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Will (Bad Boy) Smith

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About Will (Bad Boy) Smith

  • Rank
    AF-UK Newbie

Profile Information

  • Guns
    Specna SA-E11 M4, G&G Firehawk DSG, 2 x AW Custom Hex 2011 HiCapa, 2 x AW Custom Hex G18
  • Loadouts
    M4, Dual Wield, Katana
  • Sites
    Strikeforce CQB Gloucester

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  1. Nice. I think they work better with the bigger spring. That's probably my problem, especially with the 11.1v lipo. Your FPS is probably going to up around 400fps now though - where do you plan to play with it?
  2. whooah BOTH!? surely that would upset the balance of that gear, right? In terms of Active Braking - does that work for Auto as well? How much of my problems would a Gate Titan just fix? As an aside, for the previous failure, if I'd had silicone oil on the hopup - would that have caused me to adjust it high to get flight, and therefore too high, risking a failure by obstruction?
  3. @MrInfernal I believe the x-asr is harder to program but looks possible for this. I had one for a few days to see if I could make my Firehawk have a semi function. TBH I kinda resent the markup on those mosfet devices and software, but it's a specialist system I guess. All of Airsoft gear is massively marked up AFAICT. @Davegolf which tooth - the last nearest the piston head? And does the active braking need to be programmed by trial an error, or does the micro-controller self-adjust?
  4. So the 11.1 is pushing it. Can active braking or a pulled tooth make me safer or do I still have to go lighter on the piston as you suggest above? Tighter springs are faster I guess?
  5. Thanks @Davegolf, so that's a good summary of my options. So @MrInfernal is running stock 11.v with a longer barrel than me. Seemingly defect free. As I understand it, I need a stronger spring with 11.1v which makes sense now. So it sounds like my most economic option now would be to go back to 18:1 and shim it right again. I should be in the same territory as @MrInfernal. Of course this all comes back to SoftairGames customer service screwing me over. They put the wrong (weaker) spring in to begin with, despite me asking specifically for the 350fps spring *and* a recommendation for 11.1v lipo. Alternatively, I guess could try 7.4v with 16:1? but that seems pointless, and I might just as well get the 18:1 standard set than risk changing both. It sounds like 270fps I currently have(had) is indicative of the weaker spring, but I need to get it to around 340 not 370 as it was shooting after my first build with what I'm now reliably guessing is M110. I also have M105 and M100 from various manufacturers, but as I say, they're longer than the Specna springs - I don't know if that's relevant, or maybe better? OK. So I'll get a standard gear set and work down carefully, testing on Semi from M110. You think I should be OK on 11.1v even without a brake? BUT, If I wanted to stick with 16:1 and 11.1v which tooth would I need to lose - and how reliable would that make the avoidance of pre-engagement? I'm aware that I'd need to go slightly higher on the spring, perhaps M110 because of the shorter stroke, but that might be nearer to perfection? Should I avoid the 16:1 unless I have micro-controller braking? I guess I'm talking about going on and up (spend more) or throttle back. Should I get a brake anyway? Is that option 2, "Build it up nice right" ?
  6. @Davegolf thanks for the braindump. I'll take all your pointers. I'm curious as to the cause of pre-engagement if that's what we think. You don't think the 11.1 lipo is too much then? I'm tempted to move down to a 7.4, but of course, this particular gun is supposed to manage, and @MrInfernal sounds like he's running his on 11.1v which is frustrating. Exact same gearbox, hop up, bucking etc. If it is the speed/rof then surely it's not *that* fast. The chrono looks like it's clocking around 17fps in fact (I may have misread previously). However, and I'm speculating here since I'm only new to the engineering aspects here, that barrel length and hop up must make a difference on how fast the piston can return. @MrInfernal says he has a SA-E06 which if anything appears to have at least the same length barrel, perhaps longer, @MrInfernal would have to report back. The SA-E06 is longer by 5.5cm but in my SA-E11 the inner barrel goes all the way to the end of the 10cm mock silencer, so it's hard to tell which is longer for sure. @Davegolf my 6.03mm inner barrel measures @ 300mm since you asked. There was a bb sitting on the hop when I looked through the barrel, but that's probably just waiting to fire when it trashed itself. The bb didn't appear to be damaged at all and wasn't blocked. The barrel itself is flawlessly shiny and clean as a whistle. I was trying to get my fps spot on 340fps +/- as advertised (but I didn't buy from Patrolbase unfortunately - as they were out of stock and I was impatient). I have a selection of springs now, but the two Specna springs I have around about 4cm shorter than the other standard springs I have. The gearbox has failed twice, once with a higher spring (M110 I believe) on a factory build, and then again recently with the weaker spring, but with 16:1 gears as well. Have I made the pre-engagement with the 11.1v even more likely with the 16:1 gears - and how's it best to fix