Mike 8-{> Posted April 19, 2014 Report Share Posted April 19, 2014 .....some sort of magnetometer....... A hall effect sensor is probably the thing to detect the magnet. A magnetoresistance (MR) sensor, like the Honeywell HMC1001 or Philips KMZ51, would probably be too sensitive. Link to post Share on other sites
Stuey Posted April 19, 2014 Report Share Posted April 19, 2014 Is there such a thing as too sensitive? Just means you'll get larger steps between the different ammunition counts. I've used a HMC1001, they can detect the Earth's magnetic field (I don't suppose you were using it for something that in a rocket...?) pretty well so you'd only need a tiny magnet on a magazine follower. Link to post Share on other sites
Mike 8-{> Posted April 19, 2014 Report Share Posted April 19, 2014 I was, in one of Robert Galejs Magnetic Apogee Detectors. Several folks I know have tried them too and if you used a steel launch rod the MAD could be triggered by the steel rod as the rocket launched. You wouldn't want the bolt stop to function if you happened to hold another steel mag too close to the sensor Link to post Share on other sites
Stuey Posted April 19, 2014 Report Share Posted April 19, 2014 Ha, we had to design the sensor circuit for a rocket as part of a project. Looks familiar. Can't remember if we used a steel launch rod or not but the sensor didn't trigger before the apogee. (edit: I looked at a few MAD designs on the web and several of them re-zero once the rocket is on the launch rod and ignore small changes to combat the false triggering). I think it was being discussed as a way of displaying rounds remaining, a bolt stop can already be implemented in other, more reliable, ways. Anything sensitive enough to be able to distinguish between individual BBs is probably going to require careful design to prevent outside influences rendering it inaccurate/useless. Link to post Share on other sites
PureSilver Posted April 19, 2014 Report Share Posted April 19, 2014 I think it was being discussed as a way of displaying rounds remaining, a bolt stop can already be implemented in other, more reliable, ways. Exactly. There are other ways I can think of tracking the follower's progress through a midcap magazine (individual contacts inside the rails that guide the follower, with the follower making a particular connection denoting a particular number of remaining rounds, or pulling a string from a reel as it travels, with the string's drum measuring how much string has unrolled and calculating the remaining rounds) but both of those require quite complex sensors inside the magazine. This magnetic interface requires (in theory, anyway) only the replacement of the magazine follower plus the sensors somewhere close to the magazine well to count the distance of the follower and thus the remaining round count. All this is much more complicated than just assuming a certain number of rounds in each fresh magazine, and resetting to 'full' every time a new magazine is inserted (like the XCorTech does, manually) but it does take into account the possibility of loading a partially loaded magazine, which the XCorTech and similar systems cannot. In the interim the XCorTech is definitely a clever system; I would personally rather integrate such a round counter into a smart 'FET. Like my new BTC Spectre NexGen, for example, which has electronic bolt lock (so it knows when the magazine is empty) and can obviously count rounds fired. A simple programmable IC and a nice display and housing could create a very clever remaining-round counter (the only functionality I would want) that automatically reset every time a new magazine was inserted. Link to post Share on other sites
Pepperisit12 Posted April 19, 2014 Report Share Posted April 19, 2014 A problem with modifying the magazines to run a reel of string or electrical contacts is that you have to modify all of your magazines quite heavily. Cost and time would mount up. Whereas just installing a magnetised follower into each mag would be relatively cheap/quick Link to post Share on other sites
Wild_XIII Posted April 30, 2014 Report Share Posted April 30, 2014 I had a play with one of these at the last game I was at. I wasn't wrong when I said it would suit the G5! It seems very simple to operate and everything functioned perfectly, apart from the ROF counter on my G5, it picked up the ROF after a very long burst, but on an AEG it didn't need as many rounds through it to get a reading. Overall though, it's a great bit of kit as the ammo counter really helps you keep tabs on your shot count, plus the box sits below the sights on the G5 so you can still aim, and then take a quick glance at your ammo count if you need to. Link to post Share on other sites
Pepperisit12 Posted April 30, 2014 Report Share Posted April 30, 2014 That mini review just makes me want one more Link to post Share on other sites
Deadmeat Posted April 30, 2014 Report Share Posted April 30, 2014 I'd get one once they start becoming off pre-order and actually in-stock... Gotta happen sometime soon... Link to post Share on other sites
