This is my project of protective pads.Keep in mind: As this print needs support to print, use biodegradable or recyclable materials for pillars. Take care about the planet.I used 10mm cushioning + 10x5 cushion pads for elbows and 20mm cushioning + 12x6 cushion pads for knees. Screwed tight with toothed washers. I used hot wire and templates to cut cushioning in propper shape, than glued it directly to plastics.