Avoiding Pitfalls in Choosing a Laser Marking Machine

When choosing a mirror system for a laser marking machine, the most important parameters to consider are scanning speed and repeatability.In everyday use, the equipment requires regular calibration and good protection from dust and heat. When selecting a suitable galvanometer to match a computer, it is essential to verify compatibility.Grasping the techniques of parameter comparison and maintenance can effectively improve marking precision and extend the life of the equipment.

Why is the galvanometer system so important?

The galvanometer system is like the "wrist" of a laser marking machine, and directly determines the accuracy and speed of the marking.Many newcomers to the market spend a lot of money on the main body of the machine, but are reluctant to invest in the galvanometer, which results in blurry marks, slow speed, and frequent breakdowns.A good galvanometer can enable a 20-watt machine to perform at 30 watts. That's what makes core components so attractive.

This is the most common pitfall for buyers.

People just look at the price, not the specifications.

A scanning mirror costing only a few hundred NT dollars is certainly tempting, but there are many examples of them going out of alignment after only three months of use.The report recommends that the following hard indicators be used for comparison: scan speed (not less than 7000mm / s) and accuracy (≤ 0.003mm).

They were being misled by inflated figures.

Have you ever encountered a galvanometer that was advertised to have a precision of 0.001mm, but actually tested out at 0.008mm? Remember to ask the seller to provide a third-party testing report, and look carefully at the hidden parameters of acceleration and temperature drift.

Ignoring compatibility.

Not all scanners are compatible with your laser. Before buying, make sure to check the interface type (analog / digital) and the control software version. It is best if the seller can provide a video of the scanner being tested with your laser.

By understanding these parameters, you can avoid a lot of detours.

The scanning speed must be left with a margin.

For a galvanometer scanner rated at 8000mm / s, it is recommended that the actual operating load be set at 70 % of the rated value.Just like you shouldn't always drive at the highest speed, you need to leave some room for maneuver.

The precision of repetition is accurate to the third decimal place.

Don't be fooled by vague terms like "high precision," but ask about concrete figures.For metal nameplates, the tolerance is at least 0.005 mm. For precision electronic components, it is 0.003 mm or less.

The software interface should be in Chinese.

After having seen too many old pros stumped by English-language interfaces, he chose a brand with online upgrades and local service.

If maintenance is done well, then equipment lasts longer.

Calibration is performed every month.

Don't wait for the picture to distort before checking the equipment; use the calibration board that comes with the set to make periodic tests.In humid summer weather, it is suggested that you adjust the clock every two weeks.

* Clean the cooling fan regularly.

The best operating temperature for a galvanometer is 25 to 35 ° C, but if dust accumulates in the heat sink, the life of the galvanometer will be reduced by 40 %.Use a small paint brush to clean the radiator once a month.

Don't just use the dust cover as a decoration.

Metal dust in the workshop is the nemesis of galvanometers. Remember to cover them up with dust covers after turning them off.The technician recommends that I buy an air filter box for NT $ 500. This will extend the life of the mirror by two years.