it? Would shorter stroking by one tooth make that much difference? It might also allow me to use the M110 and get it nearer to 340fps instead of the 370 do you think? I get the logic of making the piston weaker so it's fails faster, but I don't really want any of it to fail. I know there are much faster AEGs than mine which originally was stock. I'm pretty disappointed with this so-called uprated gearbox's inability to survive what seems pretty standard. To me it seems that with today's RoF AEGs are surely inferior to far simpler systems with less moving parts like HPA. If I was designing something electric from scratch today I'd probably look at electromagnetic, but HPA is surely still simpler. @Davegolf, you mentioned a 'delay chip' - are you talking about some programmable mosfet? I wouldn't know what delay to use before it broke again, but it sounds like due to a combination of the 11.1v (even on stock) plus 16:1 gears, 30cm barrel my RoF would need to be reduced to avoid pre-enagement. Is that what we're saying? I'm nervous about throwing more good money after bad. Another gear set, a new piston and a Gate Titan I'd be into £150 to £200 in parts alone. For £140 I could cut my losses and just get a brand new Krytak Nautilus gearbox. Or from what I can tell, £300 I could drop in a mid-range HPA engine. Plus tank, regs, connectors & hose of course, but there are bundles and even complete HPA M4s for £400 to £500. Or could I keep the setup I have (16:1 gears, 11.1v lipo) and just lose a tooth on the piston, maybe upgrade the bucking and hop then choose the right spring to get me back to 340fps. Here's the piston removed. As Specna already have a gap between teeth 1 and 3 it normally engages really nicely, when I rotate the gears by hand, which of course assumes the piston is fully returned. I suspect for short stroking you're talking about removing a tooth near the other end? And yes, there are TWO O-Rings. @Davegolf It's supposed to take 11.1 stock - which originally it was. It broke within a month originally after I tried installing the stronger Specna spring it was supposed to have originally shipped with that @MrInfernal has. The mosfet that comes standard on the Edge is for power only, it has no programmable microcontroller, so no braking, no. So to be clear, you're running the same gearbox (and gun basically) with 11.v lipo and M110 spring with auto burst mode? Where are you getting your new springs from? Have you noticed they are longer than the Specna springs? How long have you run it? has it ever failed? @MrInfernal Do you know your RoF - have you any idea what inner barrel length the SA-E06 has?
  7. @MrInfernal I don't know which two springs they ship in the box to the vendor before they ready for customer shipping, but mine came with the spring that's installed now, which yields a pretty weak 270fps. I can't tell you for sure what Mnnn that is. The *other* spring they subsequently supplied as you can see from the chrono pic my first post yields around 370fps so I'm guessing that's the M110 that you have in yours. It broke on both. The first time on a factory built gearbox with the stronger spring you have, and the second time around with the weaker spring after I rebuilt it with the 16:1 gears. It failed much more quickly. Unfortunately, 340fps +/-10% is the limit for most UK CQB sites AFAICT and certainly where I play. So 370 is a non-starter on 0.20s. Interestingly, I've had mine fire more than once on semi. In fact after the rebuild I was getting two shots for every single trigger pull on semi. But a momentary burst on auto seemed to fix that.
  8. Yep. As I suspected, although more than I'd guessed. Every tooth has been shaved off the bevel gear where it connects to the spur gear, which looks intact. The piston appears to move freely and all the gears spin as they should. There are just no teeth on that gear above. Strangely, there's no damage on the spur gear. Perhaps that's the harder metal. One thing has occurred to me though, as I remember from the build. The nozzle return spring (pictured below) is a fraction shorter, approx 1/12th shorter. I recall the spring loop at one end broke off somehow, or straightened, so I bent one of the coils 90degrees to make a new one, effectively shortening the spring by just a fraction. I don't know what effect that would have, but it's worth replacing whilst I'm inside. Other than that, I'm not sure what would cause that gear to completely strip?
  9. Nope, I'm not sure, but I'm over 98% confident it's gears again. The motor is freely turning the first gear but the other two aren't engaging with it. They're all in alignment though and move freely on their own. If I turn the two piston gears they again move freely and start to drag the piston back. When I spin the motor again, they nudge, as if just touched, but then presumably fall back into the 'clean' section where there are no teeth to engage the gears. I will strip down later tonight and report back. However, something else I noticed; when I move the two piston gears [can't remember the proper names for the three] the piston starts to move back but then settles back again. There's no main spring in the gearbox at the moment, but I suspect that's the spring attached to the long plastic actuator thing? It's presumably supposed to do that? I guess I could also gently push the piston slightly forward so it disengages with it's rotary gear, allowing me to turn them 180 - likely then I'll see if there are missing teeth. It never did damage the piston btw. That's all metal teeth and in great condition.
