3D Printing Stack Exchange
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1500 questions
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votes
3 answers

Grease for PLA sprocket

I am attempting to construct model tank tracks with accompanying wheels and sprockets. All parts will be printed in PLA. The tracks will be driven by electric motors. What would be a suitable grease for this project to minimize friction without…
HenrikS
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4 answers

Simultaneous heating of extruder and bed at start of print

I notice that if I print from Cura without preheating the printer, it will first raise the bed temperature and then raise the extruder temperature. The G-code it generates is: M140 S55 ; set bed temperature to 55 C M105 ; report…
rgov
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How to choose printer with dual extruder?

I use Prusa i3 with one extruder for some years and I would like to print from one material in two colors or from different materials for one model. Therefore I'm lookig for new printer with dual extruder. Is there some way how to measure and/or…
rudolf_franek
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11
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5 answers

What is the purpose behind a glass nozzle?

So while doing some research I stumbled upon a wiki page on reprap from a few years back where the user was creating a glass nozzle to replace the brass and PTFE assembly.1 Does anyone know the theory behind this? Glass is a great insulator so I…
FEA42
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3 answers

Why doesn't PLA stick to heated bed?

I have a basic Creality Ender-3 with a black rough bed cover. I'm printing with PLA. After assembly, I printed 3 or 4 small toys sliced by Cura with basic settings. All were printed very well! However, after that, extruded filament would not stick…
Roman Matveev
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11
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3 answers

Why does my PLA filament form a spiral shape and clog my extruder?

I'm using brand new PLA filament and am getting frequent clogs in my extruder. I've had this problem with 2 different filaments from 2 different vendors. It will be print just fine, then clog up. It doesn't ever seem to go more than 5 minutes…
Curtis
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11
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4 answers

Layer delamination

I've printed mostly ABS in the past and encountered delamination between layers many times. I've ensured the following conditions regularly: Build plate is level Base of print isn't warped (using ABS slurry) Prevent air draft. I've added acrylic…
tbm0115
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4 answers

Are there practical reasons to NOT use a stepper motor with lead screw for the X and or Y axes?

After a few months of printing with my Prusa Mk3 (with plans to get a second one soon), I have been wondering about making my third printer a home-built one was a larger print bed than the Mk3. One thing I wondered about is perfectly expressed in…
Mikel F
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11
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2 answers

How to obtain high resolution prints in a shorter period of time?

When I've printed an object I've had to choose between high resolution and quick prints. What techniques or technologies can I use or deploy to speed up my high resolution prints?
Adam Davis
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How to fix bulging first layers of print?

The bottom 1-6 layers of my prints always bulge, like an enlarged elephant foot effect. I've tried all the fixes for elephants foot to no avail. I'm using: XYZPrinting DaVinci Jr 1.0 Pro with their own brand filament (1.75 mm), nozzle: 0.4 mm, tried…
Nathan Headley
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3 answers

What's the advantage of two z motors?

Some RepRap models use only a single motor for the Z axis, others use two. For example, there is the 3drag that has only one motor and a smooth rod on the other side. There are modifications that add a threaded rod on the other side that is…
nnscr
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2 answers

slic3r: Can I vary the infill percentage for different heights of my model?

How can I vary the infill percentage for different layer heights of my model? Context: The bottom part of my model needs about 20% infill. The geometry of the top part of the model (mostly cones of various sizes) prints well with 0% infill and is…
Mark Harrison
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10
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7 answers

Which filaments actually do need to be stored in a drybox?

As I started to learn about 3D printing, the gist I learned was "it's better to store the filaments in a drybox." As I rechecked these notes, they were to a good degree from an era when PLA was rather new to the market and ABS was the goTo. Then I…
Trish
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Slicer line width vs. extrusion multiplier for layer adhesion?

My question would like to address what would be better for adhesion and general quality and possibly strength: either increase the slicer line width option or increase the slicer extrusion multiplier for layer to layer adhesion? This question has a…
0scar
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6 answers

Clamps / clips for glass on heatbed

I'm looking for clamps to fix the glass on my heatbed. After some search I found that some people use clamps printed of PLA. Can I use PLA clamps for a heated heatbed (~60 °C)? I also tried foldback clips but they block my nozzle. The Anet A8…
Thomas Sablik
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