[sdiy] Newbie power connector problem

[Jay Schwichtenberg]

Some of the EFM boards can be coaxed (sp?) into accepting a 0.156 connector
by drilling out the holes some. But be careful you can push the pins through
the plastic base.

But in general you want to strain relief the cable. Make sure the flexing
point is not where the cable is soldered to the board but somewhere else
where the cable will not wear. If there is a mounting hole near where the
cable comes to the board maybe use a tie wrap to hold the power cable to the
board. Or if there is a metal plate the board is mounted to drill a hole in
it to use a tie wrap. Make sure there is not a way for the metal to wear
thru (no sharp edges) the insulation on the wire by it bending/flexing.
There are also a number of already made fasteners/strain relief/cable clamp
parts also so maybe a quick pass through a Mouser or Digi-key catalog would
give you some ideas.

Good luck.
Jay S.

-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl]On Behalf Of Sam Ecoff
Sent: Friday, April 27, 2007 6:58 PM
To: Synth DIY
Subject: [sdiy] Newbie power connector problem


Hi All...

Sorry in advance for the newbie question.

I've been building some modules lately which don't have a spot for a .
156" connector. So, I've been simply soldering the power leads
directly to the board. This works o.k., but even with great care,
with slight flexing, the cables snap. So... I'm looking for a better
way to connect power. To be specific, I'm building boards by Mr. Ray
Wilson, and Mr. Tom Gamble, and a couple of other designers. The
boards by Mr. Gamble were designed to accommodate a .156" connector,
but the mounting holes are off by just enough that a .156" connector
won't fit, regardless of how much 'persuading' it receives. The
boards by Mr. Wilson were not designed to accept .156" connectors. I
don't fault either designer, I'm just looking for some advice about
how I can improve my construction methods.

Thanks in advance for the help.

Sam E.
_______________________________
Sam Ecoff
Tanner/Monagle
1120 N. Market St.
Milwaukee, WI 53202
(414) 727-8190
www.samecoff.com


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