Pseudotectonic

(Not based on any particular site) Level design: loops, lanes, options, variety, etc which allow strategic options, each area can have different environmental pro/cons for certain builds / play styles, options is king Cover design: crouch, prone, odd openings, jump over, parkour, etc which allow multiple tactical options for every situation, again options is king Scenic design: overall art direction and narrative, identity of each room and building and object, good lighting design, good acoustic design, good prop design, immersion, instagramibility, interactive props and objectives etc that are fun to use, I want to be able to larp at least in my head Comfort and convenience: overall cleanliness, comfy safe zone, maintenance, ventilation, ease of navigation etc Admin: how the game is orchestrated, vibe, atmosphere etc

An upgraded cheap gun will have better fps and higher rate of fire So the question is can you do upgrades, if only just swapping the motor? If you want an international forum you can head to r/airsoft they can speak American over there

@Barry Sayer you might have made yourself a literal grenade because they don't withstand LiPo fire for sure

I have a question about charging LiPo, what are you supposed to be "keeping an eye on" when you are charging the LiPo, indoors? Do you need to literally watch it with a hawk's eye and unplug and chuck it out the window the nanosecond it swells? Or are you just feeling the temperature every 30 seconds or so? And how are you supposed to do all these inside a LiPo bag?

try turning the r hop patch 180 degree, if it hops to the right, it is the patch

What exactly was the model of that battery? And charger? Do you know how exactly did it fail? Just wondering would it make any difference if him being inside the house if the battery suddenly burst without warning

Can you post a picture for proper evaluation

@Adolf Hamster Re air cushion the most convincing article I've seen is here but it only shows that air cushions exist in theory, it doesn't discuss barrel lengths and volumes. But I find it interesting it says "BB's in tight bores follow a more stable path than wide bores" but @Sewdhull @Impulse suggested otherwise. My current believe is wider bore is more accurate, not because of better or worse air cushioning but because it is less susceptible to defects or imperfections or dust ingress or vibrations. Of course again this is pure theory. @ak2m4 @Skara Shorter more accurate!? Last 3 or 4 inches greatly affect accuracy? That is very counter-intuitive. Is shorter more accurate a linear relationship or how is the curve? Was the air volume appropriate for each barrel, same joule, same hop, same BB? What might be the theory behind this? Could it be that the air cushion in the last few inches (where it matters most) has a higher pressure in a shorter barrel than the longer barrel (because to achieve the same joule the shorter barrel needs a stronger spring / air pressure to accelerate the BB within a shorter timeframe) therefore has a stronger stabilising (i.e. centering) effect? And what do you mean 260 to 300 being the sweet spot? You mean it doesn't improve much if it is shorter than this?

Does barrel length affect accuracy? Yes? No? How? And how much? -- Let's do a simple thought experiment. Using maths, and a very typical situation. I have a variable barrel that goes from 50 mm to 550 mm. And I have an imaginary target at 30 metres. I want to find out the different ways the difference in barrel length can affect the grouping diameter. For the purpose of this calculation, we can eliminate the factors of air volume and hop up. Because for every build these would have been tuned accordingly to work with each barrel length. They will all have been tuned to output the same joule with the same BB and with the same hop up performance. Therefore this calculation deals only with the geometrical effects of a longer or shorter barrel. -- Diagram A: Spread introduced by barrel BB travel Assume the barrel is a stock 6.05 mm barrel. The BB has a typical 5.95 mm diameter. Therefore the variation is 0.1 mm. Assuming the BB travels in more or less a straight line, this 0.1 mm variation at the barrel exit will give us the worst case BB trajectory. The final spread diameter at 30 metres is therefore a simple triangle calculation. -- Diagram B: Spread introduced by inner barrel wobble inside outer barrel Due to the construction of airsoft, the inner barrel is normally not fixed inside the outer barrel, but simply rests inside with a little clearance space around. During the firing cycle the gun will definitely be subject to vibrations of all sorts, making the inner barrel essentially wobble inside the space it occupies. Assuming this clearance is 0.4 mm (measured from an AEG) we can similarly calculate the spread it creates at 30 metres. -- Diagram C: Spread introduced by difference in ergonomics A longer barrel will allow you to hold it steady at two further apart locations, because of the longer handguard. This can be fully exploited to create a more stable barrel. Assuming your most steady hand will involuntarily sway within a 2 mm range, we can again extrapolate its effects on the grouping using the same calculation. -- Factor D: Wind There is no diagram for this because wind is not affected by barrel length. We assume a moderate wind affecting our BB at 30 metres to introduce a spread of 50 mm. -- Results: In the order of significance, the barrel length can influence the accuracy through: - Ergonomics - Inner barrel wobble - BB travel inside barrel I will discuss each below. The biggest advantage of a longer barrel has surprisingly nothing to do with the actual ballistics of the BB, but the effect of simply having a longer stick to hold onto gives you a better control of the aim. For shorter barrels below 200 mm, the ergonomic disadvantages will affect your accuracy a lot for long range engagements, although the shorter builds are better for CQB where accuracy is less important than manoeuvrability. The biggest thing you can do to exploit the advantages of a longer barrel in terms of accuracy will be to eliminate hand sway as much as possible while making use of the longer form factor. That means using bipods or resting your gun at something solid as much as possible, and so on. Again it remains true that it is 99% the user and 1% the gun. Even with worst case geometrics, the inner barrel wobble and BB travel inside barrel does not really introduce much spread once you go above 200 mm barrel length, where it generally becomes less of a problem than actual wind blowing your BB. Above say 300 mm, the effect will become so small it becomes virtually no difference in most practical situations. -- Recommendations: - Below 200 mm is strictly for CQB. The BB, the barrel, and the gun itself will all suffer from stability issues for making accurate shots. - While barrel length affects accuracy in pure mathematics, the ballistic effects will have become virtually irrelevant above 300 mm. - Longer barrels (longer guns / sniper rifles) can potentially have better groupings, with the right skills, and probably with the right bipod. - The best method to improve accuracy is improving largely your skills, not your gun. Conclusions: Nothing is new here, but I guess you can't really snipe with an MP5K. But you can potentially snipe with an MP5.

