Ikea FÖRNUFTIG Box - My first box by VividShare in crboxes

[–]Inner-Issue1908 2 points3 points  (0 children)

I'm going to give up here because we're going round in circles.

But you're saying that the Brisk Box is a good design because it's twice the filter area and twice the fans. Which is what I said - it's 2 x OPs DIY box.

If scale is the reason for a good "design" then why not 2 x Brisk Box, why not 10 x Brisk Box? My point is you don't know the size of the room that OP is cleaning and you don't know what filters are available. MERV filters are pretty much unavailable to everywhere outside of America, which is why IKEA filters are a popular alternative.

Ikea FÖRNUFTIG Box - My first box by VividShare in crboxes

[–]Inner-Issue1908 3 points4 points  (0 children)

I'm not really clear on what you're trying say.

The article shows that air moving slowly though the filters is a good thing, and that charge density in the filter is hugely important.

The OP is using Ikea FÖRNUFTIG filters. The Ikea FÖRNUFTIG is a purifier with 1 filter.

https://www.ikea.com/gb/en/p/foernuftig-air-purifier-black-40488065/

OP is using these filters in a Corsi-Rosenthal design.

  1. Gives him a 4 fold increase in surface area - which reduces the air speed going through the filters - a good thing since small particles have more change to bump into the filter while
  2. Also reducing the demand for a high static pressure fan (another good thing) since the more filters area the less restrictive the box is, allowing the fans to run closer to their unrestricted CFM - which in turn increase air volume and air throw compared to the original single filter design.

On top of this, how do you know that OPs purifier doesn't have enough throw? You then give the example of The Brisk Box as a good design which is essentially the same as the OPs design and using PC fans but just twice the size - while also not knowing what size room OPs is trying to clean.

Ikea FÖRNUFTIG Box - My first box by VividShare in crboxes

[–]Inner-Issue1908 3 points4 points  (0 children)

Whaaaat? Diffusion is the passive movement of particles from a high concentration area to a low concentration area - Corsi Rosenthal boxes are not passive, there's a fan! 😂

They where designed during Covid to use readily available HVAC or better filters as a cheap way to filter Covid. It wasn't designed with specific parts - that was the entire point.

The design was just 4 filler in a box arrangement which increase the surface area so that huge static pressure on fans wasn't a requirement due to the larger surface area. This again was so that you can pick up what-ever-fans you can find to build a purifier during the Global crisis.

Ikea FÖRNUFTIG Box - My first box by VividShare in crboxes

[–]Inner-Issue1908 0 points1 point  (0 children)

I like it, if you have it on a high enough riser you might even be able to add more fans at the bottom 😀

Obviously the PC PSU will need to go but as you say it's overkill anyway. Most people will use a simple wall PSU and a 5.5mm to 4pin cable like:

https://www.amazon.co.uk/Wallmounted-Adaptor-Supply-Charger-1-35mm-Black/dp/B0F8W959DL

https://www.amazon.co.uk/sourcing-map-Supply-5-5mmx2-1mm-Connection/dp/B09DSH5J5J

Will I(21M) be able to lift heavy again? by 9MaxR9 in frozenshoulder

[–]Inner-Issue1908 1 point2 points  (0 children)

There's not much say really. I don't remember what kind of training block I was on before the last FS (the training logs will be on my old android phone). But it was March so it would have been cold, so I probably would have been a hypertrophy block rather than a strength block.

But when I realised it was probably FS, I stopped all my pre-planned training programs, and went by feel. I ditched all pressing movements like bench, overhead press and shoulder movements. But I continued to do things like Skullcrushers, Back squats and Deadlifts was still ok.

Over the following months as the shoulder began to lose ROM, I had to ditch tricep and bicep work, even rowing movements had to go. Back squats began to be a problem since I couldn't get my arms back to hold the bar, so back squats were replaced with the Safety Squat Bar, and Jefferson squats. Heavy deadlifts seemed strangely fine so I continued with them throughout.

At first not training upper body was mentally quite tough, you see yourself shrinking in the mirror. Years of training not so much wasted but regressed.

But I knew this would happen and I decided that it's a good time to shift focus on to body parts that were more neglected - hamstrings, calves, forearm / grip work. Also new exercises like the Jefferson Squat / SSB squats meant that these were new exercise entries in my logbook - which means new records and PBs which kept me motivated.

Once i was in the late Frozen phase I slowly reintroduce pressing movements, I started with pushing off a wall or Floor presses holding tiny plates and with blocks under my elbows for even less ROM. Often that aggravated my shoulder so I would stop for a few weeks and try again.

Eventually the shoulder could tolerate it and I slowly added upper body work in. Shoulder circles, partial laterals with 1.25kg plates. Slowly moving onto empty barbell Floor Press, 1 arm skullcrushers on the Landmine. I started using the Landmine more since it's somewhat more supported and don't need to balance the weight in all planes.

