Getting wrong measurements on my Kossel Linear Plus after installing SKR 1.3 with Marlin 2.0 So I've switched the Trigorilla board in the printer with a SKR 1.3 with TMC2208 drivers and installed the latest Marlin 2.0, with a config based on this one. You can find the Configuration.h here, the only thing I changed in Configuration_adv.h was the pin of the hotend fan. 

Now when let the printer autocalibrate the delta settings, it tells me that the height is 141.35&nbsp;mm, instead of the actual ~300&nbsp;mm and I had to set the radius to 78&nbsp;mm, instead of the actual 115&nbsp;mm so that it doesn't try to probe outside the bed.

What settings could I have set so horribly wrong that I get these results?
So the problem was that the TMC2208 were wired for UART mode, yet Marlin was configured for standalone, which apparently makes them work, but with completely wrong step sizes. Changing it in the configuration completely eliminated the problem