TP,
I will give you this much, yes most people do not do fine 3D Engravings on their Mill or Router that contain large files.
You cannnot turn off Toopath display in Mach4 (at least not that I can see) on Mach3 yes you can.
Mach3 has handled these large files as well as displaying the toolpath both in 3 and 4 axis with no issues.
Mach3 uses miniscule resouces to do these large files with the GPU.
Using this NB 4 Axis Simulatneous file 73,701KB finish cut for Router Table only uses 23MB of GPU and 0% to 1% GPU Load and a low temp, with 48% CPU load and a low tempwhile cutting.
Mach4 with this NB uses 168MB GPU 97% GPU load and high temp (it would over heat the NB on a full run), the CPU is 20%. doing the samething.
Mach4 does not rotate the toolpath at this stage as well like mach3 does it just stays stationary.
There are issues with Mach4 Toolpath display program and these are being worked on, so when this is completed then maybe the problem will be fixed.
The graphics card in this NB on its day was Fast (NVIDIA Quadr NVS 320M) for Notebooks with XP and Vista.
We are trying to extablish specications using existing old equipment running XP Pro.
Regards,
Mauri.