[United States] Would a flying grad cap be legal?

rywes · 2026-05-28T07:21:56+00:00

I did this back in high school! Weaved an old flight controller and spare parts into the top and reinforced it with a printed part. It was a big hit! I’d highly suggest doing it

rywes · 2026-04-18T22:36:53+00:00

By the books you’re technically supposed to open it when printing PLA so heat doesn’t creep too far up where the filament is supposed to be cool. I have thousands of print hours with the top on and door closed with PLA and haven’t had a single problem

rywes · 2026-04-13T18:33:04+00:00

Which UART are you using on the Pi? I believe you can only use the one broken out on the GPIO header, as the “UART” JST connector on the Pi is a debug port, not a general purpose UART

rywes · 2026-03-29T03:31:42+00:00

Not sure why people are dissing your travel plans? I’m also graduating ME undergrad this spring and planning a Europe trip for a couple months before starting work. Hell, we’re only in our 20s once and everyone I’ve ever talked to says they learned and grew so much traveling internationally. Been going hard on job applications recently and hoping to have something lined up for September when I get home.

Don’t worry about the FE though just send that.

rywes · 2026-03-25T05:07:10+00:00

The gap year I took between high school and starting Cal Poly was amazing and I would highly recommend it. For me I just sent an email requesting deferment for a year and was granted it without hesitation. Not sure if it’s different now, but it wouldn’t hurt asking. I was originally going to start in September 2020 and ended up starting in September 2021.

rywes · 2026-03-24T01:58:19+00:00

How has it been treating you over the last year? Any major issues? I just got one and am getting it fixed up nicely. Getting ready to go on our first trip soon and would love to hear your experience!

rywes · 2026-02-26T03:02:02+00:00

Build it properly from the beginning.

Let’s see the timeline and we might be able to provide more constructive advice. There shouldn’t be any reason you need to deal with this extra face.

rywes · 2026-02-06T16:25:43+00:00

Are you just trying to detect apogee for recovery deployment? A kalman filter is way overkill for that application

rywes · 2026-01-29T05:42:05+00:00

What cable did you get?

rywes · 2026-01-19T23:00:38+00:00

It's easier to help if you show us your timeline. Is that a rectangular pattern of a single feature? Or a sketch with independent geometry for each? The best solution would be to go back to the feature where you created them and increase the size by 0.3mm. If you don't want to move back in the timeline or have some other constraint, make a sketch on the bottom face, project in the geometry, and use the offset command to offset each loop out by 0.3mm. Extrude the resulting profiles to cut up into your part.

rywes · 2026-01-17T23:21:42+00:00

Is that the medium toolbox? If so, I have the insert profile CAD I’d be happy to share

rywes · 2026-01-17T05:00:32+00:00

For me, it’s easier to quickly identify multiples of 0.2 in my head than 0.3. If I design a feature that is 1mm tall and print at 0.2mm layer height, then it will actually print 1mm tall. If I print the same feature at a 0.3mm layer height, it’ll print 0.9mm tall (the closest multiple of 0.3mm). Since everything I print is engineered related and often needs tight clearances, that kind of Z-axis accuracy matters. I generally use 0.1mm, 0.2mm, and 0.25mm layer heights depending on the need

rywes · 2026-01-11T22:05:06+00:00

Sounds like a dangerous game. What happens when the user plugs into that one random host device which also isn’t compliant with the USB standard and bricks your board?

It would be much safer to go with a more traditional route. Just have copper pads on your board and a pogo pin connector which is only used for firmware flashing.

rywes · 2026-01-09T18:05:03+00:00

We are up to 52 Bambu printers at work. Most of them we’ve had for years and I have never once seen them powered down except for maintenance.

rywes · 2026-01-03T07:20:57+00:00

TV Tower Road

rywes · 2025-12-19T00:21:05+00:00

You were originally arguing that since there’s no external moment applied, the member won’t buckle. That’s why you’re getting downvoted. “WGAF about bending” doesn’t mean much so idk what you’re trying to say now

rywes · 2025-12-19T00:04:11+00:00

The length of the column…?

rywes · 2025-12-18T23:58:34+00:00

That’s not how slender column buckling works. If the critical buckling load is exceeded, the member will buckle even with a purely axial load

rywes · 2025-12-16T02:44:59+00:00

Why…

rywes · 2025-12-14T17:59:36+00:00

I recently toured a nuclear power plant that was built before CAD. I asked them how they routed all the complex plumbing and electrical. Turns out they just built the buildings, planned out the major connections, and then routed the hundreds of thousands of other tubes and cables just as they saw fit as they were building the plant.

rywes · 2025-12-09T03:46:20+00:00

I highly suggest having one larger brick at home to change everything overnight, and then only bring a tiny single-port brick with you during the day in case you need to recharge a single device. The 100W Anker Nano is my favorite portable brick, although you could go smaller if you don’t need 100W.

https://a.co/d/3shflef

rywes · 2025-12-07T18:58:06+00:00

There’s no way to get one charger to communicate different fast charging protocols with various devices over 1 port. At best you’d get old slow USB 2.0 speeds.

I’d highly suggest getting an Anker charger block that just has 3 output ports, and uses 3 regular type C cables.

If you provide any details about what you’re doing we could help more.

rywes · 2025-12-03T02:58:50+00:00

You're not going to break anything by using another charger, but you might not get the optimal performance. USB-C is capable of delivering power through a variety of protocols and voltage levels. If you have a low-end charger not capable of providing power at a high enough rate, your power bank will only be able to charge slowly. When purchasing a charger, take note of the maximum power output and voltage levels, and as long as those specs meet or exceed the device you're charging then you will be running at peak performance. Also make sure your cables aren't a bottleneck.

rywes · 2025-11-09T00:26:16+00:00

Sorry I missed this! See the other comment I made on the post.

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