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"Tac Tac" sound when printing with ABS	@Ecnerwal is right: that noise you hear is the extruder not being able to push the filament, and the stepper can't push any harder. When the extruder tries to push harder than it can, it gives up, and the "spring" tension it created in the filament forces it to go backwards a tiny bit. Then it tries again. Possible ca...
Strange stringing-like activity when printing face shields	This isn't stringing. It's failure to adhere to the previous layer, so tension in the newly extruded material just makes it form a straight line until it bonds to something again. Are you used to printing PETG? You didn't mention fan settings, but having any cooling fan at all will cause failure of layers to bond. Your...
Can I use a 12 V single channel optocoupler module in a 24 V machine?	You can safely use the module with 24V. The input side shows a red LED, optocoupler and 1k resistor in series. The LED and optocoupler probably have a voltage drop in the neighbourhood of 3.1-3.5 V put together, so for a 12 V input you will get a current of approximately 9 mA-. For a 24 V input voltage...
Materials testing of 3D printed parts	As with all AM related simulation existing FEM codes are not well suited to solving the material addition issue. It is very hard for the codes you mentioned to simulate layer-by-layer and toolpath-by-toolpath material addition. There has been significant research in AM simulation, most of it focuses on the metal addi...
Attach handle on a loose screw	You are facing 2 problems in this case: Material choice Design Material choice As far as I can see, this is an oven that can heat its interior to roundabout 250 °C, which means that the door will radiate a lot of heat. This needs special high-temperature plastics to withstand - PLA and ABS are not an option for this!...
How should I test filament samples?	Select an STL that exhibits characteristics you want to test (bridging, resistance to various pressures) and print it with each material. Preferably, run the same exact gcode, only changing temperatures, so that you get an apples-to-apples comparison.
Does a teflon insert in an E3D V6 clone limit it's useable temperature so it can't print nylon?	It depends how deep it goes. If the teflon goes into the hotend then yes, it will limit the temperature end. But: the teflon may just be something that ends somewhere in the cold side and sticks out so there is something to put into the extruder or higher up into the connector. I cam currently setting up a Slice Mosqui...
OpenSCAD 2018 Command line	You can specify variable values from command line using: openscad ...\ ... \ [ -D var=val [..] ] \ ... \ ... \ filename See the OpenSCAD Manual.
G28 ignoring Z-Probe X/Y Offsets	You need to enable the constant Z_SAFE_HOMING (like: #define Z_SAFE_HOMING) in your printer configuration file (if you're using Marlin firmware that is). This will move the nozzle to the middle of the plate prior to lowering the nozzle by default: #if ENABLED(Z_SAFE_HOMING) #define Z_SAFE_HOMING_X_POINT ((X_BED_SIZE...
Anet A8 Z-Probe Bed Positioning going outside of bounds	If you have done major revisions to the printhead by changing to another carriage, it could be that the nozzle in the carriage is not at the exact position as in the previous carriage. So, have you made sure that the new carriage has the appropriate values so that the nozzle is at (0, 0) when commanded to that positio...
What are the pros and cons of collecting parts yourself, versus getting a DIY kit and then modifying it?	From a general point of view, there are a few things to consider. If you buy a kit: Pros: You get some insurance that you have all the parts that you need to get a functional printer - all the electronics, structure, bolts, nuts, screws, washers, wires and so on. Most likely, all the parts you get are made to fit t...
Why is my print getting messed up mid-print?	For me, this looks like a cooling problem. Try to print this part 2-4 times in one print and get sure your fan is cooling all the time. It is a known problem, if the layers get smaller, that they do not have time to cool down. So you're printing on a wobbling bunch of still soft layers, which result in what you showed...
Ender 3 Won’t Start - flashing screen and blue LED on main board	Just after I posted this I tried swapping various components with my other Ender 3. It turns out a faulty power supply will produce this effect. When I swapped out the power supply it started normally.
Calculating gear ratio for leadscrew	Your lead screw nut advances 8 mm every complete rotation of 200 full steps, so a single full step would change the height by 8/200 = 0.04 mm. This implies you need to set the layer height a multiple of 0.04 mm. The gear ratio of 4:1 (a reduction) is required to get to your desired 0.01 mm layer he...
Marlin: possible to set ZMin limit when ZProbing?	You have not stated the version of Marlin you are using. I will assume we are discussing the latest Marlin 1.1 RC8. There is no longer any Z_PROBE_DEPLOY_HEIGHT but in earlier Marlin versions it did not function as you think; it was used to signify the amount of Z travel to execute prior to Z probe deployement. This i...
How to line up (x,y) print area between hardware and software?	The problem you are experiencing is because the position where the y endstop is triggered does not correspond to y = 0, but perhaps corresponds to y = 15 (replace 15 by the offset you're seeing). You can perhaps solve this by adjusting the endstop to trigger at the correct point, but you can also adjust this behavior i...
Ender 3 X-Axis Layer Shifting	OK I found the answer. I removed the extruder cover and found that the 2 screws attaching the extruder assembly were loose. A very simple fix to a very irritating problem.
