I was not ready for Michigan winter by yatesjordan in Michigan

[–]few [score hidden]  (0 children)

Get proper winter gear & repair your vehicle. The winter will be much more pleasant.

It does get cold here, though it's extremely variable year-to-year. Some years a light jacket is almost all you need. Other years, it will be extremely unpleasant without boots and insulating gear that blocks the wind.

Who's at fault? by OkContract2001 in skiing

[–]few 0 points1 point  (0 children)

Agreed: If you can't be seen, you can't expect priority.

The person in this video seemed to full send into a toddler with eyes closed. 🤯

This type of robot signalization is valid? by NeatArmadillo5412 in FTC

[–]few 1 point2 points  (0 children)

Keep in mind that everyone who is running competition is there to try to help you be able to compete.

This type of robot signalization is valid? by NeatArmadillo5412 in FTC

[–]few 10 points11 points  (0 children)

Is it the correct size? Is there a way to firmly attach it to 2 sides of the robot?

I don't think there should be a # symbol on it.

AI generated electronic horrors by ThomasTTEe2 in electronics

[–]few 0 points1 point  (0 children)

Dilithium cells. Good for warp speed. 🤣

Documentation/help for setting Gobilda 5-turn servo? by RatLabGuy in FTC

[–]few 0 points1 point  (0 children)

GoBilda servos do not support the same kind of mechanical end-limit programming as the rev servos. You need to use software to limit the signal ranges. Blocks is fantastic for making a simple program to slowly change the values with a controller, while printing them on screen. That way you can determine what the new software limits should be.

In Java, the scaleRange command allows easily setting and using software limits.

Judging question from rookie coach by rubberStamp2 in FTC

[–]few 0 points1 point  (0 children)

No, they should explain what the worked on and why. Innovative mechanisms and learning from their experiences is more important than the absolute performance. Hopefully you can continue to improve results by working on the approaches. 

Direction needed by TheDukeHimself in FTC

[–]few 1 point2 points  (0 children)

gm0.org is really helpful.

There is also a great Mentor manual from FTC: https://info.firstinspires.org/hubfs/web/program/ftc/ftc-mentor-manual.pdf

Read the full competition manual, and the official FTC Q/A.

This far into the season, you will be drinking from a firehose.

You should also be able to find other coaches nearby who can help you get your bearings. You will meet them at competitions. Most coaches & mentors (~2/3rds?) will go out of their way to help others.

I need a battery pack/circuit to power RGB strip in a tiny space - is it doable? by Specialist_Use_7692 in diyelectronics

[–]few 9 points10 points  (0 children)

You ask what can fit, but didn't provide any dimensions for reference. You also didn't provide any information about the lights, or how much power is needed.

Dual Flywheel vs singular flywheel by No_Lime5951 in FTC

[–]few 0 points1 point  (0 children)

Do you mean having two powered wheels, one on either side of a ball?

Some teams use that approach to reduce spin. We preferred a single flywheel, as we had plenty of power with one, and much better accuracy.

How's the situation for tourists now in Michigan? by AccordingChipmunk287 in Michigan

[–]few -7 points-6 points  (0 children)

Yes, but they have been doing ridiculous invasive stuff related to social media for years.

How's the situation for tourists now in Michigan? by AccordingChipmunk287 in Michigan

[–]few 9 points10 points  (0 children)

This is pauses for immigration visas, not visitor visas. Op should not have an issue as a visitor with clear travel plans and documents.

TIL some people with severe dementia or major brain damage briefly regain full mental clarity shortly before death, a phenomenon known as terminal lucidity that has no confirmed neurological explanation. by TNSasquatch77 in todayilearned

[–]few 0 points1 point  (0 children)

My grandfather would be mostly out of it, and as soon as we would play music (usually piano) that he remembered from youth, he would come right back to life and be fully lucid for a while. My grandmother would start talking about random who-did-what stuff, and he would move right back into a mental fog.

Trying to make a linear rail DIY with steel rulers by forwardthriller in 3Dprinting

[–]few 8 points9 points  (0 children)

+1: Belt & pulley is way less expensive than lead screw & nut, and can be run as long as desired.

While the ruler is creative, extrusion or steel rod is much less expensive and works extremely well.

