21

There are a few questions on this topic, so a more generic solution would be informative and will prevent multiple questions of others when their sensor has a slightly different location. This answer intends to cover any position with respect to the nozzle. It also does not matter what kind of sensor it is, it can be 3DTouch, BLTouch, inductive, capacitive, ...


15

What is TRP and how does it work? Thermal runaway protection is basically self-explaining; it is protection against the temperature getting out of control. Essentially, the firmware checks whether the measured output of the thermistor (What is a thermistor? A thermistor is basically a temperature sensor; it is an electrical component (more specific: a ...


15

There are several things at play that can make a wider line nice to have: First layer adhesion Due to some filaments having serious struggle to get the first line or layer stuck to the bed, it can be an easy fix to just increase the line width, generating a bigger Adhesive Force $F_a\propto A(l,w)$, where A is the area covered by the line, and thus simply $A=...


15

Welcome to the fantastic, sometimes frustrating but most often glorious world of 3D printing David! :) Your question is really very very broad, but here's my contribution to make your first steps a success. First of all: I don't have experience with the Robo R2, but judging from the specs available online, I would say that you got a machine that take care ...


15

Send M115 to the printer. This command is Request the Firmware Version and Capabilities of the current microcontroller. Response example: ok PROTOCOL_VERSION:0.1 FIRMWARE_NAME:FiveD FIRMWARE_URL:http%3A//reprap.org MACHINE_TYPE:Mendel EXTRUDER_COUNT:1 For more info see here, RepRapWiki- G-code - M115: Get Firmware Version and Capabilities. Of ...


14

There are three main options here for Mendel style ZX gantries: One Z screw and motor, which is similar to a cantilevered design but somewhat more stable because of the opposite smooth rod Two Z screws and two motors Two Z screws and one motor, with belt synchronization of the two sides Of all of these, running two screws off one motor is clearly superior ...


14

Designing a part for 3D printing often doesn't seem to have many special considerations, but I have learned the hard way, that there are some things to do differently. This is just a list of things to that one should keep in mind in addition to basic principles of design1 when designing parts, keeping the subsequently slicing the parts in mind too: Print ...


13

Generally speaking, both settings result in the same1: The feed rate of the filament gets adjusted. Either you set a general multiplier, or you demand a wider line which does make it set a higher multiplier hidden in the software. 1 - if you don't look at any other factor that is! But... There is always a but, and this one is big: While we can work with the ...


13

When centered in the slicer correctly, without offsets defined in the slicer, the printer is most probably incorrectly configured! Luckily you can do something about that! Basically, you will have to calibrate the printer for a new center. Printer origin? First of all, the firmware determines where your origin of the printer is. This implies that you need to ...


10

Ghosting is an artefact in the print due to the vibrations in the printer that are induced by rapid changes of direction. It is important not to confuse them with inherent vibrations in the printer due for example to the belts being loose or the bearings not being in perfect order. The good news is that it is relatively easy to tell them apart: ghosting (...


9

Printing temperature basics Manufacturers generally specify a somewhat wide range of printing temperatures, and what temperature you should actually need can only be determined by trial and error: The thermistor in your hotend is not 100 % accurate and may have an offset of a few degrees compared to its actual temperature. Your hotend has a small ...


9

Shouldn't a 0.4 mm nozzle create a line of plastic 0.4 mm wide Not necessarily. Due to a phenomenon known as die swell extruding plastic through a 0.4 mm nozzle, the line of plastic that is created is actually slightly wider. Pressure inside the extruder compresses the plastic slightly, and it expands again as it exists the nozzle. They ...


9

I'm surprised your research hasn't answered your question, as the concept is relatively simple. You have most of the answer in the question. The missing item is a light source. Usually the source is an array of ultraviolet LED modules. There are resin printers that would not be called LCD printers, as they use computer display projectors to generate both the ...


9

Stepper motors contain two distinct sets of coils. The current in these coils is governed by your stepper motor driver. To move the motor in either direction, the coils are being driven one after another, and in different directions. Imagine this being a normal 3-phase AC motor, but instead of three phases, only two are used. A "full steps" (1/1 "...


9

There are several programs that could serve as a console to connect to a printer, put let's start somewhere: the USB connection. Connection with USB When connecting the printer via USB for the first time, we will get a notification that some unknown item is connected. If we use windows we can learn what device it decided we now have via the device manager (...


