The design of the Deltaprintr means the stepper motors touches the lower surface that the printer is standing on.

This is a design for small feet that push-fit onto the ends of the uprights, allowing the Maker to easily stick felt/rubber pads onto the bottom.

This has a few added benefits

- it lifts the printer a little up off the surface so the steppers don't transfer heat to the surface it is standing on

- it helps baffle the vibration noise of the printer

- the design of the cut-out keeps the end-stop cables from getting snagged