How to Increase the Efficiency of Galvanometers by 30 %

By adjusting key parameters such as the galvanometer's scanning speed, acceleration, and delay time, and combining hardware matching and software calibration, the performance of the galvanometer can be significantly improved.The company also shares practical methods to help engineers and technical staff quickly optimize parameters and achieve a 30 % increase in efficiency.

Why are parameters so crucial to the efficiency of galvoscanners?

Scanners are widely used in laser processing and 3D printing, but many users report that their efficiency is not optimal.The problem may be that the settings are not correct. For example, the scanning speed may have been set too conservatively, or the acceleration may not match the actual needs.Parameters are like a steering wheel. Only by adjusting them properly can the equipment run faster and more stably.

Core parameters for improving efficiency.

The balance between scanning speed and acceleration.

A faster scan is not necessarily better.If too fast, it will cause the mirror to shake, lowering its precision.First set the basic speed according to the material you are working with (for example, medium to low speed for cutting metal), and then gradually increase the speed.When testing, you can use a "step method": Increase the acceleration by 5 % each time, and observe the stability of the mirror. When the mirror starts to shake, you can then reduce the acceleration by 3 % to 5 %.

Precise control of the delay time.

When the mirrors change direction, there is a tiny delay. This is a factor that is often overlooked.For example, too much lag time when moving from one point to another can slow down the overall tempo.The software includes a "position jump test" function that can accurately measure actual delay, and then reduce it to the minimum value possible given the equipment (usually 0.1-0.5ms).

Match the drive current with the load.

An inadequate driving current will result in sluggish response of the galvanometer mirror.For large lenses or high-frequency scenes, it's necessary to increase the driving current.But don ’ t exceed the physical limits. For example, if the rated current of a certain model mirror galvanometer is 2A, it is recommended that you start with 1.5A and increase in 0.1A steps, while monitoring the temperature changes.

The hardware optimization that is often overlooked.

Checking the heat dissipation system.

High temperatures will directly lower the performance of the galvanometer.Clean the dust from the heat sink and check the thermal grease.If the equipment is going to be run at high loads for extended periods, a supplemental heat sink can be added to ensure that the temperature stays below 35 ℃.

The signal lines are treated to prevent interference.

Signal interference can lead to deviations in the execution of parameters.Use shielded cables and avoid running them parallel to high-voltage lines.In one case, a factory adjusted its parameters and raised its efficiency by only 10 %. Later it was discovered that the problem was electromagnetic interference from a nearby variable frequency drive. After a magnetic ring was added, the factory's efficiency immediately reached the desired level.

Methods for verifying that the parameters have been optimized.

Don't just turn it off and walk away. First run a standard test pattern (such as a grid or concentric circles) for 10 minutes and observe whether the edges are smooth.The movement of the camera is then recorded on a high-speed camera (at eight times the normal speed or more), to check for any shaking or lag in the movement.The final step is to record the time needed to process each set of parameters and select the most stable set as the standard.

Building a parameter data base.

Different materials and different patterns may require very different parameters.It recommends saving parameter templates according to "material type + processing precision," such as "stainless steel-finely engraved" or "acrylic-rapid cutting.The next time a similar task comes up, the template can be called up and adjusted, saving at least 50 % of the debugging time.