kojak Posted April 30, 2014 Report Share Posted April 30, 2014 Could they not have made it more "PEQ" looking? It's overall looks would put me off, even at its low price point. Too bad they didn't make it in a a Wilcox RAPTAR shell. Still, this would be fun on a non-replica like my UAR. Link to post Share on other sites
Wild_XIII Posted April 30, 2014 Report Share Posted April 30, 2014 I'd love to be able to mod one into a small 'pip-boy' and wear it on my wrist! For the record, I know RDX Tactical are getting these in. I think they're around the £140 mark which is a good price considering the many features it has. Hell, a chrono and tracer unit alone would cost you almost as much! Link to post Share on other sites
Deadmeat Posted May 1, 2014 Report Share Posted May 1, 2014 I've never ordered from Evike before.... does anyone know roughly what shipping cost would be for one of these X3300w? It's only $100 on preorder: http://www.evike.com/products/46898/ Link to post Share on other sites
orlean11 Posted May 3, 2014 Report Share Posted May 3, 2014 I've never ordered from Evike before.... does anyone know roughly what shipping cost would be for one of these X3300w? It's only $100 on preorder: http://www.evike.com/products/46898/ I assume your asking shipping to the UK ? Looks like $30 USD, and with the coupon code your cost would be about $111 USD shipped. Evike International Super Saver: - Transit time varies depending on location. Flat rate of $30 for any small packages that qualifies. Link to post Share on other sites
Deadmeat Posted May 3, 2014 Report Share Posted May 3, 2014 Thanks orlean11, the coupon code didn't work for me but I guess $30 is reasonable for a small package to the UK. But once I tried to add anything else the shipping jumped up to $42... Oh well nvm.... Link to post Share on other sites
Wild_XIII Posted May 12, 2014 Report Share Posted May 12, 2014 I took the plunge and bought the one from RDX tactical they had on site yesterday. I'll hopefully get some kind of review written up soon. One thing to note is that you want to turn off the tracer unit when you're not using tracers. I was given away lots yesterday by my muzzle flashing at people! Link to post Share on other sites
Tat2 Posted May 12, 2014 Report Share Posted May 12, 2014 Anybody tried these with deans connectors instead of mini tamiya? I tried deans connectors on another plug and play mosfet (avocado) and it fried it Sent from my iPhone using Tapatalk Link to post Share on other sites
Stuey Posted May 12, 2014 Report Share Posted May 12, 2014 Changing the connectors fried a MOSFET? I smell a rat. Really want a X3300W. I am an electronics student though, I could just make one myself Link to post Share on other sites
Pepperisit12 Posted May 12, 2014 Report Share Posted May 12, 2014 ... flashing at people!That's a risky game when everyone has guns around you! Seriously though a decent review would be appreciated Link to post Share on other sites
PureSilver Posted May 13, 2014 Report Share Posted May 13, 2014 Really want a X3300W. I am an electronics student though, I could just make one myself I want a round counter that interfaces with my BTC Spectre NexGen. That knows every time I press the trigger; couldn't a round counter use that as the 'round fired' signal rather than a light-gate in the suppressor? I'm still gonna end up with the X3300W, I know... Link to post Share on other sites
Stuey Posted May 13, 2014 Report Share Posted May 13, 2014 It absolutely could yes, to be honest it probably wouldn't be that hard to rip apart the 3300 and connect the 'signal in' to its counter to something else, like your trigger switch. Alternatively, for just an ammo counter there exist chips that can drive those 7-segment LCD displays. Link to post Share on other sites
The Insider Posted June 19, 2014 Report Share Posted June 19, 2014 ok.. finally the X3300 has been released with some reasonable quantity available.should be hitting the smaller retailers hopefully before the weekend if not next week, https://www.facebook.com/media/set/?set=a.648548965229851.1073741990.463847467033336&type=1 Link to post Share on other sites
Pepperisit12 Posted August 22, 2014 Report Share Posted August 22, 2014 Anyone who owns one fancy putting a reivew up? Link to post Share on other sites
Skarclaw Posted August 22, 2014 Report Share Posted August 22, 2014 Anyone who owns one fancy putting a reivew up? one here : http://arniesairsoft.co.uk/forums/index.php?/topic/212940-xcortech-x3300/ Link to post Share on other sites
Pepperisit12 Posted August 22, 2014 Report Share Posted August 22, 2014 Thanks but I have seen that one (and replied) but anyone else? Link to post Share on other sites
Deadmeat Posted September 7, 2014 Report Share Posted September 7, 2014 Well I took advantage of an Evike promo and pre-ordered this Xcortech 3300 back in May, I've only just received a shipping note today 4 months after I paid up!!? Let's just hope it all works then I can share my opinion when it finally arrives!?? Link to post Share on other sites
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