2363 Triple Helix week one prototypes

[Lil' Lavery]

Originally Posted by JesseK

We're thinking about drown-down pads (or similar) to assist in stability and angle adjustment for high goal shots. Strategic placement could also mean they assist with getting stuck in the moat. Our prototyping drive base didn't get stuck unless it skewed far left/right, but that base was also 3" too long w.r.t. the current actual CAD design.

For those of us playing at home, what are "drown-down pads?" I have a guess as to what you mean, but I'm not really sure.

[JesseK]

Originally Posted by Lil' Lavery

For those of us playing at home, what are "drown-down pads?" I have a guess as to what you mean, but I'm not really sure.

Whoops... drop-down pads. I was multi-tasking, sorry

[ToddF]

Originally Posted by bEdhEd

Have you tested that drive base on the moat?

We tested it right at the end of last night's meeting, with no added weight on the robot. I didn't take video, as I don't consider tests with just the drivetrain weight to be conclusive. That said, driving slowly we did get stuck, though not badly, and the driver was able to free the robot. With a little practice, and the right technique, the robot could traverse the moat every time. We'll see if these results are repeatable with full robot weight.

[Nate Laverdure]

Originally Posted by asid61

How much compression did you stick on the shooter?

About 10%

Originally Posted by sanddrag

what amount of center drop you have on the drivetrain

.125"

Originally Posted by sanddrag

what diameter the Colson shooter wheel is

2.5"
VexPro p/n 217-4046

Originally Posted by sanddrag

how much you are gearing up the CIM?

1:1.21
AndyMark SpinBox

[rsisk]

I had the pleasure of visiting the Triple Helix shop over the Christmas holidays, it's amazing the testng they get done in a very small space.

Good job team!

[PayneTrain]

Originally Posted by Nate Laverdure

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Cool. If you guys are gonna roll with chain in tube like I think you did in '15, it would be very... interesting to attempt it with the 3/16" we tried and liked. Some people are also trying anything up to 3/8". I regret that there is no way we can run our setup AND constantly toy with the drop, so we'll probably pick a number in the range, take advantage of the pressure adjustments and let the drivers feel it out.

Glad we don't have to face y'all in districts so we can iron our eventual litany of gremlins out (: Good luck!

[Nuttyman54]

Looks great! Mind sharing what wheel base and wheel track you're showing? We've been trying to figure out the best spacing but we haven't seen a traverse as clean as that.

[Kevin Sevcik]

It seems like your top heaviness is probably helping you over the rock wall. Keeps you wheels up longer so the front ones hit the wall at a better angle. I'd be interested how things work with a lower CoM closer to what you'd normally be running.

Also I probably don't have to remind you that shooting a single brand new ball consistently does not make a consistent shooter.

[ToddF]

Originally Posted by Kevin Sevcik

Also I probably don't have to remind you that shooting a single brand new ball consistently does not make a consistent shooter.

Nope. I'm still having PTSD flashbacks from the nightmare of trying to tune our foam basketball shooter in 2012.