How to make a pantograph (enlarge an image)

[@natoe26]

This project was a lot of fun! Thank you for the history and the ratio calculations.

[@schatzieme2]

Finally I have found someone that knows how to make a large pantograph! This is just what I was looking for. Thank you!!!

[@AlleyPicked]

Glad it was helpful!

[@jeffwhite1979]

Came here looking for panting dogs next to graphs, and walked away knowing how to make my own pantograph.....AWESOME!!! Thanks

[@dm9860]

I needed to refresh my memory on this from many years ago... I'm enlarging the new handicap symbol from computer screen size to 48inch size onto 4x8 sheet of plywood to cut out a stencil... Websites show new symbol but offer no engineering spec's to reproduce on to plywood... In high school we used over head projector, old school, but pantograph is even older school.. Nice video, thank you for bringing back fun and technical memories.

[@harryh352]

I just built this from your video It works great. Thank you for sharing it.

[@AlleyPicked]

Great to hear!

[@newmoderndimensionsllc8931]

WOW! AM EXTREMELY IMPRESSED ON HOW YOU MAKE THIS PROJECT LOOK EXTREMELY SIMPLE AND EASY TO BUILD. THANK YOU SO MUCH. GOD BLESS YOU GREATLY.

[@AlleyPicked]

Thanks! Appreciate the feedback.

[@pteddie6965]

How did I miss this last year when you posted it? I love this. I have two daughters who teach little ones. I've got to make one for each of them. Thanks for posting this, Tom.

[@AlleyPicked]

Sounds good. Thanks.

[@healthreviewsplus]

Thank you for explaining this!👍

[@lindaesquibel9307]

Luv your Personality!!! You go Dude!!

[@rajeswararaoganugula417]

Excellent, thanks for explaining ratio measurements.

[@alladar47.1]

I've been looking for a way to make one of those but was a little short on knowledge. Thank you !!

[@TommyBlanton]

Good tutorial. Only thing I did differently was add washers between each piece to reduce friction.

[@briceabella1586]

Thank you so much for sharing your knowledge 🙏❤️🌹

[@texasfossilguy]

This is so cheap and genius... thanks for the tip!

[@fshs1949]

❤❤❤. Well explained. God bless.

[@mikebrunette1089]

The child in the beginning absolutely sold me on this video

[@AlleyPicked]

That's my grandson. He has some other great cameo appearances 👍

[@yvonneleung265]

So amazing 😻

[@PlacidoDeCervo]

A question that no one has yet answered: What length should the arms have in relation to the final size of the sheet? Example: I have a drawing on an A4 sheet (20x30 cm) and I want to transfer it with a 1:2 ratio onto a 40x60 cm sheet, what maximum length should the arms have to allow this excursion? Is there a formula to determine it?

[@bombjack78]

Thanks for showing the how to maths!

[@joseynoyb9467]

Fantastic video thank you so much!

[@julianaphang6534]

May I know which will enlarge images easily & more accurately, a pantograph or proportional dividers?

[@arcadebuilder533]

Simplified-divide the length of the longer side of the big triangle by the amount you want to amplify your drawing, and that is the long side of the small triangle...

[@Hugoasrin]

Wonderful and usefull knowlege you share here, thank you so much!! I need to enlarge a figure to 115 cm tall and 68cm wide. Could you tell me how long should the longer arms be for my 3.55:1 😲pantograff?? Thank you and congratulations!! (already suscribed!!👍)

[@amarissimus29]

You started by trying to draw a 45°-45° right triangle. Instead of eyeballing the other leg and getting the incorrect hypotenuse length, all that is needed is to multiply 15 by √2. The correct hypotenuse is 21.2132, not 21.375. Of course √(15^2 + 15^2) will give you the same answer. One thing you don't want to do with a pantograph is to eyeball it.

[@skb875]

Great video! I wish I had you as my math teacher.

[@denisestover2416]

Hi! Thank you for sharing your knowledge. I'm trying to figure out the best way to create a larger image from a smaller image without spending so much time sketching...so I can spend more time painting, lol. Thank you, again, for your help! God Bless 🙂

[@AlleyPicked]

Hope it helps you out.

[@NoName-rt8pg]

I'm trying to copy a photo (10" wide) to be traced onto 4 feet long piece of wood. In your video you have yard sticks as the longest length. If my drawing is going to be 4feet, then do I need the lengths at least or than 4 feet?

[@AlleyPicked]

I don't think so. You should be able to do it in sections.

[@Myke-ju5lg]

It's 2024.Imperial measurements ? Come on, America.😂😂😂

[@wadeadams2775]

Fantastic vidio!! I want to scale up ww2 acft and build from dollar store foam. You even did the 5:1 . exactly what i needed!! Thank you!

[@jubato5861]

good video. greetings from Puebla, Mexico. I will try to make one.

[@AlleyPicked]

Thanks! Greetings from cold and snowy Chicago.

[@jubato5861]

@@AlleyPicked It is true. I saw it in the news. lots of snow. I have family in Pennsylvania and he sent me a video of a lot of snow. Greetings.

[@brianburgess5909]

On the 3 to 1 pantograph, you said 4 point 8 inches. What is point 8 inches? Why are you combining metric with SAE measurements?

[@AlleyPicked]

I am not using metric but rather decimal and fractions. Because of the measurements that I was using, the fraction came out to 29/6. 29 divided by 6 is 4.8 inches. That is not metric. For example, if it were 4.5 you would know that is 4 1/2". You would need to convert .8 to a fraction which is approximately 4 13/16 I know it's confusing but that's math :-)

[@gamevibehostshowasertretin8274]

Ip in by measuring ip in in or cm

[@naplesdinglebot3991]

is there such a thing as a 1 to 1 pantograph?

[@TheToyHoarder]

Yes, you can use a pantograph to replicate, enlarge, or shrink an image.

[@RedDead-rl9nf]

Hey how would you measure to make one that is a 1:1 ratio

[@AlleyPicked]

I have not done it but I believe the anchor point would be in the centre, and you would trace with one end, and draw with the other.

[@hmax1591]

that pantograph is called a copy machine.

[@TheToyHoarder]

@@AlleyPicked Yes. I should note too, that the image you create (recreate I suppose) will be upside-down, but this is how you set it up to replicate a drawing in 1:1 scale.

[@gamevibehostshowasertretin8274]

How do you make pantograph to down seize images

[@hmax1591]

did you not see the video? go to 4:15 to 4:26 and see again, repeat if still not clear.

[@roquebarrera9745]

Me gusta el vídeo puede explicarme en idioma español

[@zahrahamdy1580]

Please write sizes of parts

[@AlleyPicked]

The size of the parts depends on the size of the drawings you want to make. You can make a spall pantograph or a large pantograph. The important part is the ratio.

[@exoticricket]

You lost me on the math fractions part dawg

[@fiercekrypton]

Switch to metric and profit.

[@AsterFoz]

Why are you making simple things so complicated? 14 1/2=14,5, so 14,5:3=4,83. No need to spend time on fractions.

[@jacquibossier9808]

Your nurdisms are coming out again. And as for your free give away for a camera, I don't even use the camera on my phone let alone anything else.

[@AlleyPicked]

LOL - I'll take that as a compliment.

[@jacquibossier9808]

@@AlleyPicked you would you silly goose 😋