[TriEmbed] prototyping boards with through holes

Nick Meyer nick.j.meyer at gmail.com
Sun Nov 22 14:11:45 CST 2015


Thanks for the tips, Rick. Maybe I'll give the existing board another try.
Sounds like I just didn't get a good joint.
On Nov 21, 2015 9:02 AM, "Rick via TriEmbed" <triembed at triembed.org> wrote:

> Good morning Nick,
>
>
> These may help you out:
>
> http://www.allelectronics.com/make-a-store/category/455/perf-boards/1.html
>
> http://www.mpja.com/Protoboards/products/284/
>
> http://www.goldmine-elec-products.com/products.asp?dept=1293
>
>
> Your solder joint pulling off the board could be an issue with
> insufficient heat. If there is a lot of copper, you need a large heat mass
> to heat the copper and solder to create a good solder joint. Also, after
> you clean off the solder mask, polish the copper just a bit, and then apply
> rosin flux and pre-tin the solder connection points before soldering the
> wires.
>
> If you can make use of an existing connection to the copper trace of
> choice, you'll have an easier time (no solder mask removal, no tinning
> required).
>
> Cutting FR-4 is easy with sheet metal tools, but it is tough on material
> (glass strands imbedded in a polyester resin). I've used a metal blade in a
> jig saw, tin snips, a sheet metal shear, dremel tools, and my CNC router.
> You can also scribe score lines and snap with the scribe line on a hard
> surface ... a piece of steel angle can be a good scribing AND snapping
> guide. Make several passes with a sharp blade before snapping.
>
> If you have access to a tile wet saw, that would be a quick and easy tool
> to use for cutting large stuff down to size, but the kerf is a bit large.
> Water keeps the dust under control.
>
> The tan colored pc board material is paper phenolic ... compressed paper
> impregnated with a phenolic resin. This material is not as hard on tools,
> but is more brittle and may shatter in a shear.
>
> Good luck with your project.
>
> Regards,
>
> Rick
>
>
>
> On 11/20/2015 10:23 PM, Nick Meyer via TriEmbed wrote:
>
> Hi all,
>
> I'm making some modifications to a circuit board from an old video game
> controller.  Originally I was going to scrape the solder mask off certain
> spots so I can attach the wires I need.  When I attempted this, I wasn't
> able to get a good join (without much force the joint broke off the board).
>
> So, now I'm thinking to get a piece of prototyping board with through
> holes.  I need roughly 12cm x 4cm pieces.  I'm thinking to buy a larger
> piece and cut multiple 12x4 pieces.
>
> Any suggestions for places to buy these?  Amazon has a lot of options and
> Mouser has a lot of options.  I'm not really sure what the differences are.
>
> Any help would be greatly appreciated!
>
> Thanks,
> Nick
>
>
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