  10. Could I have used the wrong oil/grease and slowed down the piston? But as you say, if it's doing 22rps it must have been moving ok. I cleaned out the barrel etc and all the previous gunk in the gearbox. My concern is that I could stick another set of gears in there and be in exactly the same boat in a few shots time again. 7.4v battery would be safer but I'm still really surprised that it seems so vulnerable. I'm tempted to get stronger/expensive gears - but I could still be throwing good money after bad. I'm only speculating on the cause of the failures. Can you think of any ways to confirm?
  11. My Specna Arms Edge SA-E11 has chewed TWO gearboxes. It's firing around 22fps on auto with 11.1v lipo - is this likely because the gear is meeting the piston on the way back? Is it a spring problem or a battery problem? TLDR; I had a brand new Specna Arms Edge SA-E11 from SoftairGames.net but within a month, the gearbox chewed itself up. I'd played with it 2 or 3 times only. The Orion gearbox that comes in these is supposed to be uprated with metal piston teeth, o-ring nozzle etc. and it was a nice replica. The gearbox is specified to handle springs up to 150. Evike.com recommend 11.1v lipo. Patrolbase suggest 7.4. Softairgames gave a choice, but said, "less trouble with the 7.4 without being specific about what that meant". So I decided to get the 11.v - as I'm a noob and more is better right? Gun Sucks - seems you *don't* get what you pay for The first trouble was, when it arrived with a weak 270fps, nowhere near the promised 340fps and not terribly accurate. Shots would go left and right. I spoke to SoftairGames and they reluctantly admitted that they may have swapped out the spring for a non-EU spec one and finally, reluctantly agreed to send out the correct spring. I'm not impressed with Softairgames by the way. Their customer service doesn't put the customer first. They try to avoid liability and against EU law they'll expect you to pay shipping charges in both directions, even under Warranty, which they also shorten. Spring upgrade (to correct?, stock Specna spring) They are quick-change springs inserted from the back. They are also shorter than standard springs - I don't know if anyone else has seen those before or whether it matters. I put in the new spring, and corrected some barrel wobble using rubber grommets which appeared to be a culprit of the wayward shots. Broke on first test Test firing no problem on semi, but almost as soon as I put the gun on auto, there was a clunk, followed by an awful noise and screeching. Looking inside the gearbox from the back I could see the stripped gears. I won't buy from SoftairGames.net again I didn't trust SoftairGames to repair or replace FoC and were likely to hold my gun to ransom in Italy (shipped at cost from me in the UK) and say that I'd somehow not replaced the spring (which they swapped first) properly (which I had). I wasn't getting any joy from the EU consumer advice department so I figured since I was into about £60 worth of shipping alone I might as well write off SoftairGames and chalk it down to a bad experience and repair it myself. Warranty more or less unusable. I repaired the gearbox myself. Now those of you who remember doing this for the first time know this isn't a quick job, but to cut a long story short, I repaired and slightly upgraded the gearbox with Nuprol 16:1 gears, 8mm Ceramic bearings from Patrolbase and nicely shimmed it. Imperceptible lateral movement, gears spinning freely, gun grease (ptfe grease on the spring so as not to corrode the plastic piston) and a little silicone oil on other parts like the nozzle. Looks good so far All good again on Semi but now 370fps on 0.2 so unfortunately, I had to downgrade it. So I replaced the weedy original spring. Find on Semi. Fine on full auto. And now firing at 22fps. So I took it to out to play yesterday. 2 Minutes on Auto and it failed again. I had a game on semi, mainly to zero the sights, and the barrel wobble I stopped seemed to make it fire much more straight. But in the second game I started to fire three round bursts in full auto mode. Within a couple of minutes, the gun was spinning gears like the cogs weren't engaged. Upon inspection later that night, I can't see any stripped gears looking through the inspection holes, and they're all inline in the right places, but the motor is clearly engaging and spinning the first gear but it's not making contact with the second two. So I'm guessing that when I open the gearbox up I'll find a few teeth missing again. Might as well upgrade to HPA? I'm not sure where to go from here. I don't what to throw good money after bad. Am I just unlucky with the 11.v Lipo? The rate of fire doesn't seem that high. Although I'm now an accomplished gearbox mender, it takes time and the parts aren't cheap. I'm confident I took my time to get it right. Would I be better investing in upgrading to HPA instead, for a simpler device? From what I can tell, the only reason I wouldn't want to do that is the airpipe coming out of the bottom. Although most guns are large enough, I can't work out why they can't hide a compressed air cylinder in the design. Help, advice please?
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