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Articles about software

  1. dxftools

    Introduction

    The purpose of the ‘dxfgerber’ program is to generate optimized DXF files for processing on a Gerber cutting machine. The software for this cutter is apparently not very intelligent and doesn’t seem able to sort line and arc entities in a DXF file in a relevant order.

    This …
  2. py-stl / stl2pov

    Note

    The Python version of this program has been renamed to stltools. The version on this page is therefore out of date.

    The C version is still current, although it has limited functionality compared with the Python version.

    Introduction

    The origin of this software was found in the desire of …

  3. lamprop

    (tl;dr: download the latest version from github.)

    Introduction

    The purpose of this program is to calculate some properties of fiber-reinforced composite laminates. It calculates:

    • engineering properties like Ex, Ey, Gxy
    • thermal properties αx and αy
    • physical properties like density (ρ) and laminate thickness (t …
  4. rrm

    date: 2009-01-17
    modified: 2017-12-28
    category: software
    tags: C

    This program takes filenames as arguments. It overwrites the contents of these files with zeros, replaces the filename with a random one and then unlinks the files.

    It requires a C development environment and the make program.

    The source code is available from the github repo.

    Warning

    It will not …

  5. onepad

    This is a set of programs to encrypt files using one-time-pad encryption. This is an old but theoretically impossible to easily break way of encryption. I came across this method in Neal Stephenson’s Cryptonomicon.

    It works by XOR-ing every byte in the cleartext message with a byte in …

  6. Symbols for labeling chemicals

    This package contains Encapsulated PostScript versions of the symbols used to label chemicals, according to EU directive 67/548/EEC Annex II.

    Note

    From Januari 2012 these symbols will be obsolete in Europe. From that time onwards, all chemicals should be labelled according to the GHS. For pure substances (not …


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