initial commit

Signed-off-by: Florian BOUILLON <f.bouillon@aptatio.com>

.dockerignore

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+files/*
+node_modules/

.gitignore

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+node_modules
+files/

Dockerfile

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+#########
+# Build #
+#########
+FROM node:alpine as BUILD_IMAGE
+
+# run as non root user
+USER node
+
+# go to user repository
+WORKDIR /home/node
+
+# Add package json
+ADD --chown=node:node package.json package-lock.json ./
+
+# install dependencies from package lock
+RUN npm ci
+
+# Add project files
+ADD --chown=node:node . .
+
+# build
+RUN npm run build
+
+##############
+# Production #
+##############
+FROM node:latest as PROD_IMAGE
+
+# ADD https://github.com/prusa3d/PrusaSlicer/releases/download/version_2.5.2/PrusaSlicer-2.5.2+linux-x64-GTK3-202303231201.tar.bz2 ./
+# RUN tar -xvf PrusaSlicer-2.5.2+linux-x64-GTK3-202303231201.tar.bz2 -C /opt
+# ENV PATH /opt/PrusaSlicer-2.5.2+linux-x64-GTK3-202303231201/bin:$PATH
+
+# Install deps
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+    prusa-slicer \
+	&& apt-get remove prusa-slicer -y \
+    && rm -rf /var/lib/apt/lists/*
+
+# run as non root user
+USER node
+
+# go to work folder
+WORKDIR /home/node
+
+ADD --chown=node:node https://github.com/bambulab/BambuStudio/releases/download/v01.05.00.61/Bambu_Studio_linux_fedora_v01.05.00.61_20230314200047.AppImage ./
+ENV SLICER_PATH /home/node/Bambu_Studio_linux_fedora_v01.05.00.61_20230314200047.AppImage
+RUN chmod +x /home/node/Bambu_Studio_linux_fedora_v01.05.00.61_20230314200047.AppImage
+
+# copy from build image
+COPY --chown=node:node --from=BUILD_IMAGE /home/node/node_modules ./node_modules
+COPY --chown=node:node --from=BUILD_IMAGE /home/node/configs ./configs
+COPY --chown=node:node --from=BUILD_IMAGE /home/node/src ./src
+COPY --chown=node:node --from=BUILD_IMAGE /home/node/package.json /home/node/.env* ./
+
+# Expose port
+EXPOSE 3000
+
+# run it !
+CMD ["npm", "run", "start"]

