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Water bottle flip robot for school #7257287
05/04/21 08:34 AM
05/04/21 08:34 AM
Joined: Jan 2021
Posts: 746
Westvirginia
Ethan1234 Offline OP
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Ethan1234  Offline OP
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Im in tenth grade and i have to build a water bottle flip robot whats the best way to do this and is there any physicists on here?


"You reap what you sow"
Im 15 and still the best trapper in glenwhite
Re: Water bottle flip robot for school [Re: Ethan1234] #7257288
05/04/21 08:35 AM
05/04/21 08:35 AM
Joined: Jan 2021
Posts: 746
Westvirginia
Ethan1234 Offline OP
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Ethan1234  Offline OP
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I was thinking of using cervo motors and for the twisting part any help would be nice and thank you.


"You reap what you sow"
Im 15 and still the best trapper in glenwhite
Re: Water bottle flip robot for school [Re: Ethan1234] #7257383
05/04/21 11:46 AM
05/04/21 11:46 AM
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Posts: 699
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coyotesoldier229 Offline
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Disclaimer- I am not a physicist.

Ethan, you need an order of operation, essentially, what specifically do you want this robot to do. Will this just flip a bottle and return to the starting point, or will it have other mobile ability. Once you’ve figured out exactly what you want your robot to do, then you can decide how you want to operate you robot. That’s when you’ll have to decide what your power source will be and what equipment will work the best for your mode of operation. The use of servos which are nice in terms of setting specific positions, speed and repeatability.

There will be many ways to skin this cat, cost and your own mechanical and programming ability will determine your path moving forward. Apply the KISS technique.

Automation of equipment is the way most operations are headed.

Best of luck, hope you learn a lot

Re: Water bottle flip robot for school [Re: Ethan1234] #7257390
05/04/21 11:55 AM
05/04/21 11:55 AM
Joined: Jan 2021
Posts: 746
Westvirginia
Ethan1234 Offline OP
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Ethan1234  Offline OP
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I want it to just flip a bottle and i cant program i was wanting to design an motorized arm thats adjustible height and force i just want to see what it takes ro make a good bottle flip.


"You reap what you sow"
Im 15 and still the best trapper in glenwhite
Re: Water bottle flip robot for school [Re: Ethan1234] #7257391
05/04/21 11:58 AM
05/04/21 11:58 AM
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Posts: 20
West Virginia
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DugK Offline
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You could go pneumatic. You can control pressure and flow.

Re: Water bottle flip robot for school [Re: Ethan1234] #7257401
05/04/21 12:17 PM
05/04/21 12:17 PM
Joined: Jan 2021
Posts: 746
Westvirginia
Ethan1234 Offline OP
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Ethan1234  Offline OP
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How would i use pneumatic


"You reap what you sow"
Im 15 and still the best trapper in glenwhite
Re: Water bottle flip robot for school [Re: Ethan1234] #7257411
05/04/21 12:36 PM
05/04/21 12:36 PM
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East-Central Wisconsin
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Weatherby270 Offline
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Ethan,

It sounds like you want to make an arm that mimics the motion that a human arm goes through when flipping a bottle. I'd suggest looking for a simpler way - the way we do things is often (from a mechanical perspective) very complicated.

Consider this: Have you ever used these little leapfrog toys?
[Linked Image]
They jump in the air and do a flip when you press down on the tap and let it go.

I would try to come up with something like that, and set the water bottle on top. The servo motor idea is good, but using servo motors to make an arm would require some programming. If you could use the leapfrog idea, you could use a little servo motor to "wind up" the flip.

Teachers are often trying to see how you approach a problem and if you think outside of the box. Demonstrating some level of analysis and creativity in that regard could help you too, if this is something that's being graded.

Just my two cents (its probably not even worth that much). grin Good luck!

Re: Water bottle flip robot for school [Re: Ethan1234] #7257428
05/04/21 01:11 PM
05/04/21 01:11 PM
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Posts: 20
West Virginia
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DugK Offline
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Originally Posted by Ethan1234
How would i use pneumatic

See picture, adjust fulcrum and position of load for a flip
[Linked Image]

Re: Water bottle flip robot for school [Re: Ethan1234] #7257435
05/04/21 01:19 PM
05/04/21 01:19 PM
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Green County Wisconsin
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GREENCOUNTYPETE Offline
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it depends what you need to do

if taking a bottle and merely turning it over and setting it back down again a bottle flip a clamp , lift rotate release could be done

a pneumatic cylinder like this https://www.toolots.com/si40x100.ht...45CFndKa19XjKXLi3lQ_SiM3bz8aAjAJEALw_wcB could be used to propel the bottle adjusting air pressure and actuator time can control the action your going to need an air source, pneumatics because they build pressure over a period of time the motion starts a little slower but then has good power

what do you get for components from the school or is this a purchase your own components project?


America only has one issue, we have a Responsibility crisis and everything else stems from it.
Re: Water bottle flip robot for school [Re: Ethan1234] #7257458
05/04/21 01:48 PM
05/04/21 01:48 PM
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Southern NJ
maintenanceguy Offline
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Post the project requirements here. Easier for us to help if we know the parameters. I love projects like this.


