Bought the scroll saw second-hand. I wanted an adapter to take the 34.9mm diameter of the Ryobi Scroll Saw down to about 29.9mm to connect the flexible hose that plugs into my Shopvac. Wanted one that mimicked the OTC genre and that wouldn't break easily. This was before I had my printer. Exhausted every avenue I could think of to try to find one from Ryobi, big box stores, eBay, and online. Amazed that Ryobi made the scroll saw and apparently nothing to fit it. No parts for sale anywhere to actually fit. I had cobbled together an amalgam of duck tape and plumbing parts to get by. Bulky and not secure. Got the printer but had forgotten about this until I chanced across the original model on Thingiverse. Lightbulb.