Create A Perfect Octagon Everytime!
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- Опубліковано 5 лип 2024
- Never again have to use "trial and error" to draw an octagon! This easy method, using a ruler (or a framing square if you have one!) and a compass, is fast and accurate! All you need is the width of the octagon and the rest comes together flawlessly. You'll look like a genius!
#octagon #octagoncalculation #drawanoctagon
If you know the side to side dimension (width) of the octagon you want, you can draw it quickly and accurately using only a pen, ruler, and compass. If you have a framing square, that makes it even faster and easier.
You'll begin by drawing a square that is the same width and height as the width of the octagon you need. From there, you'll use a compass to mark off points. Watch DirtFarmer Jay as he shows you how.
You can scale the size up and down for other octagons you need, using a large-sized compass (available at an art store or Harbor Freight) and a yardstick.
If you need to make an octagon-shaped length of stock (such as a small column or turning blank to mount on your lathe), check out this "no-math" method for your table saw:
• EZ Method to Cut Octag...
In yet another episode, we also show you the .414 ratio to calculate the side lengths of the octagon. For you "Octagon Geeks", we also provide you a link to a great online calculator for all the parts of an octagon. That way, if you have a couple dimensions of the part of your octagon, you can calculate the other parts. Cool!
Check that out at (COMING SOON!)
Thanks for your support! Check out our blogs and resources at DirtFarmerJay.com. Buy our GREAT MERCH (T-shirts, caps, coffee mugs, gift cards) at www.dirtfarmerjay.com/shop - Навчання та стиль
You never seem to amaze me, DirtFarmerJay. I have recently gotten into woodworking, and am making birdhouses. Your video using a single cedar picket and WITHOUT measuring was great! I have made two dozen of these following your instructive video, and I think I can make them in my sleep. I mastered hexagons with a circle, a center and a length of string! I was wondering about making octagon birdhouses, but when I took geometry, King Tut was riding around in his chariot (I am in my mid-80's). Your explanation was so straightforward and uncomplicated, I immediately went to my garage/workshop and made a flock of octagons in different sizes! Bless you, Jay.
Glad to be of help. I'm glad it worked out so well for you. Best, DFJ
Very easy, very straightforward. Thanks brother.
You answered my question by making the square to dictate the size of the octagon.I want to make a 42” size octagon for a garden trellis and I was wondering what size to cut each section,but you solve that for me,draw the square first and measure the points for the sections.Thank you.👍
So helpful for my upcoming deer mount pedestal - Thank you!!
Thank you very much .big help for my project 🙏
Thank you Sir. It's simple and works
Thank you. Great Tip!
Well done and thank you
Thank you, very helpful :)
Thank you so much. It helps me out.
Thanks. I had to draw a 5' octagon on the sidewalk outside, and couldn't have figured it out without you !.
Glad I could help!
Thank you. I will use your tip. I love it.
Fast and easy. So much easier to understand than the other "scientific" videos.
That's dope ... Tnx a lot!!
Great tip, thumbs up
You made it so easy, my “fishbowl” on my quilt will be perfect!
Thanks! U make it easy, fast! 😊
You're welcome!
to the point and spot on, many thanks "H"
Used your method today. I'm a carpenter and always looking for the simpler way. Nice job!
Glad it was helpful! Keep watcihng and commenting Odd Job Fix Restoration. Best, DFJ
Awesome tip, fast, easy, excellent. Thank you
You're welcome, Lindsey! Best, DFJ
Thanks DirtFarmer Jay!!😄
Glad I could help Tom McCormick! Best to you! DFJ
Thank you for the video on how to layout and Octagon. This is so simple for laying out wood planters. Thanks again and have a great day.
Glad it was helpful! Best, DFJ
You always have easy practical tips
Aw garsh! Thanks for watching!
Good demarcation keep the videos coming
so helpful. thank you
You're welcome!
If you don't have a compass, just use the measurement from center to corner and mark from the corners.
Nice video 😎
very good, it is in my arsenal if handy things to know now...give us more sir 🤙🏿
Very good - and you can count on more like this coming your way. Thanks for the kind comment! Best, DFJ
It was amazing ❤❤
Well done professor. The best on UA-cam!
Aw garsh, Malinda! Best Regards, DFJ
I need to see how to do this the earth for a foundation, I suppose one could apply this to the earth by rebar pins etc.
Some things are easy when they're explained well. Thanks.
