DDCSV1.1 4 Axis controller

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KevJ:
Hi all,

Firstly, I'd like to thank the guys who've put in the effort to improve the software on this controller.

I've ended up here with a similar problem to Merc's. I ran his code in a sim and it works (three tabs on the bottom of the parts), however I agree that it is nothing like the process shown in the video.
The issue I'm having (with updated pandora version as well as previous) is that when i ramp in on a profile, it sometimes starts in the wrong place.
As with Merc's code, when I run it in sim it looks fine but on the machine with the DDCSV1.1 controller it just does it's own thing. This same code works fine on my other machine.
This seems to have something to do with ramping down on an arc.

I've worked around this by doing a straight plunge at the start of the profile, however this will only work for some parts.
I've attached gcode and a photo of a cut (I stopped it when it was apparent it had gone wrong)

Any suggestions would be appreciated.

Regards,

KevJ

Benedikt:
:update:
Here's a big update for PandoraInstaller. It is now capable of installing multiple firmware versions.
There have also been some various bug-fixes.
The factory firmware, as well as the modded firmware can now be installed.

It can be downloaded from here: http://dl.pandora-cnc.eu/utils/installer/PandoraInstaller_20171130_v13.exe

And here are some screenshots of the new version:

Best regards,
Benedikt

chriscnc:
Merc and Kevn,

You have your G code set for 3 axis arc interpolation. look at your Gcode see the Z move on a G03 line. This controller only supports interpolated arc move on a single plane at a time ( this is pretty common). most controllers till the very late 90's started to offer interpolate arcs on 3 axis. This is a setting in your post processor to restrict arcs to a single plane like x/y per line. Don't be mistaken, this controller can make perfect 3 axis helix moves. Its just the way the post processor handles the code by mixing G01 with G03 moves, the motion of the machine is no different and super smooth as the controller can prosses code with lookahead very fast. Just select no helix moves in your post processor, it will still helix, just won't use a G03 with a Z on the same line. Long story short, Gcode is correct for a different controller, that's why it will work in simulators and some other controllers. you simply have the wrong post processor for this controller. look at the postprocessor file and look for helix allowed and or arc interpolation planes allowed making sure its set to 1. Look at the screenshot of the fusion 360 post.

KevJ:
Thank you for your quick response Chris,
I'll take a look at the cam post today and see if I can make the change.

Regards,

KevJ

Will_D:
Many thanks to all. I think all my funny problems (see my earlier posts) were caused by my parameter settings.

Installing the 2016 version which reset the parameter file to factory solved the problems:

Made minor tweeks to suit my steppers and it works!

Now installed the 16 04 2017 version and all is fine. Parameters not affected and it works fine.

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