Hi guys,

the last year i manage to build my onstep on a exos nano eq3, it is working wooooonderfull for AP, but now i decided to change the mount to something bigger EQ5 (and be able to add a bigger guidescope and scope in the future) 

This is the question, i saw that sometimes my mottors stall (when i slew over 3.0 deg/sec or when the telescope isnt well balanced) seems like a lack o force i currently have TMC2130 drivers with a 12v 5A laptop adapter and:

• x2 STEPPERONLINE 0.9deg Nema 17 Stepper Motor Bipolar 0.9A 36Ncm/50oz.in 42x42x39mm 4-wires -> LINK

since im thinking in a bigger scope should i change the mottors for :
Option 1 2A 0.9deg https://www.amazon.com/-/es/STEPPERONLINE-0-9deg-65-1oz-1-654x1-890-impresora/dp/B07Z1D1ZJY
Option 2 1.68A 0.9deg https://www.amazon.com/-/es/STEPPERONLINE-Bipolar-0-9deg-pasos-62-3oz/dp/B00PNEQMLY

Or the lack of force is coming from the drivers? should i change them for TMC5160?

Should i change both drivers and motors?


Thanks for your replies