Marble Run 003 Speed Controller

The standard TT motor runs too fast and marbles either jam the machine or go flying. Use this model with a PMW speed controller and a 12V DC adaptor to control the speed of the marble run, using basic parts off from AliExpress or Amazon. Little electronic knowledge needed, though some soldering may be required.What you will need3d printed parts consist of the speed controller housing, lid, and remixed motor clamp. All which are included in the print profile. Other items you will need are:Speed controller5.5mm x 2.5mm DC Power Supply Jack12V adaptorPlease take note that there are many variations of the above parts. I cannot guarantee the proper fitment of each part, even if purchased from the same vendor/manufacturer.AssemblyAssembly is pretty straight forward, but here is a guide to help you.Step 1:Print parts!Step 2:First remove the 3-way switch from the speed controller. Set the switch aside and we will use that later. Feed wires from the DC power jack in through the hole. Don't