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186 changes: 182 additions & 4 deletions Fusion 360/Post-Processor/SM2.0 (NrvO).cps
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Original file line number Diff line number Diff line change
Expand Up @@ -99,6 +99,7 @@
{
POST_VERSION = "v20230108.1";
AUTHOR_NAME = "Nuno Vaz Oliveira";
CONTRIBUTOR_NAME = "Caleb McMains" // [ADDED THIS ONLY SO I COULD DISTINGUISH WHICH POST PROCESS WAS MY EDITS]
}

// User configuration. Please change only these values on this file
Expand All @@ -109,6 +110,7 @@
DWELL_TIME_SPIN_DOWN = "3"; // Dwell time for spin down in seconds. Used immediately after spindle stop
PAUSE_RAISE_Z_FEED_RATE_UP = 3000; // Feed rate to raise Z axis on ACTION_PAUSE_RAISE_Z command
PAUSE_RAISE_Z_FEED_RATE_DOWN = 1500; // Feed rate to return Z axis to position after ACTION_PAUSE_RAISE_Z command
ACTION_PAUSE_RAISE_Z_POSITION = 334; // Position of Z axis for pause and other actions to send Z as far up as possible
}

// Fusion 360 Kernel Settings
Expand All @@ -117,7 +119,7 @@
allowHelicalMoves = true; // Supported by Snapmaker 2.0
capabilities = CAPABILITY_MILLING; // All that Snapmaker 2.0 can handle
certificationLevel = 2; // As recommended on Autodesk Post Processor Training Guide
description = "Snapmaker 2.0 (Marlin) by " + AUTHOR_NAME; // Shows up on Fusion 360 post window
description = "Snapmaker 2.0 (Marlin) by " + AUTHOR_NAME + " featuring contributions from " + CONTRIBUTOR_NAME; // Shows up on Fusion 360 post window, [CHANGED THIS ONLY SO I COULD DISTINGUISH WHICH POST PROCESS WAS MY EDITS]
extension = ".cnc"; // As exported by Luban
setCodePage("ascii"); // As recommended on Autodesk Post Processor Training Guide
highFeedrate = 6000; // Specifies the high feed mapping mode for rapid moves
Expand All @@ -136,6 +138,22 @@

// Properties that are changeable on Fusion 360 post process page. New improved version with tooltips and proper writing
properties = {
writeSnapmakerHeader : {
title : "Write snapmaker header",
description : "Outputs a complete header as comments that Snapmaker Luban Software reads",
group : "informationSection",
type : "boolean",
value : true,
scope : "post"
},
writeMachiningTimes : {
title : "Write machining times",
description : "Outputs a estimated amount of time for the whole machining process",
group : "informationSection",
type : "boolean",
value : true,
scope : "post"
},
writeWarnings : {
title : "Write warnings as comments",
description : "Output comments with warnings for unsupported and ignored functions.",
Expand Down Expand Up @@ -294,6 +312,9 @@ groupDefinitions = {

// This variable will track the last Z position
var lastPositionZ = 9999;

// This variable allows for tracting the previousFeedRate in the OnLinear function to decide when to write the feed rate and when not to
var previousFeedRate;
}

// The writeBlock function writes a block of codes to the output NC file. It will add a sequence number to the block,
Expand All @@ -313,7 +334,8 @@ function writeBlock() {
// formatComment is used to format comments. The formatComment function will remove any characters in the comment
// that are not allowed, and add any characters that are mandatory. For Snapmakers, a semi-colon at the beginning.
function formatComment(text) {
return ";" + String(text).replace(/[\(\)]/g, ""); // TODO: Need to double check if ( and ) are bad for comments
// return ";" + String(text).replace(/[\(\)]/g, ""); // TODO: Need to double check if ( and ) are bad for comments
return ";" + String(text) // TODO: Need to double check if ( and ) are bad for comments <---I dont think they are cause snapmaker uses them in comments
}

// The writeComment function is defined in the post processor and is used to output comments to the output NC file.
Expand Down Expand Up @@ -341,6 +363,127 @@ function onComment(message) {

}


// The totalMachingTime function is a custom function to determine the machining time per operation
// and the total machining time for all operations to be done.
// The function outputs and object containing the total time and an array of cycle times for each operation.
// This function can be used anywhere in the file.
function totalMachingingTime() {
var cycleTime = 0;
var currentTool;
var toolChangeTime = 0; // the time in seconds for a tool change
var sectionCycleTimes = [];

for (var i = 0; i < getNumberOfSections(); ++i) {
var section = getSection(i);
var tool = section.getTool();
if (currentTool != tool.number) {
currentTool = tool.number;
cycleTime += toolChangeTime;
}
cycleTime += section.getCycleTime();
var comment;
if (section.hasParameter("operation-comment")) {
comment = section.getParameter("operation-comment");
}
sectionCycleTimes.push({operation:comment, cycleTime:section.getCycleTime()});
}

