I am a complete novice when it comes to CNC and I am having trouble getting my tools in my tool table to zero.
I have the Tormach tool system on my CNC converted grizzly g0704 running Mach3. I have measured all the tool heights Tormach's granite block and digital height gauge. I ever pulled up the diagnostics tab and got the exact measurement the probe engages.
I start by referencing all axis home with tool 0 then switch to tool 1(probe) before running very simple Gcode... Example: G31 Z-0.5 F1.00, once the probe picks up I manually set the DRO to 0.0000.
When I change tools and bring down the next tool to zero I am am slightly deeper than the original zero. I have measured my backlash to be around 0.007". I am off by ~0.040 to ~0.060.
I am confident my tool heights are correct and when I manually change tools I select the correct tool and the working offset is correct. I do not believe my backlash would cause that much of an issue?
Have you used the backlash adjustment in mach. I dislike using it, I'd rather fix the problem, but in a pinch until the problem is fixed it is adequate.