Search found 22 matches

by skal
Sat Sep 30, 2023 8:20 am
Forum: FEM
Topic: FEM displacement amplification
Replies: 2
Views: 1547

Re: FEM displacement amplification

Thank you for your clarification
by skal
Tue Sep 26, 2023 1:30 pm
Forum: FEM
Topic: FEM displacement amplification
Replies: 2
Views: 1547

FEM displacement amplification

Hello, beginner in the FEM simulation, I tried to simulate a 1um displacement in a metalic part and to see material properties effects at the other side, considering resonant frequency. 1) Running a frequency analysis, I'm able to collect the eigen values: is there a way to display a graph / bar cha...
by skal
Mon Nov 08, 2021 8:50 am
Forum: Path/CAM
Topic: Using FreeCAD + PathWB for Laser cutting workflows
Replies: 11
Views: 8356

Re: Using FreeCAD + PathWB for Laser cutting workflows

I started to try the litophane workbench to convert the image to a 3D mesh, it works pretty good.
Image
I still need to deeply check the meshing granularity, as the generated file is huge for now, and a bit useless ;-)
by skal
Thu Oct 21, 2021 8:57 am
Forum: Path/CAM
Topic: Using FreeCAD + PathWB for Laser cutting workflows
Replies: 11
Views: 8356

Re: Using FreeCAD + PathWB for Laser cutting workflows

Hi all, else if I'm not as advanced as some others, I'm also trying to create path for laser cutting & engraving, I would like to provide some inputs / questions. I started from a basic (half) box example (created with laser cut interlocking workbench), with a logo on it: Box.png It can be then ...
by skal
Mon Sep 27, 2021 3:07 pm
Forum: Path/CAM
Topic: Profile compensation issue
Replies: 3
Views: 1404

Re: Profile compensation issue

2021-09-27 17_05_15-Window.png
2021-09-27 17_05_15-Window.png (2.89 KiB) Viewed 1215 times
Thanks for the clarification, it make more sense now ;-)
by skal
Mon Sep 27, 2021 7:25 am
Forum: Path/CAM
Topic: Profile compensation issue
Replies: 3
Views: 1404

Profile compensation issue

Hi, I don't if this is how it should work, but I found that when trying to profile a contour using compensation, there's a bug in the GCode generation. I created a piece 150mm*150m0*1mm that I planned to profile with a 2mm tool diameter. I have the following settings: 2021-09-27 09_16_06-Window.png ...
by skal
Tue Sep 07, 2021 4:06 pm
Forum: Path/CAM
Topic: setting up post processor arc settings for G2 commands
Replies: 11
Views: 3153

Re: setting up post processor arc settings for G2 commands

I made mistakes on my side :oops: I mixed projects from freecad 0.18 & 0.19...
I setup again my profiling operation with dressup, and it is ok now.
Still thanks for your help, the link you provided is also interesting: I was not aware of G-Code Ripper
by skal
Tue Sep 07, 2021 6:41 am
Forum: Path/CAM
Topic: setting up post processor arc settings for G2 commands
Replies: 11
Views: 3153

Re: setting up post processor arc settings for G2 commands

I guess that you are speaking about his topic: https://forum.freecadweb.org/viewtopic.php?f=15&t=42579 Which appears to be similar to my dressup issue. The conclusion is less fair: I found something: the height of the tags has an influence on the problem. I changed my height of tags and could ei...
by skal
Mon Sep 06, 2021 4:31 pm
Forum: Path/CAM
Topic: setting up post processor arc settings for G2 commands
Replies: 11
Views: 3153

Re: setting up post processor arc settings for G2 commands

Hi Chris, I didn't try to try to mill the tombstone, but it seems to be good basics for setting up a specific postprocessor. I'm using the default grbl postprocessor with G54 enabled as work coordinate systems. Setting up 4 digits within Preferences->General->Units does not seems to be enough for th...
by skal
Mon Sep 06, 2021 12:13 pm
Forum: Path/CAM
Topic: setting up post processor arc settings for G2 commands
Replies: 11
Views: 3153

Re: setting up post processor arc settings for G2 commands

Hi Gene,
I probably wrote a confusing sentence : when I wrote that I generated a dressup, it was using freecad ;-)
The $12 setting of the machine is the Arc Tolerance (mm) which is usually set to 0.002 mm.
Your alternative sounds good, but where can I set up the 4 digits precision for arcs ?