Time to show a bit of work...this one was built to Woodsmith Magazine plans. I couldn't bear the thought of nearly $2000 for a decent drum sander, soooo.....
Most material was Aussie Hoop Pine (Araucaria cunninghamii) marine plywood. Solid stock is Southern Silky Oak( Grevillea robusta). Drive belt is 80 grit custom made. Drum is 25 x 18mm Melamine faced MR MDF, Shaft is 19mm. It sits on top of the table saw and is driven by the saws arbor pulley. Set up takes about 5 minutes. I store it up in the air on a cable hoist and that takes 10-15 min to get it down! One day I may make a dedicated rolling base with motor for it, but my space is limited and it's not used all that often. I also made a brush shaft that works a treat to relieve grain and produce textured panels. It can go down to 1.5mm ply without trouble. A separate hose attaches to the extractor, an ABSOLUTE necessity. Hand crank for now, but a motor drive is in the future. Next project is a 16" bandsaw from Matthias Wandel's plans...Thanks to all for the inspiration and kind sharing of ideas.
Sunny Sth Coast NSW, Australia