Slicing directly from non-mesh data?	No, not natively To the current point, all slicers in frequent use do use some kind of 3D model with explicit surfaces to cut up into slices and then solve the path functions to create the G-code. The model can be in STL or OBJ or some other format, depending on the slicer, but at this point (November 2019), no slicing...
Apparently systematic nozzle clogging	The Micro Swiss hotend uses an all metal hotend. These type of hotends are more difficult to operate considering they do not have a Teflon liner that shield the filament of heat creep. From this article: Jams and clogs are often from a combination of excessive heat and non-optimal material flow. This effect is w...
How can I generate and export the support structure for an object as a mesh?	You could try Meshmixer its free and the supports generated with it are embedded into the 3D model. Here you can find a reference on Meshmixer supports. Meshmixer is well known for making custom supports for complex 3D models.
PETG Sticking to Nozzle	It could be that you're having issues now due to the filament absorbing moisture. I had a big problem with it doing that when I had waited for a few months after opening my filament. Dehydrated it using just my heated plate and a foil lined box over the top and it fixed it right up. If that's something you haven't trie...
Replacing ceramic tape on Wanhao Duplicator i3	I have a wanhao dup i3 too. It does not matter a lot which ceramic wadding and / or kapton you use. The more you seal off, the better it works. If you have a full metal hotend and a powerful cooling blower and need temps above 250 celcius, you might want to do the best you can with a good padding of ceramic and kapton...
Would appreciate advice on unclogging hot end [Makerbot Replicator v2]	For molten filament to jam at the inlet to the thermal barrier tube like shown here, there must be something wrong with the cooling in your setup. The cold zone needs to be cool for the extruder to work right. It looks like the cold zone is not staying below the glass point of the plastic, so the filament softens and m...
FreeCAD: Scene doesn't look 3D	FreeCAD, like many other 3D programs (including blender) does use Isometric/Orthographic display as the default displaying option as it allows to see on one view if some lengths or angles are "equal". In many cases, a perspective view can be toggled on to allow visualization in a room, especially for architectural one...
Ender 3 Pro Weak Prints after Cura upgrade	Total user error on my end. With the new version of this app somehow I did not catch that material selected on the UI dropdown was set to some custom material and not Generic PLA. Once I selected the proper material, all worked as expected.
How to add tolerances/gaps in 123d Design?	Unfortunately, 123D Design doesn't have such a feature. You could select multiple surfaces and push/pull them all at the same time though. Remember, your 3D Printer's slicer should have an option to undersize or oversize holes and walls, to help reduce/remove the effect you talk about. It's called size correction, I...
Z-Axis raising and dropping substantially during print knocking print off	Can you send a link to a short video of the problem occuring? It might be because of multiple factors but we will be able to identify if there's a video of it. Possible reasons: Z axis nut might be too tight. This would cause the nut to bind with the leadscrew and so the motor will not be able to lift the z-axis fur...
Connecting Sain Smart Mechanical End Stops to Ramps 1.4?	The multiple connections are redundant. Your picture indicates the wires labelled as "SIGNAL, GND, GND, VCC". This is correct if the board is a "standard" mechanical endstop v1.2. The two middle pins are both ground, but you only need to use one of them. You can simply connect signal to signal and ground to ground. Th...
Could you use ultrasonic vibrations instead of a roller with an SLS/SLM printer?	No The problem is twofold. Resonance and Granular convection Resonance Let's start with an empty box. We toss in some powder to create the first layer and use an ultrasonic to create a first layer. What happens? The bed starts to resonate depending on the sound you send into it in patterns - and the powder starts to fo...
E3D Thermistor Alternative	I like the mounting method on my Mk9 extruder: there's a small hole drilled into the heat block, parallel to the heater hole. B3 Innovations sells a thermistor packaged into a small spring. The whole assembly goes in the hole, and a setscrew (gently!) secures it. You could just as well put a bare thermistor into a spri...
After print failure cant extrude PLA	If the hotend is okay, consider yourself lucky and consider the nozzle a loss. Aside from specialty items like ruby tip ones, nozzles are a consumable anyway. Even if you can clean it out well enough to get it working again, it's unlikely to extrude as well as a new clean nozzle. Acetone is probably not going to help; ...
FDM, ABS Post-processing methods	Your objective is quite a challenge, considering the limitations within which you have to operate. Small diameter of an appreciable length is daunting indeed. I would consider to use a regulated heat source such as a soldering station, one with removable tips. After electing an appropriate tip to handle the dimensions...
How to connect filament end-to-end?	You'd have to ensure that the joining portion of the two filaments do not "bloom" or increase in diameter, which would happen if unconstrained at the melting and joining time. Alignment is also critical, otherwise you have a varying diameter from one color to the next at the point of join. There's an item on ebay whic...
Printing Plastic Replacement Parts	The easiest way is as you currently do: model the pieces by hand, using (digital) calipers to measure them. Scanning technology isn't very good, and the models are not of printable quality. Usually, fixing a scan is more work than modeling an item from scratch.
