At home DIY Printed Circuit Board Fabrication
by, 01-31-2010 at 05:06 AM (36743 Views)
I make prototypes of single sided PCB's at home before i send them over to a PCB maker , So here is a quick Tutorial of what i do ...
Things you need -
1. Ferric Chloride
2. Copper Clad Board
3. Laser Printer
4. Fine sand paper
Step 1. Print layout on glossy paper and cut a Copper Clad PCB accordingly. Use fine sandpaper to clean PCB. Leave extra edges around layout , it helps in transfer.
Step 2. Use a Hot Press set at for Cotton to transfer the toner to your PCB. Apply pressure while doing so , do it for say 2 - 5 minutes.
Step 3. Use warm soapwater and soak your PCB with paper in it for 15 minutes.
Step 4. Now peel of the paper, it should come off easily. Use a tooth brush to clean it well.
Step 5. Sometimes tracks also get removed. Use a permanent marker to fill in tracks , use multiple strokes to fill in the errors.
Step 6. Let it soak in Ferric Chloride for a while. Say 15 minutes , also agitate the Ferric Chloride if possible.
Step 7. Now check it has etched correctly or requires more. You will have something like shown below.
Step 8. Now use the sand paper again to remove the toner , wash with water.
Step 9. Now start drilling using a hand drill , use a 1mm drill. Buy branded drill heads as cheap ones dont last and waste time.
Step 10. You are done now mount the components, and your board is ready.
Any ideas or techniques to do it better do let me know !!! .