3D Printing Stack Exchange
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1500 questions
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1 answer

How is E value calculated in Slic3r?

I want to know the math behind how Slic3r calculates E values. $E_{value}$ represents amount of filament in mm (unless volumetric extrusion is selected) that has to be fed into the hotend to obtain a road of specific extrusion width. Consider an…
Rock
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Why have heater blocks on hotends?

I understand that heater blocks act as kind of “low-pass-filter” on the temperature change of the hotend, but why do we need that? Wouldn’t it be better to have as little metal as possible in order to be able to control temperature changes quickly…
matthias_buehlmann
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laser is engraving the negative space

I am using LightBurn to laser engrave on wood. I am just trying to print some letters. In the softwares preview the output looks correct. The black part is where the laser should burn and the red part are traversal/scan lines When i actually print…
codeNinja
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Material for autoclave-able part

I’m designing a part that will need to be autoclaved—it will be under steam at 121°C for about 15 min per job and I will want it to be able to go through the autoclave repeatedly. I ran a test PLA part through the autoclave and it warped noticeably;…
Alex Szatmary
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Add a laser module to Reprap Guru Prusa i3

I have a Reprap Guru Prusa i3 v2 3D printer. Here is a link to the 192 MB manual. And here is the link to the resources page for the Reprap Guru. Page 58 of the manual discusses electronics. I purchased a 5.5 W laser from an online resource…
codeNinja
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6
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Uniform squishy infill

I try to print a stamp with flexible filaments. The problem I encounter is that the filament is flexible, but not soft. This leads to small differences in height to parts of the stamp not working. One solution would be to add a small 'cushion' to…
E Doe
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Does the X/Y bed orientation of a model affect the print detail quality?

My FDM printer bed moves on the Y-axis and the print head moves on the X-axis and raises on the Z-axis. When printing rectangular objects (a model of Notre Dame in this case), are there print detail quality advantages to aligning the model…
kilomonk
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What materials would be appropriate for pool parts (chlorine & UV exposure) using SLA or FDM?

I've got a printer on the way later this year that's supposed to be able to do both FDM and SLA (with the appropriate accessories). I'm interested in printing some parts for swimming pools (the types that generally cost fifty cents to make, but with…
Jeff H.
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Print came out like a wafer

I'm not sure how else to describe it. There's probably a name for this but I just don't know it. But the bottom few layers came out great, but the rest came out kind of like a triscuit. Below are pics of my print and settings. I am using a delta…
user1053263
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Which software do I need to start print something?

I'm still new to 3D printing and I want to print something. I expect that I'll mess it up since I find nothing to adjust it but it is now laying around for 4 months and I'm sick of it. So my question is where do I find Windows software to print…
rekire
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Printer randomly moves to home during printing, then resumes as normal

During printing, my printer occasionally makes some mystery moves: it will very slowly move either the X or Y axis all the way to the left/front, before very slowly moving back to its original position and resuming the print as normal. I've checked…
Tom van der Zanden
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Why are the STL files for the Ultrascope telescope at 45 degree angle?

I began printing the parts for the Ultrascope DIY telescope designed by the Open Space Agency. See http://www.openspaceagency.com/ultrascope. All of the STL files for the 3D printable parts are canted 45 degrees. Brackets, tubes, everything I have…
zkent
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Which algorithm does Marlin use to create arcs?

I'm writing a paper about a plotter (I use a Prusa i3 with a custom "extruder" aka pen). And I'm supposed to write about the algorithms I/the plotter use(s). I tried reverse engineering, but since I'm not very experienced with this technique I…
Maaajaaa
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Is there a method or S/W available to stitch together a DLP projector's output into a "moving picture" to SLA print in a larger area than its output?

I'm popping my cherry here, so to speak. Refer to my Hackaday project for system details & pictures: Sciclone 3D Printer Conversion Repurposing a lab-grade liquid handling system to a 3D printer featuring 3 axis, 20 micron bi-directional…
MaximumMark
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6
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Is there a reason for the z-axis M5 drive nut to be super loose on the lead screw?

So I bought a prusa i3 kit from a company called folger tech off of ebay. I've built it and even printed out a few parts, but I noticed that a lot of noise seemed to be happening only while the x-axis motor was moving the extruder. Then I noticed if…
user273872
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