel mass also makes a big difference in range, in the videos I shared we were using (still relatively light) AM Stealth wheels to shoot. For our offseason event we 3d printed wheels which were significantly lighter that reduced our range to the wing line for any kind of realistic shot in favor of much faster spin up time.
This is pretty cool. We initially designed our shooter with the intention on making half-court shots like this too, but quickly realized that what you gain in range, you lose in accuracy and alignment time, and that target gets really, really small out that far. We figured it was better to do close shots (mid-stage and in) and make the goal >90% of the time, rather than long shots and only make them <50% of the time.
OP said furthest shot; they said nothing about if it makes it in the goal or not. I want to see videos of robots shooting notes as hard as they can!