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# Questions tagged [acceleration]

For questions regarding troubleshooting or setting up hardware acceleration settings for a 3D printer either digitally or electronically.

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### What does the velocity profile of the motors look like when they change direction?

The stepper motors usually have a constant acceleration profile (trapezoidal profile) of an even jerk limit profile (S-curve profile). In linear motion, it seems possible to conserve proportion ...
• 169
1 vote
33 views

### What specifics do models need to have to estimate the maximum acceleration my printer can withstand?

Previous questions on the topic of setting acceleration are: How to theoretically calculate the maximum acceleration? (theoretical calculation) How do I determine the acceleration value for my printer?...
• 3,786
2k views

### Replacing jerk with ridiculously high acceleration?

After a string of one problem after another with both classic jerk and junction deviation in Marlin, and coming to understand that the whole mathematical model for both of them is rather bogus (as I ...
836 views

### How to theoretically calculate the maximum acceleration?

I would like to calculate the maximum safe acceleration for my printer using the following parameters as input: printhead weight torque at the desired speed steps/mm and steps/revolution microsteps ...
• 3,786
2k views

### Ender 3 has developed a tendancy to skip Y steps

Recently my Ender 3 has developed a problem of skipping Y steps (layer shift in the Y direction), and it seems to be getting progressively worse. I'd never experienced layer shift before a few weeks ...
4k views

### Acceleration with Marlin

I expected that the movement of an axis would start slowly, become faster and then run at a constant speed when reaching the maximum speed, then slow down slowly and arrive at the target point at the ...
• 133
2k views

### Marlin acceleration issue on corners

I use Simplify3D to slice my prints, and I've set it to print everything with 4000 Acceleration and 50 Acceleration for outer perimeters only. Everything works fine, Marlin changes acceleration ...
• 595
7k views

### Calculating the estimated print time of an already sliced file

I started to write an application that calculates the estimated total print time from the G-code file for an already sliced model. The program works and it's pretty accurate. It works as follows: ...
• 595