please allow me to manually set a constant chamber fan speed in prusa connect/slicer
Right now, you can have a target and minimum temp in the slicer, and the printer will try to follow that. However I have a DIY active charcoal filter on the back from CNC kitchen on printables. I Print a lot of ABS recently its my new favourite filament, so right now I need to baby sit the printer and manually turn on the fan so there always is positive pressure to reduce smell.
I would appreciate an option in the slicer to always have the fans on at 5%. Also why can't I set the chamber fan speed in Prusa connect?
RE: please allow me to manually set a constant chamber fan speed in prusa connect/slicer
I would love to see it, or a way to set it in the firmware without having to go to the printer each time.
RE: please allow me to manually set a constant chamber fan speed in prusa connect/slicer
Not sure if this needs mentioning, but this forum isn't really the best place for feature requests etc.
I was looking around the forum last night around 10PM, I noticed at the bottom of the forum page it showed there were a whopping 10 users online. This forums activity level is tiny compared to platforms like Reddit. I doubt this forum is even looked at by Prusa employees.
For a start there could be a way to do what you want , and thousands of views on Reddit is much more likely to garner a response than a post on here.
Prusa employees are much more likely to see a post on Reddit and register your interest in this feature than on here.
Personally I find this forum a much nicer and polite place than Reddit, which seems to be full of impatient and ignorant people...but probably the best place to request features.
RE: please allow me to manually set a constant chamber fan speed in prusa connect/slicer
You can do that with gcode. Just add a M106 gcode command to set the fan to a constant speed at the end of your start gcode, e.g. M106 S255 P3 (S is the fan speed from 1 to 255 and P is the fan index, 3 are the chamber fans and 4 is the filtration fan).
But if you do that, you also need to switch the fan back to auto mode before the M141 command in the end gcode! Otherwise you will get a "Chamber does not allow temperature control" error and the C1 will very loudly complain about this. Just add the following gcode snippet right before the M141 command in the end gcode:
M106 P3 R M106 P4 R G4 S1
RE: please allow me to manually set a constant chamber fan speed in prusa connect/slicer
All feature requests need to be made at the appropriate Prusa Github repo. Not the forum as you have correctly surmised. The Dev's do not monitor or hang out here.
For Prusa Slicer it is https://github.com/prusa3d/PrusaSlicer/issues
For the printers that use the Buddy board like the core one and XL etc it is https://github.com/prusa3d/Prusa-Firmware-Buddy/issues
There are others for slicer settings, older printers like MK3 etc. Please do a search of both open and closed issues before opening new ones though as there are a lot of them already and duplicates should be avoided. Also Prusa are not the most responsive when it comes to these things. Some issues have been open years for example in the Prusa Slicer repo.
Taking a quick look at the Buddy repo there are many existing that show if you search for chamber fan.
On the M106 suggestion, I'm afraid that wont work. That's for the parts fan speed. I'm not sure Prusa have even programmed a dedicated chamber fan speed and it would need to be linked to a suitable Gcode command of its own to drive it, unless they add a fan parameter to the existing one. Lots of potential changes there, to both PS and the printer firmware. Depends on what's implemented. Don't have a Core One so can't experiment.
RE: please allow me to manually set a constant chamber fan speed in prusa connect/slicer
On the M106 suggestion, I'm afraid that wont work. That's for the parts fan speed.
Trust me, it works. I use it all the time. M106 not only controls the parts fan but all fans. You select with the P parameter the index of the fan you want to control. I don't know off the top of my head right now the fan mapping for indices < 3, but index 3 are the chamber fans and index 4 is the filtration fan.
RE: please allow me to manually set a constant chamber fan speed in prusa connect/slicer
Thanks for the info, that would be the Parameter I mentioned in my post "unless they add a fan parameter to the existing one". So if they have already implemented that in the Buddy printer firmware then yes the place to get a change/feature request in is on the Prusa Slicer repo.
RE: please allow me to manually set a constant chamber fan speed in prusa connect/slicer
All feature requests need to be made at the appropriate Prusa Github repo. Not the forum as you have correctly surmised. The Dev's do not monitor or hang out here.
I think this is where Prusa need to be a bit more accommodating to the average user.
Not every Prusa user has a GitHub account. I bet many don't even know what Github is.
RE: please allow me to manually set a constant chamber fan speed in prusa connect/slicer
You will come to the realisation that prusa quite often are not accommodating. They have a process in place, you either use it or not. Although even with that process there are bugs and requests that on the face of it seem simple to resolve but have languished for literally years.
Social media campaign, especially if you can get one of the 3d printing 'influencers' on board to highlight a specific issue can sometimes get priorities moved but in general what they are working on is opaque and internal. Also new flashy things seem to get a lot more priority than fixing outstanding issues. Not an uncommon stance though, many companies do the same.