In this video, I’m going to show you how to fold an origami Fir Tree designed by Francesco Guarnieri This is the finished model I folded it from 5 sheets of paper and the size of this tree is about 10 cm, that’s 4 in and the diameter — that’s this distance — is also about 10 cm or 4 in. For this I used 5 sheets of paper and that’s 2 sheets that have a side length of 15 cm by 15 cm, or 6 in by 6 in Then it’s one sheet that has a side length of 12 cm by 12 cm or 4 3/4 in Then there’s one sheet with a side length of 9.5 cm by 9.5 cm or 3 3/4 in And the smallest one with a side length of 7.5 cm by 7.5 cm or 3 in by 3 in Now Francesco actually advised you to use a bit larger paper but I didn’t have as large paper So he advised you to use a 30 cm square for the trunk and the largest layer and then 24 cm, 19 cm, and 15 cm or in inches, that’d be 12 in, 12 in, 9.5 in, 7.5 in, and 6 in So I’ll first show you how to fold one of these layers So you can take this model apart and then you have to use all your green sheets to fold these identical modules and after that I’ll show you how to fold the trunk and how to put everything together. So let’s get started. Now, each of these modules is actually not folded from a square, but from a regular octagon. So let’s start by cutting a regular octagon from this square. We’re going to fold in half and crease Unfold Rotate And again fold in half This method is good because we’re actually creating creases that we will need for the model itself And unfold Then also crease the diagonals And unfold Rotate, and the other diagonal And unfold Now flip the paper over and we’re going to take one corner and bring it over so it lies right around there And then we’re going to align this crease with that diagonal crease over here and this crease with the diagonal over there And crease Unfold and then bring this corner again, to the top aligning this crease with that diagonal one and this crease with that diagonal one And crease Then rotate by 90 degrees and do the same thing again Bring the corner up And align the creases to get exactly the right angle Unfold, and one last time Now we only need to cut off all of these 4 corners I’m going to use a cutting mat and knife So what you can do also instead is you could take a ruler and then ensure that — you can see the creases right here and here — you draw a line between those 2 points Like this And then cut it off with scissors. And do that with all 4 corners But I’ll just go ahead and use my cutting knife If you use a cutting knife, of course always be careful and best use a steel ruler because then you won’t damage the ruler with the very sharp edge of that cutting knife Be sure to cut precisely here so that you get a nice octagon Then you can discard these 4 corners we don’t need them and we can continue folding So now we have a bunch of creases on this model already and the good thing is, the direction is correct and all of the creases are needed in the model. So let’s continue with adding the next creases First, we’re going to form another smaller octagon in the center by bringing these straight edges to align with these long straight creases that halve each of these sides So bring them up there and then you only need to crease in the center right between these creases that go to the points of that octagon So you create a crease like this Now repeat 7 more times Once you’ve got that completed you have a smaller octagon in the center Now flip the model over And now we’re going to make another octagon which goes through these points that are in the center of the sides of the octagon we just created So for this, I’m going to capture one of these points and then align this tip with that crease to get a straight edge And then crease just between these 2 points So first I capture the point Then I swivel to get that corner to align with the crease and then I crease just between those 2 points And that then gives me that small crease here that goes between those 2 middle points of 2 sides of the octagon And repeat 7 times So now we have a smaller octagon that is right inside that slightly larger octagon Now let’s flip the model over and we’re going to fold the model in half along an existing crease And then take this point and fold the corner in so that a crease starts right in this point of the 2nd largest octagon — the one we creased first — and so that this corner here lies on this crease that goes right through the point of an octagon. And crease like this And then we’re going to take this small corner and this small edge and fold it over to that edge And then unfold And repeat that again 7 times Once we’ve done that Turn the model over and now we only need to create a couple more creases So the ones we created just now are these long triangles and then these quite short triangles Next we’re going to create angle bisectors on these points here So that we’ll have a crease running right along here So we’re going to bring this edge over to that crease And then we only need to crease up to where it meets that crease we just created Right up until here And unfold Now repeat on all of these corners so that you will always have a V-shape on each of these corners. Now all our pre-creasing is done and we can start collapsing the model To make this a bit easier, let’s first ensure that all the main creases we did in the beginning have the right direction And for that, we’re going to start with a corner and another corner and ensure that’s a mountain fold And repeat that with all the other ones too Like this And then we want to have valley folds right next to those So we’re collapsing it just like well, I guess, a bit like a waterbomb base And then you can just ensure that these are all nice and strong creases by going along all the necessary edges on this side, that side, and in the center Now we’re going to open up the model slightly again and now we’re going to make crimps by using these small triangles that were created by the 2 octagons that fit into each other So most of the creases is going to stay a mountain fold just the small section will be a valley fold We’re basically going to achieve that by holding the model like this and then just pushing here Right just a bit inwards of that crease So you just push it so that the crease goes in and it has the right direction And then you want to push this together And I’m going to push from the back right on this crease So here in the back, I’m going to push here And from the other side you’ll see that then this pops together, like that And then you can fully collapse it And now, again we have to do this on each side You’ll also notice that these points sink inside like they’re going inwards and that’s quite important or else it won’t really work out — you’ll have trouble in the end. So just ensure that it looks right like this So again we have this crease we pinch it a bit, then we push on the crease and then from the back we push the crimp together And then here you can see this corner is standing up and really we need it to go down so just push it inside and that might happen once in a while And then go on to the next one Just going to push that a bit like this and the next one and the next one Just going around Fortunately, all the creases are in the right place and the important ones have the right direction so that it shouldn’t be too hard to collapse this And then it’s fully collapsed And you have a shape like this See from the back and from the top and from the side Now we need to form out these smaller sections kind of give the branches So for this we’re going to look at one of these sections here, and you can see we have these creases And we’re basically going to do an inside reverse fold up along the crease like this, and then one down, along the other creases we have And because all