What happen if printing without cooling fan blowing to part and no heatbed (PLA) , it’s bend? And how to prevent if happen bend or warping.
getting the perfect z offset is very important
My printer has no partfan and no heated bed. PLA prints just Fine All depends on the level of tweaking you did…
That is part dependant. Generally a part fan will give you the ability to print fine details or overhangs much better. A heatbed can help when printing objects with a bigger ground surface. From my experience it tends to warp lesser (with brim). This effect can be masked by a very good adhesion to the bed. On clean glas it helps pretty much.
The main thing you have to worry about is adhesion (bed has to be leveled well for good adhesion and your z-offset needs to be tuned), if you can get a strong bond to the bed in the beginning your print should be able to not only keep itself on the bed but also prevent warping that would happen from it peeling itself off the bed.
The vertical layers can sag, the surface finish will not be as good
Does anyone have a simple circuit that they have used to control the speed of a CPU fan?
I use a 12vt brushless 40mm fan for cooling and want to be able to control the speed. I have tried three different designs and none have worked at all. Has someone actually made one that works?