This week I was mostly working on finding perfect size for linear bearing and rod to fit perfectly. After couple of 3d printing I found the right diameter for linear bearing and rod. Which are 15mm linear bearing size + 0.21 offset = 15.21mm and 8mm rod size + 0.45mm = 8.45mm for smooth movement.
Also did my first rod holder 3d print, It came out decent there were some hole little bit tight, but after some drilling me and João manage to fit linear bearing.