The fan has three smart modes: 9 hours timer, natural wind, sleep wind mode and 6 speed settings to meet your various usage needs. But again, I think you are working on symptoms instead of curing the cause Just put the laser into an enclosure (where it is supposed to be) and don’t change the behavior of the fan.

With remote control, height adjustment, and 8-speed settings, you are sure to stay cool and comfortable. Perhaps I should contact Sculpfun and check with their „engineers“ (although I doubt that they have in-house engineers; I bet these are mostly off-the-shelf parts purchased from smaller Chinese suppliers/engineering companies).Typical diodes are already driven at the edge of specifications and temperatures above 25°C will already lead to a decrease in lifetime. Do I get this right: Is the PWM (Pulse Wave Modulator; just to show that I’m aware of the meaning and general function) used to control the laser’s intensity? I suspect for Ortur laser modules they’re designed to have the fan on anytime the laser is being commanded through PWM. The inner layer (7 blades) produces a rotating wind channel, and the outer layer (11 blades) produces a eight-shaped wind channel to spread the wind all around and farther.

I’m interested in the schematic to understand what the board is capable of measuring and controlling with regards to the laser head and its attached fan. Another workaround with the standard firmware would be to use the relay output that is intended to control the air assist to turn on/off the power line of the laser module. The innovative design of the new DF0050 White Tower Air Circulator Fan provides 105W of cooling power, making it the most powerful tower fan in the Igenix range. Upgrading your shower with a turbo shower head will not only improve the quality of your showering experience, but it can also help you save on water bills and reduce pressure on vital resources.

But really care about the air volume provided, otherwise you will again shorten your diode lifetime very much. Question is whether there is a GRBL command in Lightburn to de-activate (or spin down) the fan unless the Laser becomes activated? For the S10 laser module I’m going to assume Sculpfun had a difficult time with heat management and just decided that they would run the fan on full all the time just to be safe. And your assumption is that a very low PWM signal – to weak for the laser to turn on – is somehow identified by the board on top of the laser head to activate the fan?

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The fan is connected to the laser module board and as soon as this board is powered up, the fan is running. If I had to guess I’d assume that the controller is sending a very low PWM signal to keep the module active but not high enough to fire the laser. berainlb is probably correct with his speculation they are using the pwm to let the fan run an extended period via the pwm control.

Fan used to turn off immediately after laser turned off but a firmware update made the fan stay on for some time to allow for additional cooling. Also remember any in the base, although 'head' suggests not) and all looms etc connect back to the control, then the issue could be components in the driver/sense circuit or less likely firmware glitch. The tower itself oscillates the 3 fan heads providing uniformed cooling across the room to keep everyone cool on those hot summer days. But I guess the easiest thing is a good enclosure, then the noise will be reduced to a very low level.