Project SAVE fails, I must delete Geometry File, then Project SAVEs just fine

[Robert H]

FlatCAM Evo Unstable BETA - 64 bit
Windows 10 Home 64-bit, Version 22H2, OS Build 19045-3570
Python 3.9.10

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I added a drill file for 2 slots under a potentiometer, then:

• Properties
• Utilities
• Entered Slot Diameter (0.8mm Endmill, 1.1mm Slot, Cut Z=-2mm,Multi-Depth=-0.1mm)
• Clicked Mill Slots
• entered Milling data as usual for Milling

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I generate the Geometry File, I can SAVE the Project properly.

I generate the CNC job; I cannot SAVE the Project. I get a red message FAILED in bottom left of the FlatCAM window and this in Powershell; “Failed to serialize file before compression ,… because out of range float values are not JSON compliant”

If I delete that new CNC job, the Project SAVEs properly.

Robert

EDIT:
Yellow : Top layer

Green : Bottom layer, mirrored vertically

Red : Holes, mirrored vertically

[Marius Stanciu]

Hi Robert,
I need to replicate this behavior. Can you simplify the whole process enough and provide the minimum files so that I can reproduce it?
BR,
Marius

[Robert H]

(alignment and tabs seriously messed up in this reply, deleting, and posting a 2nd time)

Here you go. :)

I was able to reproduce by importing this excelon file from KiCAD into a blank project.

M48
; DRILL file {KiCad 7.0.8} date Wed Oct 25 19:57:07 2023
; FORMAT={3:3/ absolute / metric / keep zeros}
; #@! TF.CreationDate,2023-10-25T19:57:07-04:00
; #@! TF.GenerationSoftware,Kicad,Pcbnew,7.0.8
; #@! TF.FileFunction,Plated,1,2,PTH
METRIC
; #@! TA.AperFunction,Plated,PTH,ComponentDrill
; #@! TA.AperFunction,Plated,PTH,ComponentDrill
T01C1.100F050S15
%
G05
T01
G00X011900Y010425
G01X012600Y010425
G00X021400Y010425
G01X022100Y010425
M30

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• Properties, Utilities, click on Tool in Tool Table, Milling Diameter=0.8, Mill Slots.
• Milling, C2, Cut Z=-2, Multi-Depth=.1, Preprocessor=GRBL_11_no_M6, Generate CNCjob.
• SAVE project, fails.

(contd)

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[Robert H]

Powershell

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[Robert H]

Crap, forgot:

Python 3.9.10

[Robert H]

Updates to original post:

• added a ZIP of the generated CNCjob,
• added Python version,
• cleaned up alignment a bit (I didn’t know it would generate a message each time I’d clean that up)..

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[Marius Stanciu]

Hi Robert,
Reported problem is confirmed.
Using the provided data I have fixed the issue in the latest commit here: https://bitbucket.org/marius_stanciu/flatcam_beta/branch/Beta_8.995
Thank you for reporting the issue.
BR,
Marius

[Robert H]

AWESOME! It worked just fine.

Thanks Marius!
:)

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