What does Marlin's G30 code do?	I believe G30 is a carry-over from CNC (G-code originated for CNC not printers) I believe it is for going to a secondary reference (home) position and includes an optional by-way-of address that can be included in the command. Looking at Marlin 1.1.0-1 (latest release), it seems to do what you said: Move to the requ...
Optimum ratio of line width to layer thickness for overhang performance?	Cura high-lights overhangs in red if the printer would end up printing completely into thin air. If your overhang is angled instead of being a purely vertical-to-horizontal transition, a much thinner layer height can increase the chances that enough of the prior layer exists to support the next layer being printed. ...
Is having 4 bed leveling adjustment points rather than 3 problematic?	Similar reasoning as for question "3 vs 4 bearings for y axis travel"" holds. If you introduce a fourth point, it is more difficult to make a flat plane. Provided that your bed is stiff, e.g. a flat piece of glass, or a thick metal plate is used, you do not need more than 3 screws. Both my custom built printers use pi...
Mechanics for modelling a push button latch spring	A commonly seen method to provide spring action in a 3D printed model is to use a series of curved and straight segments. Some of the designs use the segment assembly in compression, aligned with the plane of the print, while others use the segment assembly for springiness perpendicular to the plane of the print. An e...
Printing starts well but then it breaks down, Anet A8	The answer by fred_dot_u is fine for small prints with relative low cost or batch producing, where a single part is needed several times. But if you print something big or unique it's not cost effective. Slowing down the complete print is also not very time efficient. In Cura there an option called Mininum layer time...
Show the time index in Cura Layer View playback	These estimates tend to be very approximate, even if Cura has the accurate acceleration values for your firmware. An error of 100% is not unusual. What you probably want is an alarm at a specific layer (a few before the critical ones). You might be able to add this to Octoprint fairly easily - it does support plugins ...
Connecting (Anet A8) 2004 display to MKS GEN L	I've got the Anet A8 display working on a RAMPS 1.6 (which basically works exactly the same as a RAMPS 1.4 board). Note that at first connection I got exactly the same display when I connected the LCD to the EXP1 and EXP 2 headers using the "smart adapter". To get the Anet A8 display working on a MKS GEN L (which is b...
Raft hard to remove?	A couple things to consider: Ensure that your build plate is flat and level. An un-parallel HBP could result in the object "welding" to the raft. Turn down your nozzle temperature. It is likely that the material is hotter than it needs as it is extruding. This results in a slower "cool-down rate". So, if it takes lon...
Can I print directly onto the bed plate? (Ender 3 Pro)	I've printed for several years direct onto the 3 mm heated bed of the Anet A8 I used; worked perfectly! I did use a specific 3D print spray for adhesion, see e.g. this answer on "Should you use hairspray on a metal bed 3D printer?".
BLTouch with TH3D Ender 3 pro	After setting up the BLTouch in firmware, you need to activate the leveling function for every print by inserting the leveling G-code 'G29' in the start G-code script of your slicer. The code should be placed directly after command G28. Note that you can test the working of the sensor from the printer display: sensor ...
How to calculate the approximate volume of material used in 3d print?	Possible way to calculate the volume of material used is to multiply the filament length (calculated by CURA after slicing and displayed in lower right corner) and surface of filament tip. Volume = Filament_length * ( Filament_diameter / 2 )^2 * PI Of course do not forget to convert all values to the same order of ma...
How do I keep the .stl files from being resized while exporting?	.stl Basics The .stl format has no inherent sense of which units you use. items are to scale to an ambiguous 1, which could be 1 meter, one millimeter, one lightyear or one inch. To a .stl, only the relative sizing matters. All these faces you see are compared to a line with the length of 1-unit that is Slicer-Modeling...
German RepRap NEO only heats to 130°C	A few possiblitites. You wire is too small. If your wire is HOT that is a fire hazard. Your thermistor is bad. Check with a high temp heat probe or try replacing thermistor. Your heating element is bad (rare). Last it could be a limit in your firmware. But that would surprise me. Any chance you have the bed and th...
Can I order a 3D print of a 1 ml transparent container?	Yes. You'll probably want to use SLA or Polyjet printers with transparent resin. For example, here's Shapeways' page on transparent SLA and their page on Polyjet (which says you need to phone them for transparent Polyjet parts as their online order system can't handle it). FDM printing with transparent materials doesn...
Ender 5 Underextruding	If you pulled the Bowden tube out of the hotend and then got this, you almost surely installed it wrong, leaving a gap between the tube and the nozzle for molten filament to fill and jam in. Remove it again with the hotend hot, and if there's a mess inside, look for guides on cleaning it. Then, to reassemble, loosen th...
What is the easiest way to modify/resize an object inside a STL file?	Many resources are available for modification using 3D CAD (including learning a tool such as sketchup, which is VERY beginner friendly). The easiest and fastest solution to your particular problem may be the reddit community "3D Print My Thing" which was created for EXACTLY this type of situation (help with modelling ...
