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| DIY Vapour Phase Frying Pan Project |
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| trevwhite:
I think a Controleo3 might be able to control a setup. It seems to have some fancy profiling command set and also intelligent PID control. It seems very flexible and source code is open for any mods. Looks like a lot of work has gone into it. Anyone used one/can recommend? https://www.whizoo.com/ Trev |
| wraper:
--- Quote from: trevwhite on December 16, 2019, 05:22:33 pm ---I think a Controleo3 might be able to control a setup. It seems to have some fancy profiling command set and also intelligent PID control. It seems very flexible and source code is open for any mods. Looks like a lot of work has gone into it. Anyone used one/can recommend? https://www.whizoo.com/ Trev --- End quote --- Unless you write your own firmware, it won't work properly with vapor phase. It's nothing like controlling usual reflow oven. Simply slapping PID won't do the job. Given that you want proper temperature ramp. Not 100oC PCB temperature and after 20 seconds solder already melted. |
| trevwhite:
Hi, Wraper. Could you give a bit more detail on why it wont work? I know it's buried in the other thread but is there a link to the ideal profile for vapour phase? I moticed the controleo even has a servo out. Might be possible to automate lifting the board up to help with cooling. |
| wraper:
--- Quote from: trevwhite on December 16, 2019, 09:27:00 pm ---Hi, Wraper. Could you give a bit more detail on why it wont work? I know it's buried in the other thread but is there a link to the ideal profile for vapour phase? I moticed the controleo even has a servo out. Might be possible to automate lifting the board up to help with cooling. --- End quote --- Because you basically need to regulate height of vapor phase, not it's temperature. |
| trevwhite:
So once vapour reaches the right height then its just about dropping power delivery to maintain the height or temperature. So I think that can be scripted in the controleo3. Phase 1 would be to heat it up and then once it reaches above a temperature, phase 2 would implement a second pid control specifically to maintain the temperature which would reduce the power delivery dramatically. The last thing is how to cool the board down quick enough. |
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