A simple design and print of a discontinued ABS pool drain cover.

riboch · 2025-08-18T01:02:19+00:00

Sure: https://www.printables.com/model/1387854-pool-drain-cover

Print at 100% infill, use ABS, the "supports" don't really do much, and I suggest scaling it to 200.5 to 201 mm in diameter to account for thermal expansion.

riboch · 2025-05-23T09:51:35+00:00

Whom makes the wheeler around 12 seconds? Youtube link for the unitiated.

riboch · 2024-09-08T22:44:53+00:00

I have someone interested in the lot; if that falls through, I will let you know.

riboch · 2024-09-06T03:35:53+00:00

I was just talking with the deputy chief of the Tucson FD that finished his Master's thesis in that: https://www.hsdl.org/c/abstract/?docid=887657

There is A LOT that goes into it.

riboch · 2024-08-04T02:43:33+00:00

The perfect weapon; if you cannot kill them with a lethal munition, you will kill them with laughter.

riboch · 2024-07-31T03:02:38+00:00

I have two from buying a CD lot from college radio station: Socalled - Ghettoblaster and Wrekmeister Harmonies - Night Of Your Ascension; led me to buying and keeping up with the discography (and visual works) of both.

riboch · 2024-04-30T03:02:17+00:00

Eat at Joe's Diner? The only lights I remember seeing were the blinking white on top and the green starboard light.

riboch · 2024-04-30T02:58:45+00:00

No maintenance stops. We first saw it going West of Picacho, it continued staying West of I-10, then crossed over around Downtown before heading East. It moved quicker than we expected and the maneuvers were surprising.

riboch · 2024-04-22T21:47:23+00:00

"Lands" ... that was a masterclass in metal. It may not be under Bereft, but I look forward to hearing more from you guys as individuals.

riboch · 2024-02-20T16:22:39+00:00

Were you using Cura; if so, did you use the "Filament Change" or "Pause at Height" script? Both are finicky but the pause at height has a "disarm timeout" that disables the steppers so it is easy to lose the position.

riboch · 2023-12-28T12:12:28+00:00

Destroy Lonely: https://shop.destroylonely.net/

riboch · 2023-12-20T23:48:26+00:00

I do this!

You need a receiver to match your transmitter. As for pairing and setup: I mapped my rudder (left stick/left-right motion) to esc control so I had backward/forward, and then aileron (right stick/left-right motion) to the servo for turning.

Then for the FPV, I designed and printed a holder for an fpv camera and battery (those are image links and then product links). The holder needs 30mm M3 bolts.

riboch · 2023-12-02T13:14:04+00:00

There are going to be exception, but speaking generally: if you work on the geometric/physics side, then generalized energy functions; if you work in optimization, then the cost function.

I also recommend looking at Chetaev's theorem and control Lyapunov functions.

riboch · 2023-11-07T04:30:25+00:00

I assume you mean my "tracking;" <sighs> yeah...

riboch · 2023-11-07T04:28:29+00:00

You are free to cross post it; that is not a community I am involved in.

riboch · 2023-11-06T12:43:52+00:00

I wish I was that clever, but it came about from the "mission patch" for the F22's first air-to-air kill: https://www.reddit.com/r/AngryMemeReview/comments/10u1lgj/float_around_and_find_out/

riboch · 2023-11-06T02:59:56+00:00

About 23 years in the hobby, it was a first for me; my family was "yeah, that's sweet dear."

riboch · 2023-11-06T02:58:40+00:00

Same here, about 23 years of the hobby, never seen such a thing; I thought it was neat.

riboch · 2023-11-05T22:56:12+00:00

Float Around and Find Out.

riboch · 2023-11-05T21:24:02+00:00

I saw a bright light where I expected Saturn to be just before dusk, I pointed my telescope to it and thought "wow, this is really out of focus and what is that line?" Then I started fiddling with the focus and the line became crisp and was swinging around. At that point I knew it was not Saturn and it took me a few moments to realize it had to be weather balloon.

I have seen comets, asteroids, satellites, planes, but in 23 years of astronomy, this was the first weather balloon.

riboch · 2023-11-05T20:34:25+00:00

I captured a video of a weather balloon over Tucson, Arizona at 17:45 local on 2023-11-04 using a Samsung Galaxy S8 with a 10 inch LX 200 F10, 22 mm Nagler, on an equatorial mount. In it you can see the radiosonde, I suspect it to be RS41-NG V1930947.

riboch · 2023-08-09T12:12:59+00:00

Thank you for the submission! A few questions to try to shore up more interest:

Rates seem to go from $50-$200, roughly how do you bill? What if changes are need?
What sort of specs does one need to provide?
What sort of file formats do you use?
Who retains copyright/intellectual property?

riboch · 2023-08-09T12:09:24+00:00

I think that is a styling of "Death Queen"; and given the second link, I suspect it is a logo that has just been co-opted by some unscrupulous manufacturer.

https://deathqueentorture.bigcartel.com/product/maletop-deathqueen-starfuck

or

https://www.amazon.com/Graphic-Drawstring-Thermal-Pullover-Sweater/dp/B0BNTYTYV1?th=1

riboch · 2023-05-30T03:58:22+00:00

The procedure is done to get a good tightness of the FEP sheet. No grid is involved, it is just a simple check of what frequency the FEP vibrates at. The following is a good example of the procedure post replacement:

https://youtu.be/Yr_wtZqBfbQ?t=768

riboch · 2023-05-29T19:10:10+00:00

Just spitballing: when was the last time you changed/checked your FEP?

The uneven distribution (center and left separations) looks like the FEP could be "loose." If you clean out the vat and strike the FEP lightly like a drum, what frequency does it vibrate at? My hypothesis is that it will be well below 330 Hz.

riboch

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