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QCAD - 2D CAD System.

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IDCategory  ascTask TypeSeveritySummaryStatusProgress
 1398 QCAD/CAMBug ReportLow Duplicate zoom buttons in toolbar and menu Closed
Task Description

I am seeing duplicate zoom buttons in the View toolbar, and also under the View menu. Under Application Preferences→General→Tool Settings there are also multiple entries for these, with Shortcuts and Commands highlighted in red (means there are conflicts?). This is the QCAD/CAM version on Linux 32-bit Debian “testing” release. I also tried the same version on Windows 7 64-bit and am not seeing this issue. Screen shots attached.

 1465 QCAD/CAMBug ReportCritical Circle is drawn as polygon Closed
Task Description


I have a circle and circle is not round.
Unit of drawing is in metres and radius is set to 2.38.
The circle displays as a polygon instead.

 1467 QCAD/CAMBug ReportLow Short leader will not render the arrow Closed
Task Description


I tried to add a leader and for some reason the arrow does not appear. I found out that this occurs when the line is short. To me, line is sufficiently long enough but somehow QCAD thinks it is too short.

Screenshot shows added leader.

Also when I try to change arrow: no to “yes”, while the dropdown shows yes, I am not able to select it. It just defaults to no.

Draw longer line.

 1483 QCAD/CAMBug ReportLow Draw -> Polyline -> Create from Segments deletes a segm ...Closed
1 Task Description

With the attached DXF file, select Draw → Polyline → Create from Segments
(O, G) and click on the complex polyline inside the circle (eg on
the top left arc). Apolyline is created with a few segments,
and one or more segments are deleted!

Different segments are deleted depending on which segment is clicked.

 1512 QCAD/CAMBug ReportLow CTR command is not working Closed
Task Description

1) Tool Circle WC
2) CTR circletangent2radius

This doesn’t work between two circles !
I can make a circle that touches a line and a circle.
But I can NOT make a third circle with a given radius that touches two other circles.

All the other commands in this menu are working properly, can someone help me out ?

 1538 QCAD/CAMBug ReportLow CAM not use the shortest way Closed
Task Description

ich habe ein Linien Gitter in QCAD erstellt und dann mit CAM Export eine NC Datei erstellt.
Im CAM Simulator sieht man dass der GCODE Postprozessor nicht den kürzesten Weg verwendet.
Anbei folgende Dateien :
CAM_TEST_LINIEN.dxf, CAM_TEST_LINIEN.nc, CAM_TEST_LINIEN.log und eine Bilddatei CAM_TEST_LINIEN.png hier kann man sehen wie die Eistellungen für die GCODE Erstellung sind.

 1564 QCAD/CAMBug ReportMedium QCAD/CAM: black main window or main window not painted  ...Closed
Task Description

QCAD/CAM version (snapshot release)

QCAD/CAM version for Ubuntu Linux starts up with a totally black screen with only the title bar showing. By clicking around at the top of the screen I can get the menus to drop down and appear over the blank black screen. That is how I captured all the version information below. QCAD/CAM version: for Ubuntu Linux starts with all the normal screen graphics appearing normally. I labeled this bug report as critical because QCAD/CAM is unusable on Ubuntu Linux, but for me it is not so critical since I can use the Windows version.

QCAD version:
Date: Mar 22 2017
Qt version: 5.8.0
Compiler version: gcc 4.8.1
Build Date: Mar 22 2017
Revision: 17a80fac27c3ae6aa68cd4ee15ffa4f3e2ab0a9a

Architecture: x86_64
OS: Linux
OS version: Unknown

QCAD locale: en
Name: en_US
Country: 225
Country name: United States
Language: 31
Language name: American English
Script: 7
Script name: Latin
Decimal point: 46
Negative sign: 45
Positive sign: 43
Text direction: 0
System codec: UTF-8

Arguments: /home/dave/opt/qcadcam-

Description=CAM tools.
PurchaseURL=http://ribbonsoft.com/add-ons/qcadcam-purchase QtVersion=5.8.0
[email protected]=:/scripts/Cam/[email protected]
URL=http://ribbonsoft.com/add-ons/qcadcam Version=

Name=QCAD Pro
PurchaseURL=http://ribbonsoft.com/add-ons/qcadpro-purchase QtVersion=5.8.0
URL=http://ribbonsoft.com/add-ons/qcadpro Version= (Teigha®

Description=Import/export support for the DXF format. Based on dxflib.
URL=http://www.qcad.org Version= (dxflib

