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GRBLDuino Uno Shield V2 Assembly Guide

Posted: Tue Jan 29, 2019 9:14 pm
by EccentricWorkshop
Here is the step-by-step process to assembling your GRBLDuino Uno Shield.

First, lay out all of the parts and group them together.

Place the Arduino header pins into the PCB from the bottom side. Only these 4 headers will be soldered on the top side of the PCB.
GRBLDuino Uno Step 1.jpg
GRBLDuino Uno Step 1.jpg (1.13 MiB) Viewed 6940 times
GRBLDuino Uno Step 1.jpg
GRBLDuino Uno Step 1.jpg (1.13 MiB) Viewed 6940 times


Insert all of the remaining header pins into the correct locations on the top side of the PCB. These will be soldered on the bottom side of the PCB.
GRBLDuino Uno Step 2.jpg
GRBLDuino Uno Step 2.jpg (1.13 MiB) Viewed 6940 times
GRBLDuino Uno Step 2.jpg
GRBLDuino Uno Step 2.jpg (1.13 MiB) Viewed 6940 times


Next, insert all of the components. Bend the leads to hold them in place (the large capacitors will likely stay in place without being bent).
GRBLDuino Uno Step 3.jpg
GRBLDuino Uno Step 3.jpg (1.18 MiB) Viewed 6940 times
GRBLDuino Uno Step 3.jpg
GRBLDuino Uno Step 3.jpg (1.18 MiB) Viewed 6940 times


Pay attention to the orientation of the resistor network (the single line, 6 pin, yellow or black package). The dot on the one end gets aligned with the box printed on the PCB.
GRBLDuino Uno Resistor.jpg
GRBLDuino Uno Resistor.jpg (946.61 KiB) Viewed 6940 times
GRBLDuino Uno Resistor.jpg
GRBLDuino Uno Resistor.jpg (946.61 KiB) Viewed 6940 times


Finally, Insert the stepper driver sockets, making sure they are sitting straight. Insert all of the screw terminals as well.
GRBLDuino Uno Step 4.jpg
GRBLDuino Uno Step 4.jpg (1.2 MiB) Viewed 6940 times
GRBLDuino Uno Step 4.jpg
GRBLDuino Uno Step 4.jpg (1.2 MiB) Viewed 6940 times


I typically solder the Arduino headers, then the remaining headers, then the components, then the driver sockets, and finally the screw terminals. Total assembly time is typically 20 to 30 minutes. Take your time and ensure you have good solder joints (they should be shiny and smooth). Bad solder joints will cause many problems which will be nearly impossible to troubleshoot.