radically different print times between printers

Xeddog · October 10, 2019

I have a model that I use to see how my printer is doing. It is a 100mm tall cylinder with a 20mm OD and 10mm ID. Today, I decided to run it on two different printers. One is a CR-10S, and the other is a Monoprice Mini with E3D V6. Slicing the model for the Mini gives me an estimated time of 1hr 29min. Slicing the same model for the CR-10S with almost the same settings gives me an estimated print time of 4hrs 36min. I know these are estimated times, but they were not that far off. I have been through the settings several times, and there is nothing that can account for a 3-fold increase in time for the CR-10S. Speeds are the same (100mm/s), and the acceleration/jerk settings are a little lower on the CR. 1000/10 on the Mini and 800/8 on the CR. Even with the speed set at 100mm/s, my uncalibrated eye says the CR isn't going anywhere near that speed. Any ideas what gives???? Maybe something about incorporating the Creawesome mod?

Thanks,

Edit: I just created a Custom FFF printer with the same settings as the CR-10S and reran the slice. The estimated time was 1hr 40min. It does look like something in the Creawesome mod.

Edited October 10, 2019 by Xeddog
New Info

DivingDuck · October 11, 2019

Check your Cura printer profile with the plugin "Printer settings" of fieldOfView. Take a closer look for values of speed and acceleration and compare this with your firmware values. Then you know what's going on...

Xeddog · October 11, 2019

Attached is a screen shot of the printer settings for CR-10S on the left, and a custom FFF for the same printer on the right. Even though there is a huge difference between some of the speeds, the maximum X and Y speeds are still below the 100mm/s max that I am trying to use. Acceleration is 500 for the CR-120S definition, which is a little slower than the 800 - 1000 I normally use, but still doesn't seem like near enough to account for a threefold increase in print time. Default XY Jerk is 10 which is what I normally use anyway.