configs/config.ini

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+# generated by PrusaSlicer 2.5.2 on 2023-04-04 at 12:15:53 UTC
+avoid_crossing_perimeters = 0
+avoid_crossing_perimeters_max_detour = 0
+bed_custom_model = 
+bed_custom_texture = 
+bed_shape = 0x0,180x0,180x180,0x180
+bed_temperature = 60
+before_layer_gcode = ;BEFORE_LAYER_CHANGE\nG92 E0.0\n;[layer_z]\n\n
+between_objects_gcode = 
+bottom_fill_pattern = monotonic
+bottom_solid_layers = 5
+bottom_solid_min_thickness = 0.5
+bridge_acceleration = 1000
+bridge_angle = 0
+bridge_fan_speed = 100
+bridge_flow_ratio = 1
+bridge_speed = 25
+brim_separation = 0.1
+brim_type = outer_only
+brim_width = 0
+clip_multipart_objects = 1
+color_change_gcode = M600
+colorprint_heights = 
+compatible_printers_condition_cummulative = "printer_notes=~/.*PRINTER_VENDOR_PRUSA3D.*/ and printer_notes=~/.*PRINTER_MODEL_MINI.*/ and nozzle_diameter[0]==0.4";"nozzle_diameter[0]!=0.8 and printer_model!=\"XL\" and ! single_extruder_multi_material"
+complete_objects = 0
+cooling = 1
+cooling_tube_length = 5
+cooling_tube_retraction = 91.5
+default_acceleration = 1000
+default_filament_profile = "Prusament PLA"
+default_print_profile = 0.15mm QUALITY @MINI
+deretract_speed = 40
+disable_fan_first_layers = 1
+dont_support_bridges = 0
+draft_shield = disabled
+duplicate_distance = 6
+elefant_foot_compensation = 0.2
+end_filament_gcode = "; Filament-specific end gcode"
+end_gcode = G1 E-1 F2100 ; retract\n{if max_layer_z < max_print_height}G1 Z{z_offset+min(max_layer_z+2, max_print_height)} F720 ; Move print head up{endif}\nG1 X178 Y178 F4200 ; park print head\n{if max_layer_z < max_print_height}G1 Z{z_offset+min(max_layer_z+30, max_print_height)} F720 ; Move print head further up{endif}\nG4 ; wait\nM104 S0 ; turn off temperature\nM140 S0 ; turn off heatbed\nM107 ; turn off fan\nM221 S100 ; reset flow\nM900 K0 ; reset LA\nM84 ; disable motors\n; max_layer_z = [max_layer_z]
+ensure_vertical_shell_thickness = 1
+external_perimeter_acceleration = 800
+external_perimeter_extrusion_width = 0.45
+external_perimeter_speed = 40
+external_perimeters_first = 0
+extra_loading_move = -2
+extra_perimeters = 0
+extruder_clearance_height = 20
+extruder_clearance_radius = 35
+extruder_colour = ""
+extruder_offset = 0x0
+extrusion_axis = E
+extrusion_multiplier = 1
+extrusion_width = 0.45
+fan_always_on = 1
+fan_below_layer_time = 100
+filament_colour = #FF8000
+filament_cooling_final_speed = 3.4
+filament_cooling_initial_speed = 2.2
+filament_cooling_moves = 4
+filament_cost = 36.29
+filament_density = 1.24
+filament_deretract_speed = nil
+filament_diameter = 1.75
+filament_load_time = 0
+filament_loading_speed = 28
+filament_loading_speed_start = 3
+filament_max_volumetric_speed = 15
+filament_minimal_purge_on_wipe_tower = 15
+filament_notes = "Affordable filament for everyday printing in premium quality manufactured in-house by Josef Prusa"
+filament_ramming_parameters = "120 100 6.6 6.8 7.2 7.6 7.9 8.2 8.7 9.4 9.9 10.0| 0.05 6.6 0.45 6.8 0.95 7.8 1.45 8.3 1.95 9.7 2.45 10 2.95 7.6 3.45 7.6 3.95 7.6 4.45 7.6 4.95 7.6"
+filament_retract_before_travel = nil
+filament_retract_before_wipe = nil
+filament_retract_layer_change = nil
+filament_retract_length = nil
+filament_retract_lift = nil
+filament_retract_lift_above = nil
+filament_retract_lift_below = nil
+filament_retract_restart_extra = nil
+filament_retract_speed = nil
+filament_settings_id = "Prusament PLA"
+filament_soluble = 0
+filament_spool_weight = 201
+filament_toolchange_delay = 0
+filament_type = PLA
+filament_unload_time = 0
+filament_unloading_speed = 90
+filament_unloading_speed_start = 100
