Hi, I'm a bit confused. Are you only supposed to tie the string around the extension bar? Or are you supposed to tie it around the back near the big wheels or the front? Can you show us a more detailed way to add the string please.
Tie it to the end of the extension are. The other end will be wrapped around the back axle kind of like a yoyo 🪀 except that the string lets go when it reaches the end. The hammer will pull the extension arm - which will pull the string - which will make the back axle spin. When the string lets go, momentum continues to carry the vehicle along.
@@MrK_Engineering Ok so I should stick the bar and the golden part of the mousetrap together and tie the string at the end of the bar and and wrap it around the back of the axle where you put your big wheels. And when I release it will propel the car forward?
@@shielsingh9602 It should. Remember that the spring is not really a strong tool. You don’t want friction between the wheels and straw. If there is ANY hot glue touching the metal axles, it will cause too much friction for the vehicle to move. Neatness matters on the build. 😅
iTech x Flickz I wanted to eliminate some of the student angst when designing, and streamline the time management of the students for build time. They all modified these instruments for their purposes.
@@WavySarai it goes about 45 feet. But it also depends on the length of the arm. i am assuming that you are done with this project, as you posted a month ago. i hope you were successful!
Everyone here is either watching this because they need this for a school project or- .... I’m pretty sure that’s it but they appreciate you making this! :)
thanks dued for the video you made. it will help me out what I'm doing in computer engineering hope the first attempt works out the way I wanted :) your way building a mouse trap car is way easier then the other videos I watched so far. finding video ideas on how to fully build a ("mouse trap car").....
I use a metal hanger from my closet. I use a pare if pliers and cut it to the size I want. I can also use the pliers make sure it is straight (if you want it to be straight - you might ‘want’ a bend it it...). Remember that the arm is easy to replace if it does not do what you want to to....
You are right. I did not. If I had to make it again, I might include that part. You are wrapping it like you would wind a yo-yo 🪀- just don’t tie it in a knot. You want the string to come free at the end so momentum will carry the vehicle further.
I get them from pitsco.com. The wheels are “X-White wheels”. www.pitsco.com/Shop/Dragsters/Materials-and-Supplies/Wheels/X-White-Wheels The axles are “2.5 inch steel axles”. www.pitsco.com/Shop/Dragsters/CO2-Powered/Steel-Axles You can use other things like wheels from discarded toys, and metal hangers cut to the right size for axles. Hope this helps,
Stephanie Boakye so, basically, the only real thing you need is any wheel, and any axle. I have used old toys, and removed the wheels and used wooden dowels as the axles. The key to remember is that the axle needs a straw to go around it so you can reduce friction. Good luck.
Aubeena bear That is the challenge, you might need to do some experimentation to see which arm works better. They are fairly easy to add and remove. I wish you luck in reaching your distance goal. I know the 10 m is not an insurmountable distance, And have had students of mine go much further than that. The key factors are friction and alignment.
If the mousetrap is further away from the back axle, it will be a longer, slower pull. The string will be longer, so it will wrap more times around the back axle. If the mousetrap is closer to the back axle, it will be a shorter, faster pull. The string will be shorter, and wrap fewer times around the back axle. Hope this helps!
There is a metal rod which is the “axle” for the wheel and axle assembly. And there is a metal rod which is the “arm” attached to the hammer of the mousetrap. Hope that is what you were asking. I can’t think of another metal piece on the vehicle...
Anguelica Aguilar The metal bars are made from coat hangers. I used a wire cutter (pliers) to cut the correct length. On the video they are measured in inches. You should make it the length you want it to be. The longer the arm, the longer the pull - the shorter the arm, the faster the pull. Hope this helps!
thanks for the tutorial but my mousetrap is on the back of my racer and this a science assigment of mine... how do i make it go, and how do i tue the string and where do i tie it?
Doctor H and kids so, my first question is “is the tail of the mousetrap pointing towards the back?” If it is, “can you see (touch) the back axle from the top?” If yes to both, tie the string to the hammer, and (not tied) wrapped around the back axle. Hope this helps. If you need more advice, write back.