How to use a multimeter to test how many amps RAMPS is pulling?	To measure amps (current), the meter has to be wired in series with the item to be measured (for this reason, ammeters are designed to have very low resistance). This has the down-side that you have to disconnect the component to put the meter in line with it. That makes it hard to do the "check a component at a time...
Help with Repetier firmware (probably locked and licensed)	The firmware is not really locked by the OEM1, you just need to upload (or, as you say burn) a new version. This is not unusual2. Repetier is just like any other firmware that uses Arduino boards. While it may seem intimidating at first, it really is quite easy to regularly upload new firmware to the Arduino Mega 2560 ...
Is it legal to make a fire weapon with a 3D printer?	Sort of. Fully plastic guns are banned in the United States by the Undetectable Firearms Act, because they can pass unseen through metal detectors - a huge problem. One way around this is to insert a slip of metal into the gun, thereby making it detectable by metal detectors. 3D-printed guns made of metal - were that ...
Has anyone experienced scorching or burning of cork heatbed insulation?	The real fire risks with 3d printers are electrical in nature. Lets say your wires come undone and happen to come next to the other lead. If it archs and happened to be in just the right position. Pretty unlikely. Once I did a bad solder job and when I was working on my printer. The wires literally burst into flame in ...
Removing Supports Inside Cone	That model didn’t need supports. Most of the time you can break the connections with the supports to the model by inserting a knife or flat object into the cavity. In this case you could use a probe to loosen the joins then wedge it out. If that doesn’t work you can use needle nose pliers to remove prices. Your best ...
3D printing extruder not warming up	I really hope the extruder doesn't warm up as this would be a problem with your stepper motor :) I'm sure you mean the hotend doesn't heat up. This could be a number of things but i would start to double check the pinout in your code vs the pins on your mainboard and measure if it gives 12v/24v (depending on your PSU)...
Differences between moving build plate vs. extruder	Without going into too much detail, since this is a very exhaustive topic, I'll write some pro's of each down from the top of my head: Cartesian XZ hotend, Y bed (eg. Prusa Mendel): easy to build (relatively) easy to maintain easy to modify understandable kinematics with the right frame, no x-y-z orthogonality (90 d...
FlashForge Finder turns off mid print and is unable to reset or update firmware	Same problem occurred to me, now twice. How much is the Finder's memory able/allowed to register? After erasing all but the print job, things go smooth.
Increasing hotend temperature to compensate for increased filament throughput	I think I see what you're asking, but I think you may be thinking about it incorrectly. It's really all about heat being added to the system at the same rate that it's leaving. The heat block is there as a heat reservoir from which the filament draws heat for the glass transition. The heat in that reservoir is maint...
Installing E3D v6 extruder electronics on Ultimaker Original+	I'm not certain exactly what you're asking, but I'll give this a try. If I've misunderstood, please give more details. It sounds like you're upgrading to the E3D v6. If so, the heater, thermistor, and fans should connect to the same places as the previous ones did. The exception would be if you had thermocouples inste...
Marlin - slowing down print speed	G-code commands are not in the firmware. You're trying to find something in the code that simply isn't there. Your slicer is responsible for generating a g-code file, which you can then send to your printer (either by printing from an SD-card) or using a host program like repetier or cura. The commands in the G-code fi...
Can I print an object with thin walls?	The test print in your question used an SLS printer. The other common alternative is FDM. For narrow outer walls with FDM printers, you want to think in exact multiples of the nozzle size. Furthermore, unless the printer is well-tuned, you usually want at least two rows for the outer wall. Otherwise any flaw at all in ...
How can I solve the problem of line distortions on my prints?	As towe noted in a comment, that's Z seam. The mechanism by which it happens is mostly the same as bulging corners. The print head is moving considerably slower just before and just after the layer change, decelerating to a stop then accelerating back up to speed in order to perform the slow Z-axis move, but the rate o...
Will I brick my Ender 3 if I try flashing without a bootloader?	My understanding is that if there is no bootloader, you can't flash over USB; you need an ISP programmer attached to the board. So if you're able to flash over USB, that means there is a bootloader, and updating via the bootloader should leave the bootloader in place and just overwrite the rest of the firmware. I'm not...
Good lubricants for moving parts?	When dealing with lubrication of plastics, any solvent or reactive substance is to be avoided. Petroleum is risky and Vaseline™ is a brand name for petroleum jelly. I've had quite good results using inert lubrication such as PTFE and silicone based lubes. PTFE is the generic term for Teflon™ and is quite a good lubric...
Are all glue sticks PVA-based? How to find out?	Not all glue sticks work! The working ingredient of a glue stick is Polyvinylpyrrolidone; a more elaborate answer is found here on question: "Why does hairspray work as an adhesive for ABS?". There are very good alternatives to glue sticks and hair spray nowadays. Specific adhesion sprays exist for several ye...
