Diff for "ManMachine/KeyerPCB"

Differences between revisions 9 and 16 (spanning 7 versions)

This two-layer development board was laid out using Fritzing, and an order has been placed to Fritzing Fab for a prototype to QA. Fabrication cost for one unit, including international shipping to the USA, was roughly US$40. I'll post pictures once it arrives in a couple weeks and I have a chance to run tests, but here are some preliminary details:

So far I'm using the same BoM from the perfboard design, but I'll probably switch up CON1 with Digikey part 609-2845-ND (vertical rather than right-angle) so as not to block the lower-left mounting hole. Here's a paper test using a 1:1 scale printout of the silkscreen and solder mask together:

The 0.1" pitch right-angle screw terminal blocks I used are just slightly longer than 0.4" each. So as to be able to fit the four for CON3-4 directly adjacent to one another, I lightly sanded the facing sides until they fit snugly but evenly in a piece of perfboard. In an effort to make it easier to solder these evenly on the board, I attached their sides together with a tiny dab of quick-setting adhesive gel (being careful not to get it into the terminals themselves):

back to The Man-Machine...

-  ⇤ ← Revision 9 as of 2012-06-17 19:06:40 → 
  Size: 1604
  Editor: fungi
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+   ← Revision 16 as of 2012-06-17 20:00:48 → ⇥
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  Editor: fungi
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-This printed circuit development board was laid out using [[http://fritzing.org/|Fritzing]], and an order has been placed to [[http://fab.fritzing.org/|Fritzing Fab]] for a prototype to QA. I'll post pictures once it arrives in a couple weeks, but here are some tidbits to tantalize:
 * [[attachment:SpiffChorder.fzz|Fritzing file]]
+This two-layer development board was laid out using [[http://fritzing.org/|Fritzing]], and an order has been placed to [[http://fab.fritzing.org/|Fritzing Fab]] for a prototype to QA. Fabrication cost for one unit, including international shipping to the USA, was roughly US$40. I'll post pictures once it arrives in a couple weeks and I have a chance to run tests, but here are some preliminary details:

 * [[attachment:SpiffChorder.fzz|a Fritzing FZZ file containing the PCB layout]]
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- * [[attachment:SpiffChorderEtchable.pdf|etchable PDF export (combined using pdfunite from poppler-utils)]]
 * [[attachment:SpiffChorderGerber.zip|compressed ZIP archive of Gerber files]]
+ * [[attachment:SpiffChorderEtchable.pdf|an etchable PDF export from Fritzing (combined using pdfunite from poppler-utils)]]
 * [[attachment:SpiffChorderGerber.zip|a ZIP archive of the Gerber export files for the QA board (sent to me by Fritzing Fab)]]
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-So far I'm using the same BoM from [[../KeyerPerfboard|the perfboard design]]. Here's a paper test using a 1:1 scale printout of the silkscreen and solder mask together:
+So far I'm using the same BoM from [[ManMachine/KeyerPerfboard|the perfboard design]], but I'll probably switch up CON1 with Digikey part 609-2845-ND (vertical rather than right-angle) so as not to block the lower-left mounting hole. Here's a paper test using a 1:1 scale printout of the silkscreen and solder mask together:
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-[[attachment:SpiffChorderPaperTest.png|{{attachment:SpiffChorderPaperTestThumb.png||SpiffChorder Paper Test}}]]
+[[attachment:SpiffChorderPaperTest.jpg|{{attachment:SpiffChorderPaperTestThumb.jpg|attachment:SpiffChorderPaperTest.jpg}}]]
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-I'll probably switch up CON1 with Digikey part 609-2845-ND (vertical rather than right-angle) so as not to block the lower-left mounting hole. Also, the 0.1" pitch right-angle screw terminal blocks I used are just slightly longer than 0.4", so I lightly sanded down the facing sides until they fit snugly but evenly in a piece of perfboard and then attached them to one another with a tiny dab of quick-setting adhesive gel (being careful not to get it into the terminals themselves):
+The 0.1" pitch right-angle screw terminal blocks I used are just slightly longer than 0.4" each. So as to be able to fit the four for CON3-4 directly adjacent to one another, I lightly sanded the facing sides until they fit snugly but evenly in a piece of perfboard. In an effort to make it easier to solder these evenly on the board, I attached their sides together with a tiny dab of quick-setting adhesive gel (being careful not to get it into the terminals themselves):
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-[[attachment:SpiffChorderScrewTerminalSanding.png|{{attachment:SpiffChorderScrewTerminalSandingThumb.png||SpiffChorder Screw Terminal Sanding}}]]
+{{attachment:SpiffChorderScrewTerminalSanding.jpg}} {{attachment:SpiffChorderScrewTerminalsGlued.jpg}}
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-[[../|back to The Man-Machine...]]
+[[ManMachine|back to The Man-Machine...]]