CAM for Siemens SINUMERIK

Machining centres with Siemens SINUMERIK 828D or 840D controls (802D too).

From a post users run

Open MillPath The controller check

What the Siemens SINUMERIK post writes

Comments after ;, G710 for millimetres and G700 for inches
G0 SUPA Z0 D0 (Z to the machine zero) before every change, then T<n>, M6, D1: D1 brings the tool length in (no G43 on a Sinumerik)
Drilling as Siemens standard cycles: MCALL CYCLE81 / CYCLE82 / CYCLE83, a G0 X Y block per hole, MCALL to end
Dwell G4 F in seconds
Arcs with I J, split at 90 degrees; helical arcs

Files end in .mpf. Every file is read back before export and checked against the simulated toolpath.

Shaped after Autodesk's Fusion SINUMERIK 840D and 828D posts and SharpCam's Siemens 802D definition, a post users run.

The cycles are written in their basic parameter lists, which older and newer Sinumerik software both read.

Cutter compensation (G41 / G42) is not written: on a Sinumerik D holds the whole tool radius, not a wear value.

Where this post comes from

A post users run on these machines: SharpCam Siemens 802D machine definition 1.2.0
Another CAM program: Autodesk Fusion SINUMERIK 840D and 828D posts (2026)

Not yet confirmed on a machine. This post follows the sources above. Before the first real job, run the controller check in the air, or compare with a file that already runs on your machine (Export options → Check this post).