-Ryan
Re: Water bottle flip robot for school [Re: Ethan1234] #7257792
05/04/21 09:24 PM
05/04/21 09:24 PM
Joined: Jan 2021
Posts: 746
Westvirginia
Ethan1234 Offline OP
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Ethan1234  Offline OP
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It needs to have a moving leg that can hold on to a bottle and release it when it gets to a specific angle so that way the bottle will be at the right height from the table so that when the mass spreads out the bottle will have enough time to slow down and land


"You reap what you sow"
Im 15 and still the best trapper in glenwhite
Re: Water bottle flip robot for school [Re: Ethan1234] #7257796
05/04/21 09:27 PM
05/04/21 09:27 PM
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Posts: 746
Westvirginia
Ethan1234 Offline OP
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Ethan1234  Offline OP
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[Linked Image]


"You reap what you sow"
Im 15 and still the best trapper in glenwhite
Re: Water bottle flip robot for school [Re: Ethan1234] #7257875
05/04/21 10:27 PM
05/04/21 10:27 PM
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Southern NJ
maintenanceguy Offline
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So, you need translational motion to get it started on it's arching trajectory toward the table and rotational motion so it does the right number of flips.

I think a piece of PVC pipe for the bottle to slide through works as that arm.

[Linked Image]

The spring pulls down one end causing the arm to rotate - that's the rotational motion. As the arm moves, centripetal force causes the bottle to slide through the arm and out into the air (translational motion). Notice the fixed pin. That pokes through a hole in the arm and keeps the bottle in place until the motion starts. Once the arm starts to move, it slips away from the fixed pin and the bottle is free to slide.

It's simple and I like simple solutions. To make the bottle actually land on the bottom you'll have to adjust the spring tension, angle of start, and pin location until it works - if it ever works.

One advantage of this design is that the translational motion will be fairly fast and the rotation slow. If it's a high enough arc, it will be coming down almost vertically with very little rotation. Maybe, just maybe, it will actually stick the landing coming in that way.

Sorry my drawing is sideways. I can build stuff but taking pictures with a phone is hard.

Last edited by maintenanceguy; 05/04/21 10:28 PM.

-Ryan
Re: Water bottle flip robot for school [Re: Ethan1234] #7257881
05/04/21 10:41 PM
05/04/21 10:41 PM
Joined: Jan 2021
Posts: 746
Westvirginia
Ethan1234 Offline OP
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I also have to figure out how much force i apply and the angle its released and the angle it starts to spin at basically i have to make a robot or mechanism to help me figure out what it takes to make a almost perfect bottle flip and how much mass is in the bottle its difficult i know that


"You reap what you sow"
Im 15 and still the best trapper in glenwhite
Re: Water bottle flip robot for school [Re: Ethan1234] #7257884
05/04/21 10:48 PM
05/04/21 10:48 PM
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Posts: 2,642
N. Carolina
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Scout1 Online content
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Sounds like a costly project. Servo's are not cheap. Like mentioned before I would look into a mechanical way to complete this project. Think of the old catapults used in mid-evil war? Maybe one of the grabber/tongs with rubber cups on the end old people carry around picking up trash? Think outside the box!


-------------------------------------
America First!!
Re: Water bottle flip robot for school [Re: Ethan1234] #7257885
05/04/21 10:48 PM
05/04/21 10:48 PM
Joined: Jan 2021
Posts: 746
Westvirginia
Ethan1234 Offline OP
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I know the drawings crappy but i was thinking of a motorized arm with angled hooks to give the twisting motion of the wrist and the arm would have a stop bar so it could come to a complete stop as humans arms would not sure if it would but its prob gonna be close if the ramps/ hooks work right . [Linked Image]


"You reap what you sow"
Im 15 and still the best trapper in glenwhite
Re: Water bottle flip robot for school [Re: Ethan1234] #7257886
05/04/21 10:50 PM
05/04/21 10:50 PM
Joined: Jan 2021
Posts: 746
Westvirginia
Ethan1234 Offline OP
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I will cause i dont have very much to spend but maybe the tongs would be a good idea if i can get them to hold the bottle


"You reap what you sow"
Im 15 and still the best trapper in glenwhite
Re: Water bottle flip robot for school [Re: Ethan1234] #7257915
05/04/21 11:40 PM
05/04/21 11:40 PM
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Northern Wisconsin
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NorthenTrapper Offline
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If you need the mass of a water bottle the average bottle is 16.9 oz and 1 1l2 lbs according to google, so there's 453.592 grams in a pound, so a average water bottle would have a mass of 680.388 grams. If you need to get rid of some water, so it balances out to land say around down to the label you would put a cup on a scale that measures grams (You can get them from Walmart cheep) and hit the level out button then pour the water in the cup and take the weight and subtract 680.388 grams, and you have the mass of the water bottle adjusted to getting a balanced flight path and landing.


“We will visit the Holy Land and see those places hallowed by the footsteps of the Savior,”
-Lincoln
Re: Water bottle flip robot for school [Re: Ethan1234] #7257941
05/05/21 12:34 AM
05/05/21 12:34 AM
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What about modifying a a clay pigeon thrower?


-------------------------------------
America First!!
Re: Water bottle flip robot for school [Re: Scout1] #7258028
05/05/21 07:13 AM
05/05/21 07:13 AM
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Posts: 746
Westvirginia
Ethan1234 Offline OP
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Originally Posted by Scout1
What about modifying a a clay pigeon thrower?

I have to do it in school plus i couldnt kill my teachers


"You reap what you sow"
Im 15 and still the best trapper in glenwhite
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