Happy to help.
But ya, that did help! TY!
Brilliant, thank you
You're very welcome! Keep watching and commenting Liz Hibbard! Best to you, DFJ
Thanks for sharing this simple method, really helpful! Greetings from Hungary
You're very welcome, Janos! Thanks for watching and taking time to write. It's always fun for us to hear from friends from other countries. Greetings back to you and to yours - DFJ
Million thanks for the great video Sir..
You are so welcome!! Keep watching and commenting. Best, DFJ
Thank you very much 💐💐
You are VERY WELCOME!! Best, DFJ
Thank you Sir. Im making a ring out of brass and needed to plot my lines.
Hi there Jacob just have seen your reply back to octo farmer top man as you can see he helped me for something else I was working on meany thanks to he,but if you need any help at all i am a gold Smith by trade but now do meany more others things aswell so if you you need help on anything get back to me all the best,banks'e spain
Thanks from the UK 🇬🇧 😀
You are very welcome Stuart Thompson. Thanks for watching and commenting. Best. DFJ
Thanks
Thank you sir
You are most welcome. Best, DFJ
Nice This Video
- This method is ABSOLUTELY the best ! ! ! I'm not a math whiz yet was able to easily make the Octagon that was made into a serving board, clock, coasters, etc. Thanx 4 sharing.
Thanks, lady kenja, for your kind comments. I'm glad you found it to be that useful to you! Best, DFJ
Could have done with watching this before I murdered a cake board today lol. Trying this with a new one tomorrow! Thank you.
Let me know how this turns out for you! Best, DFJ
This absolutely helped me! I’m making my grandchildren an octagon picnic table!
Cindy, let us know how it turned out, and send us a picture at jay@dirtfarmerjay.com. We'd love to see what you created. Best, DFJ
@@DirtFarmerJay I sure will! Thank you!
Such a simple method! Thank you so much. I’m making a wood lighthouse and I need to make the top deck today.
Have fun! My email address is jay@dirtfarmerjay.com. Send me some pictures when you complete the project. Thanks for watching and writing. Best, DFJ
DirtFarmerJay I absolutely will!
I sent over a pic for you! Thanks again bud
love you
Thank you, good video
luningning Ginez, thanks for watching and commenting. Glad to help. DFJ
I thought I needed a stencil to make an octagon, but turns out I didn't. Thank you for the lesson
Hey Wild Man Wyatt, thanks for watching and writing. Best, DFJ
Oh my God!! I used to agonize over trying to make an octagon because I always just divided each side into thirds and went from there.😔 this makes it so much easier!! THANKS!!
You are so welcome! Glad we could help. Best, DFJ
Muchas gracias me sirvió de mucho para mi proyecto
Cosme Jaimes, Nos alegramos de que te haya resultado útil. ¡Gracias por mirar y escribir! Saludos, DFJ
Very helpful there grandpa!
Why THANK YOU (I think....) Yep, I am a Grandpa of 17 grandkids. Keep watching and commenting Jose Paolo!
17 kids!?!?!!?!?!?!?!!?!?!
Great job. This is a great and simple tip for finding the points for an Hexagon / Six sides, which is what you showed, but were calling it an octagon = 8 sides.
Do you have on e for a true octagon / 8 Sides?
Thanks for watching Ron Landa. If you watch the video again (and you can see it in the thumbnail photo too) that there are 4 sides on the square and 4 sides on the angle, therefore an octagon. Best, DFJ
Easy!
Trying to make a board game and was worried about this step till now
How did it turn out, Henry?
Cool
Thank you, that was helpful. I’m going to be building a Wing chun dummy out of wood so I need to make an octagon first before I can sand the trunk
Here for the same reason lmao
milesIronwood93 cool man!
milesIronwood93 Are you making your Wooden dummy out of solid wood or boards glued together?
Wow! Me too! Lmao
Jill Beaudoin good luck to you on your project.
Jay, I've had same Lufkin 36" rule in the shop for some 35 years!
I like it, Mike! Thanks for watching and writing! Best, DFJ
Let me apologize for not seeing it in the beginning. I am the first to step forward and admit when I am wrong. I went back and watched it again. You are correct.
Please accept me apologies. Great job as I said before.
All good, Ron Landa. Thanks for watching our video and taking time to write! Best Regards, DFJ
Thank you for saving me hours worth of doing it the long, hard and wrong way! Your awesome!!!
