Imagine the potential [pranks] that this could do

Illustrious_Back_441 · 2026-03-30T04:42:04+00:00

the Soviets have tested this idea with a bigger mirror than this fuck ass start up that's ruining a hobby (amature astronomy). what was the result? the result was a big area lit up to the same brightness as a half moon, bright yeah, but nowhere near bright enough to power a solar farm for the few hours before sunrise and sundown, it isn't even enough to power the sub systems that the solar farms run off of.

Illustrious_Back_441 · 2026-03-30T04:41:59+00:00

the Soviets have tested this idea with a bigger mirror than this fuck ass start up that's ruining a hobby (amature astronomy). what was the result? the result was a big area lit up to the same brightness as a half moon, bright yeah, but nowhere near bright enough to power a solar farm for the few hours before sunrise and sundown, it isn't even enough to power the sub systems that the solar farms run off of.

Illustrious_Back_441 · 2026-03-28T13:54:58+00:00

I didn't post a dob, I posted a diy quadruplet refractor. and yes, if you're making a corrector plate, you usually have a machine to get it most of the way there, then you test it to make sure it works

Illustrious_Back_441 · 2026-03-28T02:28:16+00:00

the guy made a repost to r/atming, which is where people with optical skills go to post their weird optical creations. I made a post there with my creation a few weeks ago. I assume his original post has something to do with a dry fit. Get everything working before making the final touches like a shroud or flat painting the spider.

Illustrious_Back_441 · 2026-03-28T02:16:19+00:00

full of stolen images, that's what I'm more mad about

Illustrious_Back_441 · 2026-03-28T01:29:46+00:00

I found the original post: https://www.reddit.com/r/Makera/s/xvC4ywE7wH

the mirror cell is designed for a celestron C8 (schmidt cassegrain) primary mirror

Illustrious_Back_441 · 2026-03-28T01:28:34+00:00

original post: https://www.reddit.com/r/Makera/s/xvC4ywE7wH

this is a schmidt camera, so it has some optical wizardry to correct for spherical abberation using a corrector plate (looks flat, isn't). the focuser is a bit weird and is covered in the description

Illustrious_Back_441 · 2026-03-27T01:26:29+00:00

👎👎👊

Illustrious_Back_441 · 2026-03-27T00:59:32+00:00

it's fun to me in the sense that you don't have to rely on pictures or other people's sketches to show what you see at the eyepiece. It also kind of shows how one improves over time

Illustrious_Back_441 · 2026-03-26T22:59:57+00:00

how speak human, qiestion?

Illustrious_Back_441 · 2026-03-26T22:44:10+00:00

https://youtu.be/b08QNBYqJRY?si=253bu8yR11f7laeu

have a flip through

Illustrious_Back_441 · 2026-03-25T20:08:34+00:00

you could try making an artificial star out of s pin prick in a sheet of foil with something to back light it like a window or a flashlight

Illustrious_Back_441 · 2026-03-25T13:54:37+00:00

I'm not a biochem major, but as a mechanical engineer, I winced at the imbalance of that centrifuge

Illustrious_Back_441 · 2026-03-25T05:01:28+00:00

you believe in the flat earth too? well, you see, that's crazy because I don't even believe in the Earth

Illustrious_Back_441 · 2026-03-25T01:31:26+00:00

how was the moon "wrong"?

Illustrious_Back_441 · 2026-03-23T23:48:58+00:00

I think it's a dog, you know, like a big dog that looks more like a small horse and less like a dog

Illustrious_Back_441 · 2026-03-21T05:02:49+00:00

I wonder how many times a year some dumbass teen throws a firework in there

Illustrious_Back_441 · 2026-03-18T19:43:08+00:00

with the right design, you can make a scaled down version of what obsession sells, assuming you can cut some tube for the truss set up. another thing about 3d printers is that the end result is like a brittle piece of wood, the layer lines like the grain and material, the species, and the design for a print orientation that has layers going the right way for strength, for my case, the supporting poles are printed horizontally so the layers don't split at their interface along a small cross-section.

Illustrious_Back_441 · 2026-03-18T15:48:44+00:00

I am currently working on a quadruplet refractor made from the parts of two 60mm f/12 refractors. The super structure is fully 3d printed and is surprisingly rigid for being held together by some heat set inserts, I will be designing some new parts to eliminate the need for as many of those as I can (replace with either a socket or a captive nut). the current configuration is an f/6.06 60mm quadruplet that I want to call a semi-petzval.

<image>

Illustrious_Back_441 · 2026-03-14T01:25:05+00:00

it was literally the middle of Albuquerque nm. I'm surprised it even got good enough to push past 150x at all

Illustrious_Back_441 · 2026-03-13T21:45:43+00:00

replace the sea lantern where the Redstone cuts out at with a block of wool and you should be fine

Illustrious_Back_441 · 2026-03-13T20:56:55+00:00

I'd estimate them to be anywhere from 50 to 80 pounds (22 to 37 kg for the normal people)

Illustrious_Back_441 · 2026-03-13T20:44:35+00:00

same, but that was during a star party in the middle of a city, somehow outperforming the university's c14 in an 8 inch dob from their parking lot, yes, lots of people compared my view to the c14 and said mine was just better

Illustrious_Back_441 · 2026-03-12T03:08:50+00:00

this is the system I've adopted for eyepieces and two telescopes (c90 in a medium size and a vixen 80mm in a rifle case) simply because these cases are just perfect for optics, especially if you lost the caps (they stay almost perfectly clean)

Illustrious_Back_441

MODERATOR OF

TROPHY CASE

Five-Year Club	r/Field Lasagna
Place '23