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SoliForum - 3D Printing Community → Help/Repair/Maintenance → bed temp
Before I even load a object in RH , I preheat the bed. Then I slice.When the bed reaches 95, I see a lot of fluctuation , won't hold steady. Then when hit run job , most of the time it will drop of couple of degrees and then rise back up. Very annoying.
Anybody else experience this? I have a SD3 .
all the time
A few degrees of variance on the bed temp won't significantly affect your prints.
Before I even load a object in RH , I preheat the bed. Then I slice.When the bed reaches 95, I see a lot of fluctuation , won't hold steady. Then when hit run job , most of the time it will drop of couple of degrees and then rise back up. Very annoying.
Anybody else experience this? I have a SD3 .
Tried doing PID autotune?
satman49 wrote:Before I even load a object in RH , I preheat the bed. Then I slice.When the bed reaches 95, I see a lot of fluctuation , won't hold steady. Then when hit run job , most of the time it will drop of couple of degrees and then rise back up. Very annoying.
Anybody else experience this? I have a SD3 .Tried doing PID autotune?
On the bed?
ahh if I knew how lol
satman49 wrote:Before I even load a object in RH , I preheat the bed. Then I slice.When the bed reaches 95, I see a lot of fluctuation , won't hold steady. Then when hit run job , most of the time it will drop of couple of degrees and then rise back up. Very annoying.
Anybody else experience this? I have a SD3 .Tried doing PID autotune?
Another vague useless response...anyone besides me surprised shitless.
Assuming it is properly enabled in your firmware...I've posted a how to several times the instruction "for after" the firmware is un-commented correctly: Google "Jeffery Sanders PID bed auto-tune" or something like that...and I am sure it will pop up 80)...not to mention it tell you how-to in the firmware comments right below where you need to remove the // to enable PID bed temp control.
solidoodlesupport wrote:satman49 wrote:Before I even load a object in RH , I preheat the bed. Then I slice.When the bed reaches 95, I see a lot of fluctuation , won't hold steady. Then when hit run job , most of the time it will drop of couple of degrees and then rise back up. Very annoying.
Anybody else experience this? I have a SD3 .Tried doing PID autotune?
On the bed?
Ya...Lawsy's "updated firmware" had this patched in from the main repo months ago (that's how I knew to buy a Fotek SSR to use on the QU-BD SilMat heater...which was a godsend for print adhesion on 2+ hour prints)
It might have been more helpful if you had pointed him to a URL that contained the instructions for doing the PID autotune...
satman49 wrote:Before I even load a object in RH , I preheat the bed. Then I slice.When the bed reaches 95, I see a lot of fluctuation , won't hold steady. Then when hit run job , most of the time it will drop of couple of degrees and then rise back up. Very annoying.
Anybody else experience this? I have a SD3 .Tried doing PID autotune?
It might have been more helpful if you had pointed him to a URL that contained the instructions for doing the PID autotune...
solidoodlesupport wrote:satman49 wrote:Before I even load a object in RH , I preheat the bed. Then I slice.When the bed reaches 95, I see a lot of fluctuation , won't hold steady. Then when hit run job , most of the time it will drop of couple of degrees and then rise back up. Very annoying.
Anybody else experience this? I have a SD3 .Tried doing PID autotune?
+1
it's in the config.h
M303 E1 C8 S90
C cycle 8 times
S 90 temp
But you'll probably have to turn on that define at compile time.
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