Good afternoon
Some came across a good tutorial for QCAD/CAM and FluidNC or similar GRBL machines?
What does the CAM output of QCAD expect from the machine state?
Homed and zero positioned at the workpiece origin?
Switched to another coordinate system with machine to workpiece offset?
The QCAD/CAM docs are just way unusable, at least for...so now I'm sticking with just QCAD and use SheetCAMTNG for the time being.
thanks in advance
richard
QCAD/CAM and FluidNC
Moderator: andrew
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Always indicate your operating system and QCAD version.
Indicate the post processor used.
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Always indicate your operating system and QCAD version.
Indicate the post processor used.
Attach drawing files and screenshots.
Post one question per topic.
Re: QCAD/CAM and FluidNC
Hi,
Simply said: The CAM origin is the drawing origin.
Or meaning that (0.0, 0.0) in CAD is where you zeroed the CNC machine.
QCAD/CAM has no method to move the origin ... But everything can be translated relative to the drawing origin.
Homing is something between the physical machine and the logical position of your driver.
Usually only required on power up or between jobs.
Once that is establish one can zero the machine at any point that can be reached.
For milling/engraving it is very common to set the Z-zero at the surface of the substrate.
Regards,
CVH
Simply said: The CAM origin is the drawing origin.
Or meaning that (0.0, 0.0) in CAD is where you zeroed the CNC machine.
QCAD/CAM has no method to move the origin ... But everything can be translated relative to the drawing origin.
Homing is something between the physical machine and the logical position of your driver.
Usually only required on power up or between jobs.
Once that is establish one can zero the machine at any point that can be reached.
For milling/engraving it is very common to set the Z-zero at the surface of the substrate.
Regards,
CVH
Re: QCAD/CAM and FluidNC
Think I got it now (o;
Played around with the FluidNC console...
So basically the CAM starts at 0,0,0 and I home the machine, manually jog it to the start position of the workpiece (left, front and top) and then use G10 to set the working position to 0,0,0.
Played around with the FluidNC console...
So basically the CAM starts at 0,0,0 and I home the machine, manually jog it to the start position of the workpiece (left, front and top) and then use G10 to set the working position to 0,0,0.
Re: QCAD/CAM and FluidNC
That sounds right, G10 sets the CNC origin.
Remind that a CNC driver can usually handle more than one coordinate system.
In my case that is G10L2P1 ... G10L2P9 with a coordinate entry for every axis (e.g X0Y0Z0 or even values for A, B and/or C).
Activated by G54 ... G59, G59.1 ... G59.3
A CNC driver can also exploit G92 to alter the current position coordinates.
In my case 'Zero All' is equal to G92X0Y0Z0 meaning: Set the current position in XYZ to all zero.
Regards,
CVH
Re: QCAD/CAM and FluidNC
Right....
G92 might be the much better choice in my case as it is temporary...
G10 offsets are stored permanently in FluidNC..and therefore I might forget about it the next time (o;
FluidNC states about G92 though: "It is left over from the hand coding days."
OTOH that's what I will mostly do..hand coding (o;
G92 might be the much better choice in my case as it is temporary...
G10 offsets are stored permanently in FluidNC..and therefore I might forget about it the next time (o;
FluidNC states about G92 though: "It is left over from the hand coding days."
OTOH that's what I will mostly do..hand coding (o;