Mercurial > hg-public > lasercut-scripts / file comparison
comparison: printrun-src/printrun/laser.py
printrun-src/printrun/laser.py
- changeset 42
- ea4c43494a19
- parent 37
- 926424f97c8e
- child 43
- f7e9bd735ce1
equal
deleted
inserted
replaced
| 41:08d027d2a532 | 42:ea4c43494a19 |
|---|---|
| 161 DIR = 1 | 161 DIR = 1 |
| 162 travel_speed = self.settings.lc_travel_speed * 60 | 162 travel_speed = self.settings.lc_travel_speed * 60 |
| 163 engrave_speed = self.settings.lc_engrave_speed * 60 * self.settings.lc_bitmap_speed_factor | 163 engrave_speed = self.settings.lc_engrave_speed * 60 * self.settings.lc_bitmap_speed_factor |
| 164 for X in range(im.size[0]): | 164 for X in range(im.size[0]): |
| 165 gcode_col = "" | 165 gcode_col = "" |
| 166 first_ymm = None | |
| 167 first_xmm = None | |
| 166 E = 0 | 168 E = 0 |
| 167 last_bit = 1 # we engrave on black pixel = 0 | 169 last_bit = 1 # we engrave on black pixel = 0 |
| 168 START_Y = 0 | 170 START_Y = 0 |
| 169 if DIR > 0: | 171 if DIR > 0: |
| 170 range_start = 0 | 172 range_start = 0 |
| 174 range_stop = -1 | 176 range_stop = -1 |
| 175 | 177 |
| 176 for Y in range(range_start, range_stop, DIR): | 178 for Y in range(range_start, range_stop, DIR): |
| 177 YMM = abs((Y * self.MM_PIXEL) + INVERT_Y) | 179 YMM = abs((Y * self.MM_PIXEL) + INVERT_Y) |
| 178 XMM = X * self.MM_PIXEL | 180 XMM = X * self.MM_PIXEL |
| 181 | |
| 179 #print "X %d Y %d" % (X, Y) | 182 #print "X %d Y %d" % (X, Y) |
| 180 bit = self.pixel2bit(pix[X, Y]) | 183 bit = self.pixel2bit(pix[X, Y]) |
| 181 if self.settings.lc_invert_cut: | 184 if self.settings.lc_invert_cut: |
| 182 if bit == 0: | 185 if bit == 0: |
| 183 bit = 1 | 186 bit = 1 |
| 196 E = E + self.MM_PIXEL * (Y - START_Y) | 199 E = E + self.MM_PIXEL * (Y - START_Y) |
| 197 else: | 200 else: |
| 198 E = E + self.MM_PIXEL * (START_Y - Y) | 201 E = E + self.MM_PIXEL * (START_Y - Y) |
| 199 gcode_col += "G1 X%.4f Y%.4f E%.4f F%.4f\n" % ( | 202 gcode_col += "G1 X%.4f Y%.4f E%.4f F%.4f\n" % ( |
| 200 XMM, YMM, E * E_FACTOR, engrave_speed) | 203 XMM, YMM, E * E_FACTOR, engrave_speed) |
| 204 if not first_xmm: | |
| 205 first_xmm = XMM + 0.1 # little offset needed! | |
| 206 first_ymm = YMM * 1 | |
| 201 else: | 207 else: |
| 208 if not first_xmm: | |
| 209 first_xmm = XMM + 0.1 # little offset needed! | |
| 210 first_ymm = YMM * 1 | |
| 202 # bit value has changed! | 211 # bit value has changed! |
| 203 if bit == 0: | 212 if bit == 0: |
| 204 # jump to start of line to write | 213 # jump to start of line to write |
| 205 START_Y = Y | 214 START_Y = Y |
| 206 gcode_col += "G0 X%.4f Y%.4f F%.4f\n" % ( | 215 gcode_col += "G0 X%.4f Y%.4f F%.4f\n" % ( |
| 207 XMM, YMM, travel_speed) | 216 XMM, YMM, travel_speed) |
| 217 last_xmm = None | |
| 218 last_ymm = None | |
| 208 else: | 219 else: |
| 209 # end of line to write | 220 # end of line to write |
| 210 if DIR > 0: | 221 if DIR > 0: |
| 211 E = E + (self.MM_PIXEL * (Y - START_Y)) | 222 E = E + (self.MM_PIXEL * (Y - START_Y)) |
| 212 else: | 223 else: |
| 214 gcode_col += "G1 X%.4f Y%.4f E%.4f F%.4f\n" % ( | 225 gcode_col += "G1 X%.4f Y%.4f E%.4f F%.4f\n" % ( |
| 215 XMM, YMM, E * E_FACTOR, engrave_speed) | 226 XMM, YMM, E * E_FACTOR, engrave_speed) |
| 216 last_bit = bit | 227 last_bit = bit |
| 217 if gcode_col <> "": | 228 if gcode_col <> "": |
| 218 # we skip empty columns | 229 # we skip empty columns |
| 230 # place last position as G0 to be sure to switch off laser immediately at finish of the line! | |
| 231 if first_xmm: | |
| 232 fo.write("G0 X%.4f Y%.4f F%.4f ; force laser off\n" % ( | |
| 233 first_xmm, first_ymm, travel_speed)) | |
| 234 | |
| 219 fo.write("M400 ; X=%d printing row: direction %i\nG92 E0\n%s" % ( | 235 fo.write("M400 ; X=%d printing row: direction %i\nG92 E0\n%s" % ( |
| 220 X, DIR, gcode_col)) | 236 X, DIR, gcode_col)) |
| 221 if self.settings.lc_change_dir: | 237 if self.settings.lc_change_dir: |
| 222 DIR = DIR * (-1) # change y direction on every X | 238 DIR = DIR * (-1) # change y direction on every X |
| 223 | 239 |
