I use Creality Print 5.1 and a CR-10SE.
I am getting quality results but sometimes I wonder what speeds it actually travels at compared to settings in the slicer. After learning G Code commands I examine the code and there are discrepensies.
Commanding the Outer Layer Speed 200mm/s should result in a G-Code mm/minute of F12000 (200 x 60). And it does. See pic below.
These speed discrepensies are all over the G Code and I’ve simplified it here to show an example that would be easy to see.
This isn’t a huge problem but more of trying to understand how the slicer determines these speeds.
I thought at one point it was a percentage setting but it does match any percentages in the slicer at all. For example commanding it to 300mm/s should create G code F18000 but instead shows F15122.013 resulting in 84.011%.
Just to update anyone reading this, I have found whats going on. If I change the Wall Thicknesses smaller the speeds follow what I set. I suppose this is because with a 0.4mm nozzle only so much flow can occur, and so if the walls require a certain flow to obtain the thickness the printer needs to slow down at a calculated rate.
Cheers,
I don’t use creality print, but I suspect that you have figured out the issue. There is probabaly a setting on creality print called “max volumetric flow” or something similar (several slicers have this).
Max volumetric flow is the maximum amount of plastic that your printer can melt and send through the nozzle. It is a product of speed, layer height and line width. So if you push the layer height, line width, or speed too far, you will go over what your printer is capable of, and creality print will automatically slow it down to prevent under extrusion.
You can probably adjust the max volumetric flow number in the slicer to allow to go faster - if you have upgraded your hotend, or tested your hotends max volumetric flow and found that it can actually do more than creality print thinks it can.
Thanks for chiming in on this.
And yes I eventually figured out what was happening.
I will use your advice to test flow out and maybe upgrade some parts to see what I can do!
Cheers
