diy letterpress - adana3d
I would like to link the tradition of manual printing with the current technology.
The machine is made of concrete, nuts and bolts.
In addition, clich é was designed on a computer and printed using a modern 3D printer, hence its name.
After this link, you can find the extended version of this description in pdf: The original concept of adana3d is very simple: analyze Gutenberg press, scale it down and build it with wood.
My first thought was this original press, mainly because of its simple structure: you have a large press, operated by a lever, squeezing a large piece of paper on the matrix, used to connect with some kind of roller.
This design can be simply implemented with metal frame and bottle Press.
But from my point of view, it\'s not interesting because it relies on a lot of hydraulic presses produced and you can buy them online cheaply.
Not a big challenge, right?
This great idea came up after I visited the Printing Museum at Lodi, a lovely town just southWest from Milan
They have a series of impressive letterpress presses, flat machines and other very interesting presses.
I analyzed the compact flat version of the convex version and realized that it would be a good design to consider.
They are fairly small and lightweight and easy to operate and maintain.
In addition, some of them were used by Italian guerrillas during World War II to print-
The romantic charm of this story makes me irresistible.
For reference, I used the brilliant UK Adana 8x5, which is a letterhead for sale starting in my 50 s.
I wanted to link the tradition of ancient manual printing with modern technology, so I decided to use 3D printing.
So the name Adana3D.
I started drawing a lot of sketches on random paper trying to figure out the best configuration for all the elements.
Even if there are basically three
Matrix, Template, stamping mechanism-
It took me a lot of time for this step.
In the end, I decided to break this machine in three parts, one part will absorb the blow and become the shell of the matrix, the central part of the template and its mechanism and the third part, block that supports the agency.
Once all the ideas were written on paper, I started modeling in 3D.
The two blocks are modeled in Autodesk\'s 3DS Max and then processed in a special software called Pepakura Designer.
This is a very neat piece of code as it allows you to import.
Obj files and flatten them on one or more sheets.
By doing so, I was able to print out all the faces of the polygon and create some paper models to see if the proportions were normal and if the behavior of everything was in line with my expectations.
As usual, some details must be changed (i. e.
The slot through the second block is too shallow)
But it\'s no big deal.
Then I started doing some research on the material I was going to use.
As I said before, the original concept was to print each part with a 3D printer.
After a quick study, I understand that the whole project will be slightly higher than 1600 euros (About $3000)
I can\'t afford anything.
So I re-thought about it and focused on reducing the price of the final media.
I think Wood is a good, cheap alternative.
Unfortunately, I had to give up the idea a few days later: the big manufacturers couldn\'t cut such small wood, and for some reason the Carpenters thought I was crazy.
I was thinking about using epoxy for a while, but when I realized that the heating reaction that occurred when you mixed the chemicals might melt the mold, I decided to give the cement a shot.
This is the first time I have used this material, so I have done some research: concrete is made of Portland cement, aggregate (
Such as sand or gravel)and water.
It is the most commonly used building material in the world.
When water is added to Portland cement, silica is first combined quickly with water.
The process slows down if there is moisture, but never stops completely.
If the concrete is solidified in one day, the degree of hardness after one week will exceed 4 times, the degree of hardness within one month will exceed 6 times, and the degree of hardness after five years will exceed 8 times.
Before adding water, Portland cement is usually mixed with aggregates, usually sand and gravel, making concrete for walls, floors, pillars, roads or sidewalks.
Construction of ratio from 1:2:3 (
Cement: Sand: Gravel)
1: 2: 4 to 1: 3: 5.
When the cement is dehydrated, it will harden and fix the aggregate together, including any steel bars.
The concrete should be kept damp for several days (
Small items for up to a week)
Because most curing/hardening occurs at that time.
Fortunately, the concrete has a lot of compression strength, but the tensile strength is very small.
If your project needs a thin and long shape made of concrete, you should consider adding steel wire and mesh to reinforce the structure, especially in a span that is not supported. Even alkali-
Sometimes anti-fiberglass is added instead of steel bars to increase the tensile strength.
During the first 24 hours, most of the shrinkage cracks occur, which is why polypropylene fibers can be added to the original mixture.
The same is true for fiberglass.
They prevent these cracks from getting too big.
Concrete also has a disadvantage: because it is highly alkaline, it is easy to cause chemical burns to you.
Especially like me when you add water to Portland cement you decide to mix the mixture with bare hands as it looks like clay.