Yea Google says Warhead is a brand of "KO Technologies" which has their own factories and they do EV and drone motors

For any other use, I would agree, but I think for airsoft spring guide bearings, even the cheapest ones will be more than enough, it is not spinning at any high speed nor needs to be precise nor under any specific high load, as long as it rotates better than a washer, it will have performed its duty As long as it is greased, of course

ROF DSG and PME often go together Btw is there a list of the forum-mouseover-hint or whatever it is called? This thread might be a good chance to update it

What is BB?

@ak2m4 Oh? Are they the same? Because I thought the ones on Ali are different/newer ones, they now have a "Stariver" branding and have different RPM options and everything? Is yours from the Solink website? Because I can't find these on Ali

Brushless Gossip Issue 1 - September 2024 ---- Strolling across Aliexpress I've noticed a few new brushless motors popped up recently, and I am happy to say there seems to be a new generation of brushless arms race. The brands seem to have picked up the chatters and are now starting to advertise their improved CPUs and algorithms and response times measuring in milliseconds. The prices seem to be drifting down a little as well which is good. For discussion I will note them down here along with some marketing points they are making. This is purely a review of their marketing and I have not bought any of these. In no particular order: ---- Chaoli CLBL 480 ~£90 + VAT Two models, 26.5k-39k and 39k-48k adjustable RPM with potentiometer on the case "3 ms response" "32-bit CPU" "Emergency stop after power failure, no buffer, stable output" Seems to have a capacitor on the control board Comment: Probably the oldest of this bunch because I have seen this model before but not the others. Potentially the fastest response of the bunch by 4 ms. Still expensive, if they remove the adjustable RPM and make it cheaper this can be a winner. Good for chasing trigger response. ---- T238 QRBLS "Quick Response" ~£68 + VAT Choice of 25k/28k/37k models, no on-board adjustable RPM "Emergency stop after power failure, no buffer, stable output" Comment: Some impressive videos on Youtube, does seem to have faster response. Good budget option. Unknown CPU and response ms, could possibly be room for improvement. Could be good enough for all intent and purposes. ---- (T238 / Solink?) KPG Gamma Brushless ~£58 + shipping £2.33 + VAT Choice of 36k/43k models "7 ms start time" "ARM Cortex M4 @ 100 Mhz" "self-developed patented algorithm" Comment: Impressive marketing. 7 ms is not the fastest tho. RPM seems a bit too much, could perhaps make it slower and improve torque or efficiency. Good budget option if you want the higher RPM. ---- (T238 / Solink) "Demon kinG" ~£110 + shipping £24 + VAT (barely below threshold for Customs Duty!) Choice of 34k/39k/48k/60k models "7 ms start time" "ARM Cortex M4 @ 100 Mhz" "self-developed patented algorithm" Comment: Expensive but they market it as flagship so I would expect the highest quality components. Same factory with the Gamma and the T238? They seem to suggest the 60k model is absolute bonkers for forbidden builds but this is probably irrelevant to most people. Good for unlimited budget extreme builds. ---- Final thoughts: I should throw in the Paragon brushless as honourable mention ("3 ms start") because it was probably the first motor that I am aware to market their boot up time, and I think we can call these millisecond-conscious brushless motors a new generation. And this gen is entering an exciting arms race. The market has definitely moved on from the days of Warheads, and in my opinion unless these last-gens come down in prices, there is little reason to pick them over the newer cheaper models. With Specna starting to bring in brushless into their stock builds (albeit a previous-gen brushless) we are perhaps seeing the start of brushless becoming mainstream in the near future.

pretty sure it was PME

Motor heats up because of high current High current because of high load High load because of difficulty to spin Difficulty to spin could be because motor is too low torque and/or too high mechanical resistance Too high mechanical resistance could be anything in the gearbox If it is new, I would try adjusting the motor height and see if it spins easier

cut off lever spring?

I am just saying, you definitely need "evidence", because that is what VCRA says The wording "sufficient evidence [...]" is that of the concept of evidential burden of proof which is not exclusive to VCRA and there are tests for "evidential sufficiency" in other areas of law that we can triangulate with If you don't try to interpret the law yourself, you are at mercy of judges making wrong interpretations

Ackchually VCRA specifies "sufficient evidence to raise an issue" to be the standard for testing So you would need some sort of evidence

Why would a retailer expect harsher punishment? VCRA does not discriminate

The way he waves it around tells me it's a bloody plastic spring pistol

You can import an RIF if you have UKARA. But ring your airline if they allow such items. You will probably need to put them into cargo as a checked luggage (not carry on). The size restrictions might say you need to pay a fee, depends on the size and shape of your box or bag. If they get inspected you can give them your UKARA number as proof of defence.

The law is very clear, selling an RIF is illegal unless you have sufficient evidence of defence. It does not matter if you are a retailer or a private seller on a forum, the law is exactly the same. UKARA is just one example of evidence of defence. You can choose to use something else other than UKARA to be your evidence of defence. But UKARA is most commonly used. (It has absolutely nothing to do with any duty of care / negligence, which is a civil matter. Meanwhile the VCRA offence is a criminal matter.)