How to Cut Perfect Circles in Cardboard with a Knife (No Special Tools)

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  • เผยแพร่เมื่อ 5 ก.พ. 2025

ความคิดเห็น • 80

  • @MakerBrain
    @MakerBrain  3 ปีที่แล้ว +5

    QUESTION OF THE DAY:
    💡❓ Do you care about how clean your cardboard cuts look?❓💡
    - I read and reply to every comment so I would love to see your answer here in the comments!
    ⬇⏰⏰VIDEO CHAPTERS⏰⏰⬇
    0:00 - What you are going to learn
    0:15 - The best knives to cut circles in cardboard
    0:30 - How to draw a perfect circle on cardboard
    2:11 - How to CUT circles with a knife in cardboard
    4:10 - What to do with a bigger knife when cutting circles out of cardboard

    • @vsen7
      @vsen7 3 ปีที่แล้ว +2

      Yes I do care about clean cardboard cuts.

    • @MakerBrain
      @MakerBrain  3 ปีที่แล้ว

      Me too. But sometimes I am lazy and will just cut in whatever way is the easiest.

    • @jrawby6215
      @jrawby6215 2 ปีที่แล้ว +1

      If I didn't, I wouldn't be here I guess

    • @MakerBrain
      @MakerBrain  2 ปีที่แล้ว

      I guess not. I hope your cardboard projects are going well!
      - Eli

    • @Legendary_Editz_21
      @Legendary_Editz_21 ปีที่แล้ว +1

      Yess bro

  • @daltsav
    @daltsav 10 หลายเดือนก่อน +1

    I do the top laying cutting alot and learned it makes a cleaner cut to score the cardboard first. Love your videos. 🤗

    • @MakerBrain
      @MakerBrain  10 หลายเดือนก่อน +1

      I am honored that you love my videos. And am glad that you have some good tricks up your sleeve for crafting cardboard. (-:
      Happy crafting,
      - Eli

  • @hannahsmith7693
    @hannahsmith7693 3 ปีที่แล้ว +12

    Thank you I have been making a lot of cardboard crafts for my hamster instead of wood because prices are up and I’m cheap so this was infinitely helpful to making all my doorways not look like crap XD

    • @MakerBrain
      @MakerBrain  3 ปีที่แล้ว +1

      I am so glad that I was able to help you and your hamster, Hannah. Cardboard is a great way to do things on the cheap!
      God bless you,
      - Eli Tennant

  • @aliasnick4602
    @aliasnick4602 3 ปีที่แล้ว +2

    This is great. Circles are tough and frustrating. I think I'll get a hobby knife now. I'm making a large cardboard advent calendar for my daughter. The doors will be round, and the pockets containing the treats will be made from toilet paper tubes. I'm excited and glad I found some confidence for all the round cuts.

    • @MakerBrain
      @MakerBrain  3 ปีที่แล้ว +1

      I am glad that I was able to help you, Alias:Nick!
      Circles can be a big challenge and having a hobby knife can be quite helpful for the tedious cuts. Here is a link to the ones that I use (they come with extra blades and a small ruler as well): amz.run/52pN
      If you are going to be cutting a tone of circles, I suggest looking into getting or building a circle cutting jig. I have never used one, but I think it could make it easier to cut a lot of the same size circles.
      Good luck with your daughter's advent calendar!
      - Eli Tennant

  • @candicetan293
    @candicetan293 หลายเดือนก่อน

    what is the best cutter, knife or anything that can easily cut ticker cardboard with beautiful edge, im consider buying a rotary cutter. what do u think?

  • @vsen7
    @vsen7 3 ปีที่แล้ว +2

    I want to make embellishments out of cardboard and these tips are really helpful.
    And you've a great voice.

    • @MakerBrain
      @MakerBrain  3 ปีที่แล้ว

      Thank you, V Sen.
      I am glad to be able to help you make cardboard embellishments!
      Happy crafting!
      - Eli Tennant

  • @scootermom1791
    @scootermom1791 2 ปีที่แล้ว +10

    You can also lightly sand the edges of the cardboard to remove the burr. I've used a nail file (instead of a piece of sandpaper) to have more control over sanding the edges like this.

