I I have have expertise in the following services : GENERAL DRAFTING MECHANICAL DESIGN AND DRAFTING Sheet metal design, molding design, complex surface design, pipe routing and more. Drafting of parts , assembly ,including drawing documentations such as bill of quantity , cut list table ,Tolerance table and more. Automation of the design and drafting process using API code (VBA) or CAD equations to generate parts, assembly or drawings within a constraint time. Mechanical simulation( static analysis , fatigue analysis , motion simulation). Animation of parts and assembly( walkthrought , motion study , event based motion , exploding and collapsing ) . Design /Drafting of PV system and solar heating system We provide some assistance related to the type of challenges encountered in design / planning process of PV system. We mainly design VBA applications within excel to speed up the planning process .