Description=OpenGL ES 3D display.
Name=QCAD Pro
PurchaseURL=http://ribbonsoft.com/add-ons/qcadpro-purchase QtVersion=5.8.0
URL=http://ribbonsoft.com/add-ons/qcadpro Version=

Description=Integrated help browser.
Name=QCAD Pro
URL=http://www.ribbonsoft.com Version=

Description=Polygon clipping, boolean polygon operations, path offset.
Name=QCAD Pro
PurchaseURL=http://ribbonsoft.com/add-ons/qcadpro-purchase QtVersion=5.8.0
URL=http://ribbonsoft.com/add-ons/qcadpro Version=

Description=QCAD Professional tools.
Name=QCAD Pro
NamePostfix= Professional
PurchaseURL=http://ribbonsoft.com/add-ons/qcadpro-purchase QtVersion=5.8.0
URL=http://ribbonsoft.com/add-ons/qcadpro Version=

Description=Polygon triangulation.
Name=QCAD Pro
PurchaseURL=http://ribbonsoft.com/add-ons/qcadpro-purchase QtVersion=5.8.0
URL=http://ribbonsoft.com/add-ons/qcadpro Version=

[email protected]=ibus

 1585 QCAD/CAMBug ReportLow hide/show layer delay Closed
Task Description

Hi !
i’m trying the new qcad/cam 3.17.1 and i have a delay when i hide and show a layer..
(linux MINT 17.2 x64)

The function is working, but the layer will hide (and show) with a delay from click on the apposite button.

The qcad 3.16.7 DON’T have this problem.. when you click on button immediately the layer disappear/show..

 1593 QCAD/CAMBug ReportLow CAM > CAM Export: ZH in header always yields default va ...Closed
Task Description

See also:

 1646 QCAD/CAMBug ReportMedium 3.18 has a HATCH issue Closed
Task Description

If you pres the “hatch icon” then the word “hatch” appears in the command window, but. . . nothing happens.

But if you type “hatch” followed by “enter” then finally the Hatch Window pops up.

 1685 QCAD/CAMBug ReportLow LinuxCNC no longer works under CAM Legacy Export  Closed
Task Description

On any version newer than 3.18.0 the LinuxCNC options under “Configuration” drop-down no longer work under CAM→CAM Legacy Export. As you can see in the attached screen shot, the menu line which would normally contain LinuxCNC is blank. Also, when LinuxCNC (Inch) and LinuxCNC (Millimeter) are selected, none of the Global or per-Layer options are available, it just says “No Global Options” and “No Layer Options” as you can also see in the screen shot. I think this is because both of these are derivatives of the main LinuxCNC configuration which is not working.

I have confirmed this problem with fresh installs (using the installer) on both Windows 10 and Debian testing

 1799 QCAD/CAMBug ReportVery Low Postprocessor: sign not forced for negative values roun ...Closed
Task Description

formatValue returns “0” instead of “+0” for negative values that round up to 0 with the configured decimals.

 1803 QCAD/CAMBug ReportLow CAM configuration output unit fixed in inch instead of  ...Closed
1 Task Description

Ij window CAM Configuration output unit appears as inch instead of mm. All parameters are in option
when create a nc file,units are in inches not in mm. unsuable and not possible to change

 1812 QCAD/CAMBug ReportLow Coordinate display: coordinates not updated while mouse ...Closed
Task Description

The coordiantes (in the lower left corner) freeze while mouse is moving. Updates as soon as the mouse is stopped.

This slows me down considerably. I have to stop, wait (too see the coordinates), move, stop, wait, move back, stop, wait, move, stop wait... This gotta be a bug?

MacOS 10.12.6

 1813 QCAD/CAMBug ReportLow CAM Export: missing G01 Closed
Task Description

Trying the EleksMaker EL01 Laser router I noticed some bugs in creating pathways, rapids, tolerance and homing.

See the attached pdf

 1814 QCAD/CAMBug ReportLow FS#1813 Revisited Closed
Task Description

 FS#1813  Revisited. (Several bugs in QCAD/CAM 3.21.3. when generating G-code in “G-code Laser (offset).)

Hi Andrew,

After closing the bug notification I realised I didn’t add the DXF. My apologies for not attaching the DXF-file at hand.

Fortunately I am not the only one;

You can fix the missing G01 by replacing your file postprocessors/GCodeLaserOffsetMM.js with the attached updated file.

Since it was not attached, that makes two of us.

Anyway I have attached the DXF-file to be tested.

