Alternative Option for CNC machine (3D Printer

The best alternative option for a cnc machine is to use a 3D printing.

3D Printing
The 3D printing process builds a three-dimensional object from a computer-aided design (CAD) model, usually by successively adding material layer by layer, which is why it is also called additive manufacturing^[1], and unlike conventional machining, casting and forging processes, where material is removed from a stock item or poured into a mold and shaped by means of dies, presses and hammers.

The term "3D printing" covers a variety of processes in which material is joined or solidified under computer control to create a three-dimensional object,^[4] with material being added together (such as liquid molecules or powder grains being fused together), typically layer by layer.
How long does it take to 3d print a small object?

It depends on how much filament is used. Small flat key chains may take 10-20 minutes. Large objects can take hours. Most printers would take 5+ hours to print an object at the maximum size of the print bed.

What are 3d printers mainly used for?
In recent years, 3D printing has developed enough to perform crucial roles in many applications, with the most important ones being manufacturing, medicine, architecture, custom art and design. Some companies even use 3D printers to create more 3D printers.

How do 3d printing work?

The 3D printing process turns a whole object into thousands of tiny little slices, then makes it from the bottom-up, slice by slice. Those tiny layers stick together to form a solid object. Each layer can be very complex, meaning 3D printers can create moving parts like hinges and wheels as part of the same object.

What are the benefits of 3d printing?

The Advantages of 3D Printing are:

Speed. One of the main advantages of additive manufacture is the speed at which parts can be produced compared to traditional manufacturing methods. ...

Single step manufacture

Complexity and design freedom

Customisation

Ease of access

Below there is a link for a possible 3D printer that could be use

https://www.amazon.co.uk/gp/product/B07GYXP9ZL/ref=ask_ql_qh_dp_hz

Reference Link:
https://www.google.co.uk/search?safe=strict&source=hp&ei=Hhk3XdjeLq6UlwSj4JrADA&q=how+long+does+it+take+to+make+a+small+design+in+3D%3F&oq=how+long+does+it+take+to+make+a+small+design+in+3D%3F&gs_l=psy-ab.3...706.706..1420...0.0..0.134.205.1j1......0....2j1..gws-wiz.....0.1BvNp9071p4&ved=0ahUKEwjY5bbYn8vjAhUuyoUKHSOwBsgQ4dUDCAc&uact=5

What is a good 3d printing speed?
Meanwhile, the fastest set prints at around 150mm/s. Some printers may even print at a speed faster than 150 mm/s.s. Typically, faster 3D printing speed means lower quality, though. Above 150mm/s, the quality drops noticeably, and you may experience problems as the filament tends to slip at these speeds.

How much does 3d design cost
The most significant cost factor is how much time a 3D designer estimates that your project will take. The nationwide average hourly rate for 3D designers ranges between $25 and $55, although rates can be higher for more skilled and experienced designers.

What is the best 3d printer for beginners The best 3D printers money can buy? Check the following link:https://www.techradar.com/news/best-3d-printe
So, in this list of the best 3D printers, we've got the best home 3D printers that can sit on a table or desk, and are ideal for hobbyists and beginners who are just getting started, as well as professional 3D printers that can produce large-volume 3D printouts.

We also have the best 3D printers for a wide range of budgets, from affordable 3D printers, to high-end 3D printers that may have high price tags, but offer unrivalled quality.

It's important to note that because the devices in our best 3D printers list are all so diverse - and are aimed at different use cases - we've not listed them in any particular order.

So, read the research by TechRadar carefully to see which 3D printer is best for your needs. No one wants to spend all their time researching all the best 3D printers – not to mention spending a ton of cash – so our list of the best 3D printers contains clear and concise information on all kinds of 3D printers, so you can find the best 3D printer no matter what your needs are.

Things to know before getting a 3D Printer. 

Read website information about it to make a plan before getting one, the website found helps you and tells you information about the 3D printers as well and the possible 3D printers that you could get. Reference Link: https://www.hongkiat.com/blog/things-know-buying-3d-printer/

Summary about the website:

• Types of 3D printers. 3D printing is a broad term that covers the technologies required for producing physical materials. 
• Build Your Own Or Buy One.
• Price.
• Materials used to print.
• Safety. 
• Quality.
• Obtaining A 3D Model.
• STL Files.