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Hello Thorgal,

I am making a printer (HangAround) using the 28BYJ Steppers in combination with a RAMPS board but it cannot be run above 100mm/min before losing steps. This seems far below what is possible.

The odd thing is that it seems possible to run at some higher speeds. 1000mm/min works fine while others (200 mm/min) does not. Any hints what could cause this?

The stepper drivers are tuned down to a level where the steppers run hot to the touch but I can still keep my finger on them so there should be enough current available for speed. Maybe I should try microstepping? Right now they are running at full steps

I use the forum for HangPrinter for my design. It is a cheap, low budget version of that design. https://www.facebook.com/groups/hangprinter/

Any tips you can give would be appreciated. Thanks