    • @MakerBrain
      @MakerBrain  2 ปีที่แล้ว +3

      Ahh, that is a good idea💡! I am going to work on some ways to harden cardboard and I think that sanding will also be a big part of that.
      Stay inspired,
      - Eli B Tennant

  • @lovemusic4evs
    @lovemusic4evs ปีที่แล้ว +1

    So I'm using two 10 inch circles to make a base for centerpieces. I messed with a couple so far to make them look nice by lining the corrugated edges with vinyl but on the edges of the circle where the corrugated lines are parallel with the cut the vinyl doesn't look nice because there is gaps. I'm running out of time but considering filling with a paper paste, hot glue, Elmer's glue. I wonder if you have solved this problem before.

    • @MakerBrain
      @MakerBrain  ปีที่แล้ว

      That sounds like an interesting project. If you are talking about hiding the edges of your corrugated cardboard, then you might find some answers in this video: th-cam.com/video/BGl_vJQBijs/w-d-xo.html
      (It explains it better than I can in this comment)
      I hope this helps,
      - Eli

  • @eric_diascp2
    @eric_diascp2 ปีที่แล้ว +1

    this guy know how to cut a perfect circle

    • @MakerBrain
      @MakerBrain  ปีที่แล้ว

      Thank you, Eric.

    • @eric_diascp2
      @eric_diascp2 ปีที่แล้ว +1

      its a meme btw , but cool video helped me out
      @@MakerBrain

    • @MakerBrain
      @MakerBrain  ปีที่แล้ว

      Oh, 😄
      I suppose I need to stay more on top of my memes😅

  • @ritam72
    @ritam72 8 วันที่ผ่านมา

    What if I need a circle with a 22 inch diameter?

  • @zkdr6278
    @zkdr6278 ปีที่แล้ว +1

    Thanks. I'm using these tips to cut a gasket for my lawnmower lol.

    • @MakerBrain
      @MakerBrain  ปีที่แล้ว

      Wow, I hope it works out for you! Is it a cardboard gasket? Either way, cutting your own gasket is awesome 👍
      - Eli

    • @zkdr6278
      @zkdr6278 ปีที่แล้ว

      @@MakerBrain Thanks! I was going to use a cardboard one but I think I might go get some gasket sheets since the lawnmower gaskets are made out of some kind of foam/rubber material

    • @MakerBrain
      @MakerBrain  ปีที่แล้ว +1

      @@zkdr6278 I don't know much about lawn mowers, but getting real gasket sheets sounds like a good idea if you wanted to last a long time. But maybe you could try the cardboard one just to see if it works.
      Good luck with this project!
      - Eli

  • @RomanianDuck
    @RomanianDuck 6 หลายเดือนก่อน

    I wanna do a map of romania with its states . What should i buy? A cutter , precision knife or a canary knife?

  • @deadshot1435
    @deadshot1435 3 หลายเดือนก่อน

    Love your excitement bro keep it up ❤️

  • @shesheperson8558
    @shesheperson8558 9 หลายเดือนก่อน +2

    You are a godsend thank you so much!

    • @MakerBrain
      @MakerBrain  9 หลายเดือนก่อน

      I am honored that I helped you!
      - Eli

  • @MsMelissaAnn
    @MsMelissaAnn ปีที่แล้ว +1

    Thank you. This is helpful

    • @MakerBrain
      @MakerBrain  ปีที่แล้ว

      I am so glad I was able to help you, Melissa!
      Have a blessed day,
      - Eli

  • @Japan401
    @Japan401 9 หลายเดือนก่อน +1

    I'm gonna use these as pokemon damage counters, thanks a lot!

    • @MakerBrain
      @MakerBrain  9 หลายเดือนก่อน

      I am glad to help!

