Tips/Techniques 3DP sanding blocks

[PeterT]

Or as I like to call them - repurposed drill stand blocks that didn't quite work out the first print LOL. I use little for-purpose stuff like this a lot for model work but usually MDF or ply scrap blocks with PSA (sticky back) sandpaper. Or wet & dry paper or emery paper bonded with 3M spray adhesive. Here I'm trying something different with Velcro strip attached to use hook & loop style paper just cut from sandpaper discs or rectangle sheets. H&L seems to be more prevalent these days? I also occasionally use wood backed or aluminum backed blocks for touch up work in the lathe. Metal is a better datum surface but more dangerous from a safety facial implant perspective. Now to remove worn PSA backed paper I give it a spritz of acetone or solvent & off she comes. But guessing that solvent will melt PLA, hence the H&L experiment. Anyone tried paint thinner or lighter fluid on PLA? Maybe one of those citrus / water based concoctions would work?