var cycleTimeData = {totalCycleTime:cycleTime, sectionCycleTimes:sectionCycleTimes}

return cycleTimeData;
}

// The convertSeconds function takes in cycle times as seconds and outputs and object containing
// different ways for the time to be displayed (i.e.: total seconds, total minutes, hours, minutes, and seconds).
// this function can be used anywhere in the file.
function convertSeconds(userSeconds) {
const userSecondsNum = parseInt(userSeconds, 10);
const totalSeconds =
userSecondsNum < 9
? userSecondsNum.toString()
: userSecondsNum.toString();
const totalMinutes =
(userSecondsNum / 60).toFixed(2) < 9
? (userSecondsNum / 60).toFixed(2).toString()
: (userSecondsNum / 60).toFixed(2).toString();
const hours =
Math.floor(userSecondsNum / 3600) < 9
? Math.floor(userSecondsNum / 3600)
.toString()
: Math.floor(userSecondsNum / 3600);
const minutes =
Math.floor((userSecondsNum / 60) % 60) < 9
? Math.floor((userSecondsNum / 60) % 60)
.toString()
: Math.floor((userSecondsNum / 60) % 60).toString();
const seconds =
userSecondsNum % 60 < 9
? (userSecondsNum % 60).toString()
: userSecondsNum % 60;

const timeData = {totalSeconds: totalSeconds, totalMinutes: totalMinutes, hours: hours, minutes: minutes, seconds: seconds}


return timeData;
}


// The writeSnapmakerHeader function outputs a header section modeled after a NC file that is made
// from Snapmaker Lubans software.
// This specifically helps when uploading NC files to luban to send it to the machine and the machine
// having access to certain information in the header.
function writeSnapmakerHeader() {
// Starts snapmaker header
writeComment(localize("Header Start"));

// Defines type <-- could be changes to a property where you can select cnc, 3d printing, or laser
writeComment(localize("header_type: cnc"));

// Toolhead
writeComment(localize("tool_head: standardCNCToolheadForSM2"));

// Writes the machine model if it exists
machineConfiguration.getModel() ? writeComment(localize("machine: ") + machineConfiguration.getModel()) : writeComment(localize("machine: "));

// Writes the estimated time in seconds for the whole process
writeComment(localize("estimated_time(s): " + convertSeconds(totalMachingingTime().totalCycleTime).totalSeconds));

// Writes coordinates min and maxs, I assume this is for creating the boundry box for running the boundry
// on the snapmaker machine
writeComment(localize("max_x(mm): " + getGlobalParameter("operation:surfaceXHigh")));
writeComment(localize("max_y(mm): " + getGlobalParameter("operation:surfaceYHigh")));
writeComment(localize("max_z(mm): " + ACTION_PAUSE_RAISE_Z_POSITION));
writeComment(localize("max_b(mm): " + "0"));
writeComment(localize("min_x(mm): " + getGlobalParameter("operation:surfaceXLow")));
writeComment(localize("min_y(mm): " + getGlobalParameter("operation:surfaceYLow")));
writeComment(localize("min_b(mm): " + "0"));
writeComment(localize("min_z(mm): " + getGlobalParameter("operation:bottomHeight_value")));

// Writes the feedrate for the tool and the machining when carving
if (hasGlobalParameter("operation:tool_feedCutting")) {
writeComment(localize("work_speed(mm/minute): " + getGlobalParameter("operation:tool_feedCutting")))
} else {
writeComment(localize("work_speed(mm/minute): unknown"));
}

// Writes the feedrate for the tool and the machining when not carving
if (hasGlobalParameter("operation:tool_surfaceSpeed")) {
writeComment(localize("jog_speed(mm/minute): " + getGlobalParameter("operation:tool_surfaceSpeed").toFixed(0)))
} else {
writeComment(localize("wjog_speed(mm/minute): unknown"));
}

// Hard coded in to match the work size of the Snapmaker A350T
writeComment(localize("work_size_x: " + "320"));
writeComment(localize("work_size_x: " + "350"));


//starts snapmaker header
writeComment(localize("Header End"));

}

// The onOpen function is called at start of each CAM operation and can be used to define settings used in the
// post processor and output the startup blocks:
// 1. Define settings based on properties
Expand All @@ -351,6 +494,8 @@ function onComment(message) {
function onOpen() {

// Read properties from post to internal variables
prop_writeSnapmakerHeader = getProperty("writeSnapmakerHeader");
prop_writeMachiningTimes = getProperty("writeMachiningTimes");
prop_writeWarnings = getProperty("writeWarnings");
prop_writeOperationName = getProperty("writeOperationName");
prop_writeProgram = getProperty("writeProgram");
Expand All @@ -375,6 +520,14 @@ function onOpen() {
// Read property sequenceNumberStart
sequenceNumber = prop_sequenceNumberStart;

