Microsoft computer mouse modelling pt.2

top surface: create a sketch on front plane to be a constraint curves to fill the top surface.

i used the surface fill command to create the top surface, the top edge of the surface body to be the patch boundary and the sketch i created on the front plane in the pervious step to be the constraint curve and fill the top surface.

here is where i trim off the half bit of the top surface for the finger recesses and the scroll wheel 

after trimming the half left, i knitted the middle housing and the rear upper surface housing together.

i used surface fill command again too create the rear upper housing. there was another sketch that i make across the upper surface housing to control the centre height

next step was to make the scroll wheel part by create another sketch on the top plane by tracing from the top evaluation view photo.

and then again i used the surface trim command to trim off the scroll wheel part on the upper housing surface.

this sketch was create on a front plane to determined the lowest point of the usrface around the scroll wheel area.

then after that is to fill it using surface fill command again.

after the surface body is completed, i used the knit surface command to knit all the surface together and turn it into a solid body, so later on i can split them into all different part of the mouse.