  • @mariskaaryan6925
    @mariskaaryan6925 2 ปีที่แล้ว +1

    I repurpose items for my artwork. I like using cardboard but how do I get a flat seam

    • @MakerBrain
      @MakerBrain  2 ปีที่แล้ว +1

      It is cool to hear that you are using cardboard in your art! I think I have a video that might answer your question. You can check that out here: th-cam.com/video/BGl_vJQBijs/w-d-xo.html
      If you still have questions, feel free to comment!

  • @dollworld3256
    @dollworld3256 ปีที่แล้ว +1

    Very helpful

    • @MakerBrain
      @MakerBrain  ปีที่แล้ว

      Thank you. I am so glad to be able to help you with your crafting endeavors!
      - Eli

  • @JackRoyal82
    @JackRoyal82 7 หลายเดือนก่อน

    you could use hole punch for better precision

    • @CSGraves
      @CSGraves 6 หลายเดือนก่อน

      If you can get one in the right diameter... most folks are more likely to have an Xacto knife or similar in their home.

  • @patbird9694
    @patbird9694 10 หลายเดือนก่อน +2

    I didn’t know that cardboard had reflective property to shine like your after photo in the thumbnail

    • @MakerBrain
      @MakerBrain  10 หลายเดือนก่อน

      Haha... You are very observant. With a little bit of Photoshop anything can happen. (-:
      Have a blessed day,
      - Eli

  • @padmaizekor6947
    @padmaizekor6947 ปีที่แล้ว +1

    Thank you so much

    • @MakerBrain
      @MakerBrain  ปีที่แล้ว

      Padma, I'm so glad to be able to help you with your cardboard projects!
      Happy crafting,
      - Eli

  • @AlexBooster
    @AlexBooster 3 ปีที่แล้ว +3

    Masking tape or painter's tape on the back might prevent or reduce the bur.

    • @MakerBrain
      @MakerBrain  3 ปีที่แล้ว

      Thanks for commenting, Alex! I know the video was blurry at times, but I don't really understand what you are trying to say. I would love to understand you, so could you rephrase or clarify your statement for me? Thanks.
      - Eli Tennant

    • @hknisley2000
      @hknisley2000 3 ปีที่แล้ว +1

      You talked about how this method leaves a burr on the back side of the cardboard. Perhaps if you put tape on the back side before you cut, you would get a cleaner cut on the backside.

    • @MakerBrain
      @MakerBrain  3 ปีที่แล้ว +1

      Thanks for the comment, Heather.
      Tape might help with the burr, but I have never actually tried it so I can't be sure. Perhaps I will make a video on it in the future.
      Best regards,
      - Eli Tennant

  • @def_liam
    @def_liam 16 วันที่ผ่านมา

    thank you bro now i can make the slide of the glock

  • @amenogt969
    @amenogt969 3 ปีที่แล้ว +1

    How can we make cardboard solid as stone.
    Dont giveup

    • @MakerBrain
      @MakerBrain  3 ปีที่แล้ว +2

      Thanks for commenting, AMENO GT!
      I have never tried to make cardboard harder/stronger than it naturally is but I know that some people soak it with solutions of wood glue and water (they might just paint or spray it on) and that makes the cardboard a lot stronger. I know that there are some other videos on TH-cam about this.
      This is an interesting topic and I will think about making a video on it at some point.
      Best regards,
      - Eli Tennant

    • @amenogt969
      @amenogt969 3 ปีที่แล้ว +1

      @@MakerBrain Thanks

    • @MakerBrain
      @MakerBrain  3 ปีที่แล้ว

      My pleasure, I love helping you in your crafting pursuits!

    • @SuperMario-wk6et
      @SuperMario-wk6et 2 ปีที่แล้ว +2

      Use super glue

    • @MakerBrain
      @MakerBrain  2 ปีที่แล้ว

      That is a good idea 💡.

