The objective of this week is to actuate and automate our machine.
The board is design to simplify the connection of the stepper motor driver ti the Satsha GBRL board.
Pins MS1, MS2 and MS3 have to be connected in 5V in the A4988 stepper motor driver carriers so that it offers 1/16 step microstepping.
This driver operates from 4.5V ti 35V and can diliver ip to approximately 1.5 A.
There is an on board timer poteniometer for setting the curent limit, turn it counter clockwise to decrease the current.
After finished milling the PCB, we need to drill the holes with the diameter of 0.9 mm and 1 mm.
Solder them all in the board and plug the pololu stepper motor driver.
The 3d CAD of cable holder.
Slicer for 3D pint the cable holders.
Manage all the cables with the 3d printed cable holders.
The pinout of the Satsha-grbl.
The connections between the a4988 driver and Satsha-grbl
GBRL is a controller for CNC Milling which run on Atmega 328.
Download and install UGS Platform.
On the software use $$ command to get the current setting.Grbl v1.1 Commands
To change the setting just simply type the the parameter on the console for example "100 = 200" which set that x-axis travel resolution is 200 step/mm.
The Fab modules is used to generate the g-code.
Those are the parameters that I have used to draw with my machine.
This is the first try to draw on my notebook.
A2 drawing of a Barong.
Madala drawing from our machine.
a4988 PCB board
cable holder Solidworks
cable holder STL