 1816 QCAD/CAMBug ReportLow TAB function in CAM module fails  Closed
Task Description

When using (adding a TAB on a radius fails).


When length of the TAB is set to 1 mm.

After export to *.nc code the code is not ok.

And then check this is NC viewer or gcode sender the length is not set to 1 mm but is smaller.

On a line this function (TAB) is correct working.

 1817 QCAD/CAMBug ReportLow CAM Export: offset fails for contours with arcs (tolera ...Closed
Task Description

After regenerate selected toolpath OR regenerate all toolpath.

The result of the output is every time different.

When pushed for example 2 or 3 times this button.

See pictures

 1820 QCAD/CAMBug ReportMedium CAM Export: exporting text entities broken Closed
Task Description

Hi Andrew,

Kubuntu, QCAD/CAM 3.21.3

Font Standard. Selected as ‘single line’ font for engraving with mill or laser.

While CAM Exporting as G-code Laser (Offset) MM, or as Linux CNC, Exporting gets trapped in a loop.

In Font Standard the glyph’s ? & $ @ s S Q and 2 contains unwanted Z-movements. It seems these glyphs entities are not alligned properly; endpoint last line does not meet startpoint next line; why else the Z-movements?

Could this misallignment also traps Exporting?

1843QCAD/CAMBug ReportLowCreating ToolPath StallsAssigned
Task Description

Hi Andrew,

Still working with and on CAM HPGL for the HP7580 pen plotter.

I have added a penplotter test drawing, that might be used for testing en callibrating plotter and pens. You may add it to the Examples-directory.

QCAD has a lot of trouble creating toolpaths and exports. Much too often it shuts itself down, or gets stalled. Why? I am not sure.

1847QCAD/CAMBug ReportLowBUG MEMORYAssigned
Task Description

Hi Andrew,

Still working on creating HPGL.PLT toolpaths for the HP7580 pen plotter. QCAD has some trouble creating toolpaths. Too often it shuts itself down, or the PC gets stalled.

Recreating the same error however is possible

 1850 QCAD/CAMBug ReportLow Toolpath error Closed
Task Description

Hi Andrew,

While generating a toolpath I stumbled upon an odd error.

 1907 QCAD/CAMBug ReportLow having issues importing and opening dxf files  Closed
Task Description

can not import dxf files

 1912 QCAD/CAMBug ReportLow Tool Description Error Closed
Task Description

Hallo Andrew,

Testing the drill toolpath I find it hard to select the correct tool by a small bug

1913QCAD/CAMBug ReportLow3D Simulation Behaves oddAssigned
Task Description

Hallo Andrew,

testing the drill toolpath I used single point markers.

In 3D simulation the tool drills the toolpath AND uses the drill as a mill.

Cam Export and generated G-code is not effected.

 1946 QCAD/CAMBug ReportLow CAM > Cam Legacy Export: Cut inner paths before outer p ...Closed
Task Description

The option “Cut inner paths before outer paths” is ignored, causing trouble when outer paths are cut first.

Attached is a link to the script files and gcode examples.

 1962 QCAD/CAMBug ReportLow CAM > Drill Toolpaths: Cannot be edited / updated from  ...Closed
Task Description

Hallo Andrew,

Found a bug in the drill toolpath generator.

 1963 QCAD/CAMBug ReportLow Bug Font Standard OR Cam Config Closed
Task Description

Hallo Andrew

Confronted with a bug in font Standard glyph ”s” (small S),
and a solution.

 1967 QCAD/CAMBug ReportLow Development snapshot: Toolpath generator problem Closed
Task Description

Hallo Andrew,

I had updated QCAD/CAM to and I am confronted with a major bug in the toolpath generator.

1971QCAD/CAMBug ReportLowCAD/CAM 3D SimulatorAssigned
Task Description

Hallo Andrew,

Found a bug in the 3D Simulator execution

 1992 QCAD/CAMBug ReportLow Regenerate All Error Closed
Task Description

Hallo Andrew,

I experienced some odd behaviour when using a final Regenerate All before an Export.

 1997 QCAD/CAMBug ReportLow CAM > CAM Export: Fails for new document created Closed
1 Task Description

When I create a simple drawing, I cannot export the gcode until I restart qcad.

general steps to reproduce the issue:
1. open a new drawing
2. Add a letter “D” near the origin in Arial font, about 7mm tall.
3. explode it
4. save the drawing
5. Fill in in the “cam configuration” 6. Select the drawing and generate the tool paths.
7. Hit the “export button” or the menu item.
8. Observe that you see the “camexport” command appears in the command section, but there is no file generated for the gcode.

