Flywheel Do's and Don'ts

IIRC their shooter was that wide because they reused a 2017 fuel shooter which also had weights on the shaft. 1 Wheel + an inertia wheel should be plenty if you’re planning on shooting with a single stream.

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Thanks! That’s what I figured, I just wanted to double check.

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Is there a source for these Fairlane wheels? I cant seem to find any that are robotics related

McMaster Carr, search drive rollers.

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Okay, 1678 machined delrin 1.25" rod to length and broached to hex for many of our fairlane wheel designs and then arbor pressed these into the hubs. Take care to keep them concentric. When you start approaching a 4-5000 rpm range you need to start thinking about banding them to prevent wheels from delaminating from the steel hubs. Purchase 0.032 stainless safety wire from a trusted vendor and purchase a set of safety wire pliers, cut enough wire to wrap the wheel 3 or more times, wrap the wire centered on the wheel so that where they cross makes 2 full wraps, start the twist by hand and finish with the pliers so that you have a twisted segment at least 1 inch long, now trim your tail to about 0.75 inches, take a scribe or other sharp needle like implement and stab into the wheel just to the side of the tail at least as deep as the tail is long, lastly using some pliers force the tail into the wheel until its wire is flush against the wheel. I’ve run the fairlane wheels over 7500 rpm and was unable to cause them to delaminate after this.


Do you by chance have any images of this?

best I got for the moment

I did find that video. That’s what peaked my interest into the subject matter. An up close picture of the twist would be fantastic if it is possible.

I can do it tomorrow evening. I’ll do a step by step for you guys.


That would be amazing. I appriciate it! And I would imagine others will too.

Has anyone experimented with the blue 60A urethane Fairlane wheels? How do they compare to the black Neoprenes?

You might also consider this option. However, you can’t get them right away.

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Awesome! Thanks so much.

they are much tougher and harder to delaminate, however they are more prone to material pickup and can, depending on the game piece start building up a hard coating of “game piece”

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I didn’t have the safety wire last night and am quite annoyed about that. These are some pics from a wheel I pulled out the wire to show the last steps. I’ll try and find the safety wire today and show how you do the twist step.

Thanks! I see the model index, but not the ID for the material and durometer. I would assume those are the D60 Neoprene?

These are 35A, you probably won’t need to band the 60A wheels


Here is my walk through video.


Nice video, but where are the safety glasses. :face_with_raised_eyebrow: