Sensors for the input shaper  

RE: Sensors for the input shaper

As far as I know, there are no sensors. But I've heard about a free connector on the board. But not sure about it.

RE: Sensors for the input shaper

How should a sensor increase the speed in purely technical terms?

RE: Sensors for the input shaper

Yes I have heard that

Dhanks

RE: Sensors for the input shaper

If you make changes to the printer, the input shaping must adapt. Once you reach a certain speed, you can no longer work with standard values. 

RE: Sensors for the input shaper

The speed has nothing to do with input shaper at all. The printer is just as fast with input shaper as without.

The difference is the results.

Until now, you had to print at the speed and acceleration where the effects were least. With input shaper, you can now filter out the resonance peaks.

To do this, you have to know where the resonances are. This can be measured with a test print or with an accerolometer.If the values fit, it does not matter which method was used to determine them.

Correct is if something is changed at the printer the resonances can shift and must be adapted. Otherwise, the print quality will be worse again.

I have used my MK4 with a test print. There you can see the effects well.

I do not think that prusa will bring a sensor for the mk4 in the near future. But the sensor should work on the MK4.  The development team is working with it.

So I don't quite understand why they don't offer it as an aftermarket solution. Whether useful or not.

The XL is supposed to have one. But a CoreXY is also somewhat more sensitive than a bed slinger.

RE: Sensors for the input shaper

The input shaper influences the results, so for very precise production you have to go slower. so he has an influence. I work in the mechanical area and it's exactly the same there.

In order to be precise at maximum speed, each printer has to shape its own input. Prusa is open source so there are a lot of variations, my values will not fit others.

RE: Sensors for the input shaper

You're right so far. Here is an interesting post from @Rainer: https://forum.prusa3d.com/forum/input-shaping/input-shaper-with-klipper-testprint/. It covers the topic with individual settings

RE: Sensors for the input shaper

Input Shaper does not only have advantages. I think it depends very much on what you print. If it is as accurate and good as possible you will have to reduce the speed.

Opinions differ whether you absolutely need a sensor at a bed slinger or a test print is enough. In my opinion not necessarily. But a sensor would be a nice to have.

But I don't want to argue, you can see either way.

In terms of marketing, it would have been better for Prusa with a sensor on the MK4.

Just like the new flow sensor in the Bambulab A1. There is no more filament and he doesn't even notice it, wherever he should even regulate the filament flow.

For me, like Lidar in X1C. If you have a P1P, it doesn't print worse without lidar.

Only the result is important, and that fits my MK4. Mostly, as with all printers 😉