Helicopters C

Locked
User avatar
JojoCho
Member
Member
Posts: 43
Joined: January 17th, 2017, 5:27 pm
Division: Grad
State: GA
Has thanked: 0
Been thanked: 0

Re: Helicopters C

Post by JojoCho »

parikhy wrote:This is going to sound crazy, but any advice on hand cranking? Anyone have any tips or know how to build a winder? I don't think I will have one by the time regionals comes around, although I am doing my best to try and get my hands on one.
Worst case scenario you could always borrow a winder from someone at the tournament. But if you really want to make one, you could get like some sort of block, drill a hole through it, stick a dowel through the hole (make sure it can rotate freely), attach a sort of hook to the end of the dowel (holds the rubber band), and have a sort of handle on the other side of the dowel which you will use to turn. So it's like
7-----[ ]--o
7 is the rubber band hook, ---- is the dowel, [ ] is the block thing (use this to hold on while winding, basically the yellow block thing you see on Dave's winders), o is the turning handle

Really ratchet design but if you're short on time this might work
Chattahoochee High School Class of 2019
University of Georgia Class of 2023
User Page
DoctaDave
Member
Member
Posts: 167
Joined: December 28th, 2013, 10:59 pm
Division: Grad
State: CA
Has thanked: 0
Been thanked: 0

Re: Helicopters C

Post by DoctaDave »

parikhy wrote:This is going to sound crazy, but any advice on hand cranking? Anyone have any tips or know how to build a winder? I don't think I will have one by the time regionals comes around, although I am doing my best to try and get my hands on one.
You can make one out of lego gears and brackets. I believe I've seen a picture of one floating around the forums somewhere, but I can't find it. :(
DaPlug
Member
Member
Posts: 16
Joined: March 9th, 2016, 10:14 pm
Division: C
State: CA
Has thanked: 0
Been thanked: 0

Re: Helicopters C

Post by DaPlug »

What are the highest raw times people have seen at competitions lately for chinooks?
Mira Loma High School
2016:
Air Trajectory/Robot Arm/Wright Stuff/Game On
Regionals: 7/2/2/1
States: 3/2/4/2
Nationals: 4/1/3/-
eli9778
Member
Member
Posts: 1
Joined: January 11th, 2018, 5:22 am
Has thanked: 0
Been thanked: 0

Re: Helicopters C

Post by eli9778 »

Is it legal to 3D-print your helicopter's propellers?
User avatar
Unome
Moderator
Moderator
Posts: 4320
Joined: January 26th, 2014, 12:48 pm
Division: Grad
State: GA
Has thanked: 225 times
Been thanked: 82 times

Re: Helicopters C

Post by Unome »

DaPlug wrote:What are the highest raw times people have seen at competitions lately for chinooks?
I've yet to hear of anything higher than about 2:15 raw time.
Userpage

Opinions expressed on this site are not official; the only place for official rules changes and FAQs is soinc.org.
MGoGolf
Member
Member
Posts: 7
Joined: December 5th, 2017, 12:05 pm
Has thanked: 0
Been thanked: 0

Re: Helicopters C

Post by MGoGolf »

Can someone post a picture of a working Chinook? New coach, tried numerous designs but not getting close.
Rêveur
Member
Member
Posts: 47
Joined: December 26th, 2017, 10:45 pm
Has thanked: 0
Been thanked: 0

Re: Helicopters C

Post by Rêveur »

DaPlug wrote:What are the highest raw times people have seen at competitions lately for chinooks?
What Mira Loma's tournament just a couple days ago? What were the best time then? Who were the best teams?
User avatar
Unome
Moderator
Moderator
Posts: 4320
Joined: January 26th, 2014, 12:48 pm
Division: Grad
State: GA
Has thanked: 225 times
Been thanked: 82 times

Re: Helicopters C

Post by Unome »

MGoGolf wrote:Can someone post a picture of a working Chinook? New coach, tried numerous designs but not getting close.
An approximation of Dave's design
Userpage

Opinions expressed on this site are not official; the only place for official rules changes and FAQs is soinc.org.
MGoGolf
Member
Member
Posts: 7
Joined: December 5th, 2017, 12:05 pm
Has thanked: 0
Been thanked: 0

Re: Helicopters C

Post by MGoGolf »

Unome wrote:
MGoGolf wrote:Can someone post a picture of a working Chinook? New coach, tried numerous designs but not getting close.
An approximation of Dave's design
Thank you! Assuming two motors are used, it would seem difficult to have a team of 2 wind up two motors, attach, and set off at the same time.
ScottMaurer19
Member
Member
Posts: 592
Joined: January 5th, 2017, 9:39 am
Division: Grad
State: OH
Has thanked: 0
Been thanked: 1 time

Re: Helicopters C

Post by ScottMaurer19 »

MGoGolf wrote:
Unome wrote:
MGoGolf wrote:Can someone post a picture of a working Chinook? New coach, tried numerous designs but not getting close.
An approximation of Dave's design
Thank you! Assuming two motors are used, it would seem difficult to have a team of 2 wind up two motors, attach, and set off at the same time.
Make one of the stooges shown in the back of the FFM kit instructions
Solon '19 Captain, CWRU '23
2017 (r/s/n):
Hydro: 3/5/18
Robot Arm: na/1/1
Rocks: 1/1/1

2018 (r/s/n):
Heli: 2/1/7 
Herp: 1/4/4
Mission: 1/1/6
Rocks: 1/1/1
Eco: 6/3/9

2019 (r/s/n):
Fossils: 1/1/1
GLM: 1/1/1
Herp: 1/1/5
Mission: 1/1/3
WS: 4/1/10

Top 3 Medals: 144
Golds: 80
Locked

Return to “Helicopters C”

Who is online

Users browsing this forum: No registered users and 1 guest