Topics

1

Tangent Corner / Controlling micro servo with Mach3

« on: July 03, 2021, 01:47:59 AM »

I want to control a Tower Pro SG90 micro servo using Mach3.  Before I dive in and start experimenting I thought I'd reach out and see if anyone has done it or has an idea how to do it.  I'm thinking it might be as simple as using the Mach3 spindle controls and just connect the signal terminal for the servo to the step pin of the controller (like a Gecko G-320x).  Anyway, any insights would be appreciated.

2

General Mach Discussion / Tangential Control

« on: February 22, 2016, 02:46:14 PM »

Hi.  I'm trying to control a cutting knife using the Tangential Control feature in Mach3.  

Everything is working well with one exception; at corners in the cut geometry, where the A axis needs to re-position to be tangent to the upcoming XY move, the Z lift and A re-position are a blended movement.  

Normally, as with a true milling operation, this isn't an issue but in this case the knife I am using has an offset blade tip.  So, when the Z begins to lift and the A begins to rotate, the tip of the blade is dragged through an arc gouging the material.  What I need to for the Z axis to lift to zero and then rotate the A.  

I can't figure out how to do this.  Any ideas out there?  

Thanks.