Very slow motion

Slow motion when running a g-code file

Scenario

When running a file, the machine moves very slow. It jogs normally.

Problem

The NC file may contain no feedrates (Fxxx in G-code) and so it reverts to the Override speed. Or if feedrates are specified correctly, the software may be set up to override your feedrates.

Solution

In the Techno CNC Interface (Setup > Speed), the Feedrate might be set to "Override", and so it moves at the speed indicated in the Interface and not at the speed programmed in the NC file. Simply set the Feedrate to Auto and it will use the speeds specified in the file.

Be sure that you have F g-code commands in your file, and that the speeds are appropriate.