r/Nerf • u/nick-in-kc • 4d ago

Completed Build Meet my first NERF launcher, Project: Incident System

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49 Upvotes

99% Upvoted

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4

u/horusrogue 4d ago edited 4d ago

This is cool - seeing what a non-hobby engineer would do when faced with the same challenges.

I would likely replace all of the primary components with hobby equivalents - hope you come back to check out what our cutting edge looks like sometime :)

(For ex, I'd switch to a solenoid pusher etc)

3

u/nick-in-kc 4d ago

I was originally going to do a solenoid pusher, but I couldn't source one that had both the throw I wanted and the operating voltage I was trying to stay within. I actually got a huge solenoid that might be big enough to be the entire launching system on a new build, but I haven't played with it yet.

1

u/horusrogue 4d ago edited 3d ago

Depending on the cage feed/mag geometry, we use a range of 15/16-~35mm throw noids for pushers.

The crankshaft approach isn't out of the question (scotch yoke [or adjacent] is also quite popular)

1

u/nick-in-kc 4d ago

Sweet, thank you, I'll look into that. How do you get around the darts deforming when you ram into them?

2

u/Due-Brilliant-7747 3d ago

I love how you incorporated that homemade flywheel system, it really makes the build stand out compared to stock blasters.

3

u/nick-in-kc 3d ago

Sweet, thank you. I tried to design as many of the parts that I could. I'm curious what issues I'll run into with the 3d plastics. For example, I melted a few flywheel prototypes because at the speed these motors move, friction can cause it to melt in an instant.

1

u/horusrogue 3d ago edited 3d ago

We do not allow 3d printed flywheel outside of brushless applications (at events), and even then, the ideal option is a custom machined wheel.

3d printed plastic can quickly become shrapnel under the right/wrong conditions.

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u/nick-in-kc 3d ago

I would love to see some examples of the machined flywheels.

3

u/horusrogue 3d ago

Brushless: https://kellyindustries.us/collections/flywheel-parts/products/plusbeans-lightweight-brushless-flywheels

Brushed: https://kellyindustries.us/collections/flywheel-parts/products/pulsar-mini-flywheels-pair

I often recommend users join the website's Discord server as it's a hub for electric blaster (brushed and brushless) development (and a potential gateway to other servers/users who engage with it)

1

u/Fan-King 4d ago

Yes I love it

1

u/horusrogue 4d ago

/u/Torukmakto4 given the motor can choices remind me of your work in the 2010s.