Can I use PID tuning with SSR on heater bed?
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Hi guys.
I have a 220 v heated bed. Safety features are grounded lines, temp fuse, home assistant monitoring temperature and cut line if needed.
I am using bang bang regulation but I would like to switch to pid because teh 1 C° fluctuations make some banding on the print.
Can I safely use pid regulation on an SSR MOSFET
Mine is a crydom d2425Thank you
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@claustro , yes!
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@claustro
No issues.
See here for suggestions including frequency etc
https://docs.duet3d.com/User_manual/Connecting_hardware/Heaters_bed#bed-heater-driven-using-a-solid-state-relay -
I would like to switch to pid because teh 1 C° fluctuations make some banding on the print.
Sure you can use PID, but I doubt its effect on the banding you encounter. Can you post a sample image of that?
Note of caution: try to print some kind of clamp to cover the contacts 1 and 2 of the SSR, the screw heads carry high voltage.
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@infiniteloop I am in the process of reducing all possible bending sources in my print, and then I came across this article. So I decided to get rid of this variable
Thank you for your suggestion .
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@claustro Thank you for the link. I couldn’t imagine the impact on layer height of the effect. Please keep us informed if PID helps.
