Nerf Stryfe (UltraStryfe) Brushless Motor Cage & Wheels (Gen 4)

Facebook Group
https://www.facebook.com/groups/MakingStuffAwesome/

**** Why you should support me on Patreon ****
https://www.patreon.com/Ultrasonic2

Download the wiring and config App from here..
http://Ultrasonic2.com/MD_software/Ultra-Arduino.zip

Gen 3 V Gen 4
In alot of cases i have cages and wheels in both G3 and G4

G3 use racestar BR2205 motors only
Benefits
Cheap
Easy to get
High KV ratings

G4 use Brother Hobby R6 2205 motors only
Benefits
Cooler running
Faster Spin up. (dynos are available for Patreons)
Less noise

1750KV @ 4s(16v) = 28,000 RPM
2450KV @ 3s(12v) = 29,000 RPM
2700KV @ 3s(12v) = 32,400 RPM
3000KV @ 3s(12v) = 36,000 RPM
2450KV @ 4s(16v) = 39,200 RPM
2700KV @ 4s(16v) = 43,200 RPM
5-6 Sure as long as the electrics can take it.

Motors
https://outofdarts.com/collections/motors-2019/products/brotherhobby-r6-2205-brushless-motor-multiple-kv-ratings?variant=31098957856810

https://www.blaster-time.eu/shop/brotherhobby-returner-r6-2205-rainbow-motor-cw/

Amazon
https://amzn.to/2GOcgAG

BangGood
https://www.banggood.com/custlink/K3K3Ej8Hpc

GearBest
https://www.gearbest.com/brotherhobby-r6-_gear/?lkid=19774919

The motors need 8 (total) counter sunk m3 8mm long screws
AliExpress
http://s.click.aliexpress.com/e/c7J5ivSo

Amazon
https://amzn.to/2ItmdpU

Battery selection
Assuming you have a single stage Ultra Stryfe now, and you have a 3s 1500mah battery (This is smaller than i would ever run) and you're happy with that, then if you go form 1 stage to 3 stages you'll need 3 times the capacity for the same run time .. so 4500mah..

But it's unlikely you'll stop at 3s as you'll be limited by RPM and the 3rd stage probably wont be doing anything ... If you bump them all to 4's that's 33% more voltage and current so you'll need a battery 33% bigger or .. 6000mah..

Get the Dominator Lipo Power Stock here
https://www.thingiverse.com/thing:3272587/edit

Battery Turnigy Graphene Panther
Amazon
https://amzn.to/2NedXIY

HobbyKing
https://hobbyking.com/en_us/graphene-2200mah-3s-75c.html?affiliate_code=NWMBPALUPSESFPQ&_asc=1313262664

AliExpress
http://s.click.aliexpress.com/e/ciythXoy

GearBest
https://www.gearbest.com/3s-65c-lipo-2200mah-_gear/?lkid=19775127

BangGood
https://www.banggood.com/custlink/m3vDdo4uJv

Recommended Ammo
Most ammo has been extensively tested for reliability but FB users and the Below has proven to be the most reliable.
http://s.click.aliexpress.com/e/qrNZFqr

Worker on AliExpress
http://s.click.aliexpress.com/e/NNNF6Qj

Nerf Ammo on AliExpress
http://s.click.aliexpress.com/e/66yZ3fu

Worker on Amazon
http://amzn.to/2FK7xfG

Nerf Ammo on Amazon
http://amzn.to/2BUpPIQ

Nerf Blasters on Amazon
http://amzn.to/2FIgRk6

FYI you do not need to cut the stryfe to fit the motors in so NO "Motor cover" is required.. Mine has motor covers because previously i was running 180's. This means your blaster can look completely stock if you wish.

Printed on Tronxy X3A 3D Printer

The Licnence you agree to when downloading this thing prevents you from making a profit from MY thing. This means you CAN NOT sell this or any of my other things on places like Ebay, Facebook, Forums or Etsy. You also may Not sell My parts as Part of a complete blaster. I don't profit from putting this thing us as a Free download and therefore no one else should too.

Due to the specific print requirements required to print a successful Ultra cage and Wheels we have now opened a Etsy store. Purchasing from this store you can be assured a HIGH quality product .. Not some cheap disappointing rubbish.
Also a complete drop in kits including the cage and wheels are also available to those who are looking for a simple drop in kit.
https://www.etsy.com/listing/571034709/ultrastryfe-brushless-motor-cage-by

Please consider Leaving me a TIP for this Free Nerf Mod ...Thanks

THING FILES

Ultrasonic2 Stryfe Cage Gen x.x.STL
3D Printed Stryfe motor cage (Does not Fit Rapidstrike)

Guides x2 (use these if you want max FPS)

Barrel (use this if you want max accuracy)

Smooth Bore Barrel (use these if you want max FPS)

Wheels
Wheels are now maintained at this link.
https://www.thingiverse.com/thing:2585080

ESC Selection
To start with it's useful to know that there are 3 Basic kinds of Blhehi ESC's
they are

Blheli (Oldest)
Blheil_s (Old)
Blheil_32 (Current)

Though we have previously recommend the Emax lightnings which are "Blheli" these are no longer recommend for a few reasons and now we are recommending " Hobbywing XRotor Micro 30A BLheli_32 DShot1200"

We are recommending Blheli_32 in general because they have significantly less trigger delay than the older BLheli ESC AND they have MUCH faster spinup to a limited RPM ..

We are recommending "Hobbywing XRotor Micro 30A BLheli_32 DShot1200" Specifically because these have been tested to have effectively NO trigger delay at all and therefore are ideal for our use case. Please be aware that there are other "Hobbywing XRotor Micro BLheli_32" Esc's but these have not been tested to have 0 trigger lag. Only the recommended ESC has been proven to have basically no lag.

Can you use what ever esc you want ?
Yes you can and you could say that if you have a stryfe with a manual pusher then you'll be hard pressed to tell a delay of 0.1 of a second and it doesn't matter anyway cos you have to pre pull the rev trigger anyway. HOWEVER if you have a Auto pusher and want the fastest response possible then the recommended ones are currently your best and only option (and only independently verified). IF you do wish to go with some other ESC please ensure it's Blheli_32 not any of the older models

Hobbywing XRotor Micro 30A BLheli_32 DShot1200. Two ESC's are required.

Aliexpress
http://s.click.aliexpress.com/e/bfa3JbLK

Amazon
https://amzn.to/2QLDGd7

BangGood
https://www.banggood.com/custlink/G3KKdOiFWH

GearBest
https://www.gearbest.com/Hobbywing-XRotor-Micro-_gear/?lkid=19774928

SUPPORTING Files AND hardware / Electronics can be found from the Gen 3 Stryfe cage found there.
https://www.thingiverse.com/thing:2460171

Update 24/Oct/2018
Released Gen 4 18 Feb 2019

Update 29/June/2020
Added Smooth bore Barrel
Updated cage to 3.1 It turns out that different Stryfes have different cage post heights meany MANY blasters are not flinging darts directly down the Barrel !!! This is resolved in 4.2. if you have anything other than a "BLUE" stryfe you should probably re print the cage.

https://youtu.be/srEMSDbP1bU
https://youtu.be/s8ThXxCSoDE
https://youtu.be/NUk5mBl5zhI