# Tag Info

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

First of all, there are some nice open source analyzers written in JavaScript that you can use online, or read the source to, at https://www.gcodeanalyser.com/ and http://gcode.ws/. Their predictions ...

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

I have tried looking into the printer firmware to see how the Acceleration setting affects the machine movement. From what I could tell, Acceleration seemed to be implemented differently depending on ...
• 636
Accepted

### How to theoretically calculate the maximum acceleration?

You do not appear to have a correct understanding of how microstepping affects torque. What is calculated in the article you refer to is incremental torque. The word "incremental" is very important. ...
• 14.5k

### Marlin acceleration issue on corners

It seems that Marlin adjusts acceleration just for print speed, without adjusting it too for the extruder, so the extruder extrudes a constant amount of filament, which on slow speeds (corners) ...
• 14.5k
Accepted

### Acceleration with Marlin

Your steps/mm settings are very high. Assuming you are running an ATMEGA based controller, like RAMPS, you will only be able to move at very slow feed rates (<20mm/s). There are also many hardware ...
1 vote

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

The answer depends on the kinematics model in use. In Marlin there are at least: Classic jerk The "jerk", in units of mm/s not the expected mm/s³, is actually a "maximum instantaneous ...
1 vote

### Replacing jerk with ridiculously high acceleration?

In order to evaluate whether this is possible, it's necessary to realize that following a curved path with zero jerk (in the classic jerk sense) requires stopping and restarting at each junction point ...
1 vote
Accepted

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

While I first experienced layer shifts a couple times before upgrading, only while using extreme acceleration settings (3000 mm/s² is fairly extreme for moving the bed), their regular occurrance, ...

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