Bigtreetech Direct 3D Printer Control Board Octopus V1.1 32Bit Control Silent Board Up to 8 Stepper Drivers Support Running Klipper and Marlin Style:Octopus V1.1 FITS YOUR TOOL 4" with

FITS YOUR TOOL 4" with 5/8" arbor striper grinding discs

and the back is magnetic (the interaction with the front of Part B plays an attractive role) -Part B: The top is magnetic (with the adsorption under the A part)

Attention: Please be sure the size selected will work on your machine

polishing such as diamond polishing pads hole saws floor polishing pads router bit profile grinding wheels and more

include 20 pieces of T-shape wire wheel brushes

Bigtreetech Direct 3D Printer Control Board Octopus V1.1 32Bit Control Silent Board Up to 8 Stepper Drivers Support Running Klipper and Marlin Style:Octopus V1.1 FITS YOUR TOOL 4" withBigtreetech Direct 3D Printer Control Board Octopus V1. 1 32Bit Control Silent Board Up to 8 Stepper Drivers Support Running Klipper and Marlin About The BIGTREETECH Octopus V1. 1 is a powerful and feature rich, 3D printer motherboard that supports up to 8 stepper drivers with 9 stepper driver outputs in total. OCTOPUS MOTHERBOARD PARAMETERS 1. Edge to edge size: 160100mm 2. Mounting hole to hole size: 15090mm 3. Microprocessor: ARM 32 bit Cortex M4