// Write snapmaker header info
if(prop_writeSnapmakerHeader) {
writeSnapmakerHeader();
writeln("");
}



// Write program info
if (prop_writeProgram) {
writeComment(localize("Program"));
Expand Down Expand Up @@ -416,7 +569,19 @@ function onOpen() {
writeComment(localize(" -> Version") + " : " + POST_VERSION);
writeComment(localize(" -> Description") + " : " + longDescription);
}
if (prop_writeExtraComments) writeln("");

// Writes Estimated Times
if(prop_writeMachiningTimes) {
writeComment(localize("Estiamted Machining Time"));
for (var i = 0; i < totalMachingingTime().sectionCycleTimes.length; i++ ) {
// writeComment(localize(" -> Operation " + totalMachingingTime().sectionCycleTimes[i].operation + " : " + convertSeconds(totalMachingingTime().sectionCycleTimes[i].cycleTime).hours + " h ") + convertSeconds(totalMachingingTime().sectionCycleTimes[i].cycleTime).minutes + " min " + convertSeconds(totalMachingingTime().sectionCycleTimes[i].cycleTime).seconds + " sec");
writeComment(localize(" -> " + convertSeconds(totalMachingingTime().sectionCycleTimes[i].cycleTime).hours + "h ") + convertSeconds(totalMachingingTime().sectionCycleTimes[i].cycleTime).minutes + "min " + convertSeconds(totalMachingingTime().sectionCycleTimes[i].cycleTime).seconds + "sec" + " : " + "Operation " + totalMachingingTime().sectionCycleTimes[i].operation);
}
// writeComment(localize(" -> Total" + " : " + convertSeconds(totalMachingingTime().totalCycleTime).hours + " h ") + convertSeconds(totalMachingingTime().totalCycleTime).minutes + " min " + convertSeconds(totalMachingingTime().totalCycleTime).seconds + " sec");
writeComment(localize(" -> " + convertSeconds(totalMachingingTime().totalCycleTime).hours + "h ") + convertSeconds(totalMachingingTime().totalCycleTime).minutes + "min " + convertSeconds(totalMachingingTime().totalCycleTime).seconds + "sec" + " : " + "Total");
writeln("");
}


// Check unit and process it as on Snapmaker original post
switch (unit) {
Expand Down Expand Up @@ -633,7 +798,7 @@ function onParameter(param_name, param_value) {
if (prop_writeExtraComments) writeComment("Manual NC command action \"ACTION_PAUSE_RAISE_Z\" invoked");
if (prop_writeExtraComments) writeComment("Raising Z");
// Raises Z axix to machine coordinates Z=334mm
writeBlock(gMotionModal.format(53), gMotionModal.format(1), zOutput.format(334), feedOutput.format(PAUSE_RAISE_Z_FEED_RATE_UP));
writeBlock(gMotionModal.format(53), gMotionModal.format(1), zOutput.format(ACTION_PAUSE_RAISE_Z_POSITION), feedOutput.format(PAUSE_RAISE_Z_FEED_RATE_UP));
// Enforces absolute positioning coordinate system
writeBlock(gAbsIncModal.format(90));
if (prop_writeExtraComments) writeComment("Executing job pause");
Expand Down Expand Up @@ -754,7 +919,14 @@ function onLinear(_x, _y, _z, feed) {
lastPositionZ = z;
}
// Normal case. Use feed rate specified and output next block
// outputs the feed rate only if it changes, this helps for a cleaner code.
// Snapmakers G-code reference indicates that: "The feedrate set here applies to subsequent moves that omit this parameter."
// therefore feedrate only needs to be written to set it.
if (previousFeedRate === f) {
writeBlock(gMotionModal.format(1), x, y, z);
} else {
writeBlock(gMotionModal.format(1), x, y, z, f);
}
}
}
} else if (f) {
Expand All @@ -767,6 +939,7 @@ function onLinear(_x, _y, _z, feed) {
}
}

previousFeedRate = f;
}

// The onRapid5D function handles rapid positioning moves (G00) in multi-axis operations. The tool position is
Expand Down Expand Up @@ -952,4 +1125,9 @@ function onClose() {
// output next block
writeBlock("G4 S" + DWELL_TIME_SPIN_DOWN);

// Not sure if this a good idea becuase I think it sends the z axis beyond the physical limitations
// of the machine. Also not sure if once the file is complete does the machine defaults take over and automatically send the machine to HOME position?
if (prop_writeExtraComments) writeComment(localize("Move Z axis " + ACTION_PAUSE_RAISE_Z_POSITION + "mm to top of machine to get it out of the way"));
writeBlock(gFormat.format(0), zOutput.format(ACTION_PAUSE_RAISE_Z_POSITION));

}