3D Printing Stack Exchange
3D Printing Stack Exchange

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1500 questions
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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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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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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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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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Why is the center of my glass print bed lower than the corners?

I have a new Creality Ender 3. I suspect that I have not adjusted the eccentric nuts correctly, on the X-axis head carriage mounts. Even after a glass bed upgrade, using the Level Corners routine of the TH3D firmware, I can get the head to scrape…
SPJ
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4 answers

Can a heatbed PCB (Prusa Mk2) be straightened out?

I have a really bent heatbed PCB, the middle is elevated about 3 mm with respect to all edges. I have found this thread Warped PCBs, where a heating method is applied by baking a PCB in the oven, as described here: 3.2 Bow and Twist Repair. Can this…
kamuro
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How many times can you re-flash the Marlin firmware to a RAMPS 1.4 board before it degrades the ROM?

First of all I'm working with a Folger Tech Prusa i3 kit, if that makes a difference. Also I believe the Arduino is a Mega 2560. I know somewhere in the back of my head that electrically programmable ROM like what must be on the Arduino board…
user273872
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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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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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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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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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10
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2 answers

How can I improve the overhang angles my printer can successfully print?

Using an FDM printer and PLA or ABS, without adding support material. What modifications can I make to improve how steep an overhang my printer can print before it starts having problems? The obvious first answer is to add a cooling fan, increasing…
Martin
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5 answers

Secure disposal of 3D prints

The company I work for is protective of IP and has security procedures for disposing of anything that could be stolen for industrial espionage. Paper gets shredded and sent to trusted recycling center, all old data storage media gets obliterated,…
Engineer
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How do I know when filament is getting old, and what things can I do to correct for it?

I've heard I should store filament in sealed container, preferably with a desiccant. But let's say I let a spool get a little old on the printer, or I purchased a filament spool that was old or improperly packaged. How would I know? How would this…
Joel Coehoorn
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