Download of NCspeed 6.4.1.10 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program's installer file is commonly found as NCspeed.exe. This program is an intellectual property of FORMTEC. The software lies within System Utilities, more precisely File Managers. The following versions: 6.4, 6.2 and 6.1 are the most frequently downloaded ones by the program users. We recommend checking the downloaded files with any free antivirus.
From the developer:
NCspeed is a software system for the simulation of 3- and 5-axis milling processes. The milling process is optimized with regard to machining time and process safety.
Based on a volumetric simulation NCspeed can analyze the material removal process during milling. This principle enables a visual checking of the milling process. For this purpose NCspeed offers a shaded visualisation of the continuously machined geometry.
You may want to check out more software, such as Stellar Phoenix Mailbox Professional, S.M.A.R.T. Disk Monitor or Exif Farm, which might be similar to NCspeed.