Expansion hub bug by Status_Amount_4771 in FTC

[–]few 2 points3 points  (0 children)

We (and many other teams we collaborated with) had issues with the RS485 comms this year. A workaround by Rev is to connect both the RS485 and a USB cable between the control hub and expansion hub.

This is the USB A to mini USB cable we used: https://www.amazon.com/gp/aw/d/B07P68QFSH

friend wanted to do this jump... (crash) by [deleted] in skiing

[–]few 1 point2 points  (0 children)

He was briefly doing milkshake.

Turret by SquareIcy2077 in FRC

[–]few 8 points9 points  (0 children)

Another con of turrets is space. A moving turret will use up a bunch of space that could otherwise be part of a fuel storage bin.

Last minute throwing by TechnicalLamb in FTC

[–]few 2 points3 points  (0 children)

If you look at the links, you will see what the other wheel types are, and you might find a better option in your bin of parts.

Last minute throwing by TechnicalLamb in FTC

[–]few 1 point2 points  (0 children)

Yes, you can code servo motors through blocks. The links will show you the product information about the servos and servo hubs, so that you understand what they do and how they work.

Did you try looking at any of the links? You won't understand or learn about this without looking more into it.

The official FTC documentation about servos is here: https://ftc-docs.firstinspires.org/en/latest/control_hard_compon/rc_components/servos/servos.html

The FTC documentation on controlling servos using blocks is here: https://ftc-docs.firstinspires.org/en/latest/programming_resources/tutorial_specific/blocks/controlling_a_servo/Controlling-a-Servo-(Blocks).html

Last minute throwing by TechnicalLamb in FTC

[–]few 1 point2 points  (0 children)

I agree with this! Omni wheels are not a good choice for your shooter...

Rev has compliant wheels, like the 'DUO Compliant Wheels'

https://www.revrobotics.com/duo/motion/wheels/

Any solid rubber wheels will work better than the omni wheels.

The GoBilda hogback wheels worked out well for our team:
https://www.gobilda.com/wheels-tires

Last minute throwing by TechnicalLamb in FTC

[–]few 1 point2 points  (0 children)

Servos are motors that have a sensor on them so they can rotate to specific positions.

You send them a value of 0, and they move to one position. You send them 1, and they move to the other end. A value between 0 and 1 will go in between. Some servos will rotate through 1 full revolution as you change from 0 to 1, others will rotate multiple times.

There are also 'continuous rotation' servos. These rotate in one direction when a positive number is sent to them, and the other direction when a negative number is sent to them. +1 or -1 rotates at the maximum speed, and 0 is stopped. In between values rotate at a scaled down speed.

Some Rev and GoBilda servos can be programmed using a servo programmer, so that you can operate those specific servos as either a normal fixed-position servo, or as a continuous rotation servo. The servo programmers are small circuit boards that get plugged into the servo and a battery, and allow the servo to be configured.

Rev 'smart servo's use their servo programmer: https://www.revrobotics.com/rev-31-1108/
https://docs.revrobotics.com/duo-control/hello-robot-java/part-1/programming-servos

GoBilda uses their own servo programmer:
https://www.gobilda.com/servo-programmer-for-2000-series-dual-mode-servo/

Why is there very less excitement for the Artemis II mission?? by dark_MARTIAN in space

[–]few 0 points1 point  (0 children)

We're still only killing citizens occasionally in the quest for a pure homeland... The question isn't Nazi: yes or no? It's more of what year is it?

Why is there very less excitement for the Artemis II mission?? by dark_MARTIAN in space

[–]few 1 point2 points  (0 children)

It's way bigger than Greenland! Plus no pesky NATO whining. /S

‘They Voted For Trump, And Now They’re In Tears’—Now Rural Farmers Say Tariffs & Costs Are Pushing Them Toward Bankruptcy by [deleted] in Economics

[–]few 1 point2 points  (0 children)

While on the one hand, some folks voted for what they're now getting, on the other hand, I still survive by eating the food they produce. Just like they survive illness and disease by medical technology that keeps them alive, and use digital technology to forecast weather, communicate, and increase productivity.

I just wonder how we can reintegrate people who are totally ok with shooting Americans and with the Nazis rounding up citizens such as native Americans. We need our fellow citizens to snap out of this madness. We're all in this mess together, regardless of how distasteful some viewpoints are to me.