This post is to share how I (try to) use cura with a da Vinci Jr. 2.0.
Since january 2020, some 3D printers from XYZPrinting can received gcode from cura (nano Series: da Vinci nano, da Vinci nano w, mini Series: da Vinci miniMaker, Vinci mini w, Vinci mini w+, Jr. Series: da Vinci Jr. 1.0, da Vinci Jr. 1.0 w, da Vinci Jr. 1.0 3-in-1, Pro Series: da Vinci Jr. 1.0 Pro, da Vinci Jr. 1.0 A Pro, da Vinci Jr. WiFi Pro), but not the da Vinci Jr 2.0 Mix.
The Jr 2.0 Mix is strange, with one extruder and 2 spools
I would like to use cura because :
- I would like to have choices for my slicer, and not locked with the XYZWare software
- I would like to have more choices for infill types
What I've lost :
- the simple software XYZware, which works out of the box
- the change of mixing the 2 spools inside one item. I can have only one mix for each item (sample : item 1 with 10% spool #1 and 90% spool #2 from bottom to the top). A cura plugin could be developt for that, I think.
- the display of the time during the printing phase, on the printer.
I've read the amazing "print gcode files to miniMaker" ( http://www.soliforum.com/topic/17028/pr … minimaker/ ), and I've adapted the code for my 3D Printer.
I’ve modified the following lines :
diff --git a/miniMoverLib/xyzv3.cpp b/miniMoverLib/xyzv3.cpp
index 3a217f9..6e27d84 100644
--- a/miniMoverLib/xyzv3.cpp
+++ b/miniMoverLib/xyzv3.cpp
@@ -38,7 +38,7 @@
// uncomment to force wifi connections to close between messages
//#define CLOSE_ON_WIFI
-const char *g_ver = "v0.9.6 Beta";
+const char *g_ver = "v0.9.6 Mix2";
const XYZPrinterInfo XYZV3::m_infoArray[m_infoArrayLen] = { // File parameters Machine capabilities
// modelNum, fileNum, serialNum, webNum, IsV5, IsZip, comV3, tmenu, hbed, dExtr, wifi, scan, laser, len, wid, hgt, screenName
@@ -569,7 +569,7 @@ void XYZV3::parseStatusSubstring(const char *str)
break;
case 'p': // printer model number, p:mn - model_num
- //p:dv1MX0A000
+ //p:dv2JW0A000
sscanf(str, "p:%s", m_status.pMachineModelNumber);
m_info = XYZV3::modelToInfo(m_status.pMachineModelNumber);
break;
@@ -2984,7 +2984,7 @@ bool XYZV3::encryptFile(const char *inPath, const char *outPath, int infoIdx)
info = XYZV3::indexToInfo(infoIdx);
#ifdef _DEBUG
if(!info)
- info = XYZV3::modelToInfo("dv1MX0A000"); // miniMaker
+ info = XYZV3::modelToInfo("dv2JW0A000"); // Da Vinci Jr Mix 2.0
//info = XYZV3::modelToInfo("dvF100B000"); // 1.0
#endif
@@ -4129,7 +4129,7 @@ bool XYZV3::processGCode(const char *gcode, const int gcodeLen, const char *file
// and capture info if possible
// ; filename = temp.3w
// ; print_time = {estimated time in seconds}
- // ; machine = dv1MX0A000 // change to match current printer
+ // ; machine = dv2JW0A000 // change to match current printer
// ; facets = {totalFacets}
// ; total_layers = {totalLayers}
// ; version = 18020109
@@ -4182,10 +4182,11 @@ bool XYZV3::processGCode(const char *gcode, const int gcodeLen, const char *file
tcode = readLineFromBuf(tcode, lineBuf, lineLen);
}
- // create working buffer with extra room
- int bBufMaxLen = gcodeLen + 1000;
+ // create working buffer with extra room (for T0 lines and header)
+ int bBufMaxLen = ( 2 * gcodeLen ) + 1000;
int bbufOffset = 0;
char * bBuf = new char[bBufMaxLen];
+ char t0[1024] = "T0 P0.500";
if(bBuf)
{
// make a fake header to keep printer happy
@@ -4267,16 +4268,33 @@ bool XYZV3::processGCode(const char *gcode, const int gcodeLen, const char *file
if(wasHeader)
headerEnd = bbufOffset;
- // convert G0 to G1
+ // save T0 lines
+ if(strstr(lineBuf, "T0 P"))
+ strcpy(t0, lineBuf);
+
+ // convert G0 to G1 + T0
char *s = strstr(lineBuf, "G0");
if(!s)
s = strstr(lineBuf, "g0");
if(s)
+ {
s[1] = '1';
-
- // copy to file
- strcpy(bBuf + bbufOffset, lineBuf);
- bbufOffset += strlen(lineBuf);
+ // copy to file G1
+ strcpy(bBuf + bbufOffset, lineBuf);
+ bbufOffset += strlen(lineBuf);
+ // copy to file T0
+ strcpy(bBuf + bbufOffset, t0);
+ bbufOffset += strlen(t0);
+ } else {
+ // other than G0 lines
+ // and other than M104 S0
+ if(!strstr(lineBuf, "M104 S0"))
+ {
+ // copy to file
+ strcpy(bBuf + bbufOffset, lineBuf);
+ bbufOffset += strlen(lineBuf);
+ }
+ }
}
tcode = readLineFromBuf(tcode, lineBuf, lineLen);and in the folder miniMoverConsole, with gpp and make, I’ve generated the minimover command.
Cura generates gcode, minimover converts the gcode into 3w, and I use the SDCard or XYZware to transfert the 3w file to the printing.
About the gcode,
M104 can set the temperature ( M104 S195 )
M109 should wait for temperature to be reached, but I can’t confirme that. ( M109 S195 )
I’ve used that for a temperature tower.
the gcode T0 is used to set the pourcentage of the spool #1. Spool #2 is calculated with this number also.
T0 P0.200 is to set spool #1 20% and spool #2 80%
T0 P1.000 is to set spool #1 100%
T0 P0.000 is to set spool #1 0% and spool #2 100%
The gcode T0 have to be set after each move without using the spool (G0 or G1 without Exxx)
Inside cura, I’ve created a printer with 5 extruders
150mm x 150 mm x 150 mm
Build plate shape : rectangular
G-code flavor : Marlin
Printhead settings : Xmin 0, Ymin -10, Xmax 10, Ymax 10
Gantry Height 100
Number of Extruders 5
Apply Extruder offsets to Gcode : checked (yes)
Start gcode
G21 ; set units to millimeters
M107
M104 S200
M109 S200
M191 ; display cancel menu
G90 ; use absolute coordinates
T0 P0.5
G1 F1800.000 E-7.50000
G92 E0
M82 ; use absolute distances for extrusionEnd gcode
T0 P0.5
G92 E0
M84 ; disable motorsFor each Extruder
Nozzle size 0.4mm
compatible material diameter 1.75mm
Nozzle offset X and Y 0
Cooling Fan Number 0
Extruder Start gcode
T0 P1.000 ; 100% filament #1
G1 F1800.000 E4.00000
T0 P1.000Extruder end gcode
G1 F1800.000 E-4.00000Change the % on each Extruder : Extruder #1 100 %, Extruder #2 80 %, Extruder #3 50 %, Extruder #4 20 % and Extruder #5 0 %.
You can create more Extruder, if you wish.
I’ve created material with these pourcentages, and associated them to the extruder to view the pourcentage.
My first try was with a too slow speed and a too high temperature. The nozzle has been captured inside a too much amount of cold filament. I’ve to find the good speed and temperature.
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