  • @SADIASPDOUCTION
    @SADIASPDOUCTION 2 ปีที่แล้ว +1

    How to cut a cardboard hexagonal

    • @MakerBrain
      @MakerBrain  2 ปีที่แล้ว

      Hi there,
      First I would draw or trace a perfect hexagon onto the cardboard. You could make a paper template (here is a video on how to make a hexagon out of paper: th-cam.com/video/TqfimwQt1lU/w-d-xo.html) or simply draw it out (here is a video on how to do that: th-cam.com/video/50DF2ioy5gI/w-d-xo.html) - then you could use your first cardboard hexagon as a template if you wanted to make more hexagons.
      once you have that done, I would recommend using a sharp knife to cut straight along each edge. You will make the cut extend past the corners of the hexagon to ensure that it overlaps cleanly with the other straight cuts that you make. After making those 6 straight cuts you can pop out your hexagon!
      Hope this helps,
      - Eli Tennant

  • @red2965
    @red2965 2 ปีที่แล้ว

    I want quarter size holes and I want them inside not how to pop out rounds

    • @MakerBrain
      @MakerBrain  2 ปีที่แล้ว

      Hi red2965!
      I don't totally understand your question, but the internal holes is almost the same as cutting circles. You will just need to be cairful not to accidentally cut into the cardboard that you want to keep.
      - Eli Tennant

    • @red2965
      @red2965 2 ปีที่แล้ว +1

      @@MakerBrain trying to make a board for quarters so I can organize them yes I could buy one already cut but I want to do one for the 2009 State quarters I could I suppose cut all the way through them just paste a thin paper layer on one side so I could keep them veiwable and one spot I guess I'll have to machine a tool to make the holes because I don't want to spend forever and a day doing it.

    • @MakerBrain
      @MakerBrain  2 ปีที่แล้ว

      That sounds like a great project idea. I have never really been into coins and don't know much about them but I wish you good luck creating this sorter and hike cutting tool.
      Best regards,
      - Eli Tennant

  • @fredbarnes196
    @fredbarnes196 21 วันที่ผ่านมา

    Perfect circle in what world?

  • @NOOBFF278
    @NOOBFF278 ปีที่แล้ว +1

    ‌iam🇮🇳

    • @MakerBrain
      @MakerBrain  ปีที่แล้ว

      Thanks for commenting! It's always amazing to see the different countries that people watch from.
      Have a blessed day,
      - Eli

  • @Євгенія547
    @Євгенія547 หลายเดือนก่อน +1

    But is there ANOTHER way to cut the cardboard? You all saying this huck is genius, so I'm wondering did you cut just with your teeth and nails before?
    The video is literally like: "draw the circle first and then cut it slowly". You wasn't know you can do it before??

    • @MakerBrain
      @MakerBrain  หลายเดือนก่อน

      Your summary of my video is perfectly accurate. I just know that I have cut out a lot of bad circles before and this is the best strategy I have found to make them look great. Despite its simplicity, it seems to be helping people.
      You should check out my video on how to break down a cardboard box. It is even simpler.
      Blessings,
      - Eli

  • @63artemisia63
    @63artemisia63 2 ปีที่แล้ว +1

    ROLL of tape instead of “role”.

    • @MakerBrain
      @MakerBrain  2 ปีที่แล้ว

      Haha, thanks for pointing that out, Lynn Duvall. 😅

    • @63artemisia63
      @63artemisia63 2 ปีที่แล้ว

      @@MakerBrain Sure, small mistake in a very well done video 👏🏽👏👏🏼

    • @MakerBrain
      @MakerBrain  2 ปีที่แล้ว

      Thank you! 😊

  • @thomasmagee2266
    @thomasmagee2266 11 หลายเดือนก่อน +4

    Maybe try less of the unnecessary Ali G hand gestures.

    • @MakerBrain
      @MakerBrain  11 หลายเดือนก่อน

      Thank you for the advice. I will see if I can improve in my next video

    • @nevermoreHOAR
      @nevermoreHOAR 4 หลายเดือนก่อน +4

      Kinda unnecessary comment. He’s just showing excitement and personality in the video. I didn’t even notice it until you pointed it out.

  • @AkshayDafda2010
    @AkshayDafda2010 3 ปีที่แล้ว

    I don't care about clean cardboard

    • @MakerBrain
      @MakerBrain  3 ปีที่แล้ว

      Sometimes I feel the same way, Akshay. Sometimes it is better just to cut fast and get something over with than obsess about making it clean.