If you restart qcad, then the gcode will export as expected. Also, it appears to work for more complicated drawings. I had the same issue, when I tried to generate the same thing, but using the string “November 2019” at 5mm height. I am using up to date MX Linux with kernel version 4.19.0. I also observed this behavior under Windows 10 professional.

 2000 QCAD/CAMBug ReportLow CAM > Nesting: misleading "Sheet added" confirmation Closed
Task Description

Within the nesting preparation:
A left mouse click to add a sheet will always be confirmed with “Sheet added”, regardless of a proper selection or where the left click is done in Model_Space.

 2001 QCAD/CAMBug ReportLow CAM > Nesting: Alignment fails Closed
Task Description

Description for the CAM Nesting alignment:

Alignment: Parts are arranged with the chosen alignment in mind. An alignment of “Left - Bottom” means that parts are shuffled to the left (primary alignment) and towards the bottom (secondary alignment).
Quote end

I tested a few scenarios. e.g
a Top Left, Align → leads to a top right alignment,
a Top left, Hull → leads to a Bottom Left alignment,

 2003 QCAD/CAMBug ReportLow QCADCAM Crashes when starting up Closed
Task Description

I am trying to run the QCADCAM v3.23.0 64 bit version under Windows 10 x64. When I start the program, I get the splash screen showing it loading all of the plugins. When it gets to around 67% (Gerber stuff), the program crashes. I get the following exception:

Unhandled exception at 0x00007FFC5F51C706 (MxMGLV64.dll) in qcad.exe: 0xC0000005: Access violation reading location 0×0000000003304318. occurred

I also loaded the 64 bit version of just plain QCAD and it works with no problems.
I also tried loading the 32 bit version of QCADCAM and while it does not crash, it does not display any of the menus, toolbars, or toolboxes. it displays only a black screen with the title bar.

 2024 QCAD/CAMBug ReportLow CAM > Nesting: Nesting blocks with multiple parts fails Closed
Task Description

Nesting quantity all test: 3

Nesting block2 = works
Nesting block1 = fails (placed outside sheet),
Nesting both blocks = fails (placed partly outside sheet),

 2025 QCAD/CAMBug ReportLow Set Nesting Quantity shows wrong quantity Closed
Task Description

If I set “Set Nesting Quantity” to e.g. 5 it will remember this number within the session.
If I need to check which number I’ve used last time there is no way to find the actual used value - it will show me always 1.
If I restart QCAD/CAM the value is completely lost and the nesting tool tries to fit in as much as possible into the sheet - regardless that the quantity number still shows one.

It would be nice to have a remember function even after restarting QCAD/CAM and have some kind of possibility to see the last used value.

 2028 QCAD/CAMBug ReportLow CAM > CAM Export: Fails for new document created Closed
Task Description

1. Load drawing
2. Create new drawing
3. Add toolpath / tool
4. CAM > CAM Export

Fails to identify current config (post processor).

 2033 QCAD/CAMBug ReportLow Repeated warning message while updating toolpath Closed
Task Description

While updating or regenerating toolpath on the attached dxf file I repeatedly get the warning message in the attached jpg file. If I keep clicking OK then the toolpath is successfully generated. This did not happen in version 3.23.0 with the same file.

 2055 QCAD/CAMBug ReportLow RTF text formatting not supported Closed
Task Description

If any text in a dxf file use RTF formatting for their fonts, the RTF code is not decoded and the text ends up showing the entire RTF code instead of just the intended text.
Most other editors (Draftsight, Autocad, Powerdraft) support the RTF codes which makes importing files from those editors problematic. See attached file for an example.

 2079 QCAD/CAMBug ReportLow Full screen mode (F11) - Menu / drop down menus not wor ...Closed
Task Description


2167QCAD/CAMBug ReportLowComma format decimal separator fails ZSafety CAM config...Assigned
1 Task Description

Trial package Win installer 32 bit
Version: (3.25.2)
Internet: QCAD.org
Build Date: Sep 4 2020
Revision: 4a61501
Qt Version: 5.13.2
Architecture: i386
Compiler: Unknown

Local decimal separator is ‘,’ (comma)
In CAM configuration .. Z Levels .. Safety level

Using nn,nnn the output is Nxx G0 Znn
Using nn.nnn the output is Nxx G0 Znn.nnn

Drop down boxes are all in dot format.
Didn’t try anything else yet ;-)


 2232 QCAD/CAMBug ReportLow Nesting fails when parts fit plus minus null on sheets Closed
Task Description

Just lost a detailed report (token?)- now a short version!