this is pre-creased it happens quite naturally when you just push the paper together and touch it in some places. Now make sure to leave these loose because the model does need that space to move, else these crimps are going to open up That happens; just refold them. And that was the last one. Now we’re going to flip the model over and we basically want this shape on the top to stay, so that the crimps stay in place Sometimes this can be a bit difficult So what I’m going to do is, I’m going to take a small clip And I’m going to push this together so that 4 of these small flaps are on each side and then fasten it. You might want to do this too with a clip like this with a normal paper clip, whatever I think it’s going to make it a bit easier for you So now, from the other side it looks like this and we just have to create a couple of small creases by folding in quite naturally some creases we prepared So you can see these shapes here, these strangely-shaped structures that kind of look like a triangle but pushed in a bit And we’re going to push them together completely And then we’ll see a crease right along here and there and we’re simply going to fold those in and push. And we’re creating small creases here that don’t exist yet but you can’t really notice that much because it goes so naturally And then you go on to the next one And the next one. Always first fold together that triangle and then fold in those corners along existing creases With all the pre-creasing we did in the beginning, collapsing is now easy and also very precise. And in the end I think by pre-creasing the whole thing not only looks nicer in the end but is easier to fold and faster to fold, surprisingly After a while, you will notice that the model gets a bit tighter, because by creating these structures here you’re locking the paper so you’ll have a bit more paper tension And if you don’t fasten the model here then that paper tension may mean that the crimps open up again because the paper tries to make itself more space But with it fastened you can see it works really nicely So now we can undo this again and balance out the model so that it looks quite symmetrical Now all that’s left to do is to ensure that these branches look nice and soft by pushing from the back and also to the inside It might be that, especially if you’re using small paper your hands or your fingers are a bit too big for this and then you can for example use a chopstick or a pen or if you’re doing something very small, a toothpick something like that. But at this size you can easily still do this with your fingers at least if you have a hand of my size So now, one of these is done and you need to do 4 of them So the other 3 I’m just taking from the model I showed you in the beginning and then it will look like this Now let’s fold that stump Just like before, we need an octagon And this time, just for the purpose of having the creases in a specific direction, we’re going to start with the color side up Now once we’ve got the octagon and all these creases, we’re going to add some more creases. We’re going to add a halfway point here on each of the sides and then another crease between those two. So we’re going to take this corner and bring it to that halfway point and then crease only until we reach this crease here. That’s going to make collapsing a bit easier. Just up until you reach the crease And then, you repeat that for each of the sides, so in total you’re going to do that 16 times. So now it looks like this and we’re going to flip the model over and now you can see we have these sides we have a crease here we have a crease here and then here And we’re going to add a crease between those For this, I’m going to fold the model in half like this and then take this edge and bring it over to that edge And then crease. And again, you don’t need to crease all the way but just until you see a diagonal. There’s just one diagonal you can take for orientation And again, repeat that all the way around in total, 16 times So once you’ve completed that we can flip the model over and you see then that on each of the sections you have these long valley folds then a slightly smaller A-shape with mountain folds and then again valley folds. And you have that for each of these corners of the octagon We’re going to collapse along those I find it easiest to start with that mountain fold in the center of those 2 valley folds. So I first fold that mountain fold in And then the valley fold may actually pop up automatically And then you fold along those valley folds to get the next point visible, again with the mountain fold And that tip here is going to be a mountain fold And then you just go around collapsing all the work that you did before Sometimes you may really need to squeeze those creases in so that you get nice precision You’re not creating any new creases You do have to change the direction of some of the creases mainly those that go up to that point which will be mountain, then a bit valley and then mountain again. So there’s a small section of the crease that you have to change the direction. And then maybe even out the model a bit Don’t hold it too tightly because you can’t completely collapse it to make it completely flat At least, not if you’re holding it like in this 3D fashion as I am right now And then once you’ve got that you can really completely lay flat Maybe go and make all the creases nice and strong And then your stump is done Much simpler than the branches Now let’s go on and put this together So just like before you can see you have 8 flaps and they’re going to go inside these branches and Ilike to open it a bit like this and then just ensure that in each of these small sections right here you have one of these flaps. So you can insert one then go on to the next one and the next one and the next one and just check how it works out. It might naturally fall into place just like you want it to and sometimes it may be a bit it may need to be forced into exactly the right spot And once you have that you can check again This one has 2 in here that’s bad So we’re going to move all of these one space to this side because here right here you can see there is one flap missing in one of those shapes And only if you do it symmetrically will the tree be symmetrical and hold together more nicely. I’ve probably never had as big of a trouble inserting it as this time around probably because I’m really trying to show it in detail which sometimes means it gets a bit messy These are all ok and this one’s ok This one’s kind of not liking me right now There we go So now you can see There’s one inserted, there’s one inserted there’s one there’s one there’s one there all the way round And then you can really push it all the way to the bottom And then you start with the next one This time around this structure is much more stable so it’s going to be easier to insert into this next layer just because it’s just one of the modules that needs to be stuck in the right way And that’s the next one added Be sure not to push it in too far especially when inserting, because it gets harder And then we have the next one, open that up And again, ensure that on each of these sections, can you see this, each of these sections one small flap is inserted, and if it’s not then you just fix it. And there must be one more that’s wrong that’s this one And then it’s again inserted And the last one And there we go Now you can push it together and do lots of layers, more than 4 or if you’re staying with these 4 layers I’d actually recommend you don’t push these layers together all that much I’ll separate them again a bit And then we have your Fir Tree designed by Francesco Guarnieri all done. I think it’s a beautiful model Perhaps it’s something nice to give away for Christmas. Happy folding!