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Hi Karen, there is another link on IIS with a lot of stepper options. The only catch is you will also need a controller. There is a bit of cost in buying a commercial unit and there are cheaper arduino options if you are up for DIY. I have moonlite stepper motors and sharpsky controllers. I personally think the sharpsky option is quite good value as it comes with the controller which also has dew heater functionality.
Peter
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