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1500 questions
6
votes
2 answers
What is this called? A tube flange bearing threaded for threaded pushrod
How should I describe this part which looks like a threaded flange so that I can research replacements? It is the gold piece in the middle of each photo. It is used to create a bed raiser in the FLSUN Cube 3D printer.
It gets attached to a motor…
K Mmmm
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6
votes
2 answers
How to post-process G-code to make prints faster using splines and arcs?
Recently (in 2017) there was a paper that got some publicity by researchers who are using a B spline algorithm to reduce vibrations in 3D printers. But before them, a B Spline implementation seems to have been first been made open-source by an alias…
K Mmmm
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6
votes
2 answers
Rough surface when printing
Is there a specific name for that problem? What causes this, and is there a way how to solve it?
Printed with PLA, 2 mm nozzle diameter, 0.2 mm layer height, 20-60 mm/s, 200 °C extruder, 60 °C bed.
user236012
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6
votes
1 answer
Do Cura's self-crossing infill patterns account for excess material from self-crossing?
As far as I can tell, Cura's infill patterns which are self-crossing, such as triangles, don't do anything special to account for extruding material over the crossing points multiple times. In theory this should produce either a blob around the…
R.. GitHub STOP HELPING ICE
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6
votes
3 answers
What actual dyes are used in filaments?
I've seen several questions about dyes in regards to food-safety, with no conclusive answers, as well as anecdotes on the RepRap wiki about how the mechanical properties of dyed PLA tend to vary by color. The general unsatisfactory answer is that…
R.. GitHub STOP HELPING ICE
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6
votes
2 answers
Can a short-circuited heat bed be salvaged?
I was working on my printer when something metallic came into contact with the pcb. I smelled smoke and quickly unplugged the printer. Anyway, this is the result and, of course, the heat bed won't heat.
Can this be salvaged or should I toss it and…
zkent
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6
votes
2 answers
Why is the printed object smaller than original model?
I am printing a small cylinder, but when the object is finished, it's smaller than the measures I used when create the model.
I used thincerkad to make a simple model, the measures are:
width: 90 mm
height: 2 mm
After the print was done, the…
Pedro Miguel Pimienta Morales
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6
votes
7 answers
How to work with PETG? Settings, caveats, etc
We've been doing some printing with PETG filament on Ender 3 Pro printer and the result were awful:
Here are settings we used:
Extruder: 240 °C
Bed: ~70 °C (± 10 °C)
Speed: 80 mm/sec
There are a few types of problems that we had:
Initially…
Vanity Slug - codidact.com
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6
votes
5 answers
How to fix wall separation in 3D prints (gaps in between wall perimeters)?
The print is very solid except for the 4 walls.
From the top, I can slide a paper down to the bottom. This is ONLY between the walls, the rest of the print is solid. The filament is PLA 1.75 mm.
But the bottom is solid, no gaps.
I have checked the…
theMouse
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6
votes
2 answers
Should I cooldown before shutdown?
I am working with Ender 3 Pro and in menu it has an option to cooldown. Is there any need to cooldown 3D printer before shutdown or can I just shutdown without cooldown?
Vanity Slug - codidact.com
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6
votes
1 answer
Change hotend thermistor input in Marlin
I have a Marlin driven Prusa i3 clone, by accident I cut through both thermistor wires for the hotend while it was powered on. The Arduino reset and the hotend thermistor no longer work.
Since there is a spare thermistor input on the RAMPS board I…
user16708
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6
votes
2 answers
Power Supply Safety
I just recently purchased a new MightyBoard (Rev G) for my Replicator that requires a new power supply.
The power supply for the Rev E was a 24 V/9.2 A which was necessary for the dual extruders and heated bed. I know I need a 24 V power supply,…
tbm0115
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5
votes
3 answers
Nozzle insulation gone, can the printer be damaged?
During a print a lot of plastic ended up ripping the nozzle's yellow insulation strap.
Can printing without this insulation around the fusion chamber damage the printer?
If there is no chance of damaging the printer, how likely is it that the…
Mathieu VIALES
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5
votes
3 answers
Bronze Filament Problem
I made a torus that was 1 on the x and y axes, and 3 on the z axis in Blender. It is supposed to be a bead for a beaded necklace. It was exported to Cura as an .stl, then printed on a Lulzbot Mini. It worked fine in plastic, but when we tried it…
Cathleen
5
votes
1 answer
Why do 3D printers have only one limit switch?
I have seen that many 3D printers have only one limit switch for each axis, how does it know where to stop on the other end?
My first guess is that the machine knows how big the plate is, and calculates it accordingly.
If this is true, then if I…
Riz-waan
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