If it uploads and shows a volume, we can read it. Every model is then checked on our slicer before it goes near a printer. Small things like orientation or supports we simply fix, at no charge. If the model itself needs a change — walls thinner than 0.8 mm, a mesh with holes in it — we message you to correct and resend, or you can hand it to our engineers to sort out with you. For a safe file, export in millimetres and keep walls at 1 mm or more.

Keep With supports unless you are sure. Supports hold up any part of the model that hangs in the air while it prints, and we add them the way a slicer does by default. No supports is for designers who know their model well and have deliberately shaped it to print free-standing. If you're not certain, choose with supports — it costs a little more material and we remove them before you collect.

Please don't — one piece per file, one file at a time. Each piece gets its own material, quantity and price that way, and our slicer checks it on its own. Use “Add another model” to build up the order.

Our FDM prints hold roughly 0.1 mm dimensional accuracy. Surface finish depends on the material and on any post-work — a raw print shows fine layer lines, PLA and PETG give the cleanest surfaces, TPU is flexible, and Nylon is tough with a matte feel. If you need a smoother part, ask us about sanding, priming or painting when you order.