3D Printing Stack Exchange
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1500 questions
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White PLA prints frequently have rough sidewalls near top of the print

This has happened a few times whenever I print with the white PLA (Hatchbox 1.75 mm). It seems that the print job produces smooth sidewalls for most of the part but at a certain point and above, the walls become rough as if the alignment is off or…
Ryan Neph
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Is Tetrahydrofuran viable for dissolving PLA and sticking PLA objects together?

According to Wikipedia, Tetrahydrofuran dissolves PLA. It also apparently dissolves PET. THF is considered a relatively nontoxic solvent, with the median lethal dose (LD50) comparable to that for acetone. Wikipedia further states that it's not…
Tomáš Zato
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Where to find Z coordinate in G-code for Delta printer

I´m currently writing my own firmware for a custom Delta printer. Therefore I also need to read G-code from programs like Slic3r. Even with a small example like a cube, I´m struggling to find out where the Z-coordinate is hidden in the code. Here is…
JohnDizzle
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How important is the dimensional accuracy of filament relative to the detail of a print?

In this answer user Barafu says, Yet I manage to keep my tolerances +- 0.05 mm which is enough for everything but miniature printing. I have asked for clarification on that answer regarding what is meant by "miniature printing" but in the…
LegendaryDude
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Why are my prints so defective?

I received a Monoprice Maker Select v2 (I3 V2 clone) from my wife for Christmas. The sample .gcode files that came with the printer generally print great with no noticeable defects. However, when I try to print miniatures for use with table-top…
LegendaryDude
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No Z hop in Dual extruder, print getting disturbed at retraction point

I'm using a Lulzbot KITTAZ with V2 Dual extruder(0.5mm). When I'm printing anything, the front left side of the print is getting disturbed because whenever the tool head switches the action between the extruders, they stop at the front left point of…
Veda
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What are some conductive filaments that can be used in printing electronics?

I'm very new to 3D printing, and I am very interested in printing electronics. I want to be able to print out circuits, so I've been trying to find a conductive filament. What sorts of conductive filaments are available to the consumer (me) and are…
Sigismund
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How drastic is reversing the polarity of the power supply to a RAMPS board?

If I accidentally reverse the polarity of my power supply to the RAMPS board, what exactly will be damaged? Will it harm my: RAMPS; Arduino Mega; Stepper motor and/or drivers, or; Any other electronic part(s)? Will all or some of them be…
Mehmet Aydın
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How can I print gears using very high resolution material like nylon

I'm trying to gear down a servo even further. I notice that the majority of the gears are made of nylon, and I want to create new gears that come close to the resolution and strength of the existing gears. I have a Replicator 2, but the resolution…
user379468
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Calculating extruder motor steps for 1 mm

I would like to calculate the amount of steps to turn the motor to have 1 mm of the filament. I did the following (using approximate values): The gear on the outside of the teeth as a diameter of 11mm. Therefore the circumference is 34.56mm. Divided…
Silberling
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Arduino Mega voltage regulator overheats with RAMPS board

This is my problem: I'm assembling a 3D printer with the RAMPS 1.4 board and Arduino Mega. I have assembled the structure and the electronics (set drivers, placed the jumpers, connected stepper motors...) and have uploaded Marlin firmware…
Francesco
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MakerBot Camera Stream

Is it possible to use the onboard camera on the 5th+ generation MakerBot printers to stream or save to a file? I'd like to try and use the stream for customers on my 3DHubs account and they recommend setting up a YouTube stream. However, even if I'm…
tbm0115
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Is z-axis zero near the hotend?

I'm in the process of building the D-Bot core XY printer, and I was hoping to know if the Z-axis 'zero' is near the hot end or near the bottom of the printer furthest away from the hotend? In this printer the Z-platform moves up and down and the…
electrophile
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Can MeshMixer export models for color 3D printing?

I have captured several models using 123D Catch and Autodesk ReCap 360. I do all my "clean up" work in MeshMixer to prepare the models for printing, and while exporting to STL works great for printing on my home FDM printer I haven't been able to…
TheNewHobbyist
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What grade of wire is required for the heating element on a J-Head extruder?

I have a large resistor that goes in my J-Head extruder. It's grey, and it came with the extruder. I'm uncertain as to what grade of wire I need to solder to it. It being one of the elements of the system that heats the hottest, I would think that…
leeand00
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