3D Printing Stack Exchange
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1500 questions
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votes
3 answers

Gnarly filament: just one of those things, or grounds for complaint?

everyone. I'm a relative newcomer to 3D printing, so I don't know what constitutes an unacceptably bad spool of filament. About 1/6 of the way into a roll of PETG (and maybe 4 hours into a 6-hour print), an over/under wrap brought things to a…
Glasseyed
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1 answer

What is the best length of the melting zone in the hotend?

There are many hot end designs out thee and one difference is the length of the melting zone. The melting zone is that part of the hotend where the pushed in filament is heated up and therefore starts to melt. Is it better to have a short melting…
Lars Pötter
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Extruder motor does not turn

When printing from Cura on my laptop via USB, my extruder motor does not turn to extrude filament. However, when I use the "move axis" command in the firmware (on the little screen on the printer), it seems to work fine, extruding plastic smoothly.…
Scott Saunders
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4 answers

Seemingly random lines on the surface

I'm getting seemingly random lines scattered across the top surface of my prints: Printer: Anycubic i3 mega Slicer: Cura 3.2.1 Printer chosen in Cura: Prusa i3, Gcode flavor changed to RepRap Cura Profile: Fine, "Outer before inner walls"…
AndreKR
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2 answers

What is the power consumption of the heatbed and hotend?

What is the power consumption of your heatbed (size) and hotend (model)? I want to verify that it is possible to use a battery to power them.
user9350
9
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2 answers

Getting PLA to stick to a cold bed

Right now my heated bed is down and I had no time to try and fix it and I am trying to print something for a friend. I am having the PLA lift around the edges which I have NEVER experienced. The glue is not helping like it did with the heat. And I…
Ljk2000
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Printing a CV joint

Fair warning: I am a complete novice in 3-D printing. This will, hopefully, be the first thing I've ever printed. I want to make a Constant Velocity Joint for a camera stabilizer I'm making. I've been looking at different options, and it seems that…
jhch
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9
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1 answer

Dimension SST Printer Broken parts

My company has an old Dimension SST printer that is out of commission due to a few broken pieces. I have contacted the Stratsys folk and they won't do anything until we purchase a multi-thousand dollar service policy. I also have a Makerbot that I…
Mjones
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1 answer

Heat bed troubles

I am currently building my own 3D printer, it is all set and ready to go but I seem to be having issues with the silicone heat bed I purchased. The motherboard I use is from the Flashforge Creator Pro for it allows me to use dual print heads. The…
LDF
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1 answer

How to configure Marlin to enable auto-fans with dual extruder

I have successfully assembled my custom-built 3D printer and configured Marlin for two extruders and one heated bed. Here is a picture of the printer. My heated bed runs on a linear axis with ball bearings. When the printer has been running for an…
xoric
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1 answer

How thin can my extrusion be from a 1.2mm extruder?

I always assumed that the smallest diameter that you could extrude was equal to the diameter of the extruder tip itself. Recently I heard that you can actually extrude a line that's as little as half the width of the nozzle opening. Is that true in…
Martin
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9
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4 answers

Thermal degradation of 3D printed ABS (and other plastics)

The short version of my question is: Are 3D printed parts made of ABS likely to survive for one year in an incubator at 80℃? Please read on for more details. I am printing some parts that will be used inside an incubator in a lab. They are likely…
N. Virgo
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9
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1 answer

How can I prevent my nozzle catching on my print?

I have created a budget 3d printer using parts of old computers, specifically I used the CD drive mechanisms for the x,y and z axis. This printer is similar to the curiosity E-Waste printer, as seen here: Link After quite a bit of time working on it…
Joe Clinton
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9
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2 answers

Using the end of a spool

I've seen several Q&As on recycling and reusing plastic from failed prints, but what have you done with the last few meters of filament? I've been keeping the ends of PLA (or sections I needed to cut) to maybe use for friction welding pieces…
Jesse Williams
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7 answers

Nozzle rubs on previous layers

I'm having a frustrating problem with my recent built custom 3D printer so every single print I made, from the third layer, the nozzle is "rubbing" on the already placed filament. This results in a complete mess, melting the previous layers with…
eduardogarcia234
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