Going with the Flow
Posted: 30 Oct 2017, 23:06
I know Michael Hackney is working on a flow wizard tutorial but I'm kinda impatient and just wanted to run a few things by you all here and solicit some feedback. I'm trying to tune my nylon filament. E-steps are calibrated (Thanks Michael for the jig), and I'm working thru the Flow wizard now. With regard to starting and ending values, I don't really have a good understanding on what values are ideal here. I took a stab and went with 2.5 for the high end and 0.5 for the low and ran the test print via the wizard. Not quite sure how to interpret the print but I do see areas where there seems to be some surface "warpage" (see attachment) so I measured up to the point where that seemed to fall off and threw that into the Wizard.
Plugging in the measurement says that 0.58 is what my flow should be set to. OK, so I haven't run a test print with this setting but I can confirm that using 1 seemed a bit over-extruded on a print I ran earlier. Anyway, I jumped over to the Preload wizard and I need to populate the Viscoelasticity wizard with some flow values. It says to use a value that is in the middle of the values I have set for the material under min and max (mm^3/s) for flow. Problem is, assuming my correct flow rate should be 0.58 like I calculated via the wizard, should that be my max or should I still use a range for Min and Max? This is as far as I ever get. Every time I get to this point I'm not sure where to go so I figured I'd ask. While we're at it, I'd like to know what value I should use for Cool (mm^3/s).
Plugging in the measurement says that 0.58 is what my flow should be set to. OK, so I haven't run a test print with this setting but I can confirm that using 1 seemed a bit over-extruded on a print I ran earlier. Anyway, I jumped over to the Preload wizard and I need to populate the Viscoelasticity wizard with some flow values. It says to use a value that is in the middle of the values I have set for the material under min and max (mm^3/s) for flow. Problem is, assuming my correct flow rate should be 0.58 like I calculated via the wizard, should that be my max or should I still use a range for Min and Max? This is as far as I ever get. Every time I get to this point I'm not sure where to go so I figured I'd ask. While we're at it, I'd like to know what value I should use for Cool (mm^3/s).