YoraHome 6550 User manual

32-BIT CONTROL BOARD INSTALLATION
Version 1.0 • September, 2022
YORAHOME CNC LASER ENGRAVING MACHINE 6550

Purpose
This Manual is intended for retrofitting the 32-Bit Control Board to the
YoraHome CNC Laser Engraving Machine 6550; replacing the original 8-Bit
Control Board.
This manual is designed to cover this process only, and is not a complete
manual.
Before beginning assembly, we recommend conducting an inventory using
the Packing List to ensure all components are present.
Please read these instructions carefully before installing your board to
prevent possible damage to your machine.

Contents
Part 1: Packing List
Part 2: Assembly
Part 2: Default GRBL Settings

Packing List 1/3
Part 1
Item Size Picture Quantity
32-Bit Control Board 1
Rear Acrylic Mounting Plate 4mm Thickness 1
Front Acrylic Mounting Plate 4mm Thickness 1

Packing List 2/3
Part 1
Item Size Picture Quantity
USB Cable 1
Cooling Fan 30x30x10 - 12VDC 1
Fan Mounting Pins White Nylon 4

Packing List 3/3
Part 1
Item Size Picture Quantity
M3x6 Socket Head Screws
NOTE - Extra hardware is
included in this kit; in the
event of loss.
5
M3x8 Socket Head Screws 5
M3x6x6 Board Standoffs -
M/F threads 5
M3x13 Board Standoffs - F/F
threads 5

Assembly
Part 2
Preliminary Steps
- For ease of access, position the 6550 with the Control Board facing you.
- After setting position; ensure that the Controller is turned off, and the power cord
unplugged.
- Ensure that your work area has ample room around the machine to allow room to
work.

Assembly
Part 2
Step 1 - Removal of 8-Bit Control Board 1/3
Disconnect all wire harnesses from the
control board:
- X Axis Stepper Motor
- Y Axis Stepper Motor
- Laser
(It is recommended that you temporarily
label at least one of the stepper motor
wire harnesses, to prevent errors on
reassembly)
NOTE - Photos used in this manual show a
machine equipped with Dual Y Axis
motors; your machine may only have one
Y Axis Stepper Motor

Assembly
Part 2
Step 1 - Removal of 8-Bit Control Board 2/3
Using the appropriate hex key (included
with your original machine purchase),
remove the 4 screws holding the Front
Acrylic Plate over the control board.
Remove the brass standoffs which are
retaining the control board to the Rear
Acrylic Plate, and remove the control
board.

Assembly
Part 2
Step 1 - Removal of 8-Bit Control Board 3/3
Remove the 2 screws holding the Rear
Acrylic Plate to the machine frame.
KEEP THESE 2 SCREWS AND T-NUTS FOR
INSTALLATION OF THE NEW CONTROL
BOARD.
We recommend retaining the original
control board and all associated mounting
hardware, as a reserve/spare part.