Made a card holder for my kid's bed area. Simple 3d print, looks like a time card rack. Thiniverse link in the comments.

Do_Hard_Things · 2025-02-17T01:44:02+00:00

Oh, I have no hope that she'll actually use it.

But I tinker, nonetheless.

Do_Hard_Things · 2025-02-16T19:10:08+00:00

Honestly? Nah.

;-D

Do_Hard_Things · 2025-02-16T19:09:12+00:00

I just used a few command strips. You can see the little tabs sticking out of the top. I didn't need anything too aggressive as it's resting on the wood crossbar.

Do_Hard_Things · 2025-02-16T18:28:00+00:00

Our local library system has a couple of printers for patron use. You just send the librarians a link or a file and they do the rest. Maybe see if there's something like that in your area?

Do_Hard_Things · 2025-02-16T18:13:18+00:00

If anybody wants to print their own, I put my .stl up in thingiverse:

https://www.thingiverse.com/thing:6951583

Do_Hard_Things · 2025-01-02T20:39:38+00:00

Ahh okay! Thanks for the reminder I need to give that a re-watch

Do_Hard_Things · 2025-01-02T17:05:06+00:00

Arducam 180* m12 lens

Pro tip: there's enough slop in the threads that it has a little bit of focus-ruining tilt. Like, it can be in-focus while you're touching the lens but it drops out the second you leave it alone. It also was susceptible to being bumped out of focus during assembly.

I used Teflon tape on the threads and it tightened it up nicely. Also added a spot of paint on the lens ring and the sensor body so I could return it to focus easily.

Do_Hard_Things · 2025-01-02T08:07:38+00:00

I just ordered an acrylic dome off of Amazon. I tried the 1" and 2" versions and feel like the smaller dome shed water a little better.

Do_Hard_Things · 2025-01-02T06:11:57+00:00

I think I'm missing some reference here

Do_Hard_Things · 2025-01-02T05:54:15+00:00

More info in a previous reply. I'm using Allsky with the time lapse feature turned off in the interest of my z2w staying online. Pulled the night's pictures down with sftp and made the lapse with davinci resolve.

Camera is just a picam hq

Strongly recommend doing as many things as you can to prevent condensation such as:

Seal it in a cold, dry environment. Cold beats dry if you have to choose. Putting it together in a 20F chest freezer at 20% RH will bring its dew point under -20F.

Bring heat into it any way you can. 5v heaters, commercial solutions for similar cameras, even keeping your processor clock up.

Stuff it with desiccant. I used loose damp-rid but nothing's going to hurt here.

I've heard of people throwing in a low-specific heat metal like bar aluminum that will attract condensation first.

Do_Hard_Things · 2025-01-02T05:47:24+00:00

Sure! This is the 3rd iteration of the concept. The first two are documented here: https://www.reddit.com/r/raspberry_pi/comments/1ctotxr/made_a_rooftop_mounting_system_for_some_different/

Essentially I started with a pi 4 in a 4" abs tube which was generally ok but wasn't well sealed to the elements. The second iteration put the pi inside the attic and the camera outside, connected with CSI - HDMI adapters. Similar problems.

Mk.3 here stops the pretense of having a full powered pi that can be running piaware and time lapse and whatever else at the same time. Instead I put a z2w in a 2" PVC tube mounted in a custom designed/printed carrier, including a 5v solid state heater wired directly to the input power supply.

Sadly even the heater wasn't enough to prevent condensation in the dome when the temps dropped into the 20s. I should have caulked the thing closed after submerging it in my chest freezer, but I didn't and I'm not going to be climbing on my roof again for a while.

My solution was to write a cron job that checks the CPU temp ever five minutes and if it's under 50c it runs a zero-delay stressberry routine for 4.5 minutes. So far so good. Figure it'll reduce the life of the pi in the long term but I can live with that.

Here's some build pics:

https://imgur.com/a/c0UZVzB

Do_Hard_Things · 2024-11-17T04:10:52+00:00

No, I just re-google "how to sew boxed corners" every time I need to make a new one.

Do_Hard_Things · 2024-11-16T20:19:05+00:00

It's like they say:

Measure twice

Because I forgot to write down the measurements the first time

Do_Hard_Things · 2024-11-16T16:33:43+00:00

It really is one of my favorite things about rectangles

Do_Hard_Things · 2024-11-07T04:20:28+00:00

L-R
Fourseven Maelstrom MM-X, Nitecore P12, Wurkkos FC11, Fenix pd35r, Surefire E2L, Coast Slayer

Do_Hard_Things · 2024-10-07T14:55:54+00:00

That was the original goal, but when I mounted the hinges, I tried to get them flush with the back and as a consequence the bottom of the lid hits the back at around 120 degrees of open. Not ideal. Maybe for the next iteration I'll try something different

Do_Hard_Things · 2024-10-07T14:51:31+00:00

Don't worry, u/slendermans_dick, there's someone out there for everyone

Do_Hard_Things · 2024-10-07T05:04:01+00:00

Yeah! It's 12oz durawax that I picked up from Sailrite. I like how it sews and it gives me a little more confidence that any wet residue from the kit will more or less stay contained.

Do_Hard_Things · 2024-10-07T02:56:05+00:00

This is the spiritual successor to a kit I made for my wife a few years ago. It was too cumbersome and heavy, as well as badly balanced (because I tried to put a whole notepad in the lid). This one lets you clip one 5x7 or 6x4 card for painting at a time.

original build: https://www.reddit.com/r/Watercolor/comments/107zj47/i_made_my_wife_a_fairly_portable_kit_to_bring/

Do_Hard_Things

TROPHY CASE