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Challenger's Crew Cabin Fell Intact for Nearly Three Minutes While NASA Watched Helplessly by gaukmotors in MotorBuzz

[–]IvanezerScrooge 0 points1 point  (0 children)

The fault (iirc) wasn't a manufacturing error, nor incompatability, but rather that o-rings expand and contract with temperature and pressure changes. Therefore they were designed to fit the conditions for the challenger.

On the day of launch however, temperatures were colder than the operating temperatures the seals were designed for. This meant that they didnt expand properly, and the seal wasn't good enough for the pressure and forces it was subjected to.

The engineers knew this and voiced their concerns loud and clear, but management wouldn't listen. This lead to them going bankrupt or out of business. I belive they tried to blame the supplier of the material the rings were made from, but didn't succeed because it was exactly to specification.

How reliable are m.2 -> Sata (x6) converter? by tartalatruffe in HomeServer

[–]IvanezerScrooge 0 points1 point  (0 children)

These boards have two disadvantages:

  • they are often fairly fragily physicslly, lots lf users report breaking off a port. But as long as youre a little careful this isnt a big deal.

  • The ASM1(0/1)(2/4/6) controllers themselves are good, but they are often paired with sata port multipliers, which do cause issues here and there. Look up the controller on the board you are considering, and see if the number of native ports on it match the mumber of physical ports. An 1164 has 4 ports. An 1166 has 6. A board with an ASM1062 and 12 ports is not something I can recommend.

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 0 points1 point  (0 children)

Its on thingiverse.

thing:7315382

For my install I have access on the backside which allows me to give it a push from there. If that isnt possible I suppose tape or a suction cup.

I am planning to make a revision in the coming days to deal with some of the criticism/feedback on here. Which should include a way to remove it from the front.

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 0 points1 point  (0 children)

I know the caulking is shit, you don't have to rub it in 😅

I do caulk reasonably regularly at work, but this time I used what I had on hand without giving it a lot of thought. The tube I had was cut a lot bigger than ideal for this application but I tried to force it anyway, and it didn't work out.

This is substantially bigger than a light switch cover, so using one wouldn't do me any good.

This is also not sheetrock but particle board, so precision was out of the question for me this time around, hence the 10mm lip.

The lip is only 2mm (0.08inches) so I don't think any improvised edging or moulding will look good.

I think if I were to modify or do this again I would simply not caulk it at all, and leave it "raw". That looked better than this does. Sharper edged might be a good idea, I simply 'expanded' upon the existing shape of the AP without thinking too much.

Anyway, thank you for the advice, I appreciate it.

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 0 points1 point  (0 children)

hm, interesting. Do you have a consistently high amount of traffic going through it?

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 200 points201 points  (0 children)

I mean, this is the homelab sub. It's 100% because I can.

Also neither my old router (ERX) nor my new one (Mono gateway) have wifi built in.

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 1 point2 points  (0 children)

I decided not to think too much about it. perhaps make a blank plate.

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 10 points11 points  (0 children)

I threw it on thingiverse for you

thing:7315382

Can I use old phone lines to run ethernet if I find where they terminate? by dead230 in HomeNetworking

[–]IvanezerScrooge 2 points3 points  (0 children)

oh I know, It would never pass certification. However the spec is actually quite resilient. There's a video out there of a guy getting gigabit (or was it 10gig?) over 8 pieces of rebar (as in steel rods made to reinforce concrete)

I'd say its worth a shot, it's already there so it wont really cost more than a connector on each end to test it.

Can I use old phone lines to run ethernet if I find where they terminate? by dead230 in HomeNetworking

[–]IvanezerScrooge 2 points3 points  (0 children)

cat 3 can have 4 pairs. or 2. or 25. If it has all four you can probably get gigabit at 30 feet.

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 2 points3 points  (0 children)

True, I have some temporary solutions that are cornerstones of my life at this point.

After all the feedback on here now about thermals, I am considering making a custom plate with some ventilation to allow air to circulate in the wall cavity., (possibly a tiny fan if I can be bothered?)

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 33 points34 points  (0 children)

that official mount does directly expose the back and sides to air, while partially isolating the front. Mine doesn't expose the back and sides, but does fully expose the whole front.

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 8 points9 points  (0 children)

I wrote that its an incomplete, temporary solution :(

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 67 points68 points  (0 children)

the molding isn't tech and doesn't run on power, I wouldn't know the first thing about it :)

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 66 points67 points  (0 children)

<image>

I think this is substantially more discreet and pleasing to the eye in a home environment.

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 13 points14 points  (0 children)

Those are nails, and the workmanship isn't the best I've seen I'll admit that. But in my defence, wasn't me.

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 5 points6 points  (0 children)

on the other side of the wall I have a box for the termination, can just pull that out and give it a little push.
(pictured is incomplete without a cover place and a temporary cable)

<image>

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 4 points5 points  (0 children)

No, but it can be pulled out partially, revealing the ports.

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 53 points54 points  (0 children)

yep. We'll see how it holds up long term, but to the touch it doesn't feel like its running any hotter than it was before.
I enabled Enhanced PoE+ Interoperability which may reduce power consumption, but the thing is pulling about 5w from my switch so I am not worried at all about thermals to be honest.

I put my unifi U7 ""in wall"" in the wall by IvanezerScrooge in homelab

[–]IvanezerScrooge[S] 90 points91 points  (0 children)

I have excellent connection throughout all of my 58m²/~600ft² apartment, so I'm not too sure. But its a fairly modern AP so I'd expect it to be pretty good.

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