Search found 13 matches

by JanneK
Sat May 14, 2022 7:44 am
Forum: Path/CAM
Topic: CNC Machine with built in radius compensation
Replies: 18
Views: 3778

Re: CNC Machine with built in radius compensation

However, ... if the "actual" cutter path is not fully calculated by the CNC as a separate step, and not stored/reviewed before initiating the metal cutting process, then I have to say that the manufacturer is complicit in pushing an approach which, at face value, appears to be time-saving...
by JanneK
Tue May 10, 2022 4:12 pm
Forum: Path/CAM
Topic: CNC Machine with built in radius compensation
Replies: 18
Views: 3778

Re: CNC Machine with built in radius compensation

Are you regularly switching back and forth between climb and conventional milling in the same jobs? I understand your point. A more comprehensive approach is possible so that a G41/42 is output before an operation depending on whether it's set for CW/CCW (Climb/conventional). Let's open an issue on...
by JanneK
Tue May 10, 2022 2:57 pm
Forum: Path/CAM
Topic: CNC Machine with built in radius compensation
Replies: 18
Views: 3778

Re: CNC Machine with built in radius compensation

Let's say i have a "design" bit with 10 and the actual value is 9.89. How would I tell the maschine to only compensate 0.11? As for our maschine it always compensates the full tool radius. (For sure you can't know how our maschine works, but how would you do it with a LinuxCNC?) Top This ...
by JanneK
Tue May 10, 2022 2:20 pm
Forum: Path/CAM
Topic: CNC Machine with built in radius compensation
Replies: 18
Views: 3778

Re: CNC Machine with built in radius compensation

Path (and CAM in general) is about calculating gcode. Cutter radius compensation is about the controller interpreting and moving those gcode coordinates. Therefore there's nothing for Path to do in this regard, (other than spitting out a G41/2 during a tool change .) This cannot be correct? G41 and...
by JanneK
Tue May 10, 2022 8:48 am
Forum: Path/CAM
Topic: Free Sinumerik 840D simulator for Path/PP development!
Replies: 1
Views: 1593

Free Sinumerik 840D simulator for Path/PP development!

The main reason to post this is to bring awareness to anyone who is interested in contributing to the Path workbench regardless of if they have a CNC to test on at home or not. Siemens offers an application called SinuTrain that consists of the actual kernel of their controller, and the free version...
by JanneK
Tue May 10, 2022 7:23 am
Forum: Path/CAM
Topic: CNC Machine with built in radius compensation
Replies: 18
Views: 3778

Re: CNC Machine with built in radius compensation

I think this is the same question/problem as I have with the Sinumerik 840D controller. Just like in LinuxCNC, the codes G41/G42 set cutter radius path compensation. Have I understood this discussion correctly that FreeCAD isn't capable of generating paths with this in mind? I.e. generating paths &q...
by JanneK
Tue May 10, 2022 7:23 am
Forum: Path/CAM
Topic: CNC Machine with built in radius compensation
Replies: 18
Views: 3778

Re: CNC Machine with built in radius compensation

I think this is the same question/problem as I have with the Sinumerik 840D controller. Just like in LinuxCNC, the codes G41/G42 set cutter radius path compensation. Have I understood this discussion correctly that FreeCAD isn't capable of generating paths with this in mind? I.e. generating paths &q...
by JanneK
Sun Apr 24, 2022 7:23 am
Forum: Path/CAM
Topic: CNC Equipment HAVE/NEED
Replies: 10
Views: 58855

Re: CNC Equipment HAVE/NEED

[HAVE] EMCO PC-MILL 125 (Sinumerik 840D).
First priority is to make sure I have a working PP. Thread-milling may be of interest.
by JanneK
Sat Feb 13, 2021 11:55 pm
Forum: Help on using FreeCAD
Topic: BaseFeature usage?
Replies: 6
Views: 1314

Re: BaseFeature usage?

Thank you for your replies. After playing some more, it looks like it does indeed work the way I had hoped it to work. It's just that my quick test to "slide a new feature right in" didn't work, because I tried adding a sketch to a face, which normally does work (should there be a differen...
by JanneK
Sat Feb 13, 2021 10:37 pm
Forum: Help on using FreeCAD
Topic: BaseFeature usage?
Replies: 6
Views: 1314

Re: BaseFeature usage?

I'm the new user. :) Thank you drmacro for initiating this. Just like openBrain & chrisb mention, my intent here is to make: * 6 sides of a cube * The base shape is a trapezoid with specific features (these features are in a prototype-phase) * The base shape may be scaled up or down down the lin...