Is possible print this level of detail?	It is definitively possible to do what you want, but your questions are samewhat problematic: So, I need to know if it's possible to print that cylinder hard enough to work as an axis. "hard enough" is a mysterious quantity. What is the intended application? The load of the axis, the rotation speed, the medium i...
Why can't powder-based 3D printing techniques create enclosed or hollow structures?	It's not hollow or enclosed structures that are a problem. It's structures that are hollow and enclosed. Think about it. The machine lays down a thin layer of powder, and then a laser fuses some of that powder together to make a shape. Then, it repeats the process for the next layer. If you try to build, for example, a...
How to minimize damage when removing an ABS print from a heated glass print bed?	I moved to a plain glass heated bed with a brush applied acetone and ABS mixture. Using an old emptied nail polish bottle with brush, I added some acetone and then threw in ABS pieces until it reached a brush-able consistency. I then brush it on the glass build plate where I believe the print will occur, and it works v...
Simplified 3d will not run extruder	To use Mach3 to send printing you need to define the extruder as A instead E, since Mach3 only drives X,Y,Z,A and B motors. you can see an explanation here on is possible to send printing with mach3? Question. I haven't tried to see if is possible to change this letters directly on 3D simplify, because i'm using ramp...
Short circuit on RAMPS 1.6 board?	Your multimeter showing continuity doesn't necessarily mean there is a short. All your multimeter is doing is applying a small voltage and then, if the current that flows is over a certain threshold, reporting that there is continuity. The components (stepper drivers, microprocessor) on the board, draw current. That'...
How does a 3D printer print itself given the huge size?	3D printers obviously do not print themselves. 3D printers are sometimes used to make parts for other 3D printers, and this is what is meant by "self-replicating" 3D printers (which is a bit of a misnomer, considering that all designs require a substantial amount of non-printed "vitamin" parts). A printer that is able...
Insulating bed material?	I’m pretty sure it can be brought separately but usually comes with a lot of heat-beds; It is a type of foam that has adhesive on one side and aluminum foil on the other. Here is an example of what I mean:
Issue with weird heated bed temperature fluctuations	It really looks like either a bad thermistor or bad electrical joints. Are the connections to the thermistor itself crimped, or soldered? Are there connectors near the thermistor that can get heated up by the bed? Electrical connections that are mechanical in nature (such as crimped, or using a connector) can degrade ...
Raised lips on sharp vertical corners	If the amount of time spent by the head near the corner is significantly longer than what's spent per unit time elsewhere, you will get more extrusion at the corners and thus this effect. High print speed combined with low acceleration/jerk limits give you this effect. Using a lower print speed should make it go away ...
PLA 3D Print longevity after being printed	I've had white Hatchbox PLA parts in use outside in direct or partial sun for 3+ years without issue. It may help if you paint the parts for outdoor use, but I suspect the environment you describe would be fine for several years.
Problem with 3D printer not accepting new print gcodes	As you found out, sometimes the SD cards need reformating. And if they came with the printer they could be fake (Fake capacity), when you try to upload more than its real capacity they will just corrupt. My Anet A8 came with an 8GB SD card and it turned out to be 128 mb. With RMPrepUSB you can do a capacity test and...
How come firmware isn't uploaded?	Are you sure that the firmware is not being uploaded? You can debug this changing the STRING_VERSION on Configurations.h. If the version is not being changed, I would suggest trying to use another computer to upload the firmware or even another board.
My Anet A8's filament isn't extruding properly	The most likely problem is that you have a jammed nozzle. To fix this heat the hot end up to about 140°C then insert some PLA filament push it through and then pull it out forcefully. That should solve your problem.
What is the meaning of extruder's knocking sound?	The extruder motor may be skipping steps because of insufficient current. Typically, the stepper driver will have a small potentiometer that lets you increase or decrease the current. Increasing the current will give the motor more torque/force, but also cause it (and the driver) to heat up more.
12v 25A 300x300 Heater bed Mosfet	I have looked over the 20 or so most expensive MOSFETs in that shop, and none are suitable. It might be easier to go with a DC Solid State Relay rather than a bare MOSFET. If you do want to go with a bare MOSFET instead, a TO-220 package MOSFET can dissipate around 1W without a heatsink, and around 3-4W with one. For...
Problem with swapping E0 for E1 (TEVO TARANTULA MARLIN 1.1.x)	At first it was unclear from where the snippet you posted is taken from as it was not stated in the question (this has now been addressed by a moderator edit). Depending on the value of EXTRUDER_USE_E1 (and where and how it is set) the underlying code of the if statement will be carried out. Albeit said, swapping line...
Diamond hotend with single extruder motor	You might save yourself a lot of engineering by copying the Prusa MMU2. Here is a github project for someone doing exactly that: https://github.com/cskozlowski/mmu2 If you look on Prusa's web site, you can find printable parts for the MMU2.
What's the best way to pull out fillament from an all metal print head	Cold/Luke-Warm pulling can cause damage and wear to the hot end, and should only be used in cases where you suspect there's a jam in the nozzle. Pulling the filament out at a few degrees above its normal printing temperature and pulling quickly is what I use, and what I've seen other's also say, and the procedure most...
