Random orbital vs sheet sander for refinishing a dining table?

I'm planning to refinish my old oak dining table - strip off the old varnish and stain it a darker color. I've got a random orbital sander but I'm wondering if I should also get a sheet sander for the flat surfaces. What's the best approach? Should I start with coarse grit and work my way up? Any tips for getting a smooth finish without swirl marks?

Random orbital is perfect for the main surfaces! Use 80 grit to strip, then 120, then 180, then 220. The key is to sand with the grain and let the sander do the work - don't press down. For the edges and details, a detail sander or even hand sanding works better. Swirl marks happen when you use too coarse grit with a random orbital or keep it in one spot too long. Keep it moving!

Just did a similar project - random orbital all the way! Start with 80 grit to remove the old finish, then progressively finer. I liked using a sanding sponge for the edges because the RO can round them over. Pro tip: wipe down between grits with a tack cloth. The 220 grit stage is what makes the difference between good and great finish. Take your time here.

Great tips, thanks! Quick follow-up - what about dust collection? I've got a shop vac attachment for my sander but it still seems dusty. Is that normal or am I doing something wrong?

Dust is inevitable unfortunately. The shop vac helps a lot but you'll never eliminate it completely. Make sure your filter is clean and consider a good respirator - sanding dust isn't great for your lungs. I also like to sand in a well-ventilated area and let the table sit for a few hours before applying stain. Wipe it down with mineral spirits right before staining to pick up any remaining dust.