1. Speed, affordability and access
While 3D printers have become significantly cheaper in the last few years, right now you can buy a good cheap one for a little less than $300, but only a decade ago, they were over $100,000. While 3D printers have gotten much cheaper, they have low printing speed and you still need to also buy a 3D scanner, and all the raw materials you need for printing. While plastics are most commonly used for printing, certain kinds of 3D printing may use steel, stainless steel, titanium, gold, and silver. Some more unusual 3D printing projects can even utilize bio-ink, bone material, hot glue, or glass. Each of these different kinds of mediums would usually require that you buy a separate 3D printer, unless you are working with a more advanced printer that can actually combine multiple materials.
2. Smaller learning curve
While it’s gotten much easier to make prototypes for digital ideas, like apps and websites, 3D printing is still a much more complicated and confusing process. In order to print a 3D render of something, you must first develop a 3D model using a mathematical representation of the three-dimensional surface of an object, which can be created using computer-aided design (CAD) tools. Unlike regular printing, with 3D printing, you always have to think about fragility. Everything in your model has to have volume, so that it’s sturdy enough to not break. While some technologies could theoretically allow you to print something as thin as 0.016mm, anything that thin would instantly break as soon as you touched it.
After you’ve created this file, you can either print it yourself if you have your own 3D printer, or find an online service that you can outsource it to. Either way, you still have to check to ensure that your model is a “solid mesh,” where all the edges of the polygons are connected to each other, using manifold geometry. If 3D printing is to be used by the general public, it needs to be much easier to create and properly use 3D files.
3. File compatibility
Software designers have countless programs to choose from, depending on how technical they are or not. No matter what software you use for digital design, files can always easily be converted in and out of PDF and vector format. For 3D printing, there are more than 5 different file types you could be working with. There’s still a long way to go before the 3D rendering software is unified enough to easily convert one file type to another, without losing valuable information that is required for stable 3D printing. In order for 3D printing to become more accessible, there needs to be software that makes these files much easier to create and export.
4. Cheap (or even free) ways to learn
If you want to learn how to use your computer better or gain proficiency with a specific software, there are endless tutorials on the internet. Since many companies and small businesses use their blogs and YouTube channel as a means of advertisement and lead generation, there is no shortage of free educational content. However, there is much less good content available online for 3D printing, since online and offline communities for 3D printing aficionados are still in their infant stages with this newer technology.
5. Practical applications for regular people
While 3D printing might appeal to your geeky side or inner child, most people won’t rush to buy a 3D printer until you can print out your favorite jacket or pair of shoes. While you can already make a render and print a model of many common household items, you probably won’t find a plastic jacket to be that comfortable. Although some newer kinds of 3D printers can print fabric, these are still in their earlier stages, and more combinations of materials need to be created in order to make 3D printed goods more comfortable and stylish.
3D printers that can be used for robotic architecture to build houses. So the future is coming…
Source: www.inc.com; Author: Heather R Morgan
6. Accuracy and smooth surfaces
– Smooth surfaces (low roughness)
– Accuracy (in range of microns)
Both can be achieved by hybrid technology: post-milling of printed products.