+filament_vendor = Prusa Polymers
+filament_wipe = nil
+fill_angle = 45
+fill_density = 20%
+fill_pattern = grid
+first_layer_acceleration = 600
+first_layer_acceleration_over_raft = 0
+first_layer_bed_temperature = 60
+first_layer_extrusion_width = 0.42
+first_layer_height = 0.2
+first_layer_speed = 20
+first_layer_speed_over_raft = 30
+first_layer_temperature = 215
+full_fan_speed_layer = 4
+fuzzy_skin = none
+fuzzy_skin_point_dist = 0.8
+fuzzy_skin_thickness = 0.3
+gap_fill_enabled = 1
+gap_fill_speed = 40
+gcode_comments = 0
+gcode_flavor = marlin2
+gcode_label_objects = 1
+gcode_resolution = 0.0125
+gcode_substitutions = 
+high_current_on_filament_swap = 0
+host_type = octoprint
+infill_acceleration = 1500
+infill_anchor = 2.5
+infill_anchor_max = 12
+infill_every_layers = 1
+infill_extruder = 1
+infill_extrusion_width = 0.45
+infill_first = 0
+infill_only_where_needed = 0
+infill_overlap = 10%
+infill_speed = 140
+interface_shells = 0
+ironing = 0
+ironing_flowrate = 15%
+ironing_spacing = 0.1
+ironing_speed = 15
+ironing_type = top
+layer_gcode = ;AFTER_LAYER_CHANGE\n;[layer_z]
+layer_height = 0.15
+machine_limits_usage = emit_to_gcode
+machine_max_acceleration_e = 5000
+machine_max_acceleration_extruding = 2000
+machine_max_acceleration_retracting = 1250
+machine_max_acceleration_travel = 2500
+machine_max_acceleration_x = 2500
+machine_max_acceleration_y = 2500
+machine_max_acceleration_z = 400
+machine_max_feedrate_e = 80
+machine_max_feedrate_x = 180
+machine_max_feedrate_y = 180
+machine_max_feedrate_z = 12
+machine_max_jerk_e = 10
+machine_max_jerk_x = 8
+machine_max_jerk_y = 8
+machine_max_jerk_z = 2
+machine_min_extruding_rate = 0
+machine_min_travel_rate = 0
+max_fan_speed = 100
+max_layer_height = 0.25
+max_print_height = 180
+max_print_speed = 150
+max_volumetric_extrusion_rate_slope_negative = 0
+max_volumetric_extrusion_rate_slope_positive = 0
+max_volumetric_speed = 0
+min_bead_width = 85%
+min_fan_speed = 100
+min_feature_size = 25%
+min_layer_height = 0.07
+min_print_speed = 15
+min_skirt_length = 4
+mmu_segmented_region_max_width = 0
+notes = 
+nozzle_diameter = 0.4
+only_retract_when_crossing_perimeters = 0
+ooze_prevention = 0
+output_filename_format = {input_filename_base}_{layer_height}mm_{initial_filament_type}_{printer_model}_{print_time}.gcode
+overhangs = 1
+parking_pos_retraction = 92
+pause_print_gcode = M601
+perimeter_acceleration = 1000
+perimeter_extruder = 1
+perimeter_extrusion_width = 0.45
+perimeter_generator = arachne
+perimeter_speed = 50
+perimeters = 2
+physical_printer_settings_id = 
+post_process = 
+print_host = 
+print_settings_id = 0.15mm SPEED @MINI
+printer_model = MINI
+printer_notes = Don't remove the following keywords! These keywords are used in the "compatible printer" condition of the print and filament profiles to link the particular print and filament profiles to this printer profile.\nPRINTER_VENDOR_PRUSA3D\nPRINTER_MODEL_MINI\n
+printer_settings_id = Original Prusa MINI & MINI+
+printer_technology = FFF
+printer_variant = 0.4
+printer_vendor = 
+printhost_apikey = 
+printhost_cafile = 
+raft_contact_distance = 0.2
+raft_expansion = 1.5
+raft_first_layer_density = 90%
+raft_first_layer_expansion = 3
+raft_layers = 0
+remaining_times = 1
+resolution = 0
+retract_before_travel = 1.5
+retract_before_wipe = 70%
+retract_layer_change = 1
+retract_length = 3.2
+retract_length_toolchange = 4
+retract_lift = 0.2
+retract_lift_above = 0
+retract_lift_below = 179
+retract_restart_extra = 0
+retract_restart_extra_toolchange = 0
+retract_speed = 70
+seam_position = aligned
+silent_mode = 0
+single_extruder_multi_material = 0
+single_extruder_multi_material_priming = 1
