Hello,

My CNC machine is working correctly and cutting out my part to spec; however the display for units/min seems to be 2x the actual speed. 

See attached.  Any ideas?  I asked in the general support and Hood suggested I try here.

I'm using the latest "lock down" demo version (soon to be licensed).

We will take a look at this, but may take a while.

So I take it in your system it displays the same?  In other words is this a known issue?

Mach3 with stepper motors works in the open-loop control and controls the feedrate in advance. I am not aware on how the units/min is calculated and can not advise you here until we contact Mach3 authors.

Any update on this issue?

Still waiting for an answer from Brian...

Is there an answer to this issue after 3yr ?

Have you tried the latest plugin? Quite a few versions back, the speed filtering has been applied.