When laser is in use the cooling fan on laser turns on. When the job is complete the fan stays on for a period of time until laser module is cool down then fan turns off. This is normal operation. When i start a job and at some point press “Stop” in the laser control panel everything stops, both laser and cooling fan. Shouldn’t the fan continue to cool the laser module? It seems cooling would be a function of the laser not software but when “STOP” is used that shows the software has some control over the cooling fan.
Question is am I missing a setting somewhere to keep the fan on until cool. Is this a bug that I never noticed before or maybe something overlooked in the software development that can be changed to allow cooling fan to operate as stated as normal operation. I know the cooling fan is mostly for while laser is in operation but there is a reason for the cool down period.
The “STOP” signal is probably being interpreted as an emergency stop (which shuts everything down) and not as a convenience stop, as seems to be the case.
Thanks for the reply. I understand the fan function is built into the laser firmware. It seemed as gilaraujo alluded to is that the stop functions like the emergency stop button Ortur build into the machine. I guess Ortur figures lack of cooling when beam is off has little effect with laser damage but then again firmware fan delay says different. Emergency stop is for emergencies.Lightburn does have a pause resume function that pauses the stream yet allows the cooling fan to continue. I’m not a programmer but seem if the stream can be paused it could be terminated. Just a thought for a different way for stop to work laser friendly vs using a command the manufacture has available in the firmware.
I can use pause wait then stop manually as I use stop only when something doesn’t cut threw and i use the preview and start here function a few times over the bad area to finish the cut.
I understand your point of view. What I can add to try and clarify (if I understood your question well) is that in the case of machines with GRBL commands, when you pause a job you interrupt the data flow between the computer (software) and the laser machine’s controller board, which goes into standby mode ready to continue the job at any time.
When you stop a job (through the software), before interrupting the data flow, the software sends a command indicating that the job has finished. I don’t know if when you stop a job through software the fan continues to work for some time longer or not. However, this is already managed by the controller board’s firmware through a command code sent by the software.
When you press the “STOP” button on the controller board, you are simply interfering with a digital command port (open or closed), and it depends solely on the controller board’s firmware what to do with that digital port.
I also don’t know if Ortur has any updates for the controller board that would do what you want; however, it’s likely possible to modify it if we know which controller board is installed. But this requires some knowledge and, as was my case, some courage to risk “losing what you have” if it’s not done properly.