The big question: how much stronger is structural. 

Hi, Stefan CNC Kitchen has given a deep answer on the topic Here  😉

just two days ago I have done a print, and looking at the MK3.5 printing I though that it was exactly the MK3S. No speed increase. Slow as usual.

After the print I realized I used the wrong profile, and with the correct profile, it was running like the MK4 😆 

The STRUCTURAL is the slow MK3S like, while the SPEED is the MK4 IS like.

You can detect also from PrusaSlicer profile compare.

Regards

No Input shaper for the MK3.5

Some users are saying that using IS will wear out your printer quicker because the print speed is quicker. Aren't they actually saying that a quicker print speed wears out the printer more quickly? 

And as comment above about thin layers, just copy the relevant parts of the MK3s profile to your own custom MK3.5 profile. 

The comment about the extruder being at it's limit at 0.2mm layer height, I don't understand that. You can't saying anything meaningful about extruder capacity without knowing speed (volumetric flow rate) and nozzle diameter. For example, I regularly print with layer height of 0.55mm and it works fine. What does that tell you? Not much without knowing speed, nozzle size etc. 

Posted by: @jonathan-newman

Running the printer slower will not give me back layer height profiles.

thank you very much for your tests and the pictures.
Unfortunately, I had no comparison with the mk3s+ as I hadn't printed the part there. But it looks the same for me. At first I thought I should print it upright, but that doesn't work at all with the blade at the top.

I hope the statement from "hello" is not correct or is retracted again - "Update, from the devs. The prusa mk3.5 doesent have and wont have non input shaping options. By the sounds of it. "
I can also confirm the holes in the edges that were pointed out in another post. Hope this gets even better.
Has anyone already tried the firmware FIRMWARE 5.2.1. unfortunately I have not found a changelog.

THANKS and best regards Lambert

Hello, I ordered my 3.5 upgrade kit on the first day it was awailable.

Made some tests and was quite satisfied with it.
But printing small parts is an issue, so I was also searching for the slicer profile without imputshaper.
Is someone able to print this on an 3.5 without issues.

https://www.thingiverse.com/thing:4126294

Thanks ahead
Lambert

When you say without issues what do you mean? I printed it on one of our mk3.5's and a mk3S+ on the default .1mm layer height settings and the results were pretty similar. I had a decent amount of stringing and some underextrusion on both but I used some random silk pla that was laying around and the generic pla setting so that might be the cause. The top of the prints were pretty decent but the bottom was pretty bad on both because of the support. The orange one was on the mk3.5 and the yellow was the mk3S+. 

Made some tests and was quite satisfied with it.
But printing small parts is an issue, so I was also searching for the slicer profile without imputshaper.
Is someone able to print this on an 3.5 without issues.

https://www.thingiverse.com/thing:4126294

Thanks ahead
Lambert