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PermanentMarkerPCB

Page history last edited by PBworks 18 years, 1 month ago

PermanentMarkerPCB - PrintedCircuitBoards

Printed Circuit Board Etching (Permanent Marker Method) Michael M 5/18/05

 

 

Objective

 

To create a PCB using the Ferric chloride etching process.

 

 

 

Prerequisite Skills

 

Soldering

 

 

Materials

 

Ferric chloride

Safety Goggles

Blank PCB

Plastic scrub pad

Shallow plastic container (Just larger than the PCB)

Permanent Marker

1/32” drill bit (or small brad nail)

1/16” drill bit

 

 

Procedures PCB Creation

 

 

Clean the PCB (copper side) with a plastic scrub pad and warm water.

Trace the foil pattern onto the board with a permanent marker.

Cut board to size with step shear.

Put on Safety Goggles!

Carefully immerse the PCB in Ferric chloride, using only enough to cover the board.(fig 1)

When the board has been etched wash with water and clean off marker with plastic scrub pad.

Check to make sure all foil pads are electrically isolated from each other using the continuity tester.

Drill holes for components using brad nail as drill bit (aprox 1/32 in diameter). To prepare brad nail as drill: Cut off nail head and chuck in dremil tool. Use the point to drill holes in PCB.

Drill holes for wire connections using 1/16” drill bit.

Place components on board and carefully solder. (fig 2)

For extra durability, flow solder over all of the PCB traces. (fig 3)

 

- PrintedCircuitBoards

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