Category Archives: Software

Tools for making, fixing or printing objects

Updated Slic3r config file for version 0.7.0

For a while now I’ve been exclusively using Slic3r for converting .stl files to .gcode files, so I can print things on my home-built 3D printer. The current version of Slic3r is 0.7.0, and it does what I expect it … Continue reading

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Fixing negative volumes with netfabb

I’ve blogged before about using Netfabb to fix problems in STL files, especially when I’ve downloaded them from Thingiverse.com. Last night I had a problem that the desktop version of Netfabb wouldn’t fix. After spending some time searching for understanding, … Continue reading

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Slic3r and Extruder calibration

Rich over at RichRap has just started a series of posts on using Slic3r for preparing STL files for printing, explaining the effects of the various parameters. His first article also includes some good info on calibrating your extruder output, … Continue reading

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Retraction solution with Marlin, Pronterface and Slic3r

I’ve just fixed some key settings in Slic3r. Retraction Speed is now 7mm per second (down from 100!), and the Retraction Distance is 1mm. There is still slight room for improvement, but this is the best I’ve had it running … Continue reading

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Retraction, Huh! What is it good for?

Retraction is the technique of sucking molten plastic back up into the heated extrusion nozzle of a 3D printer. Like squeezing the edges of a toothpaste tube to suck back in some of the toothpaste you accidentally squeezed out. The … Continue reading

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Getting your motors moving on a MakerGear Mendel Prusa

Here’s a quick and dirty guide to getting your motors working on a MakerGear Mendel Prusa 3D printer kit. I assume you: installed your arduino software installed the Pronterface printer control software installed your copy of MakerGear|Rick’s version of Sprinter, … Continue reading

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3D printing workflow and my modular raygun developments

I spent yesterday evening carefully adding to my raygun model in OpenSCAD. The image to the left is a screen capture. This morning I told my Mendel Prusa to print the model in clear PLA plastic. This is my first … Continue reading

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