RoboFocus 5.2 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.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The program's installer files are commonly found as RoboFocus.exe, RoboFocusServer.exe or RoboFocusServer2.exe etc.
The actual developer of the free software is Technical Innovations, Inc. The following versions: 5.2, 5.0 and 3.2 are the most frequently downloaded ones by the program users. You can set up this free PC software on Windows XP/Vista/7/10/11 32-bit. RoboFocus lies within Education Tools, more precisely Science Tools.
From the developer:
The RoboFocus is a remote focus driver to be installed on your existing focus mechanism. RoboFocus provides digital control and feedback of the focus position using a stepping motor controlled by a microprocessor. The user sends commands from his computer to the RoboFocus to move the focus, and receives back digital position information.
You may want to check out more software, such as ASCOM RoboFocus Focuser Driver, which might be similar to RoboFocus.