Anet A8 mainboard dimensions and hole offsets	Why don't you download one of the many casings that are found on Thingiverse that house the Anet electronics board and take measurements from those cases. I measured it from my own casing I designed a while ago: Hole distances are 86.3 mm and 91.3 mm (center to center)
3d Print pops off before complete	The issue you are having is with bed adhesion. Basically your print is not sticking well enough to the printer bed for it to resist the mechanical forces the part is being subject to during print. This the most common issue in FDM 3D printing and you can find a lot of material online on how to mitigate the problem. ...
Is it necessary to replace the SMD fuses in RAMPS 1.5 or greater, for use with 24 volts?	Without knowing the exact part numbers used for F1 and F2 it is impossible to say whether the fuses need to be replaced or not. However, based on the manufacturer provided schematic and BOM we can make a pretty good guess. Looking at the PDF you linked, it states that F1 is rated for 16V. Looking at the BOM spreadshee...
How do I use MEGA pin number designations rather than RAMPS pin numbers in marlin	The pin mapping that Marlin uses is defined in the file fastio_1280.h: /** * Pin mapping for the 1280 and 2560 * * 1280 22 23 24 25 26 27 28 29 53 52 51 50 10 11 12 13 37 36 35 34 33 32 31 30 21 20 19 18 81 82 83 38 00 01 78 05 02 03 79 80 54 55 56 57 58 59 60 61 41 40 39 71 70 04 17 16 84 06 07 08 09 85 15 1...
Anet A8 Calibrated but print sizes are wrong	If you have a stock printer, your calibration values should be stock - i.e. 100 steps/mm for X/Y. Also, as an extra hint, X and Y steps should be identical since the mechanics are identical (unless you swapped out one of the motors or drive gears). It sounds like you have Y correct, but something wrong with X. This co...
Why not use GT2 en lieu of a Z-axis threaded rod or leadscrew?	A lead screw can be fitted with a anti-backlash nut to get past your concern about backlash. Generally, backlash is not that of a problem considering the weight of the carriage (e.g. Prusa), or whole bed (e.g. CoreXY or Ultimaker). Certainly if you're not using Z-hop, the Z screw will only advance in a single direction...
Can toothbrush bristles be printed?	Actually last year a group did use a normal FDM printer to 3d print hair, brushed, etc. See the press release from Carnegie Mellon University https://www.engadget.com/2015/10/29/3d-printing-hair-is-as-easy-as-using-a-hot-glue-gun/ http://technabob.com/blog/wp-content/uploads/2015/11/3d_printed_hair_by_Gierad_Laput_Xi...
default axis steps per unit Makerbot replicator 2	The Replicator 2 and 2x use 18 tooth GT2 pulleys, 1/16 microstepping, and 200 steps/rev steppers. That makes the proper steps/mm value 88.888889. Note that Makerbot used ~88.56 steps/mm in their defaults, which is the value you get if you calculate from the belt+pulley pitch diameter from the Gates GT2 specs. But thi...
Re-homing Z: trouble resuming a print, what if I can't re-home?	Was able to make it happen, though I fear that I may have misjudged exactly where zero was, but we'll see in a few hours. Anyway, for those who may come along later, here's what I figured out: I already knew what my X, Y, and Z positions should be. I kept the heat on for the bed so the print wouldn't shrink and brea...
Creating a heated chamber from a very large heated bed	Cardboard is fundamentally paper. Paper ignites - just as Ray Bradbury claims - at around 233 °C or 451 °F. A thin heater wire usually glows red hot under operation. Not dark red, not blood cherry, not dark cherry, it's usually medium cherry to dark orange in operation, as one can easily tell by looking into a trusty t...
How specific can I get setting layer heights?	Layer hight can be theoretically anything as long as it fits into these ranges: it needs to be at least one step for the Z-Axis motor to be physically possible it should be at max 3/4th of your nozzle diameter to create an adhesion surface In praxis, the lowest setting for layer height due to physical limitations o...
commandline remeshing and simplifying tools	Netfabb came up in a number of suggestions that I found. Take a look at 3D Printing Under Arch Linux, which offers a number of solutions for Linux, including: OpenSCAD FreeCAD Blender NetFabb Slic3r Netfabb Taking the section on Netfabb: netfabb Private will provide you with a fully-loaded tool-box to do all t...
"configuration files" issue when trying to run Ultimaker Cura on RPI 4	The regular version of Cura has system requirements that the Raspberry Pi cannot meet, including the GPU required to run it. However, it looks like you can try an experimental version of Cura here.
How do I calibrate temperature control in a Repetier firmware?	When applying a voltage directly to the heater element, it should heat up very fast. You could measure the resistance of the heater element. A 12 V heater element of 40 Watt should have a resistance of about 3.6 Ω; you could test that with a multitester. If the resistance is a lot higher, the heate...
3D printed mold techniques for long and short term usage	Yes, this is very broad. That said... For high detail you want SLA. i.e. jewelry. If you just want a prototype of a mold, you can do a standard FDM style printer (95% of printers are FDM, and that number is a guess) Really, you should be asking what material you need for your mold, but you can open a second question ...
Second layer of ASA print 'runs'	I've now worked out the reason for the plastic 'running' on the second layer. It is because of the way that I prepared the G-Code file, using the option in Slic3r which lets you alter the layer height for certain layers in the print. The problem with this appears to be that there are other settings which are not alter...

