[CW] Replacement Rubber Feet for Keys

D.J.J. Ring, Jr. n1ea at arrl.net
Thu May 12 14:08:35 EDT 2022


 FROM:  Chris NW6V

Hi Dave.

Thanks for that link. They certainly have interesting products, and I never
ran across them before. I like that they're on Amazon - so buying and
getting is very easy.

I note the ones you mention are only 1/4" high, so the standard screws in
the foot of a vibroplex will be too long to tighten. Easily fixed by
cutting the screw or buying shorter ones. But i need of fixing before it
can be used.

I use feet from McMaster-Carr, which are slightly harder (70 vs. 65) but
taller, and easier to fit. Here's what I posted on the Bug group in 2020:

-xx-
"I've been meaning to post this for a while! McMaster-Carr also has a
somewhat larger-diameter straight-sided model like those found on MAC keys.
I use them on all my bugs, vibroplexes as well - the larger diameter gives
more stiction.Â

https://www.mcmaster.com/#9540K55 with an internal washer Â

https://www.mcmaster.com/#9540K21Â without an internal washerÂ

I preferred the ones w/o the washer - they seem to offer a bit better
stiction on my desktop."
-xx-

Note that on a Vibroplex, the right front bumper will extend a tiny
fraction - .5mm or so - beyond the frame. I ignore it.

Even with these taller bumpers, on one of the 10 or so bugs I put these on,
the screw bottomed out before the foot got tight. Easily fixed with a
washer because there was clearance for the head to be higher without
extending beyond the base of the foot.Â

73 Chris NW6V
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