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Richard Horne
Richard Horne (RichRap) has worked as an engineer, marketer, and product designer. He blogs and shares ideas on making 3D printing easier for everyone.
Articles & Books From Richard Horne
Article / Updated 09-26-2017
As you get more confident with 3D printing, you'll want to set up a plate of parts and print them at the same time. This approach rarely causes problems, but you may want to use the nozzle-lift function (Lift Z setting) in the printer settings tab in Slic3r.Raising the print nozzle a fraction before a travel move is a good idea when you have a lot of parts on a build surface.
Article / Updated 07-24-2023
When your 3D printer's hot-end gets blocked or your extruder's filament drive fails, the warning signs are usually obvious. The stream of plastic starts to lessen and then stops; the printer keeps trying to print but extrudes layer after layer of nothing.The first things to do are stop the printer and ensure that the heater block on the hot-end is still at the expected temperature.
Article / Updated 09-26-2017
Here's an important tip for using 3D printing extruders: Use fans. Use a small fan to keep the cold-end insulator of your hot-end below the glass-transition point of your plastic. When you start experimenting with printing ultratiny objects with fine details or printing objects at great speed, you quickly discover an interesting problem in 3D-printing thermoplastic materials: controlling layer temperature.
Article / Updated 09-26-2017
For thermoplastic printing on a 3D printer, it's a good idea to have two or more extruders of the same type, but with different nozzle sizes and maybe a choice of 3mm or 1.75mm filament. Some materials — especially experimental materials — tend to come in 3mm and less often in 1.75mm. Depending on the manufacturer, 3mm filament may cost less than 1.
Article / Updated 09-26-2017
Here are some tips to keep your extruder and 3D printer happy. Keeping your extruder in tip-top condition is important, because the extruder is the device that takes the most wear and tear in your 3D printer. Follow this advice to make your 3D printing go smoothly, prevent failed prints, and keep your new 3D printer in action:
Check the accuracy of your software and firmware.
Article / Updated 09-26-2017
Any standard 3D printer's single-grip extruder also needs an idler wheel to push the filament into the teeth of the drive wheel. An idler wheel usually is a round bearing pushed by a spring or a rubber bushing.The following figure shows an idler bearing/wheel fitted to a printed lever; the spring on the left causes the bearing on the right of the image to be pushed into the drive wheel (middle), gripping the filament tightly.
Article / Updated 09-26-2017
The extruder is one of the most important parts of a 3D printer, so the quality and reliability of parts are critical. The filament drive mechanism almost always takes the form of a round bolt or rod with concave teeth that grip around the plastic. Typical filament drives used in thermoplastic extruders.
Filament drive mechanisms can be machined in a variety of ways.
Step by Step / Updated 09-26-2017
A RepRap development goal for home 3D printing is to print objects in many colors and even mix, on demand, the color of your choice from a set five or six master materials. Full-color home 3D printing is still a little way into the future, but you can use several current methods to brighten your 3D-printed objects.
Article / Updated 09-26-2017
As a general rule, slowing print speed on your 3D printer improves print quality. Fast travel speed can affect print quality because the print head gets to a new point quickly, and the high acceleration and deceleration sometimes cause unwanted shadows and artifacts on the print. Experiment with machine travel speed before changing other settings.
Article / Updated 09-26-2017
When your 3D printer's firmware is set up and the RepRap printer's mechanical movement is mostly calibrated, final preparation for 3D printing encompasses these procedures:
Making final calibrations of the extruder and hot-end
Entering these details into the firmware
Compiling and downloading the firmware again
Correct calibration of the extruder and hot-end makes all the difference between an awful-looking print and a stunningly good one.