Our homemade chrony has been confirmed working! Here are some pictures.
As you can see, the chrony has been integrated into a retaliator stock barrel. The barrel has been extensive gutted to fit the 1 inch diameter PVC pipe. However, the barrel's attachment system is untouched and remains fully functional. This allows for easy FPS measuring of all Nerf blasters with barrel extension tips!
More after the jump!
Saturday, September 28, 2013
Tuesday, September 24, 2013
The Works Guide: Zombie Strike Hammershot
Welcome to the Hammershot's edition of The Works Guide. This guide aims to cover modifications to the Nerf Zombie Strike Hammershot. While it is not a complete guide to this relatively new blaster, it will attempt to cover several facets of direct plunger modifications as they apply to the Hammershot.
Read on after the jump...
Friday, September 20, 2013
The Truth Behind Trustfires
It seems that one of the most heavily debated questions among the Nerf community is: can Trustfires be used for mods?
The short answer is: yes. The Pros and Cons of Trustfires are listed below.
Pros:
FB1: How to select an electrical power system: motor and battery
Now I could bore you with a bunch of facts and logic (sort of what the above linked guide is composed of), but suffice it to say that Trustfires are not made for high power applications, and shooting darts at the range you want is. Engineering-wise, stressing a component beyond its specified limits is bad. In the real world, this only becomes a problem if undesirable effects are seen. To my knowledge, I have never heard of anyone's Trustfires blowing up or catching fire or even leaking due to abusing them in their Nerf blasters. In addition, because Trustfires are current limited, they do not trigger the thermoresists (based on my testings, may trigger in a hot day). I slapped in 3 Trustfires into a Rapidstrike for the luls and it fired beautifully. When I switched them for a 3s LiPo, the thermoresists got trigger after only a few shots. Having to be able to leave the thermoresists in the blaster is safer, especially for the audience that Trustfires attract (noobs). In addition, since Nerf flywheel systems are not "torque" limited at no load, high RPMs, a trustfire system can project a dart nearly as far as a system with a proper battery. This means that the benefits of over-volting still applies as long as the motors at no load (revved but not shooting darts) do not pull more than the Trustfires' maximum continuous discharge current (2.25 A for a single/in series 14500, 900 mAh cell/cells). The spin-up/recovery time is the only real performance factor that suffers from using a current limited battery. However, this does not mean that you should push the voltage as high as possible. Higher voltages mean higher no load currents as well as increased spin-up/recovery times.
In the end, Trustfires are no where near the ideal battery for Nerf power applications. However, its near "drop-in and shoot" ability makes it a very compelling mod for those who do not have the time/technical expertise/tools/money/patience to carryout a real, proper mod to their blaster.
The short answer is: yes. The Pros and Cons of Trustfires are listed below.
Pros:
- Fits AA battery holders
- Very cheap
- Easy to mod
- Limited current output (2.5C max. cont. => 2.25 A max. cont. current, 4.5 A max. burst current)
- Limited current output (2.5C max. cont. => 2.25 A max. cont. current, 4.5 A max. burst current)
- Low Capacity (900 mAh)
FB1: How to select an electrical power system: motor and battery
Now I could bore you with a bunch of facts and logic (sort of what the above linked guide is composed of), but suffice it to say that Trustfires are not made for high power applications, and shooting darts at the range you want is. Engineering-wise, stressing a component beyond its specified limits is bad. In the real world, this only becomes a problem if undesirable effects are seen. To my knowledge, I have never heard of anyone's Trustfires blowing up or catching fire or even leaking due to abusing them in their Nerf blasters. In addition, because Trustfires are current limited, they do not trigger the thermoresists (based on my testings, may trigger in a hot day). I slapped in 3 Trustfires into a Rapidstrike for the luls and it fired beautifully. When I switched them for a 3s LiPo, the thermoresists got trigger after only a few shots. Having to be able to leave the thermoresists in the blaster is safer, especially for the audience that Trustfires attract (noobs). In addition, since Nerf flywheel systems are not "torque" limited at no load, high RPMs, a trustfire system can project a dart nearly as far as a system with a proper battery. This means that the benefits of over-volting still applies as long as the motors at no load (revved but not shooting darts) do not pull more than the Trustfires' maximum continuous discharge current (2.25 A for a single/in series 14500, 900 mAh cell/cells). The spin-up/recovery time is the only real performance factor that suffers from using a current limited battery. However, this does not mean that you should push the voltage as high as possible. Higher voltages mean higher no load currents as well as increased spin-up/recovery times.
In the end, Trustfires are no where near the ideal battery for Nerf power applications. However, its near "drop-in and shoot" ability makes it a very compelling mod for those who do not have the time/technical expertise/tools/money/patience to carryout a real, proper mod to their blaster.
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