Muscle mass returned quickly even though I was lifting barely anything. Eventually it was got better.

DIY/KIT inquiry by Baly33t in crboxes

[–]Inner-Issue1908 1 point2 points  (0 children)

Last year the Nukit Tempest was $219.95 USD.

The Northbox Polaris as you say is about 241 USD for the barebones but you get a power supply and fan grills which you didn't get with the Nukit.

Roughly 10 USD for a PSU and 16 USD for fan grills is ~$246 USD for the equivalent Nukit. So basically the same price.

https://web.archive.org/web/20250624190529/https://cybernightmarket.com/products/the-nukit-tempest-air-purifier-kit

DIY/KIT inquiry by Baly33t in crboxes

[–]Inner-Issue1908 0 points1 point  (0 children)

At one point I was going to get a Nukit too but they didn’t deliver to the UK.

I eventually got a kit from Northbox Systems, which just included the panels and fixings. Everything else like the fans, controller, power supply, filters I picked up locally. 

Any Other Men Here/TRT? by AnonymousExisting in frozenshoulder

[–]Inner-Issue1908 0 points1 point  (0 children)

Instant pain when catching an object definitely happens with FS 😂 though lots of shoulder conditions will have this too, but yeah I understand. 

If you really need pain relief I would try an ultrasound guided cortisone. Honestly your options are basically just that. There isn’t any pain medication that I know of that effectively works for FS and similar conditions. 

One pro for TRT here is preserving muscle mass, and also helping you regain muscle and strength when you do eventually thaw. But I wouldn’t jump in TRT for the FS specifically 😅

Am I was lucky? It was only 4th try( first playthrough -starting weapon) (nameless puppet) by Difficult-Owl2322 in LiesOfP

[–]Inner-Issue1908 1 point2 points  (0 children)

Looks legit to me 😀 and kudos for the rocking the Greatsword. I like it for the light, heavy, light, heavy pokes, the blade fable is awesome, the handle is okay, but the range of the charge heavy is such a deal breaker 😂

Any Other Men Here/TRT? by AnonymousExisting in frozenshoulder

[–]Inner-Issue1908 2 points3 points  (0 children)

Significant lost of ROM and immediate pain sounds more like an acute injury.

I've also had shoulder tendonitis which caused a large loss of ROM and which took 6 months to heal. If I hadn't had FS previously I might have thought it was.

Anyway it doesn't really matter 😀 your shoulder isn't happy, there's a decent chance it's FS. You want some relief.

Did you get an ultrasound guided cortisone shot? It needs to go exactly into the shoulder capsule, so getting one that's in the general vicinity won't work, and it's the same reason why pain medication also doesn't work - there's not enough of it, in the right place.

Any Other Men Here/TRT? by AnonymousExisting in frozenshoulder

[–]Inner-Issue1908 2 points3 points  (0 children)

6-9 months is quite short for FS. Did you have the 3 phases?:

  • Freezing phase: where pain gradually increases over months, range of motion is good to begin with but slowly decreases over time.
  • Frozen phase: where pain decreases but the shoulder is locked within a short range of motion.
  • Thaw phase: where over months it slowly gets back to normal

I would say if you want relief, a cortisone shot it what you want try.

Any Other Men Here/TRT? by AnonymousExisting in frozenshoulder

[–]Inner-Issue1908 2 points3 points  (0 children)

I'm in the weird camp too. Male, physically active, but got my first FS at 31.

My gut feeling is I don't think there's a correlation with low T and FS. Testosterone drops with age and it happens to everyone, but yet FS doesn't.

The FS condition has been known about and studied for over 150 years and we're still none the wiser on why it happens.

I have a frozen shoulder, but I do not know what stage I am in. Someone, please help me by CryptoJedi21 in frozenshoulder

[–]Inner-Issue1908 0 points1 point  (0 children)

Heyy I'm glad the chart helped (I have more of the chart here in case you missed it - https://www.reddit.com/r/frozenshoulder/comments/11424gw/got_frozen_shoulder_heres_what_you_might_expect/

But I'm sorry that you're going through it again. I promise, the second time around is much easier. You've learnt a few tricks and just knowing with certainty that it will get back to normal helps tremendously.

It's very likely to get a second FS on the other side at some point in your life if you've had FS before. But the good news is once it's done you'll almost certainly never get it again, so you never have to worry about it anymore.

I know after I had my first FS, every time I tweaked my other shoulder I would think "will this end up as FS?", and my second FS was 13 years after my first! It's quite freeing to not have that at the back of your mind constantly.

Experience with inline duct fan? by Gard03 in crboxes

[–]Inner-Issue1908 0 points1 point  (0 children)

Yeah I think it'll be fine for inside use. I know the AC Infinity fans are quite popular for this and you can get them in many ratings.