In fact, it also has a texture like clay.
Anyway, if you\'re stupid enough to beat this compound with a light hand, remember that it burns your skin.
Head up: the only way to counter the alkaline nature of concrete is to pour vinegar in the affected area (
Because of its acidity, it\'s like the perfect enemy of cement).
In any case, wear proper safety equipment to avoid contact with the skin.
Also, vinegar burns like hell. Trust me.
Using the template I printed before, I finally made some molds with foam plastic.
I chose this high density material because it provides a good, non-
The sticky surface of Portland cement is very affordable (
About 4 euros per square meter in my local hardware store)
It is easy to cut even with sharp knives.
Remember, almost all sharp equipment is dangerous.
Using it requires you to take risks on your own, please use your brain and some kind of protection.
Try not to dismember yourself.
After the mold was assembled with hot glue, the process of making two main brackets was very fast: I poured the concrete and fixed some bolts inside so that it was easy to fix the block on the base, and wait for the compound to solidify overnight.
Alas, I made a mistake and only used a little hot glue (
Mainly because I ran out in the middle of the second mold.
This leads to a beating mold.
I managed to correct this error, but the back block doesn\'t look as good as the front one.
Pro tip: mix as little water as possible with cement powder as the final mixture will shrink depending on the amount of water you pour.
I didn\'t have the perfect recipe and I went ahead and made some attempts and mistakes.
The last material should be thick and half.
Solid, similar to caramel consistency. Yum.
Next, I began to focus on the platform board.
Initially, I planned to connect it directly to the front through the metal pivot.
I analyze this situation better and I realize that this idea can cause some serious problems, mainly because when I use cement, the pivot has to be immersed in the block when pouring the compound, causes the pivot not to rotate. Pretty useless.
I simply put forward the idea of using some ball bearings to achieve mechanical rotation, but this small price is high
I left due to the size of the bearing and my lack of knowledge about welding.
After K, I decided something less gorgeous. I. S. S. principle (
It\'s not a band, the acronym means \"keep it simple, stupid \")
: Several black hinges of the local hardware store are completed.
For the flat part, I used L-for simplicity and ease-
Metal Profile in shape, cut to the appropriate length and Bolt fastening.
Unfortunately I don\'t have clips and drill press so everything needs to be done with Dremel, sandpaper and a lot of time.
In fact, when I first made this part, my calculation was terrible and the template was a few centimeters too short.
The second time I did it right and also managed to install the third hinge, which would help me connect this part to the hinged joint I planned for the next stage.
You\'re not the kind of joint.
In my schedule, next is the central junction and mechanism, which will make the letterhead a letterhead.
The frame consists of steel bars that are connected together by four bolts, steel bars that are used as steel bars and handles, several long screws and loose drill bits.
There is quite a bit of drilling, assembly, swearing, disassembly, cutting, sanding, reassembly.
Standard procedures, you know.
Again, please operate in a safe environment and try to reduce possible damage.
Do not cut metal near any outlet or power supply as it may explode.
Don\'t be like me.
Finally, I have to worry about the matrix.
I want to print one of my poems-if they can even be called poems-so the selection process is very simple.
Unfortunately, since the matrix is only 9x11 cm, I can\'t squeeze a lot of text at all.
So I turned to the quote from Graham Green, \"heretical is just another word for freedom of thought \".
Quick tip: like Adobe Illustrator, write/draw/do whatever you want on vector software, then mirror the expanded letters vertically and export the files. svg (
Scalable Vector Graphics, is a non-
Proprietary formats that can be imported in any 3D application).
Import in 3DS Max, or in almost all other 3D applications.
Svg and squeeze out the profile on the vertical axis.
I recommend the extrusion of 2/3mm because the larger extrusion does not affect the matrix.
You know, you have to save money and time on a 3D printer.
Use a 3D printer. stl files (
Short for stereo photography)
, So export the file in this format.
Don\'t worry about textures and materials as they are not supported in this format.
Can Finally print!
For the printing process and preparation work, I went to the people of Fablab in Milan next door to my university. How convenient.
There, I learned that to print in 3D, you really should flip the normal in your. stl file.
That geek is very good!
Once it\'s all done, it\'s time to print something in the old way.
After the 3D printing is finished, it\'s time to glue the matrix to the bracket, apply some ink on it with a rubber scraper, press the lever and have a good time!
Thank you very much for any feedback!
Feel free to contact me for anything.