Nesting fails when parts fit plus minus null on sheets. My parts should fit regarding to the measurements on a sheet multiple times. The nesting tool can’t find a solution.

Options are:
Quantity multiplier: 0
Rotation: 4
Sheet margin: 0
Margin: 0
Tolerance: 0

If I modify the parts and make them slightly smaller then a nesting is done as expected. Did I miss something?

 2234 QCAD/CAMBug ReportLow CAM > Nesting: Cancel button not working Closed
Task Description

Clicking cancel button only hides dialog but does not stop nesting. Escape key works as expected.

 2241 QCAD/CAMBug ReportLow CAM Simulation: stops working after closing a file Closed
Task Description

See also:

 2250 QCAD/CAMBug ReportLow CAM > Add Profile Toolpath: lead out type / size not sa ...Closed
Task Description

Lead out type and size are not respected (signals blocked and not unblocked).

 1003 QCAD/CAMFeature RequestLow QCAD Community Edition: add unicode support for layer n ...Closed
Task Description

Community version (still on FBSD only), so dxflib. I suspect the culprit is dxflib.

I have created layers and blocks and whatnot with (hungarian) accented characters in their names.
Apparently (according to the Internet, as evidenced probably most glaringly by usa.autodesk.com /adsk/servlet/ps/dl/item?siteID=123112&id=7586582&linkID=9240617) the R15 DXF version assumes single-byte character sets being used. Quick grepping the DXF2000 mentions “String (255-character maximum; less for Unicode strings)” (Group Code Value types), so it may be a false track...

Anyway, the DXF file written does have strings converted to single-byte encoding, but it seems it’s always ANSI-1252. When the output encoder encounters a character that is not representable in this one, it will use a literal question mark.

Actual case, I have a block with the name

106 egypólusú váltókapcsoló jelzőfénnyel

Of this, “ő” (U+0151) is not representable in ANSI-1252, so what gets written to the dxf is (non-ASCII shown in hex)

106 egyp<f3>lus<fa> v<e1>lt<f3>kapcsol<f3> jelz?f<e9>nnyel

Note the literal question mark.

Now the problem is this is an irreversible operation but the result is perfectly valid ANSI-1252, so upon opening the file again, I will get a block named

106 egypólusú váltókapcsoló jelz?fénnyel

IMHO the ideal resolution is to

  1. Have a preference for the export code page (and use it, too, circumstances permitting)
  2. Iff this is not set (or set to a default “Use system locale to determine” or something), use a look-up table to take a good guess (like old QCAD2 qcadlib/src/engine/rs_system.cpp:QCString RS_System::localeToISO())
  3. If the output encoder encounters a character that is not representable in the target code page, throw an error with an option to ignore the error (and keep using question marks, but then this must have been acknowledged by the user so not silent problem anymore), pick a new output code page, whatever else

This all assuming the R15 doesn’t actually depends hardly on ANSI-1252 and ANSI-1252 only. In that case, option #3 would still be nice.

Most Western European languages (and English) are not affected by this as ANSI-1252 has most of them covered, but a little to the east, a little to the south, a little to the north, and it does make a bit of a difference :)

 1142 QCAD/CAMFeature RequestLow Distance Entry in "Feet and Inches" Closed
1 Task Description

I use architectural units everyday in QCAD and would appreciate being able to enter feet and inches from the “command line” for convenience and accuracy.

I have been entering “calculations” to arrive at the distance values (i.e. 10*12+6.125 = 10’-6 1/8”), but this method is time consuming and prone to input error.

I would like to see Acad’s architectural distance method implemented in QCAD. This entry method would replace the “calculated” entry with (as an example): 10’6-1/8.

Command Line: Next point: 10’6-1/8
The <’> mark triggers a 12 times multiplier for the proceeding number,
the next number is the whole inches and
the ↔ is a separator that adds the fraction to the whole inches before it.

Thanks for considering this feature request. I’m certain that many QCAD users in the Architectural, Mechanical, Electrical and Construction professions wold appreciate this convenience (especially those moving past Acad).

 1418 QCAD/CAMFeature RequestLow Layerlist and hidden sublayer Closed
Task Description

The layerlist shows at any operation all sublayer, even if they were previously hidden!

1815QCAD/CAMFeature RequestLowAdd Laser tool optionAssigned
Task Description

Hi Andrew,

Creating G-code for cnc-laser, the laser-tool can not be correctly set at all.

Attached a laser tool proposal

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