Best Motor I Should Use?

Help & Support Robot Parts
1

Hey there,

I’m new so I hope this is the right place for this!

About a week ago came up with an idea for a robot that will make my life infinitely easier, but after spending an uncomfortable amount of time “designing” it in CAD & reasearching on YouTube I’m hitting a stump.

I need to create essentially a drive belt that will have an extruder-like “tip” where it will go back and forth across an object. Ideally, I’ll create or come up with a unique way to make the extruding tip angle slightly over the edges to make sure it hits 100% of its target (problem for another day).

My main question though is if there’s any recommendations on the best type of motor to use for a belt that will essentially go back and forth, back and forth, etc. (very similar to a print head) without ever really “stopping” and jerking backing to the beginning. It will complete a 100% pass then reset unless it’s paused manually.

I’m not sure if I’ve given enough information, but I do hope that’s “enough” to get an idea of what I’m looking for?

Sorry! Not a mechanical or electrical engineer, so my lingo needs some work haha

2

It sounds like you’re looking to make a slider system? Most of these which require constant speed use stepper motors or a DC gear motor, and you’ll need a way to determine the end has been reached.
A stepper allows you to control the number of steps, though a starting switch is often used, since it does not offer absolute positioning upon startup.
A gear motor with encoder allows you to determine the distance traveled, but it too does not offer absolute positioning.
Example:
robotshop.com/en/ratrig-cam … y-kit.html
robotshop.com/en/ratrig-v-m … motor.html

If I did not understand correctly, perhaps sketch or describe more what you’re looking to do?