+skirt_distance = 2
+skirt_height = 3
+skirts = 1
+slice_closing_radius = 0.049
+slicing_mode = regular
+slowdown_below_layer_time = 10
+small_perimeter_speed = 25
+solid_infill_acceleration = 1500
+solid_infill_below_area = 0
+solid_infill_every_layers = 0
+solid_infill_extruder = 1
+solid_infill_extrusion_width = 0.45
+solid_infill_speed = 140
+spiral_vase = 0
+standby_temperature_delta = -5
+start_filament_gcode = "M900 K{if printer_notes=~/.*PRINTER_MODEL_MINI.*/ and nozzle_diameter[0]==0.6}0.12{elsif printer_notes=~/.*PRINTER_MODEL_MINI.*/ and nozzle_diameter[0]==0.8}0.06{elsif printer_notes=~/.*PRINTER_MODEL_MINI.*/}0.2{elsif nozzle_diameter[0]==0.8}0.01{elsif nozzle_diameter[0]==0.6}0.04{else}0.05{endif} ; Filament gcode LA 1.5\n{if printer_notes=~/.*PRINTER_MODEL_MINI.*/};{elsif printer_notes=~/.*PRINTER_HAS_BOWDEN.*/}M900 K200{elsif nozzle_diameter[0]==0.6}M900 K18{elsif nozzle_diameter[0]==0.8};{else}M900 K30{endif} ; Filament gcode LA 1.0"
+start_gcode = M862.3 P "[printer_model]" ; printer model check\nG90 ; use absolute coordinates\nM83 ; extruder relative mode\nM104 S170 ; set extruder temp for bed leveling\nM140 S[first_layer_bed_temperature] ; set bed temp\nM109 R170 ; wait for bed leveling temp\nM190 S[first_layer_bed_temperature] ; wait for bed temp\nM204 T1250 ; set travel acceleration\nG28 ; home all without mesh bed level\nG29 ; mesh bed leveling \nM204 T[machine_max_acceleration_travel] ; restore travel acceleration\nM104 S[first_layer_temperature] ; set extruder temp\nG92 E0\nG1 Y-2 X179 F2400\nG1 Z3 F720\nM109 S[first_layer_temperature] ; wait for extruder temp\n\n; intro line\nG1 X170 F1000\nG1 Z0.2 F720\nG1 X110 E8 F900\nG1 X40 E10 F700\nG92 E0\n\nM221 S95 ; set flow
+support_material = 0
+support_material_angle = 0
+support_material_auto = 1
+support_material_bottom_contact_distance = 0
+support_material_bottom_interface_layers = 0
+support_material_buildplate_only = 0
+support_material_closing_radius = 2
+support_material_contact_distance = 0.2
+support_material_enforce_layers = 0
+support_material_extruder = 0
+support_material_extrusion_width = 0.35
+support_material_interface_contact_loops = 0
+support_material_interface_extruder = 0
+support_material_interface_layers = 2
+support_material_interface_pattern = rectilinear
+support_material_interface_spacing = 0.2
+support_material_interface_speed = 80%
+support_material_pattern = rectilinear
+support_material_spacing = 2
+support_material_speed = 40
+support_material_style = grid
+support_material_synchronize_layers = 0
+support_material_threshold = 50
+support_material_with_sheath = 0
+support_material_xy_spacing = 60%
+temperature = 215
+template_custom_gcode = 
+thick_bridges = 0
+thin_walls = 0
+threads = 12
+thumbnails = 16x16,220x124
+thumbnails_format = PNG
+toolchange_gcode = 
+top_fill_pattern = monotoniclines
+top_infill_extrusion_width = 0.4
+top_solid_infill_acceleration = 800
+top_solid_infill_speed = 40
+top_solid_layers = 8
+top_solid_min_thickness = 0.7
+travel_speed = 150
+travel_speed_z = 12
+use_firmware_retraction = 0
+use_relative_e_distances = 1
+use_volumetric_e = 0
+variable_layer_height = 1
+wall_distribution_count = 1
+wall_transition_angle = 10
+wall_transition_filter_deviation = 25%
+wall_transition_length = 100%
+wipe = 1
+wipe_into_infill = 0
+wipe_into_objects = 0
+wipe_tower = 0
+wipe_tower_bridging = 10
+wipe_tower_brim_width = 2
+wipe_tower_no_sparse_layers = 0
+wipe_tower_rotation_angle = 0
+wipe_tower_width = 60
+wipe_tower_x = 170
+wipe_tower_y = 140
+wiping_volumes_extruders = 70,70
+wiping_volumes_matrix = 0
+xy_size_compensation = 0
+z_offset = 0

