Sewdhull

Yeah the gearbox is the same, but the grip covers the whole gearbox so when the motor is installed you can't see it where the pinion meets the bevel. I cobbled some tube etc together to position the motor, shimmed the bevel then I'll sort motor height in due course. Maybe this eve...

Yes it's the smoke that makes it work...let it out and it stops

My research indicates the following. Buckings work because they deform and have more surface to rub on because of it, therefore more time in contact with the BB making the most of the friction, as they get harder they deform less. The actual coefficient of friction reduces as they warm because of physics, but they deform more as they warm until they are deforming too much, requiring a harder rubber. Harder rubbers deform less so they can put more force on the BB, needed for heavier BBs. The choice of bucking Vs the temperature they are used at matters and the gun will keep cooling or heating the rubber as you have observed. Compressing the air heats it so using the gun heats the insides including the bucking. The barrel will cool it until everything equalises. Cold or warm bbs may well have a similar effect. I can't find any info on aeg air temps so the actual temp the bucking operates at is a mystery but being rubber or similar heating or cooling will be localised whatever it is.

Do you, or did you , have a MOSFET? If you did it's likely the source of the smoke.

Soldering iron... Antex hp80 is no good for electronics but great for connectors it's a bit large for small things. If you need something for both there's loads of choice, but for connectors you need a larger heat source, not watts but physically large bit. If the bit is large around 6mm you won't need more than 40W. If it's small 3 or 4mm you might need 60 or 80. The Amazon temp controlled for about 15 quid aren't temp controlled, but they do control the power. I have one and it's ok, but you need to use the largest bit and turn the temp up. I have a 55something clone from patrolbase, it's satisfactory.

Thanks for that, I shall enquire.

I want some aep pinions. Begadi are have them in but it's 18euro post, the parts are something like 3.5 euro I'll wait and see if I can get a shopping list

Aaps need toughening up if you're going to put alot of rounds through in auto. And yes it's about the cost of the gun in parts to sort out the weak bits. In fairness they weren't designed for the rigours of hpa. Even gas breaks some of them after a couple thousand rounds.

I have fixed this sort of leak by holding the valve in and putting silicone oil down the top open rubber seal so it makes it way to the bottom. Add a little gas after. You need to vent the mag properly afterwards to get rid of the oil.

Thanks, I can crop the image in the phone, I was just wondering about short vids. I'll look at the file size. Maybe use an audio file instead.

Is there a file size limit, I've searched but nothing pops up? Is it just the max storage I have in the forum?

Momentum is irrelevant when a BB hits you. I can understand why intuitively ppl think it is relevant however. It is energy that makes the difference if there is any. https://physics.stackexchange.com/questions/141779/what-causes-damage-kinetic-energy-or-momentum#:~:text=Here's a more physical argument,the same momentum may not. Heavier bbs will hang on to the energy for longer in thier flight however, because of the increased mass and same drag as a lighter bb I use the same ammo, so long as the hop will hop the heavier bbs. I'm guided by the cost of them, since the advantages diminish after .3, well in my guns anyway

Wish he'd done one for the mp5, I've been busy this evening...

So long as the hop works with a heavy bb, go for it. Personally I use at least .3 in everything depending on how much they cost

It's worth nothing that these pressures are likely at what's known as psia, with reference to vacuum. The addition of the HFC 32 gas, adds pressure as the amount of propane reduces which would otherwise reduce pressure, butane being a lower pressure gas than both of those. On its own the HFC 32 would be around 245 psia.

If you are in the UK as I am, game temps can range between 5 and 20C for the most part of the year. Propane pressure can nearly double over that range and the reason propane won't cut it for some guns as the temp drops. Mag cooling only makes this worse. The orange ultrair is about 30psi more than propane at 25C and the same as 25C propane at 15C. The red ultrair take this same pressure as 25C propane down to about 10C. You can decide how propane works in your gun and adjust accordingly. Silicone oil is only a few percent and won't make any difference to the pressure, but can in theory contaminate the hop. However I've not experienced this nor seen any evidence of it happening.

I think the changes are pretty much cosmetic.

The issue I have seen is the naming of 'similar' pressure gasses and variations in gas formula. I bought asg ultrair gas because it came at different pressures and formulations which I could in the future replace with a known product. It's cheap, I can choose a step up in pressure and it's cycled my gas pistols fine. You can choose a no silicone version too

Yes that's the way nowadays

The height of the bevel gear is what I want to sort first, too low and the motor pinion will be too far up the gear, too high and the pinion will be too far down. In a v3 you can see this relationship in this v2 ya can't.

https://www.eevblog.com/forum/thermal-imaging/flir-mk1-i3-not-charging/msg1161890/#msg1161890

It's the centralising bit, I'll probs need to use a jig, just some tube to align the motor.

Have you tried powering from usb? There are other photos from above

I need tips for setting motor height in the v2 box. The mp5 grip extends way up so I can't see the bevel gear to even start the process. Any tips, do I need to make a jig? Guess?

You still need the IR sensor, phones remove most of the IR to keep the visible colours correct. There are sensors that plug into a phone and an app to mix that image with the phone camera. Pixel count for thermal is very low. 10k for a 200gbp unit