Should "Keep tool down" work for MillFace?

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more11
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Should "Keep tool down" work for MillFace?

Post by more11 »

I am trying to make my first gcode, planing my wasteboard.

I want to start cutting the perimeter making shure not to hit any safety switches, using "Offset pattern": "Offset".

In Pocket tab I have set "Keep Tool Down": true.

But the tool is not kept down. When I try other patterns it seems to be kept down.

Enclosed is my drawing and the gcode.

Thanks

Code: Select all

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.2.29177 +426 (Git)
Build type: Release
Branch: (HEAD detached from 0.20.2)
Hash: 930dd9a76203a3260b1e6256c70c1c3cad8c5cb8
Python 3.8.10, Qt 5.15.2, Coin 4.0.1, Vtk 8.2.0, OCC 7.6.3
Locale: Swedish/Sweden (sv_SE)
Attachments
wasteboard.zip
(27.21 KiB) Downloaded 15 times
Point taken :-)
chrisb
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Re: Should "Keep tool down" work for MillFace?

Post by chrisb »

Please don't attach zip files, but rather attach FreeCAD files and images directly. G-code can be put in code tags.

If you use Path workbench, I recommend to use 0.21, because we just got a new internal format, and using it directly is less hassle than converting old files.
And Path WB is under constant development. 0.21 is much more advanced and many errors have been eliminated.
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GeneFC
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Re: Should "Keep tool down" work for MillFace?

Post by GeneFC »

more11 wrote: Tue Jan 24, 2023 9:19 pm But the tool is not kept down.
Must be some confusion here.

Both the FCStd file and the G-code have completely flat (tool down) patterns. I tested the FCStd file with version 0.21, and I checked the G-code file with Camotics (version independent).

What is the problem?

Gene
more11
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Re: Should "Keep tool down" work for MillFace?

Post by more11 »

Simulation in FreeCAD shows the tool beeing lifted.

I will try 0.21...
Point taken :-)
GeneFC
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Re: Should "Keep tool down" work for MillFace?

Post by GeneFC »

more11 wrote: Wed Jan 25, 2023 9:51 pm Simulation in FreeCAD shows the tool beeing lifted.
I looked more closely, and yes, the tool is lifted. :oops: :oops: :oops:

The plane area is very large compared to the lift, and I overlooked the lift. :oops: :oops: :oops:

I looked into the code, and I do not think "Keep tool down" is implemented for MillFace. The GUI for MillFace is taken directly from PocketShape. The code for PocketShape uses the "Keep tool down" parameter, but the code for MillFace does not.

Gene
more11
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Re: Should "Keep tool down" work for MillFace?

Post by more11 »

Yes very embarrassing ;)

I have tested different parameters. ZigZag and Grid will keep the tool down, but they are not sensitive to the parameter "Keep Tool Down".

Changing zigzag angle in pocket will affect grid and zigzag Offset Pattern.

The 0.21 is too buggy to use. There are no changes in Keep Tool Down.
Point taken :-)
GeneFC
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Re: Should "Keep tool down" work for MillFace?

Post by GeneFC »

more11 wrote: Thu Jan 26, 2023 5:53 pm The 0.21 is too buggy to use.
In what manner?

I use 0.21 exclusively, and I find less bugs than in any previous version.

It may depend on specific operations, of course, and nobody uses all of them.

Gene
more11
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Re: Should "Keep tool down" work for MillFace?

Post by more11 »

Recreating from scratch (0.21 cannot read 0.20 files correctly) will not layout a path.
freecad-0.21.buggy.png
freecad-0.21.buggy.png (181.62 KiB) Viewed 266 times
Point taken :-)
GeneFC
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Re: Should "Keep tool down" work for MillFace?

Post by GeneFC »

Have you read about the restructuring?

https://forum.freecadweb.org/viewtopic.php?f=15&t=71610

I find that the conversion program works well.

Gene
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