Monitor Stand - 8in tall - hexagon shapes - made for 2mm sheet

Monitor stand I created for my work desk.  It's made to accommodate a 2mm-thick carbon fiber sheet.  The sheet shown in the pictures is 400mm x 300mm x 2mm.   The shelf surface is 8in off of the desk.

Original document in Onshape: https://cad.onshape.com/documents/6983845158c0794934f41b03/w/78b191e026d682d4cb711734/e/78580d465c8126f368cecec1?renderMode=0&uiState=64c938f3fcbd1f5556bcd497