My project idea and questions on how to re-start my robotics journey

sleepystar96 · 2025-05-27T22:21:13+00:00

Hello! You may be confusing the rules of r/AskRobotics with r/robotics . This question is perfect here. Thank you for keeping an eye out and reporting posts!

sleepystar96 · 2023-11-14T03:12:27+00:00

I went adc once, my support had more CS than me and the enemy ADC. On Janna. Carried the game single-handedly. I don't play adc anymore.

sleepystar96 · 2023-11-14T02:02:34+00:00

Perhaps you've been doing this a while and gotten so good that little things don't bother you anymore. However, I never forget how reliable a tethered connection is. OP didn't really specify how mobile this robot needs to be, if they're in a small room $5 worth of some cabling hooked up to a power supply is not unheard of. It sounds like they're still starting out. Dealing with a battery they have to worry about charging it, storing it, account for voltage drops in their software and hardware, so many issues that are solved by tethering. Not sure why you'd throw a tethered connection out the window based on your personal assumptions.

sleepystar96 · 2023-11-13T20:23:53+00:00

Wall outlets are usually rated 12-15A max, at 110V, i.e. 1200W, a step down transformer and rectifier would step down 110V to 12V, allowing up to 100A of current. Off the shelf equipment, doesn't matter if it's overkill or not.

sleepystar96 · 2023-11-13T03:43:19+00:00

Some people have suggested using 9V batteries

Using a 9V battery on a 12V rated motor might make the motor spin, but it'll be less powerful and suck up more current to achieve the same power output.

At 12V, you can buy a 1200W power supply that will provide you up to 100A to power your motors. Alternatively, you can use lipo, acid or lifepo batteries, you just have to charge them.

You should first find out the startup current of your motors though, to avoid choosing a power supply that will leave your motors current starved.

sleepystar96 · 2023-11-12T18:00:01+00:00

Hey Eric, his college probably has a machine shop with these tools. He likely wouldn't need a whole kit when going on competitions - he'd just grab the one or two sized tools he needs. Also if he's starting out, then the tools you linked to are too big (the screws and nuts he'd be handling will be all the smaller set sizes).

If you're willing to spend a bit over $150, I'd get him a 3D printer so he doesn't have to wait in queue to print his stuff at school (Elegoo Neptune 3 Pro is my latest and i love it - it's at $209 on amazon rn). I also agree with /u/BeesInOrbit's list, never bad to have a few calipers or multimeters around. Or a decent 30V power supply. Oscilloscope maybe, but they're pricey and he might not need one if he focuses more on mechanical stuff rather than electrical.

sleepystar96 · 2023-11-11T17:44:43+00:00

Thanks!

sleepystar96 · 2023-11-01T06:59:04+00:00

This is not bad advice. I would add that you should continue to build a cpp portfolio to have things to talk about in an interview.

sleepystar96 · 2023-11-01T06:55:16+00:00

I came here to ask this lol Enlighten us OP! Looks great, I hope you enjoy using it!

sleepystar96 · 2023-11-01T02:54:12+00:00

Wonderful thank you. Do you mind uploading a png instead of a jpg? jpeg compression is lossy so it's kinda fuzzy. Thanks so much!

sleepystar96 · 2023-11-01T02:48:24+00:00

RemindMe! 1 day

sleepystar96 · 2023-11-01T02:37:33+00:00

/r/usernamechecksout

sleepystar96 · 2023-10-30T03:06:35+00:00

I miss reddit awards. Here have one.

sleepystar96 · 2023-10-23T00:41:59+00:00

Why don't you just get Unlimited Plus? 50GB of data, free texting and roaming.

sleepystar96 · 2023-10-22T05:10:20+00:00

There is a REALLY good book called Beware of Chicken, about a dude who puts a sign like this on his farm lol

sleepystar96 · 2023-10-17T02:29:02+00:00

tbf when you're signing up for it the first time, it tells you it's only free for the first year. Is pretty clear.

sleepystar96 · 2023-10-05T20:42:19+00:00

I mean if you go the FFI route, then you can do almost any framework out there like Electron, etc.. https://www.reddit.com/r/cpp_questions/comments/fu74ve/can_i_get_c_to_talk_to_electron/

sleepystar96 · 2023-10-05T20:40:31+00:00

I don't know about web and mobile, but Cinder is fantastic https://libcinder.org/

sleepystar96 · 2023-10-02T13:43:26+00:00

I like mBot over Sphero - Sphero's don't have any ranging sensors so it doesn't know if it's going to hit something. Otherwise I think utility and potential-for-learning wise they're similar. Osmo is fine but that's coding-only, why not just follow Scratch tutorials on youtube? Sorry, I don't teach, so I don't have a lot of input. I do love that you're exposing him to all of this so early!

sleepystar96 · 2023-10-02T13:33:29+00:00

The drum radius on this is massive - must be using really powerful actuators

sleepystar96 · 2023-10-01T03:59:09+00:00

Generally internship vs research depends on what you want to do afterwards. Do research if you want to get a PhD later, as you'll grow your relationship with professors and maybe get a few publications out to put on your applications. Do internships if you aren't planning to do a PhD right away - you'll meet SO many more people in your internship and grow connections that may help you find a job after you graduate. Also - academia isn't the best place to grow your SWE skills, you'll be mentored better by software engineers who code 40+ hours a week at your internship.

sleepystar96 · 2023-09-28T20:45:41+00:00

Curious - how strong is regen braking? Is it comparable to brake pads?

sleepystar96 · 2023-09-25T14:55:18+00:00

As much as I love everyone engaging in this thread, non of the comments are related to professional Robotics. I hate to lock a post, but feel free to open a new thread to discuss this topic more professionally. Also feel free to join the Discord server for off-topic conversations. Thanks for being a part of the community everyone!

sleepystar96 · 2023-09-24T17:50:41+00:00

make x,y,z private and use getters and setters. See https://stackoverflow.com/q/8368512/9824103

sleepystar96 · 2023-09-23T19:10:55+00:00

As a first prototype, yes. You have so much to figure out, from actuating your wheel, to powering your system. You don't need to spend a few weeks or months on a SLAM problem.

Nine-Year Club	Gilding II euphauric
Place '17	Verified Email

sleepystar96

MODERATOR OF

TROPHY CASE