Marshall Stanmore Bluetooth speaker top cover

I always had problem putting my phone and other things to the top of the speaker because of the buttons on the center. The cover is two identical piece. You can use hot inserts and bolts or simple glue it together.

I have used 20mm felt discs inside as legs, that is 2mm height.

I have "Stanmore 1", the outer size of the speaker is 185mm X 350mm. Outer size of the 3D model is 187mm X 352mm when assembled the two parts.