End of preview. Expand in Data Studio

Dataset Card Creation Guide

Dataset Summary

We automatically extracted question and answer (Q&A) pairs from Stack Exchange network. Stack Exchange gather many Q&A communities across 50 online plateform, including the well known Stack Overflow and other technical sites. 100 millon developpers consult Stack Exchange every month. The dataset is a parallel corpus with each question mapped to the top rated answer. The dataset is split given communities which cover a variety of domains from 3d printing, economics, raspberry pi or emacs. An exhaustive list of all communities is available here.

Languages

Stack Exchange mainly consist of english language (en).

Dataset Structure

Data Instances

Each data samples is presented as follow:

{'title_body': "Is there a Stack Exchange icon available? StackAuth /sites route provides all the site's icons except for the one of the Stack Exchange master site.\nCould you please provide it in some way (a static SVG would be good)?",
 'upvoted_answer': 'Here it is!\n\nDead link: SVG version here\nNote: the same restrictions on this trademarked icon that apply here, also apply to the icon above.',
 'downvoted_answer': 'No, the /sites route is not the right place for that.\n\n/sites enumerates all websites that expose API end-points. StackExchange.com does not expose such an endpoint, so it does not (and will not) appear in the results.'}

This particular exampe corresponds to the following page

Data Fields

The fields present in the dataset contain the following informations:

title_body: This is the concatenation of the title and body from the question
upvoted_answer: This is the body from the most upvoted answer

Data Splits

We provide multiple splits for this dataset, which each refers to a given community channel. We detail the number of pail for each split below:

