¶ Connect utilities and make the first power-on
One system at a time. First power is “does it sit there without catching fire,” not “let’s cut 8 mm.” Hire an electrician. I am not your electrician.
Danger: Qualified electrical work only
A qualified electrician must verify the nameplates, supplied drawings, protective earth, voltage/frequency, phase arrangement where applicable, isolator, conductor size, and protective devices. Lock out and verify de-energization before opening electrical panels. OSHA's overview explains why control of unexpected electrical, mechanical, pneumatic, and other energy matters during service (OSHA). Apply your local law and workplace procedure.
¶ Before connecting anything
- Confirm the machine, source, chiller, extraction, and accessories match the order and electrical plan.
- Inspect plugs, terminals, hoses, clamps, and cable insulation for shipping damage.
- Put the emergency stop in a known state and identify every isolator and gas shutoff.
- Confirm all transport restraints are removed and the motion area is clear.
- Keep every door/interlock connected. Do not bridge a switch to make commissioning continue.
¶ Cooling circuit
- Position the chiller where its intake/exhaust will not be blocked.
- Connect the labeled supply and return hoses without kinks.
- Fill with the clean water specified for the supplied chiller; the M-Series manual calls for pure/distilled water.
- Check the level and all joints before energizing.
- Start the chiller independently if the configuration permits, allow air to purge, and watch the return flow and level.
- Stop for leaks, persistent bubbles, abnormal noise, flow/temperature alarms, or water near electrical equipment.
Do not enable the laser source until cooling is stable. Record the normal temperature and alarm-free status for your commissioning log.
¶ Gas and extraction
Secure cylinders upright and fit a regulator designed for the specific gas and required flow/pressure. Keep oxygen equipment scrupulously free from oil/grease and use oxygen-compatible parts. Leak-test with an approved method; never use a flame. Route hoses away from hot work, motion, and sharp edges.
Start extraction before processing. Never cut an unidentified, painted, plated, oily, or polymer material merely because it fits on the table. Identify the material and its fume/fire behavior first.
¶ Controlled power sequence
Use the exact switch sequence supplied with your machine; configurations differ. A conservative commissioning sequence is:
- Verify doors/covers closed, E-stops released only when the area is safe, and no tool is inside.
- Energize the main supply and observe—do not clear an unexplained alarm reflexively.
- Confirm the chiller reaches normal operation with no leaks.
- Start extraction and air systems as applicable.
- Power the control system and home/reference axes only after the travel is visibly clear.
- Verify each emergency stop and door interlock behaves as designed without firing the laser.
- Enable the laser source only after cooling, safety circuits, and control communication are normal.
¶ First-power stop conditions
Isolate energy and obtain competent help for smoke, burning smell, arcing, hot conductors, a water leak, repeated breaker operation, abnormal pump noise, unexpected axis motion, unexpected laser emission, a safety circuit that does not stop motion/emission, or any unexplained source/chiller alarm.
When utilities are stable, install and connect mLaser. Do not use higher power as a commissioning test.
¶ Official Gweike video
These are Gweike's own walkthroughs. Keep the checks above, watch the sequence, then prove the result on your machine.
- 2. Electrical Connection, Gas Connection & Power-on Test
- 38. Gweike 3KW 1.5MPa Air Compressor Connection & Operation
- 28. Replace Water in Chiller
- Full playlist: Gweike M-Series official videos
¶ Official Gweike walkthrough
Electrical, gas, and first power: confirm site voltage against the nameplate, land conductors on the documented isolator, fit nitrogen and oxygen regulators to the labelled rear ports, then power stabilizer, bed, source, e-stop reset, and key in that order. A qualified electrician does the landing; the video is not a licence to guess wire size.