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Deze Instructable is in het Engels.
Voor de Nederlandse versie, klik hier http://tinyurl.com/63ls2fh
This Instructable is in English.
For the Dutch instructables please click here: http://tinyurl.com/63ls2fh
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.
Voor de Nederlandse versie, klik hier http://tinyurl.com/63ls2fh
This Instructable is in English.
For the Dutch instructables please click here: http://tinyurl.com/63ls2fh
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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Signing UpStep 1Supplies
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 clamps
• 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)
• 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 clamps
• 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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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!
- 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.
Force = mass times Acceleration
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)
Thanks!!
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!!
This is an Excellible... thanks so much for sharing it.
Kevin
*chuckle*
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!
Are you going to work on making a complete ride?
:0)
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.
BTW in Holland we speak Dutch, not Flemish (that's Belgium)
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.