# Wooden Roller coaster model (Engels/English)

9 Steps
Deze Instructable is in het Engels.
Voor de Nederlandse versie, klik hier goo.gl/zz6BA

This Instructable is in English.

For our physics project, we (Denise and Frank) built a wooden roller coaster model. Using this model, we then calculated the g-forces on the roller coaster. In this instructable we explain how we have built the roller coaster.
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## Step 1: Supplies

You will need:

• Ice cream sticks (amount depends on the size of the roller coaster)
• Wood glue
• Skewers (amount depends on the size of the roller coaster)
• Drill
• Drill bit (same size as the skewers)
• Strips lakboard
• MDF board
• Cable clips
• Any other clamps
• Cart. In our case a lego lego train cart with wheels (these wheels have a flange, which ensures that the cart stays nicely on the track)
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sitearm says: Mar 27, 2011. 3:48 PM
* Aha! Found the car picture (makes note to self, "scroll right") *

Cool project - "too cool for school" except it WAS school - nice!

My head is filled with questions - please ignore if not interesting:
. How long did you have to build it?
. What did you get for the g-force?
. What did the teacher say?
. Did you get in the paper?

Making a circle in the track would need the track strips to be put on their edges, yes, so they could be bent in a circle?

Ciao!
fraers (author) in reply to sitearmMar 28, 2011. 8:19 AM
Thanks.

- We worked on it for about 13 hours.
- we devided the track in 4 parts: the big hill, the valley, the hill and the straight track.
big hill: 0.72 g
valley: 2.62 g
hill: -6.22 g
straight track: 0.5 g
- The teachers of our school found it very good.
- We did not get in the paper.

We could make the track into a circle, but we only built this to calculate the g-forces.
maramason in reply to fraersOct 22, 2011. 10:56 AM
How did you arrive at your calculations for the big hill, valley, etc...?
TANZMEISTER in reply to maramasonNov 7, 2011. 4:45 AM
Newton's Second Law
Force = mass times Acceleration

fraers (author) in reply to TANZMEISTERNov 20, 2011. 6:04 AM
Yes, for the big hill and the straight track we used that formula, but also another one:
Force = mass * gravitation * sin angle of the hill.

We combined those two formulas so we could calculate the acceleration:
acceleration = gravitation * sin angle of the hill

To get the g-force we divided the acceleration by the gravitation (9,81).

For the valley and little hill we used this formula:
acceleration = (average speed * average speed) / radius of the valley/hill.

To get the g-force we had to divide the acceleration by the gravitation (9,81)
Danny_Payne says: Apr 10, 2011. 2:32 AM
Hey, I really wanna make this and continue it round into the circle, maybe even the full coaster, but just wondering how many ice cream sticks you used, I couldn't see anything about it.
Thanks!!
fraers (author) in reply to Danny_PayneJun 12, 2011. 4:54 PM
I don't know how much ice cream sticks we used. We had bought 500 sticks and I think we used about 300. Not all of them are in the roller coaster, some of them broke or were disfigured.

It also depends on the lenght of the rollercoaster how many sticks you need.

I hope you can make a full coaster. Please let me know when it's done!!
tinker234 says: Jun 2, 2011. 4:54 PM
hey just a thought this is amazing could i upscale to ride one yours is amazing just a thought
playfulplans says: Apr 17, 2011. 7:08 AM
Yeahhhhhh!!!

This is an Excellible... thanks so much for sharing it.