8

that the NEMA17 motor would be using 400 Steps per mm in Z. configuration_adv.h tells that the microsteps on the Z-axis motor are 16. Easy. There are 400 microsteps in a millimeter, and 16 microsteps in a full step. So, there are 400/16=25 full steps in a millimeter. So a full step is 1/25th of a millimeter, or 0.04 mm. Your layer height should be a ...


6

First; find a model! To print something you require a model (usually this is in STL format, look into websites called Thingiverse and MyMiniFactory for examples). Once you have a model file, you need to make it readable for the printer firmware. If you can't find suitable model, then you need to design a model yourself (or ask someone to do it for you) or ...


6

Ultimaker Cura contains "Extensions"; in version 4.1.0, the process is as follows: Extensions -> Post Processing -> Modify G-code Add a Script -> Pause at height Choose the one that matches your firmware! Choose the Pause height to match the height the insertion should take place. Usually, this is to be the layer just before the roof is to be printed to ...


5

It helps to understand the different aspects of dimensions, so you can use the terminology correctly. This will help you define your variables in OpenSCAD with correct names. (Tolerance is the wrong term to use.) And once you have correct names, you'll understand how to specify the dimensions in OpenSCAD. Tolerance is the amount of random deviation or ...


5

Differentiation The main differences between the e3D-Nozzle family and the "simple" Nozzle are the wrench size, body length and thread length of the nozzle. In fact, I have come across 2 different "Chinese" styles of nozzle, a "big" and a "small" one. Comparison For comparison, take a look at this photo, where I aligned the lower ends of the bodies to ...


5

Step 0: extracting old settings & setting up The first step is to get yourself a printing software that has a Console or Terminal like present in Repetier Host, Pronterface (as part of the Printrun software suite), OctoPrint or any other tool (e.g. serial connection with PuTTY also works) that allows to communicate with the printer to extract the ...


4

There are several yet unmentioned considerations: Given the same movement speed thicker lines fill up a layer quicker, because more volume is extruded per second. In some systems the extrusion flow is the limiting factor for speed, but around corners the print head needs to slow down. Thicker lines = less lines = less corners = less slow down = higher print ...


4

Ghosting is caused by differential movement between the bed and the head when the head undergoes acceleration. The forces add energy to a resonance in that differential vibration mode. By changing how you mount the base, you will change the mode and probably change the frequency. With the soft mounting, the bed can move more easily. It will tend to ...


4

In addition to this answer, the OctoPrint 3D print server software contains a terminal which you can use to send G-code commands from a browser: OctoPrint In the bottom string input box (under the check mark items) you put in a G-code command, which will be send to the printer when you hit the Send button. If the printer gives a reply to that command, it ...


4

A filament made of pure plastic won't be abrasive. The abrasion comes from the added particles. Filaments with added particles of any kind (there are not so many after all: glass/carbon fibres, metals, glow in the dark, wood, stone) will usually be always be advertised as such because they always carry a higher price tag compared to the plain plastic, ...


4

No, it is not necessary to call G29 before every print to "auto level the bed" 1) provided that: the bed surface has not changed (e.g. large load or force has been exerted on the build platform, leveling screws are accidentally adjusted, a substantial different bed temperature is used causing different thermal stresses, etc.), the carriage of the ...


3

I have found that "Troubleshooting and Maintaining your 3d Printer" by Charles Bell has a good overview of: 3d Printer Assembly and parts 3d Printer Calibration 3d Printer Software Filament materials 3d Printer Maintenance (both preventative and corrective) 3d Hardware Troubleshooting 3d Print Troubleshooting


3

What is Thermal Runaway? Let's look at a Thermal Runaway Test (#2) performed by one Chris Bate. In this video the experimenter drove the heating element non-stop until disaster. The Nichrome wire in the heating element melts at about 1,400 °C. Only once it melts, will the circuit will break and the current stop. The aluminum heating block however, melts at ...


3

As to why this happens, particularly with a budget printer the end-stop mountings may not be particularly precisely located, or the moving part may actuate the endstop slightly differently in each build. In my case, replacing the hot end (and thus the whole carriage) gave me an offset of some cm. With this upgrade, it was impossible to retain the stock ...


3

The coils in the stepper act like speakers. Its not that the stepper is making less noise, it's just making it in frequencies that are above the average person's hearing.


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