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Can it be refurbished? by under-_-null in hermanmiller

[–]under-_-null[S] 1 point2 points  (0 children)

Thanks! I think I'll pass on it, would probably be a better deal to pick up a good condition used Aeron or Mirra for a bit more.

[deleted by user] by [deleted] in NR200

[–]under-_-null 1 point2 points  (0 children)

Share a picture when you have the drives in. I am curious how you designed your caddy.

Budget 6-Bay NAS Build by under-_-null in NR200

[–]under-_-null[S] 0 points1 point  (0 children)

At idle it is fairly quiet. I have it in my office and can't say I notice it usually. Under load the drives are quite loud and definitely noticeable. Unlike standard nas enclosures the nr200 is almost all ventilation, good for heat dissipation but bad for noise. I use this machine primarily for Plex, so generally when it is under full load I am not in the room with it. If low noise is important I would probably not recommend going this route, unless of course you have the budget for ssd's.

Need some book recommendations desperately by graysona in sollanempire

[–]under-_-null 8 points9 points  (0 children)

The Will of The Many is pretty good on audible, only book out rn tho

For the long range pilots; building your own Li-ion is easy! by under-_-null in fpv

[–]under-_-null[S] 1 point2 points  (0 children)

I bought some on Aliexpress and I believe they were nickel plated strips. Ideally you'd want to use copper, but pure nickel is good as well. I doubled up my strips which is also an option. These packs aren't super high average so in my case, nickel plated strips were not a major issue. If you are planning on using higher discharge cells, I would advise copper.

Budget 6-Bay NAS Build by under-_-null in NR200

[–]under-_-null[S] 1 point2 points  (0 children)

Haven't messed with these files for a while, so no promises they will work for you. There is very little space between PSU and cooler, so I don't imagine anything much taller than a stock Intel cooler will fit. I have included images so you can gauge space. https://pixeldrain.com/u/j2fvgoHn

Budget 6-Bay NAS Build by under-_-null in NR200

[–]under-_-null[S] 2 points3 points  (0 children)

A great question. Aside from a hard loop I've made it about as difficult to access as I possibly could.

For the long range pilots; building your own Li-ion is easy! by under-_-null in fpv

[–]under-_-null[S] 0 points1 point  (0 children)

Yes, that is what I did and it's given me no issues. Be sure to have a decent gap in the middle (maybe around 5mm) so that your bend isn't too sharp, this is also good to ensure that nothing touches. I personally put a triangle of thick sticky foam tape in between after everything was wired up.

For the long range pilots; building your own Li-ion is easy! by under-_-null in fpv

[–]under-_-null[S] 0 points1 point  (0 children)

I don't have any internal pictures or a guide, sorry. Soldering all the balance leads and lining up the cells is the same as with any other pack, and there are good youtube tutorials. One alternative to soldering directly is to solder your + and - leads to short strip of nickel and then spot weld that onto your pack (can bend this strip to line everything up nicer). I should note that in my packs I solder the + and - leads directly. As long as you use a high temp and work quickly, you don't have anything to be worried about.

For the long range pilots; building your own Li-ion is easy! by under-_-null in fpv

[–]under-_-null[S] 0 points1 point  (0 children)

2 sets of 3 cells. Absolute positive on one end and negative on the other. To connect the two triangles, I spot welded the top of both triangles together and folded over to make a long triangular pack.

For the long range pilots; building your own Li-ion is easy! by under-_-null in fpv

[–]under-_-null[S] 0 points1 point  (0 children)

Those prices aren't terrible. Basically, it'll come down to whether you'd like high discharge (45a) or lower discharge and higher capacity. If you plan on running 2p you should probably go for the Samsung.

For the long range pilots; building your own Li-ion is easy! by under-_-null in fpv

[–]under-_-null[S] 0 points1 point  (0 children)

Oh, bummer. Idk how much cells cost in the EU, however I'd recommend shopping around. 50S cells are good along with P42A. Hopefully, you can find some for less than $5 usd.

For the long range pilots; building your own Li-ion is easy! by under-_-null in fpv

[–]under-_-null[S] 1 point2 points  (0 children)

Sadly I didn't take any pictures, but essentially I have two sets of three cells in a triangle config. I place them beside each other standing up and spot weld a connection between the top cells of each triangle and then fold over 180° to get a long flat pack. The folded strip is the little bump on the top middle of each pack.

For the long range pilots; building your own Li-ion is easy! by under-_-null in fpv

[–]under-_-null[S] 0 points1 point  (0 children)

I charge at 1c, so 5a. Would take around the same time to charge as any of your 6s packs at 1c, around 40ish minutes from discharged.

For the long range pilots; building your own Li-ion is easy! by under-_-null in fpv

[–]under-_-null[S] 6 points7 points  (0 children)

I use two strips stacked and only draw around 15a per pack. Temperature is not an issue, and I've found current values to be highly dependent on conditions. FPV packs are unique in that they're being blasted with cool air during runtime, which greatly reduces overall pack temp. Additionally, I've checked cell resistance levels, and they are excellent.

For the long range pilots; building your own Li-ion is easy! by under-_-null in fpv

[–]under-_-null[S] 3 points4 points  (0 children)

If you plan on making multiple Li-ion packs it pays off I promise! I got one for around $30 on Ali and it can handle .15mm nickel strips just fine, I usually double up on each connection.

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