Jyang

Thought I'd save my findings online in case someone finds this relevant:

Using some of the methods described here:

http://nerfhaven.com...hl=+turbo +fire

Pics:

https://imgur.com/a/jQPiYEb

i.e.

Added 1 extra spring

Removed dart pegs

Removed plastic shroud

Re-lubricated using silicon grease

Added a bit of epoxy for extra reinforcement

Spring:

Used some 2 random springs, I'm unsure of their specification, unfortunately - they appear to have similar size/stiffness to stock, which is in turn similar to stock Australian elite springs. It likely makes little difference though, since the plunger tubes are small/resistance is low/there's some air leakage between the cylinder/plunger.

Rotation mech:

Even after removing the shroud, as you can see in the video, there seems to be some rotation issues with FVJs. They don't actually occur that often during operation, since the pump typically moves slightly faster, but it's worth noting.

Performance test:

Performance data (fps):

62.1, 61.6, 59.8, 56.4, 59.7, 69.5, 67.3

High of 69.5, average of 62.4, SD 4.60 with a sample size of 7 shots. Just under stock American elite performance.

Also I'll try to take better pictures next time I make notes, only just realising the pictures aren't that comprehensive.

Just thought I'd advertise the war here on the off chance there were any Adelaideans in here.

@Mods - If there's any issue with the way I've posted this, feel free to remove/tell me, I'm more than happy to fix it.

https://www.facebook...40308190041711/

Copied from the Gooni's event description:

War, war never changes...... except the location.

Bombay Street Reserve Oaklands Park.

Time: Sunday 10th June, start 10am 

Usual policies apply : All players must have appropriate eye protection, blasters that fall within the FPS and visual regulations.

*FPS limited to 180* ( for FFP sharpie class will be able to use blasters up to 250FPS )

Dart hire will be available on the day. 
Full length supplied by Neko Jitsu @ $5 for the day giving you 100 darts per round.

Game types may include but not be limited to: 
CTF
TDM
Cap'n'Hold

We will be trying a few short rounds of 5V5 FFP after the break for lunch .

https://www.google.c...8!4d138.5465804

Hey everyone,

Hope this is the right place to post, I wasn't sure if this belonged here, or as a concept thread.

Basically, I'm hoping to 3D print a nerf flywheel blaster using a PLA printer with a 20x20x20 print capacity, that has yet to be calibrated, but having little experience with flywheels or 3D printing, I'm going to need a little bit of advice.

Firstly, because I don't have any better ideas for aesthetics, I'm planning on making a blaster with a similar appearance to the FG42, so the gun is going to be side-fed.

I've seen very little information on this online, and I'm not sure if it's because the only gun that springs to mind with side feeding is the raider (which seems largely unpopular), or if it's because side feeding is a bad design.

Secondly, I've found little in the way of people reinforcing their larger 3D prints, like stocks and grips with cheaper, stronger material like wood/metal rods.

Given that I'm planning on 3D printing the case, I'm tossing up between this or trying to find some broken/discarded nerf shells to use as casing, and building upon those instead.

Thirdly, I've several DC motors salvaged from printers I'm hoping to use.

The two on the far left are 130s, I believe, but I'm not sure of their specifications, so it's unlikely that I'm going to be using them.

From (fairly unreliable) datasheets I've found online, it appears that the third and fourth motors are capable of producing 12-15k RPM, which is no where near as fast as the desired 20k+ that I've heard reported from Rhino MTBs or the Tamiya Plasma Drives, but I feel as though through a combination of larger flywheels (3D printing custom flywheel cages is an option), and a higher torque, these should suffice.

For reference, I gather that the current "high end" motor is the Rhino MTB, producing 36k RPM, with the 2" radius stock flywheels, this results in tangential velocity of roughly 628fps, achieving the glass ceiling of 120fps

Since I'm happy achieving around 100fps, I feel as though this is overkill, especially since I only have NiMh batteries to work with. I'm wondering if anyone has any experience with high-torque, low-RPM motors like the ones I have?

Alternatively, I'm toying around with the possibility of using the third and fourth motors in my image as afterburners, with the small ones as launchers. Also, I should be able to mimic the shape of worker wheels, since I'm 3D printing the cage and wheels, anyway.

Anyway, I've got a ton of things to figure out, and I really appreciate you guys letting me post here.