	Number of pairs
gaming	82,887
dba	71,449
codereview	41,748
gis	100,254
english	100,640
mathoverflow	85,289
askubuntu	267,135
electronics	129,494
apple	92,487
diy	52,896
magento	79,241
gamedev	40,154
mathematica	59,895
ell	77,892
judaism	26,085
drupal	67,817
blender	54,153
biology	19,277
android	38,077
crypto	19,404
christianity	11,498
cs	30,010
academia	32,137
chemistry	27,061
aviation	18,755
history	10,766
japanese	20,948
cooking	22,641
law	16,133
hermeneutics	9,516
hinduism	8,999
graphicdesign	28,083
dsp	17,430
bicycles	15,708
ethereum	26,124
ja	17,376
arduino	16,281
bitcoin	22,474
islam	10,052
datascience	20,503
german	13,733
codegolf	8,211
boardgames	11,805
economics	8,844
emacs	16,830
buddhism	6,787
gardening	13,246
astronomy	9,086
anime	10,131
fitness	8,297
cstheory	7,742
engineering	8,649
chinese	8,646
linguistics	6,843
cogsci	5,101
french	10,578
literature	3,539
ai	5,763
craftcms	11,236
health	4,494
chess	6,392
interpersonal	3,398
expressionengine	10,742
earthscience	4,396
civicrm	10,648
joomla	5,887
homebrew	5,608
latin	3,969
ham	3,501
hsm	2,517
avp	6,450
expatriates	4,913
matheducators	2,706
genealogy	2,895
3dprinting	3,488
devops	3,462
bioinformatics	3,135
computergraphics	2,306
elementaryos	5,917
martialarts	1,737
hardwarerecs	2,050
lifehacks	2,576
crafts	1,659
italian	3,101
freelancing	1,663
materials	1,101
bricks	3,530
cseducators	902
eosio	1,940
iot	1,359
languagelearning	948
beer	1,012
ebooks	1,107
coffee	1,188
esperanto	1,466
korean	1,406
cardano	248
conlang	334
drones	496
iota	775
salesforce	87,272
wordpress	83,621
rpg	40,435
scifi	54,805
stats	115,679
serverfault	238,507
physics	141,230
sharepoint	80,420
security	51,355
worldbuilding	26,210
softwareengineering	51,326
superuser	352,610
meta	1,000
money	29,404
travel	36,533
photo	23,204
webmasters	30,370
workplace	24,012
ux	28,901
philosophy	13,114
music	19,936
politics	11,047
movies	18,243
space	12,893
skeptics	8,145
raspberrypi	24,143
rus	16,528
puzzling	17,448
webapps	24,867
mechanics	18,613
writers	9,867
networkengineering	12,590
parenting	5,998
softwarerecs	11,761
quant	12,933
spanish	7,675
scicomp	7,036
pets	6,156
sqa	9,256
sitecore	7,838
vi	9,000
outdoors	5,278
sound	8,303
pm	5,435
reverseengineering	5,817
retrocomputing	3,907
tridion	5,907
quantumcomputing	4,320
sports	4,707
robotics	4,648
russian	3,937
opensource	3,221
woodworking	2,955
ukrainian	1,767
opendata	3,842
patents	3,573
mythology	1,595
portuguese	1,964
tor	4,167
monero	3,508
sustainability	1,674
musicfans	2,431
poker	1,665
or	1,490
windowsphone	2,807
stackapps	1,518
moderators	504
vegetarianism	585
tezos	1,169
stellar	1,078
pt	103,277
unix	155,414
tex	171,628
ru	253,289
total	4,750,619

Dataset Creation

Curation Rationale

We primary designed this dataset for sentence embeddings training. Indeed sentence embeddings may be trained using a contrastive learning setup for which the model is trained to associate each sentence with its corresponding pair out of multiple proposition. Such models require many examples to be efficient and thus the dataset creation may be tedious. Community networks such as Stack Exchange allow us to build many examples semi-automatically.

Source Data

The source data are dumps from Stack Exchange

Initial Data Collection and Normalization

We collected the data from the math community.

We filtered out questions which title or body length is bellow 20 characters and questions for which body length is above 4096 characters.

Who are the source language producers?

Questions and answers are written by the community developpers of Stack Exchange.

Additional Information

Licensing Information

Please see the license information at: https://archive.org/details/stackexchange

Citation Information

@misc{StackExchangeDataset,
  author = {Flax Sentence Embeddings Team},
  title = {Stack Exchange question pairs},
  year = {2021},
  howpublished = {https://huggingface.co/datasets/flax-sentence-embeddings/},
}