GT2 6mm belt tensioner M3 remix

The original remix is ideal for my printer but I remixed it to use M3 socket head cap screws and nuts that I had on hand.

Printed and used on my Monoprice Select Mini as a belt tensioner and coupler after upgrading my X-axis belt and pulleys to GT2. They are small enough not to foul up on the x-carriage or crash into the z-tower.