Total noob here (never touched Arduino before today), & have pretty much no hands-on technical experience (although with lack of experience, I make up in enthusiasm to learn!)

Question: How do you attach a plate (material of plate yet to be decided, likely stiff cardboard) to a stepper motor? See image demonstration below:


Do I punch a hole in the middle of my plate and super glue the hole to the motor shaft? 🤷

The end goal is to have a rotating plate like a microwave (the plate will hold some items).

Summary; How do you securely attach a plate to a stepper motor without it collapsing from the weight of the plate? Should I even be putting a plate onto a stepper motor? Or should I use a servomotor?

Thank you!

  • 1
    $\begingroup$ Noting cross post from arduino.stackexchange.com/questions/85307/… The advice Majenko gave about rollers to support the weight was good. The stepper and coupling can bear very little weight. $\endgroup$
    – RowanP
    Jul 27, 2021 at 10:46

1 Answer 1


Have a Google at double flat drive couplers, sometimes called oval, or dual drive flat.

Something like this might do the trick: enter image description here

Also see How can I attach an arm to a double-flat drive stepper motor?

  • $\begingroup$ @Tee those are typically just a few dollars on aliexpress.com. Leave a commnet if can't find them. $\endgroup$ Jul 25, 2021 at 23:57

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