- Print hours
- Anycubic's documentation shows no print-time counter for the Kobra 3 that we could find, so ask the seller how much it has printed and look hard at the nozzle and sheet.
- Hotend and nozzle
- It's a short-path direct-drive extruder rated to 300 °C, with a 0.4 mm nozzle as standard and 0.6 and 0.8 mm nozzles as options. Anycubic doesn't call the stock nozzle hardened, so ask whether the seller printed carbon-fiber or glow filaments, which wear a soft nozzle fast.
- Bed and levelling
- It prints on a PEI spring-steel sheet with a 110 °C bed, and LeviQ 3.0 handles the levelling and Z offset. Look for bald or gouged patches on the sheet in the photos.
- Belts, rails and screws
- It's a bed slinger rated to 600 mm/s at the top end, with resonance compensation and flow correction in the firmware. Belts that twang and a bed that moves smoothly by hand are what to ask the seller to show.
- Firmware and account
- Anycubic calls the firmware Kobra OS, and the printer works with its slicer and app. Ask the seller to remove it from their Anycubic account before it ships, and to say which firmware version it runs.
- Enclosure and add-ons
- The ACE Pro is Anycubic's multi-color unit. One gives four colors and two give eight, and the Kobra 3 Combo bundles the printer with one. A camera was an option too. Check the photos for the ACE Pro and its feed tubes if the listing says Combo.
- Spare parts
- Anycubic's Kobra 3 Combo page showed sold out when we checked, with a note that a Kobra 4 Combo might be sent instead, so it's on its way out. We didn't confirm Kobra 3 spares in Anycubic's store. Check for the nozzle and sheet you'll need before you buy.
- Shipping and packaging
- Anycubic doesn't publish a packing guide that we found. The original foam is best, with the sheet off and the head and bed held still. If an ACE Pro comes with it, it should be boxed apart from the printer.
Check the listing photos against these lists, and ask the seller about anything you can’t see. A missing sheet, add-on or power supply should come off the price.