3D Printing - "It's all about design and quality output. Not how fast the printer can run."
I am sitting in my office worn down a bit from just coming in from mowing my yard in the Texas 90-degree heat and humidity…
My thoughts drifted to my three-D printers I have in my office. They need to be making something.
Spool Hole Theory
I read over and over again, rants from novice 3D printer users about the size of the hole in the spool of filament. They assume the manufacturers are total idiots with their usually large diameter center hole they build into their spools.
Low Cost 3D Printers
This is just my observation and experience. I am not promoting any particular brand of 3D printer. User experience depends on, well… user experience and the ability to recognize problems and make corrections. Mostly an ability to realize that about half of all beginner 3D printer “problems” are self-inflicted by the users lack of experience and inability to admit or realize their own mistakes. A tool is only as good as the user.
I purchased a Kilo of dark brown PLA with the brand name of AMZ3D. I have no idea who they are, but the product is clearly marked as “Made in China”. Someone in China is running this product on their line. I don’t have any problem with that.
It is obviously a brand created for Amazon. The AMZ in the brand name is the first clue. I did a web search and everything I found indicates it is an Amazon branded product.
One of the critical parts in a FFF 3D printer is the extrusion nozzle. It's that part that lays the rubber on the road. The exact flow of plastic is determined by temperature which affects viscosity, filament feed rate which is pressure, filament size which is volume. Put those factors through an orifice of a specific size (which then is a metering device), the exact flow can be calculated. The nozzle is the orifice but it also determines the initial diameter of the extruded plastic.