package.json

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+{
+	"dependencies": {
+		"@dzeio/object-util": "^1.5.0",
+		"express": "^4.18.2"
+	},
+	"scripts": {
+		"start": "node src/main.js",
+		"build": "true"
+	}
+}

src/main.js

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+const express = require('express')
+const fs = require('fs')
+const execSync = require('child_process').execSync;
+const { objectMap } = require('@dzeio/object-util')
+
+const server = express()
+
+fs.mkdirSync('files', { recursive: true })
+
+/**
+ * 
+ * @param {string} data the GCode source
+ * @returns {number} the time in seconds
+ */
+function decodeGCode(data) {
+
+	const line = data.split('\n').find((it) => it.includes('estimated printing time'))
+	if (!line) {
+		console.error('line not found :(')
+		process.exit(1)
+	}
+	const time = line.split('=')[1].trim()
+	let timeInSec = 0
+	for (const it of time.split(' ')) {
+		const lastChar = it.charAt(it.length - 1)
+		const time = parseInt(it.slice(0, it.length - 1), 10)
+		console.log(it)
+		switch (lastChar) {
+			case 'm':
+				timeInSec += time * 60
+				break;
+			case 's':
+				timeInSec += time
+				break;
+			case 'h':
+				timeInSec += time * 60 * 60
+				break;
+			case 'd':
+				timeInSec += time * 60 * 60 * 24
+				break;
+			default:
+				throw new Error(`error parsing time ${it} (${time})`)
+		}
+	}
+	console.log('orig', time, 'secs:', timeInSec, 'mins:', timeInSec / 60, 'hours:', timeInSec / 60 / 60, 'days:', timeInSec / 60 / 60 / 24)
+	return timeInSec
+}
+
+
+server.use ((req, res, next) => {
+    var data = '';
+    req.setEncoding('utf8');
+    req.on('data', function(chunk) { 
+       data += chunk;
+    });
+
+    req.on('end', function() {
+        req.body = data;
+        next();
+    });
+});
+
+const path = process.cwd()
+
+server.get('/', (req, res) => {
+	res.send('send through POST in body the stl')
+})
+
+const config = `${path}/configs/config.ini`
+
+server.post('/', (req, res) => {
+	const overrides = req.query
+	const file = (Math.random() * 1000000).toFixed(0)
+	const stlPath = `${path}/files/${file}.stl`
+	const gcodePath = `${path}/files/${file}.gcode`
+	console.log(stlPath)
+	fs.writeFileSync(stlPath, req.body)
+	const additionnalParams = objectMap(overrides, (v, k) => `--${k} ${v}`).join(' ')
+	const cmd = `${process.env.SLICER_PATH} --export-gcode ${stlPath} --load ${config} --output ${gcodePath} ${additionnalParams}`
+	execSync(cmd)
+	const gcode = fs.readFileSync(gcodePath, 'utf-8')
+	const time = decodeGCode(gcode)
+	res.json({ timeToPrint: time, gcode })
+	// res.sendFile(gcodePath)
+})
+
+server.listen(3000, undefined, () => {
+	console.log(`🚀 Server ready at localhost:3000`);
+})