PCB fabrication (homebrew): Difference between revisions

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With SRBP use a craft knife and straight edge. Score it deeply on both sides. Clamp one or both sides between wood to prevent the board being scratched. Then snap it off. A craft knife works especially well for perforated prototyping board. Score down the center of a row of holes, line the score line up with the edge of the table, and press down quickly on the overhanging piece.<ref name="eese">[http://electronics.stackexchange.com/questions/1151/how-do-you-cut-pcb How do you cut PCB?], Electrical Engineering Stack Exchange</ref>
 
FR4 boards are much harder to cut and very hard on tools.<ref name="diyaudio">[http://www.diyaudio.com/forums/parts/62929-easiest-way-cut-pcbs.html Easiest way to cut PCB's], diyAudio forum, August 2005</ref> A PCB guillotine is the right tool for the job. Failing that use a bench shear or an office guillotine that can cut through more than 2&nbsp;mm of paper. Use a nibbling tool for non-straight cuts.<ref name="hpcb"><s>[http://groups.yahoo.com/neo/groups/Homebrew_PCBs/conversations/topics/22519 Cutting PCB], Homebrew Printed Circuit Boards Yahoo! group</s></ref><ref name="diyaudio" /> If there is going to be any dust a conventional dust mask might be insufficient protection as the dust is extremely fine. Use a vacuum cleaner to catch the dust at source. Safety glasses should always be worn.<ref name="eese" />
 
Alternately take a straight edge and secure it along the line to cut. Then take a chisel (one set aside for this), and run one of the corners along the straight edge. First pass go lightly to just get a bit of a groove dug in for the tool to follow so it wont jump out on subsequent passes. Next pass or two press hard, and dig in for a deep groove. Score on both sides. Secure the board and snap the piece off. To finish the edge make a pass or two along it with a fine file.<ref>[http://www.eevblog.com/forum/manufacture/cutting-fr4-boards/15/ Cutting FR4 boards], EEVblog forum, August 2012</ref><ref name="diyaudio" />
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* ''[http://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-etc/?ALLSTEPS Stop using Ferric Chloride etchant! (A better etching solution.)]'' by The Real Elliot, Instructables
* ''[http://www.instructables.com/id/Killer-PCBs/?ALLSTEPS Killer PCBs]'' by incoherent, Instructables
* [http://tech.groups.yahoo.com/group/Homebrew_PCBs/ Homebrew PCBs] Yahoo group
 
[[Category:PCB]]