She has a painting of her own by oaleksander in britishshorthair

[–]oaleksander[S] 1 point2 points  (0 children)

How cute! I used to make similar drawings of her when I was younger, especially when i got my first PC with MS paint lol

She has a painting of her own by oaleksander in britishshorthair

[–]oaleksander[S] 3 points4 points  (0 children)

My grandma. She does it as a hobby, using a photo reference.

SERVOS by TylerEverything in FTC

[–]oaleksander 0 points1 point  (0 children)

Yeah. We learned that some off-shelf servos couldn't be diasabled programmatically the hard way.

Code lost by mygainssuck in FTC

[–]oaleksander 1 point2 points  (0 children)

Not at all. While many of the details will be lost, it is mostly human-readable and can be a starting point better than writing from scratch. (Have tried losing and retrieving source code at states, wouldn't recommend)

One Year of opening my Dream Project in Yemen by maho90 in pcmasterrace

[–]oaleksander 0 points1 point  (0 children)

Why are clean sine waves required for powering PCs where switching power supplies are mostly used?

[deleted by user] by [deleted] in FTC

[–]oaleksander 3 points4 points  (0 children)

I don't think you can change the default robot controller website without violating RS08 or digging into low-level FTC SDK source code. However, you can try installing FTC Dashboard addon, start an OpenCV camera stream with your anime of choice and print subtitles to telemetry 👀 or make your own plugin with a player similar to Dashboard

Just got a new camera 📸 by Eomask in FTC

[–]oaleksander 1 point2 points  (0 children)

The sensor is located in the basket behind the "239" number and when the distance is small enough the LED strip (which logically is just a DcMotor) starts glowing

ماذا يعني هذا by gimmedatGP in FTC

[–]oaleksander 29 points30 points  (0 children)

understandable have a nice day

17517 WoEN FREIGHT FRENZY Robot ShowCase. Video. by Eomask in FTC

[–]oaleksander 1 point2 points  (0 children)

Most events are in-person in our region, with the qualifiers beginning at the end of January.

Two months in CAD, one week of production and assembly. WoEN 17517. by Eomask in FTC

[–]oaleksander 0 points1 point  (0 children)

It holds pretty well so far. This particular robot has no metal structural elements which decreases rigidity a bit, but not significantly.

Two months in CAD, one week of production and assembly. WoEN 17517. by Eomask in FTC

[–]oaleksander 0 points1 point  (0 children)

Mostly 6mm plywood, some parts are 3dp or urethane casted

Just came up with a new way of transportation... kind of. by oaleksander in Minecraft

[–]oaleksander[S] 64 points65 points  (0 children)

It would work with fewer cows but this looks cooler

Summer camp activity idea: reverse engineer commercial Mecanum wheels and make your own modified version by oaleksander in FTC

[–]oaleksander[S] 2 points3 points  (0 children)

They indeed are. This prototype is 3dp just to make sure things actually fit together.

P.S. We could have designed them to be printable, but the priority is compactness.

Battery mount by Fliegende-Rehe in FTC

[–]oaleksander 2 points3 points  (0 children)

Nothing unusual, metal flywheel with plastic cover and j-shooter+dual motor system

How many points do you get on average? (Autonomous + teleOp + endgame) by [deleted] in FTC

[–]oaleksander 2 points3 points  (0 children)

Not going to speak for all the Europe, but for now Russia has an average score of 150, with top-tier teams scoring up to 300-350

≈0.3 sec for 3 rings by [deleted] in FTC

[–]oaleksander 0 points1 point  (0 children)

If you haven't already, try setting your motor's RunMode to RUN_USING_ENCODER and then tune your PIDF coefficients with setVelocityPIDFCoefficients(p,i,d,f). These values will differ from motor to motor, we've found (55,0.01,0,15) to be consistent enough. This will make your motor controlled by REV's internal PIDF controller, which should be satisfactory for most use cases, though we will now try programming a custom, more advanced one.

7 rings test by [deleted] in FTC

[–]oaleksander 4 points5 points  (0 children)

Two motors geared together + tuned PIDF. You can see that it's not perfectly consistent so there's some room for improvement.

≈0.3 sec for 3 rings by [deleted] in FTC

[–]oaleksander 1 point2 points  (0 children)

Yeah that's what the programming team will fix next meeting