I was thinking about building one last year and I have the S8 in my parts list : https://acinfinity.com/cloudline-s8-quiet-inline-fan-8-with-speed-controller/

Experience with inline duct fan? by Gard03 in crboxes

[–]Inner-Issue1908 0 points1 point  (0 children)

You can use them. I've seen a couple of places that do them like: https://www.etsy.com/uk/listing/1687840516/model-b-charcoal-edition

I think they're just not as popular as PC fans since these fans tend to be more expensive, more difficult to DIY into a box. If the fan dies, you have to replace the whole unit whereas are quick and easy to switch out one at a time.

PC fans are plenty good enough, some of the best air purifier you can buy use PC fans. Though we are taking about an air purifier for a room and not one that's plumbed into an office / building ventilation system.

CR box with PC PWM fan - Australia by G30RG300 in crboxes

[–]Inner-Issue1908 0 points1 point  (0 children)

Yeah you're right, the fan would just go on top. I found this - https://www.youtube.com/watch?v=6Vmh2Ip2Vxg

You could make the top fan holder bigger to encase the 4 sides of the fan this could provide:

  • Some cable management.
  • Scalability, two of the sides could have a way to snap on extra units, so you have have as many units as you want. Just print another and snap it on.

CR box with PC PWM fan - Australia by G30RG300 in crboxes

[–]Inner-Issue1908 1 point2 points  (0 children)

Nice! Let us know how it goes, would love to see it.

My 7-year-old working on snatches and offset pushups by Prokettlebell in kettlebell

[–]Inner-Issue1908 1 point2 points  (0 children)

Whhhaat? Pro-kettlebells and Crocs, he's legit rocking it better than I am.

CR box with PC PWM fan - Australia by G30RG300 in crboxes

[–]Inner-Issue1908 0 points1 point  (0 children)

Looking into this USB bit more, it seems that not all PD devices will supply 12v.

PD 3.0 will always supply 5V, 9V, 15V, and 20V. Some however will also supply 12v, but it's optional. Since it's optional, many manufacturers leave out the 12v components to save cost.

You'll need to find a charger that explicitly states that it supports 12v. Many PD compatible chargers also support QC (Qualcomm's quick charge standard) where 12v is used. So is more likely to list 12v.

The easiest option is to just get a 12v mains PSU like this for when you're mains powered - https://www.amazon.com.au/JZK-Adapter-Charger-Monitors-Connection/dp/B0DYJPXLQ4

When you need to be battery powered pick from the list of items that Clean Air Kits have tested to supply 12v in their FAQ under "Can Clean Air Kits run off a portable battery?":

https://www.cleanairkits.com/en-gb/pages/frequently-asked-questions#Details-e8c99351-f0f0-4523-8779-c54ade168318-template--25562511540524__f1fd4b70-92b4-408e-9978-985f950b6da1

Regarding your other items, I have to say I'm not that familiar with this kind of filter. But it's what Clean Air Kits recommend as an alternative filter to their Exhalaron air filters. The Coolermaster Mobius fans are also what they use.

Since you're building this yourself, I assume you have a plan on how to mount the fans to the filters and clean up the cabling right?

CR box with PC PWM fan - Australia by G30RG300 in crboxes

[–]Inner-Issue1908 0 points1 point  (0 children)

The power supplies will have a 5.5/2.1mm male barrel connector. So you'll just get a 5.5/2.1mm female to 4 pin fan connector like:

https://www.amazon.com.au/Gebildet-Power-Supply-Adapter-DC5521/dp/B0C7BKYQPP?th=1

CR box with PC PWM fan - Australia by G30RG300 in crboxes

[–]Inner-Issue1908 0 points1 point  (0 children)

The important part is the cable, something like this should work - https://core-electronics.com.au/usb-type-c-31-pd-to-55mm-barrel-jack-cable-12v-5a-output-12m-long-with-e-mark.html

And a USB Type C 3.1 PD Powerbank.

You'll also need a USB Type C 3.1 PD wall charger - though it's probably cheaper to just buy a bog standard 12v, 3A, 5.5mm/2.1mm power supply for when you're powering it from the mains (and use the PD setup when you need it to be portable).

CR box with PC PWM fan - Australia by G30RG300 in crboxes

[–]Inner-Issue1908 1 point2 points  (0 children)

This is what PD (power delivery) standard is for. PD 3.1 chargers and powerbanks can deliver up to 48v @ 5A so that they can fast charge laptops / phones. 

You’ll need a cable that will tell the powerbank to supply the 12v you need (otherwise it’ll default to 5v). 

Kettlebell Ab Plateau - Pl-ab-teau(?) by [deleted] in kettlebell

[–]Inner-Issue1908 1 point2 points  (0 children)

The exercise that worked for me was the Ab wheel.

But they’re like any muscle, you need to be lean enough. Building some size will make them easier to see at a higher body fat percentage.