3D Printing Stack Exchange
3D Printing Stack Exchange

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1500 questions
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5 answers

What are some good FOSS or free tools for editing STL files for 3D Printing?

I'd like to customize and modify some parts on Thingiverse, beyond just simple scaling for 3D printing. I've been looking for some tools that convert the STL files into something that is easily edited, but so far all that I've found are really buggy…
Jim
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Why is CLIP so much faster than SLA?

Stereolithography produces parts by projecting ultraviolet light on the top of a vat of liquid photopolymer, causing it to harden. CLIP produces parts by projecting ultraviolet light through the bottom of a vat of liquid photopolymer, causing it to…
Mark
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How many times printed printer can print it-self?

There is a 3D desktop printer RepRap which can print most of its own components. Assuming each printed printer will print the next one and so on. Are there any limitation how many times this can be achieved? For example somebody printed for me…
kenorb
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7 answers

Troubleshooting filament slip on MakerBot 5

I run a high school 3D printer lab and we have several 5th generation MakerBot printers. On one of them I have considerable trouble with "thin" prints and filament slip warnings. So far I've tried changing extruders and using different filament…
dlu
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Calculating the estimated print time of an already sliced file

I started to write an application that calculates the estimated total print time from the G-code file for an already sliced model. The program works and it's pretty accurate. It works as follows: It scans the entire G-code file to identify all of…
BackSlash
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4 answers

Designing/Printing objects with sized holes

When trying to print parts that should contain certain sized holes, e.g. for screws, how to achieve that they are sized correctly? Is it possible to calibrate the printer perfectly, so it prints holes correctly sizes in all common sizes (e.g.…
Thomas S.
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PLA and bed heating?

I've read different things about PLA and heat-bed. Some say it is not needed, others recommend 60-70°C, but not for the first layers. For larger objects I often have the problem that the object does not stick to the blue-painters-tape-covered…
Thomas S.
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4 answers

Extruder stepper motor problem, what can be wrong?

I bought a self-made Reprap Prusa Mendel 3 printer, modified to be built from cheaper materials, and immediately after the deal I got various problems. I fixed the majority of them, but don't know what the reason of the strange extruder behavior is:…
Poliakoff
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3 answers

Marlin Adjusting feedrate

I'm using the Marlin firmware (1.1.0-RC7 - 31 July 2016) for a 3d printer. Currently the printing is not perfect due to slight inaccuracies in movements along the x and y axis. I'm trying to change the feedrate for speed along the xy axis whilst the…
make it happen
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2 answers

PLA use outdoors?

I have been using PLA filament for two years now and have had good prints. ABS on the other hand has not been so good, so my choice of filament is PLA. I am getting ready to do a sign for the American Legion and the colors are black, blue, and red…
Robert Morgan
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2 answers

How does the home position work on a Prusa i3 RepRap Printer?

By what process does the Prusa i3 determine it's home position? I have a feeling that it works like this, but I'm not entirely sure about it: If none of the end stops are activated; assume you are somewhere between Max-X, Max-Y, Max-Z and the…
leeand00
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6 answers

Pulling filament through long tubes

I'm setting up my printer in a small room, and I thought I'd come up with a system for more easily swapping filaments, but I'm not yet sure it is feasible. Rather than physically replace the spool, I'd like to hang most of my spools on the wall,…
mhelvens
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How to 3D Print 5-pointed star object that doesn't have flat bottom and hole in the middle?

I'm new to 3D Printing. I've created this star from Blender3d. As far as I know, most printers require a flat bottom. As you can see (blue line is Z-axis, red line is X-axis, green line Y-axis), the star doesn't have any flat sides or…
junerockwell
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How to choose an extrusion temperature?

From what I've been able to find out, online sources recommend around 205ºC for PLA and around 240ºC for ABS. But these are only guidelines, of course. Optimal printing temperature can be different depending on the printer, the filament, the model…
mhelvens
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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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