Marquee Loader 2.3 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free program is a product of VDC Display Systems INC.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The software lies within Home & Hobby Tools, more precisely Shopping.
From the developer:
Marquee Loader - lets you upload customized controller settings.
The loading calculation model has been developed to provide effective force demands for low cost DIY systems (compared to commercial control loader systems). The model uses control axis position and velocity as the indicator of control surface position and velocity, this is measureed at the brushless motor quadrature encoder.
You may want to check out more software, such as Block Load, Container Loading Calculator or Trenton Calcu-Load 2000, which might be similar to Marquee Loader.