Hey Carazon as every kit has different level of machine marks on it, out of the box you can't put a time on the sanding. With the veneer only sand it lightly with about 320 grit. Rest of the body back and sides if there are no deep machine marks start 180 and through to about 320/360 grit. The sides often need more attention with the end grain. Sand with the grain. After each grit have a good look at the body under good light and look for any machine marks and you will get a feel when you are ready to move onto a finer grit. If the finer grit isn't getting rid of machine marks move back to a lower grit till it disappears. Also run your fingers over the body is usually a good way to feel if it's smooth or has any machine marks/pits or bumps.
On average if sanding by hand you should be spending at least 2-3 hours sanding the body and at least 1.5 hours on the neck.
Reply With Quote