Kevin
chicopluma says: Mar 30, 2011. 6:56 AM
impressive
slaitch says: Mar 23, 2011. 2:25 PM
Oh God, the sound effect. I just watched the video like 30 times for that alone.
Press 1 repeatedly :D
Thanks, i didn't know that - makes life so much easier having a few tricks up your sleeves!
You're welcome! If you want to know, I learnt it from comments on other YouTube videos...
FuzzyBearGeek in reply to slaitchMar 28, 2011. 7:31 AM
Haha. Me too!
Half-Life in reply to slaitchMar 27, 2011. 7:46 AM
cant...stop...hitting....play
michaelgohjs in reply to slaitchMar 27, 2011. 2:13 AM
i have to admit i did the same...
mashedpotato13 in reply to slaitchMar 26, 2011. 7:57 PM
HUI YAAAAAAAAAAAAAAAAAAAAAA!!!
Spaceman Spiff in reply to slaitchMar 25, 2011. 5:40 AM
HA HA, that was really unexpected!
D00M99 in reply to slaitchMar 23, 2011. 3:30 PM
2 minutes of captured curiosity. XD
pineappleattack98 in reply to D00M99Mar 24, 2011. 8:22 PM
well duh that's the sound roller coasters make! YAAAAAAHHH!!!!
FuzzyBearGeek in reply to pineappleattack98Mar 28, 2011. 9:09 AM
It sounds even better in 480p!
*chuckle*
The "p" in 480p stands for pow, right? So it's "480 pow," pow being that extremely complicated scientific measurement of sound (something like pi over wavelength per second)?
no clue. i thought it meant pixels but thats cause im weird=)
pineappleattack98 in reply to pineappleattack98Apr 1, 2011. 8:51 PM
wait actually i get it! the people on the roller coaster are screaming cause theyre scared!
Beergnome says: Mar 28, 2011. 7:23 PM
First off, Kudos to a great project! I certainly hope your teacher gave you great marks for it!

second, the design you came up with for building it is great, simple, and expandable. the way it is right now is right around the "G-scale" model railroaders would use.

the Basic block makes for a stackable cellular structure that anyone could emulate to build a "full sized ride" with these techniques. anyone that wanted to make it look more "scale could replace the craft sticks with square dowels.

everything is there for making rollar coasters, to bridges. you can move this technique over to civil engineering studies as well!
good job!
YAAAAH!
augur45 says: Mar 27, 2011. 2:02 PM
May we see a photo of the cart?
fraers (author) in reply to augur45Mar 27, 2011. 2:22 PM
You can see the cart in Step 1
augur45 in reply to fraersMar 27, 2011. 4:00 PM
AHA! Didn't see the scroll button on the photo strip... Thanx...
White_Wolf says: Mar 27, 2011. 11:06 AM
I love it!
Are you going to work on making a complete ride?
:0)
fraers (author) in reply to White_WolfMar 27, 2011. 2:21 PM
Thanks. We are not going to work on making a complete ride.
sebergast says: Mar 27, 2011. 12:40 PM
hej op welke school is dat?
janw says: Mar 27, 2011. 10:42 AM
Ziet er leuk uit! Mooi project!

Dream Dragon says: Mar 25, 2011. 1:06 PM
What an Amazing project, I've been wondering about something like this for a while, though I'd thought of using "coffee stirring sticks" I think the principles are about the same.

I'm not sure if the Video link is working right, I can't see it at all in the "English version" I had to go to the Dutch version to see the video.

Incidentally, you have no need to appologise for your English, it seems fine to me, and a HELL of a lot better than my Flemish.
fraers (author) in reply to Dream DragonMar 27, 2011. 8:05 AM

BTW in Holland we speak Dutch, not Flemish (that's Belgium)

Dream Dragon in reply to fraersMar 27, 2011. 8:21 AM
LOL, well I guess that would explain something.
rbbiggs says: Mar 27, 2011. 7:47 AM
I don't see the video either
zack247 says: Mar 25, 2011. 6:26 PM
very nice!
in theory you could do this and make a full roller coaster, and then use one of those mini rc cars to (possiby) drive the cart!

projects like these are so cool, its one of those ones you could build on a bigger scale, but its just so sweet small scale. 5*s.
alexsolex says: Mar 23, 2011. 1:08 PM
your video looks private.... I can't access it.
fraers (author) in reply to alexsolexMar 23, 2011. 1:17 PM
I've changed it to hidden. hopefully you can access it now.
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