RoboxPro : filter Fan
A small question to people working on robox pro :
- when do you see the filter fan running ? I think I've never seen it running. It's new compare to the normal robox, and I appreciate that robox team has integrated it on the pro model, but honnestly, I don't know the real function.
Please, share your experience.
@lobat37 The fan should run whenever the internal temperature exceeds the target internal temperature. If you are running a small print in a cool room the printer internal temp may not ever reach the point where the fan turns on. If you suspect your fan isn't working, please open a support ticket.
@olivier-masson It is currently purely controlled by the ambient temperature setting i.e. if the temperature exceeds the ambient temperature of the loaded material (stored on the reel EEPROM), then the fan will begin to run. It is variable speed PWM controlled, so the greater the temperature difference between the setpoint and actual temperature, the faster the fan will run. You can test it is functioning using M170 S[10-60] - if you send M170 S10, it will try to cool the build chamber to 10°C and therefore the fan should run at 100%. If you set the temperature to just below ambient i.e. M170 S20, it will run more slowly, and if set above ambient, it will turn off again.
We are considering adding a steady state running speed for filtration purposes - at the moment it just tries to maximise the temperature of the build chamber for the majority of materials.
The command works perfectly.
Then, I confirm the fan of my roboxPro is working. :-)
I also understand why I never see it turning because of the reels profiles. The ambiant temperature is everytime high in the profiles, so no need to cool.
By the way, is there an advantage to have a ambiant air at 60°C for exemple instead of 25°C ?
Does it increase the print quality ? I have another printer which is a stratasys mojo, and for this printer, the machine start by heating the ambiant air, before starting to print. But this printer only print ABS...
Once again, thank you Chris.
A suitable ambient temperature of the build chamber decreases warp in some materials. In the past for ABS it is nice to have it at around 50°C in Robox. Since we started using TitanX as our main ABS material the warp issue has reduced. It is likely that the ambient temperature can also be reduced.
For official support please create a support ticket using this link www.cel-robox.com/support/