Downgrade to stable version by directly specifying area515 as a parameter to start.sh

sbryan commented 9 years ago

I've recently been using CWH with one of first Draken DLP/SLP printers delivered to a backer (/me) and was encountering lots of "Internal Server Error" problems when trying to manually create printer configurations in /root/3dPrinters/...

Here's the scenario... The printer has 8 physical projector positions that it can be mounted in, ranging from 1 being the closest to the resin VAT and 8 being the furthest. Obviously (or maybe not?), the closer to the VAT, the finer the resolution of the XY but the smaller the build area.

As such, the (Draken developers) provided a set of pre-defined CW Machine profiles (.machine files) for each of the positions... awesome! They also provided a slicing profile (.slicing file). So, to effectively make print resolution selection easier, I wanted to have 8 "printers" in the CWH web interface, from which I can pick the one for the current projector position. To that end, I created the following set of configs:

/root/
├── Machines/
│   ├── 1st_37X37microns.machine
│   ├── 2nd_43X43microns.machine
│   ├── 3rd_50X50microns.machine
│   ├── 4th_61X61microns.machine
│   ├── 5th_70X70microns.machine
│   ├── 6th_75X75microns.machine
│   ├── 7th_82X82microns.machine
│   └── 8th_90X90microns.machine
├── Profiles/
│   └── BasePrintProfile.slicing
└── 3dPrinters/
│   ├── Draken_slot1_37microns.printer
│   ├── Draken_slot2_43microns.printer
│   ├── Draken_slot3_50microns.printer
│   ├── Draken_slot4_61microns.printer
│   ├── Draken_slot5_70microns.printer
│   ├── Draken_slot6_75microns.printer
│   ├── Draken_slot7_82microns.printer
    └── Draken_slot8_90microns.printer

Within each of the above defined *.printer files, the <MachineConfigurationName> value matched one of the *.machine file names and the <SlicingProfileName> value all pointed to the same, single file, BasePrintProfile.slicing.

Unfortunately, I could never get this to work... I always ended up with the "Internal Server Error" message, and looking in log.err, I could see that the requested service URL was raising an exception about service URL not found (I don't remember exactly, and my logs have since been replaced :( )

The only way I could get things to work were if I created one *.slicing file for every *.machine file. All *.slicing files were identical (in fact, I didn't test it, but I suspect symbolic linking them could have worked). So, here is what I ended up with that was the only way I could get things to work:

/root/
├── Machines/
│   ├── 1st_37X37microns.machine
│   ├── 2nd_43X43microns.machine
│   ├── 3rd_50X50microns.machine
│   ├── 4th_61X61microns.machine
│   ├── 5th_70X70microns.machine
│   ├── 6th_75X75microns.machine
│   ├── 7th_82X82microns.machine
│   └── 8th_90X90microns.machine
├── Profiles/
│   ├── 1st_37X37microns.slicing
│   ├── 2nd_43X43microns.slicing
│   ├── 3rd_50X50microns.slicing
│   ├── 4th_61X61microns.slicing
│   ├── 5th_70X70microns.slicing
│   ├── 6th_75X75microns.slicing
│   ├── 7th_82X82microns.slicing
│   └── 8th_90X90microns.slicing
└── 3dPrinters/
│   ├── Draken_slot1_37microns.printer
│   ├── Draken_slot2_43microns.printer
│   ├── Draken_slot3_50microns.printer
│   ├── Draken_slot4_61microns.printer
│   ├── Draken_slot5_70microns.printer
│   ├── Draken_slot6_75microns.printer
│   ├── Draken_slot7_82microns.printer
    └── Draken_slot8_90microns.printer

So this got me looking into the code, and I believe I've found the root cause...

In resinprinter/server/HostProperties.java:366 I believe the call to getMachineConfigName() should instead be a call to getSlicingProfileName(), resulting in the following corrected line of code:

configuration.setSlicingProfile((SlicingProfile)jaxbUnMarshaller.unmarshal(new File(PROFILES_DIR, configuration.*getSlicingProfileName()* + PROFILES_EXTENSION)));

Otherwise, if the intention is to actually ignore the <SlicingProfileName> entry in the *.printer files, we ought to document this someplace.