Such an easy way to draw a perfect octagon. I hope I can have it work on graph paper where I can just count the number of squares to use. Thank You So Much for sharing this method with us. Hope you also have a video about drawing a perfect pentagon on graph paper.
Glad it was helpful! Best to you Curtrice Ennis. DFJ
@@DirtFarmerJay And, all the best to you, too, DFJ.
Thanks for your video my friend working on something good and needed this info 👍 when I make a million i will send you a nice present,from banks'e in London UK all the best 👍
Thanks Nicky Banks for watching and commenting. Glad we could be of help to you. My wife and I both travelled to the UK many times during our corporate career to visit stores for our printing company called AlphaGraphics. It's beautiful there and we enjoyed every minute. Best to you! DFJ
@@DirtFarmerJay will be in touch soon with some good news for you,thanks for getting back to me all the best 👍
@@DirtFarmerJay im from London but have lived in spain for the last 21years
In math and in teaching, stick your numbers, remember it and use it correctly. I was confused by 7 and 3/8 vs 7 and 3/16. When you doing a tutorial, it’s important
He did say 7 3/8 at the beginning and then changed to 7 3/16?
Exactly what I needed to create a tent footprint layout! Thank you! p.s. almost got motion sickness from the ADHD videography🤔
Thanks for stopping by! Best, DFJ
How do you cut miter for luver of a octagon gable vent? Thanks
Each end of the 8 pieces would be 22.5 degrees. Best, DFJ
I make them on my miter saw real quick in 5 mns
How do I measure for a 12 sided piece?
Take a look at this video - I think you'll find it to be helpful:
ua-cam.com/video/ahtDAvGKpeg/v-deo.html
my compass doesn't open far enough. I need a 17.25" square
If you don't have a compass, just use the measurement from center to corner and mark from the corners.
I guess I'm old school using a protractor and 135 degree corners.
Yep, that's a great method. Thanks for weighing in. Best, DFJ
Are all sides equal?
Matt, indeed. All the same width, with all the same angle relation to each other. Best regards, DFJ
❤
Glad to be of help. Best, DFJ
This just helped me out big time... for a whiskey barrel table top. Thanks
Lectric Wheels, Thanks for watching and commenting. I'd love to see how your table top comes out. Best to you! DFJ
@@DirtFarmerJay turned out perfect. If i could send you a pic i would mate !
could you give us a written formula to make an octagon, please?
Anna, good to hear from you. I'm not sure exactly what you mean, but let me take a stab at it. Assuming you know the diameter ( the distance from side to side, not point to point), then take this distance and multiply it by 0.414. That will give you the length of each of the 8 segments.
Let's do an example. If you want an octagon that is 12" from side to side, then multiply 12 by 0.414. This results in 4.97". Converting this to fractions, that is just right at 4 & 31/32".
Is this helpful? BTW, we'd like to invite you to check out www.dirtfarmerjay.com/store as well as other resources on our site.
Thanks! Best, DFJ
@@DirtFarmerJay thank you so much... that helped my brain grasp it easier... and I will definitely go onto your site... thank you...
Poifectomondo
Now show how to lay that out with batter boards and string lines on a real concrete job.
Bradford, I'd have to noodle on that one. Being able to do so would sure come in handy with doing a gazebo or other outside structures. Thanks for the prod! Best, DFJ
It takes more work but he already gave you the Basics. Use dry lines and 3,4,5 method to square. Use your staring points for guide. I do this all the time for the petrochemical refineries
If you know the length of your sides, just measure them out with 135 degree angles. Not really all that hard.
What don’t I understand? I followed your instructions exactly and what o hit was not an octagon!!!
You said 73/8 “
Indeed, I started with 7-3/8" and incorrectly recalled the original amount as 7-3/16". I ended up creating an octagon that was 7-3/16" side to side, but the principle is the same and allows you to create octagons of any width. You choose. Best, DFJ
I don't understand how you drew the square the way you did. The first two lines were square, but the marks you made for the last two were measured with the straight ruler, and you eyeballed the ruler as being square. Please help clarity your method. The rest of the tutorial was great.
This is a great quick method for constructing an irregular octagon.
However, with this method, all 8 sides will not be equal in length; the 4 'angled lines' will always be longer than the 4 'straight lines' that are part of the initial square.
It's still an interesting octagon, just technically not a 'regular' one.
It is an equilateral octagon.