How Accurate is the Genmitsu 3018

I was wondering how accurate is the Genmitsu 3018 pro? I can get a first stab at this as I just machined a piece of aluminium as a test case.

Sainsmart Genmitsu Z-axis

New Version: Genmitsu CNC 3018-PRO is an upgraded version of 3018. All components do not need to be positioned, which greatly reduces the difficulty of assembly and improves the working accuracy. The base height is raised to 4cm for better stability. Capable of cutting all types of plastics, soft aluminum, woods, acrylics, PVC, and PCB, the Genmitsu can be used on a wide range of projects and materials.

Genmitsu CNC 3018-PRO Router Kit GRBL Control 3 Axis Plastic Acrylic P

Genmitsu CNC 3018-PRO CNC Router Review - Part 1: Build & First Etches - CNX Software

Genmitsu 3018-pro is a bit like Trigger's Broom : r/hobbycnc

Machining Aluminum Plate with Sainsmart Genmitsu 3018 CNC

Genmitsu MDF Spoilboard for 3018 Precautions Make sure the MDF spoilboard is secured well to the machine bed. Make sure the CNC material is clamped tight to the MDF spoilboard / machine bed, or you will get vibration, chatter, poor cut finish, and can possibly break your cutting bit. Do not use any lubricant when you use an MDF spoilboard. It will swell and expand if it gets wet. So using spray or mist coolant or oils is not recommended.

Genmitsu CNC MDF Spoilboard for 3018 CNC Routers, 30 x 18 x 1.2cm (11-4/5''x 7''x 1/2''), M6 Holes (6mm)

Genmitsu CNC Router Machine PROVerXL 4030 for Wood Metal Acrylic MDF Carving Arts Crafts DIY Design, 3 Axis Milling Cutting Engraving Machine, Working Area 400 x 300 x 110mm (15.7''x11.8''x4.3'')

3018-PRO CNC Extended Z-axis 80mm Stroke - Sweden

3018-PRO CNC Extended Z-axis 80mm Stroke 775 or 52mm Spindle Holder Assembled and Tested W/nema 17 Stepper - Sweden

Maximize Productivity with Annoytools 3018 Plus CNC Router – GearBerry

The V2 is an upgraded version of one of our best selling Desktop CNC Machines, the 3018-PROVer. Class leading value has gotten even better and is

Genmitsu 3018-PROVer V2 Upgraded Desktop CNC Router Machine with GRBL Offline Control, Limit Switches & Emergency-Stop, XYZ Effective Working Area 284

Class leading value has gotten even better and is easier than ever before to setup. With more pre-assembled accessories, it takes less than 20 minutes