Hi guys,

I would like an opinion on Z ballscrew 1605 1:1 vs 1610 with 1:2 reduction.

I cant decide.

Will a Z axis 1610 run down under its own weight when not under power?

Setup:

Fixed float.
Pully/belt
length 350mm





A few other questions.

Do i need more resolution then 0.025 mm on Z per full step?

Do i need to aim for 0.01 mm per step for some reason i dont know yet?


What is to be expected from a stepper in lets say 4 microstep setup... can a stepper hold position and or will it return to for example 1/4 step position after it is pushed out of position a little.. lets say 1/8 step.... Looks like it would but this is just my gut feeling.

I think i am comfortable with 0.025mm full step resolution.
(1610 reduced 1:2 stepper 1.8 degree)
but unsure if micro stepping adds anything useful for resolution.

I know resolution is not the same as repeatability.


I have been looking around for these info's but did not find a satisfactory answer to this.


Grtz Bert.







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