Hi Luka, You are correct. Everyone that I've ever talked to, looks at that mess of board outlines you've circled and says "Mouse Bite". Ultimately any board outline is provided to a CNC technician and *interpreted *to create tool routing. Tool routing that is offset from the board outline by the drill radius and concave acute angles rounded. Often a good PCB Fabricator (fab shop) will point out areas that can't be CNC routed and work with the customer on a solution.
Take way: board outlines and mouse bites are always interpreted by a technician to make sure the CNC routing works correctly. I've yet to see mouse bites done incorrectly though I've have seen the drill size, spacing, and count adjusted based on board thickness. If your building a thinner than standard boards a fab shop may adjust the mouse bite specification for reliability. Translation, make sure the mouse bite doesn't break in the factory but can be snapped latter by the customer. Done correctly you shouldn't need cutting tools to snap mouse bites. Allen On Sat, Dec 9, 2017 at 5:26 AM, Luka C <[email protected]> wrote: > @Allen I'm planning on assembling them "by hand", manually pick and place > SMD components and bake them inside a reflow oven. I guess I'll try > following the Dangerous Prototyping post today. > The only thing I do not understand is the part I've marked in yellow on > the picture here: https://i.imgur.com/HmpFPwv.jpg > Those break tabs contain outlines of both the first and the second board > as well as the arc. I suppose the technician at the fab house then alters > this in a way that the machine only cuts the arcs and not the board outline > directly around it as it would cut the two boards apart? > > @gregebert I'm was thinking about cutting them with something like that > indeed, I'd just like to make it easier by having empty space between them > and having mousebites to simplify cutting them apart. > > Dana subota, 9. prosinca 2017. u 04:17:25 UTC+1, korisnik Allen Dutra > napisao je: >> >> Hi Luka, >> >> Allen Dutra, professional PCB designer currently working for Apple and >> with a lot of first hand experience with PCB panels. >> >> In your case you want to use mouse bites to combine two different sized >> rectangles. V-Scores won't work here. The mouse bite instructions from >> dangerous prototypes will work well for standard 0.064" designs. Question, >> are you soldering these boards by hand or having them built on an assembly >> line? (I could guess your answer but no assumptions from me) Assembly lines >> will want tooling rails >> <https://www.pcbuniverse.com/articles/Tooling%20Rails,%20Holes%20and%20Fiducials.png> >> for best results but these are easily forgotten. >> >> I haven't use the PCB Panelizer tool that you linked to. Generally I >> design my panel in the ECAD tool (Eagle CAD, Allegro, Altium etc.) I'm >> already using to ensure Gerber accuracy. >> >> Let me know if you have other questions, >> >> Allen >> >> On Friday, December 8, 2017 at 5:07:06 PM UTC-8, Luka C wrote: >> > -- > You received this message because you are subscribed to a topic in the > Google Groups "neonixie-l" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/neonixie-l/Y0gwQHuCzoE/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web, visit https://groups.google.com/d/ > msgid/neonixie-l/67036d33-d5a0-465e-8f20-57f96a9acbe2%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/67036d33-d5a0-465e-8f20-57f96a9acbe2%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAALbAu19kAsQDHu_qjr5r7z2N8%2BxdGMb%2BLEkLdYbq5PS4bBVJQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