@@MrK_Engineering im not even sure if mine has a tail, but the thing that flips is facing the front im pretty sure, i dont really know the names of the parts on mousetrap racers. i have limited time to build the rest of my mouse trap racer as it is in class (half an hour) and im a bit behind as my group doesnt know how to tie the string and if we build our mousetrap racer right
Doctor H and kids if the snappy thing (the hammer) is facing the front when it is at rest, then you are ok. Tie the string to the flat part of the hammer (the snappy thing). The string will need to be about 6 inches long. Glue it so it does not move around. You will have to hold it back (pressure on the spring) while you wrap the string around the back wheels & axle. Once it is tangled onto the back axle, it should roll forward when you let go.
The string is the thing that makes the vehicle actually move. The string (wrapped around the back axle) pulls on the axle, causing it to roll when the spring pulls on the string. So, you must have something to attach the mousetrap hammer which pulls on the back axle... good luck!
Lauren Rodriguez I bought them from Pitsco.com. But you can use wheels and axles from old toys. The axles should be about 1/8” in diameter. You can also use cardboard and hot glue to attach the CD’s to the axles. Hope this helps.
Great question. Think about how fast a short stick would swing compared to a long stick. The longer stick will pull slow and longer, giving a longer pull on the string. The shorter string will pull faster but shorter. Will the faster car coast further? Will the slower car go further under power? The experiment is up to you, the arms are easily changed. Try some different lengths and see which one performs better. Good luck!
Hi, I'm a bit confused. Are you only supposed to tie the string around the extension bar? Or are you supposed to tie it around the back near the big wheels or the front? Can you show us a more detailed way to add the string please.
Tie it to the end of the extension are. The other end will be wrapped around the back axle kind of like a yoyo 🪀 except that the string lets go when it reaches the end. The hammer will pull the extension arm - which will pull the string - which will make the back axle spin. When the string lets go, momentum continues to carry the vehicle along.
@@MrK_Engineering Ok so I should stick the bar and the golden part of the mousetrap together and tie the string at the end of the bar and and wrap it around the back of the axle where you put your big wheels. And when I release it will propel the car forward?
@@shielsingh9602 It should. Remember that the spring is not really a strong tool. You don’t want friction between the wheels and straw. If there is ANY hot glue touching the metal axles, it will cause too much friction for the vehicle to move. Neatness matters on the build. 😅
The only reason I clicked this because this a school project
iTech x Flickz I wanted to eliminate some of the student angst when designing, and streamline the time management of the students for build time. They all modified these instruments for their purposes.
Same
sameeee !
How far did it go? My car has to go at least 10 meters
@@WavySarai it goes about 45 feet. But it also depends on the length of the arm. i am assuming that you are done with this project, as you posted a month ago. i hope you were successful!
Everyone here is either watching this because they need this for a school project or-
....
I’m pretty sure that’s it but they appreciate you making this! :)
Yep, I know. 👍
And I also hope you do well on your project!
Good tutorial, very easy to follow, good job
500TH LIKER HERE
thanks dued for the video you made. it will help me out what I'm doing in computer engineering hope the first attempt works out the way I wanted :) your way building a mouse trap car is way easier then the other videos I watched so far. finding video ideas on how to fully build a ("mouse trap car").....
Sergio Reynoso I hope it works for you as well! Please you let me know how it goes! Good luck!
Where would I find the metal arm at a store/are there any replacements I could use?
I use a metal hanger from my closet. I use a pare if pliers and cut it to the size I want. I can also use the pliers make sure it is straight (if you want it to be straight - you might ‘want’ a bend it it...).
Remember that the arm is easy to replace if it does not do what you want to to....
Thank you. Using this for class.
Love it! That is why I made it.
I like the tutorial but you left out how to properly wound the string around the back axle.
You are right. I did not. If I had to make it again, I might include that part. You are wrapping it like you would wind a yo-yo 🪀- just don’t tie it in a knot. You want the string to come free at the end so momentum will carry the vehicle further.
I think it's creative using popsicle sticks instead of pieces of wood for the base.
This is gonna be me and my partners 3rd attempt in making a car. fingers crossed 🤞🏾
IrregularAurora good luck!!!
What is the name for of the wheels and axles you used because I can’t find them.
I get them from pitsco.com.
The wheels are “X-White wheels”. www.pitsco.com/Shop/Dragsters/Materials-and-Supplies/Wheels/X-White-Wheels
The axles are “2.5 inch steel axles”.
www.pitsco.com/Shop/Dragsters/CO2-Powered/Steel-Axles
You can use other things like wheels from discarded toys, and metal hangers cut to the right size for axles.
