3D Printing Stack Exchange
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How can I create PNG image files from STL files?

I need to add some simple image renders of STL files to a document. I currently open the STL files in Preview or one of the slicers and grab a screen shot. Is there an easier or automatic way to generate PNG images from STL files on a Mac?
Mark Harrison
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Finding a shredder for my failed prints

I would love to re-use my failed prints by re-extruding the plastic to be used in the 3D printer once again. One thing that stands in my way is finding an effective way to shred the plastic into smaller bits for the extrude to use. What is a good…
Ljk2000
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Is this banding?

Are these vertical lines described as "banding"? Would the most likely culprit be the extruder? FWIW, this was printed in "vase mode".
Roger
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Run custom code between G-code commands?

I would like to be able to add custom commands/script to be executed during a print. For example I would like to write some software to take a picture check the print hasn't moved off the bead between layers. Does anyone know if any of the…
user802599
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Why is a heated bed important?

I hear that heated beds can help with removing finished prints, but not all printers have them! Is this a nice to have or must have feature? Are there any downsides to heated beds?
linuxdan
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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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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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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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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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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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Adhesion problems with masking tape

I have been playing around with the bed for a while and I still can't get the first layer to stick properly. I think I am getting the bed leveled good, I use the paper method. But yet I find myself with the filament lifting off and getting pulled…
Ljk2000
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Warping of bottom of print

The bottom of my prints warp/curve upwards, most often at the corners. This is a very slight curve, only about 1-2 mm. I print with a raft all the time. I don't have a heated bed. I print with PLA at 199 °C (390 °F) with a print speed of…
joshkmartinez
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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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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…
Mar
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