QCAD Bugtracker

QCAD/CAM
Trial package Win installer 32 bit
Version: 3.25.2.0 (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

Regards,
CVH

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.

Hallo Andrew

It would be more than conveniant, defining the drilling locations of the drill toolpath, by selecting a circle’s center point.

Andrew,

I know that GCodeMM.js and GCodeIN.js are generic postprocessors.
Mostly used as base for other or custom postprocessor.

The distinct nature is pretty clear from the filename and the suffix in the display name.
Another distinct nature is that they include this.unit = RS.Millimeter / RS.Inch intended for the CAM side.

Why don’t they include at least a G20/21 in a generic header?

There are several more specific postprocessors where I miss these G-codes for the measurement system.

True, if they are not supported, no error messages would occur when omitted.
The danger is that users rely on build in postprocessors hoping that it matches with the default measurement system of their setup.

IMHO it is safer to trigger an instruction fault before attempting to execute a wrong motion.
As fail-save as possible should always be the goal.

Regards,
CVH

Hi Andrew

QCAD/CAM misses a hpgl.plt import. If gerber and G-code can, so should plt.

Andrew,

Unrelated to OS or QCAD version.

In the postprocessor configuration dialog there is a group box called ‘GroupCustom’.
One can add custom widgets to that, rename it and so on.

Such is not provided in CamProfileToolpathDialog.ui or CamDrillToolpathDialog.ui

It should be possible but we aren’t really able to mix up things with the ‘Message’ QLabel ...
A reserved QGroupBox would do the trick.

Related topic:
https://www.qcad.org/rsforum/viewtopic.php?f=74&t=9647

Regards,
CVH

Related forum topic:
https://www.qcad.org/rsforum/viewtopic.php?f=74&t=10468

For ‘milling’ on path it doesn’t consider

this.arcInterpolation = true

in the custom postprocessor nor the checked option in the CAM Configuration Dialog.

As far as detected the CamArcInterpolation checkbox of the CAM Configuration Dialog is unrelated to the this.arcInterpolation in the postprocessor.

Regards,
CVH

Andrew,

At present QCAD/CAM the tool drop-down box displays tool number and diameter between brackets.

It would be more appropriate to display if it is a mill or a drill and/or the description of such.
In a further stage of development ball-nose ... Conical ... And so on.

I have several specialized mills with the same diameter.
End-mills, roughing mills, routing mills, face mills ....

Tools 1(ø6mm) or 2(ø6mm) don’t say much if tool 1 is a side-mill and tool 2 is a high speed drill for metal.

Related forum topic:
https://www.qcad.org/rsforum/viewtopic.php?f=31&t=10722

Regards,
CVH

I’m often in the situation that I have to select for nesting 50+ sheets. Currently is only a Shift + left mouse click selection possible. It would be nice if QCAD/CAM could get for the nesting / sheet selection additional a mouse rectangle area selection.

Andrew,

Please refer to related forum topic:
https://www.qcad.org/rsforum/viewtopic.php?f=74&t=10724#p44206

An eighth circle with radius 8 Lead In/Out relates to nothing in the actual exported cutter trajectory.
Nor does it with the edge being cut.

Proper examples and a comparison with ‘Extension’ type Lead In/Out included.
Conclusion: IMHO connecting the cutter trajectory and edge being cut is wrong.

It looks a lot like turning on Cutter Compensation (G41/42) while the motion is circular.
But that is uncommon because most controllers can not cope with this motion.
One can increase the offset gradually along a straight pre-entry segment for turning on G41/42 but not along a circular path.
Also see snippet:
- Pre-entry C→B turning on G41
- Circular Lead In B→A

Regards,
CVH

Hallo Andrew,

I am still busy on the never ending G-code story. Doing so I wrote a small Post Processor Tutorial for all those nerds who wants to write their own. If you like it you might add it to QCAD. However, since English is not my native tongue I suggest checking it would be wise.

Meanwhile I have downloaded the source code, and could not find the CAM’s Drill-path-script. I am now using a negative Drill Cut Depth to set a Laser Dwell time, were as a field “Dwell Time (in seconds)” in the Drill-path would be more appropiate. Is this script open source available or is it part of ‘closed part’ of QCAD?

Add SPx; with x being pen number from 1-8.

TODO:
- Which color corresponds to which pen number?
- What if there are more than 8 colors in a DXF files?

Hallo Andrew,

I have revised the PWM Post Processor to Revision D.

Currently if I position one Tab (KT) to stacked profiles QCADCAM will use it on ALL in Z matching profiles. Practically in most cases would be to use tabs only on the lowest profile.

It would be nice to have some kind of control on which profile a tab has to be used.

Please refer to: https://www.qcad.org/rsforum/viewtopic.php?f=74&t=9033

Hi Andrew

A request for adding some fields to the toolpath

The inside corners of profile tool paths have rounded inside corners. This occurs because the rounded outside the bit cannot make it all the way into the corner of the feature. Think of tracing the inside wall of a cardboard box with a can of soup. The can makes direct contact with the box walls, but its
round shape is unable to completely fit into the tight corners— there’s always a gap.

In a dog-bone overcut (see the figure in attachment), the inside profile corner is enlarged into a semicircle, allowing the sharp edges of the mating piece to slide through without interference.

When a dog bone is applied to the inside corners, as shown in the second figure in the attachment, the joints fit together nicely!

The following website explains what should be implemented More elegant CNC dogbones

There are two ways to implement this tool. Either you modify the original design (as implemented in Fusion 360) or you can do it at the moment you define the tool path (Estlcam allows you to do this for example). See the feature Corner overcut, on Estlcam website

If you spot an error in the translated user interface of QCAD, please add a comment to this task or submit your translation at http://translate.qcad.org.
Thank you for your help!

Wenn Sie einen Fehler in der übersetzten Benutzeroberfläche von QCAD erkennen, fügen Sie bitte einen Kommentar zu diesem Report hinzu oder geben Sie Ihre Übersetzung ein unter http://translate.qcad.org.
Vielen Dank für Ihre Hilfe!

Si vous remarquez une erreur dans l’interface utilisateur traduite de QCAD, veuillez ajouter un commentaire à cette tâche ou soumettre votre traduction à http://translate.qcad.org.
Merci pour votre aide!

Si detecta un error en la interfaz de usuario traducida de QCAD, añada un comentario a esta tarea o envíe su traducción a http://translate.qcad.org.
Gracias por tu ayuda!

Se si rileva un errore nell’interfaccia utente tradotta di QCAD, si prega di aggiungere un commento a questo compito o di inviare la traduzione a http://translate.qcad.org.
Obrigado por sua ajuda!

Se você detectar um erro na interface de usuário traduzida do QCAD, adicione um comentário a esta tarefa ou envie sua tradução para http://translate.qcad.org.
Obrigado pela sua ajuda!

Als u een fout ziet in de vertaalde gebruikersinterface van QCAD, voeg dan een opmerking toe aan deze taak of stuur uw vertaling naar http://translate.qcad.org.
Bedankt voor uw hulp!