Hope this helps,
What can you use to replace the wheel and axle or where do you find the axle
Stephanie Boakye so, basically, the only real thing you need is any wheel, and any axle. I have used old toys, and removed the wheels and used wooden dowels as the axles. The key to remember is that the axle needs a straw to go around it so you can reduce friction. Good luck.
Meason Kolkhorst thank you so much
Thank you !!!
If it need to go 20m how long does it have to be
Good question. Longer is better. It will go slow, but the string will pull longer and make the axle spin for a longer time.
oh yeah yeah
oh no no
Which arm length did you use for your car. Which one would would best for traveling 10 meters at most?
Aubeena bear That is the challenge, you might need to do some experimentation to see which arm works better. They are fairly easy to add and remove. I wish you luck in reaching your distance goal. I know the 10 m is not an insurmountable distance, And have had students of mine go much further than that. The key factors are friction and alignment.
Does the mouse trap have to be on the side or in the middle
If the mousetrap is further away from the back axle, it will be a longer, slower pull. The string will be longer, so it will wrap more times around the back axle. If the mousetrap is closer to the back axle, it will be a shorter, faster pull. The string will be shorter, and wrap fewer times around the back axle. Hope this helps!
Meason Kolkhorst thank you!
What are the metal rods, is there a certain name?
There is a metal rod which is the “axle” for the wheel and axle assembly. And there is a metal rod which is the “arm” attached to the hammer of the mousetrap. Hope that is what you were asking. I can’t think of another metal piece on the vehicle...
@@MrK_Engineering I meant where would u get that/what is the metal rod called, and did u have to cut it
Mauro Smith it was purchased at the vendor “pitsco” and it is a 2.5”x1/8” metal axle. Purchased in groups of 100. No need to cut.
When it shows arm length what is it measuerd by
Anguelica Aguilar The metal bars are made from coat hangers. I used a wire cutter (pliers) to cut the correct length. On the video they are measured in inches. You should make it the length you want it to be. The longer the arm, the longer the pull - the shorter the arm, the faster the pull.
Hope this helps!
Where do u buy the wire
prativa I usually get it from hobby lobby. 24 gauge usually works fine.
thanks for the tutorial but my mousetrap is on the back of my racer and this a science assigment of mine... how do i make it go, and how do i tue the string and where do i tie it?
Doctor H and kids so, my first question is “is the tail of the mousetrap pointing towards the back?” If it is, “can you see (touch) the back axle from the top?”
If yes to both, tie the string to the hammer, and (not tied) wrapped around the back axle.
Hope this helps. If you need more advice, write back.
@@MrK_Engineering im not even sure if mine has a tail, but the thing that flips is facing the front im pretty sure, i dont really know the names of the parts on mousetrap racers. i have limited time to build the rest of my mouse trap racer as it is in class (half an hour) and im a bit behind as my group doesnt know how to tie the string and if we build our mousetrap racer right
Doctor H and kids if the snappy thing (the hammer) is facing the front when it is at rest, then you are ok. Tie the string to the flat part of the hammer (the snappy thing). The string will need to be about 6 inches long. Glue it so it does not move around.
You will have to hold it back (pressure on the spring) while you wrap the string around the back wheels & axle. Once it is tangled onto the back axle, it should roll forward when you let go.
Doctor H and kids if you want it to go further, you are going to have to break the mousetrap off and move it to the front of the vehicle.
@@MrK_Engineering thank you so much
It should be fine without the string right?
The string is the thing that makes the vehicle actually move. The string (wrapped around the back axle) pulls on the axle, causing it to roll when the spring pulls on the string. So, you must have something to attach the mousetrap hammer which pulls on the back axle... good luck!
He talks to slow, but good video
Where did you get the wheels and axles?
Lauren Rodriguez I bought them from Pitsco.com. But you can use wheels and axles from old toys. The axles should be about 1/8” in diameter. You can also use cardboard and hot glue to attach the CD’s to the axles. Hope this helps.
Hecc 8th grade science
i know right xp
How far can this mousetrap car go?
It went down the hallway outside my classroom. About 40 ft. Measured by counting the tiles in the hallway. Some of my students did better than mine.
@@MrK_Engineering Thank you!
How long should I choose for my arm?
Great question. Think about how fast a short stick would swing compared to a long stick. The longer stick will pull slow and longer, giving a longer pull on the string. The shorter string will pull faster but shorter.
Will the faster car coast further?
Will the slower car go further under power?
The experiment is up to you, the arms are easily changed. Try some different lengths and see which one performs better.
Good luck!