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CTMSRoadScholarKING wrote:This is my first building event. I have had a problem with too much friction due to the rotors I believe rubbing up on the shaft. My partner and I added a tiny bead, but the bead ended up still causing friction. Any tips for us?

What exactly do you mean by too much friction? What exactly is happening during operation?

daydreamer0023 wrote:

CTMSRoadScholarKING wrote:This is my first building event. I have had a problem with too much friction due to the rotors I believe rubbing up on the shaft. My partner and I added a tiny bead, but the bead ended up still causing friction. Any tips for us?

What exactly do you mean by too much friction? What exactly is happening during operation?

The friction between the rotors and the shaft is not allowing the rotors to spin fast enough, so it is struggling to even fly. Thanks for your help.

CTMSRoadScholarKING wrote:

daydreamer0023 wrote:

CTMSRoadScholarKING wrote:This is my first building event. I have had a problem with too much friction due to the rotors I believe rubbing up on the shaft. My partner and I added a tiny bead, but the bead ended up still causing friction. Any tips for us?

What exactly do you mean by too much friction? What exactly is happening during operation?

The friction between the rotors and the shaft is not allowing the rotors to spin fast enough, so it is struggling to even fly. Thanks for your help.

Hm...describe what materials you are using to make your heli. A picture/diagram might help too for explaining.

daydreamer0023 wrote:

CTMSRoadScholarKING wrote:

daydreamer0023 wrote:
What exactly do you mean by too much friction? What exactly is happening during operation?

The friction between the rotors and the shaft is not allowing the rotors to spin fast enough, so it is struggling to even fly. Thanks for your help.

Hm...describe what materials you are using to make your heli. A picture/diagram might help too for explaining.

The glass beads provided with the FFM kit have always worked well for me.

andrew lorino wrote:

daydreamer0023 wrote:

CTMSRoadScholarKING wrote: The friction between the rotors and the shaft is not allowing the rotors to spin fast enough, so it is struggling to even fly. Thanks for your help.

Hm...describe what materials you are using to make your heli. A picture/diagram might help too for explaining.

The glass beads provided with the FFM kit have always worked well for me.

Thanks! I’ll try that out.

When it says "marked with a black marker" does that mean the entire surface? I see the FFM diagram does have it covered (and I'd assume it'd be necessary because of visibility) but the wording, to me, seems otherwise. And I'm afraid I will manage to puncture a hole if I try to color it all. Thanks!

Edit: Oops. I should read the entire forum first, my bad.

What scores are you all getting at this point? We're struggling a little bit...

Rule 3.f.
Is the limit of "up to three fixed pitch rotors, not exceeding a maximum diameter of 30.00 cm" a limit on each rotor, or combined? That is, can I use three (3) 30cm rotors, or am I limited to 3 rotors of 10cm, 2 rotors of 15cm or 1 rotor of 30cm?

Rules 3.b. and 3.f. (no pre-glued joints or pre-covered surfaces; any materials except boron filaments)

Can I use a plastic gearbox?

MGoGolf wrote:Rule 3.f.
Is the limit of "up to three fixed pitch rotors, not exceeding a maximum diameter of 30.00 cm" a limit on each rotor, or combined? That is, can I use three (3) 30cm rotors, or am I limited to 3 rotors of 10cm, 2 rotors of 15cm or 1 rotor of 30cm?

Each can be 30 cm (unofficial of course, but it's not really a controversial interpretation).