RE: [rp-ml] Prototyping: Conductive Rubber Switchpads on the west coast?

From: James P. Harrison (
Date: Wed Mar 02 2005 - 15:51:15 EET

Hi Alex,
We have a line of rubber SL materials with shore hardness of 45A, 65A &
80A. These are urethane acrylates that are being used in the Rapid
Manufacturing Industry. If you would like to discuss it further or if
your interested in a list of SB's using our materials, my contact info
is below.
Best Regards,
James P. Harrison
3Dimensional Resins
2991 N. Powerline Rd
Pompano Beach, FL. 33069
Phone: 954-582-0582
Fax: 954-861-1088
-----Original Message-----
From: [] On
Behalf Of Alex Do
Sent: Tuesday, March 01, 2005 8:02 PM
Subject: [rp-ml] Prototyping: Conductive Rubber Switchpads on the west

For any of you prototyping bureaus out there, as part of a full product
prototyping process (I'm talking PCB and everything) do you ever find
the need to get low volume conductive rubber switchpads?
These are the rubber buttons with the black dots inside that when
depressed against a contact area on PCB shorts a connection - pretty
standard for remote controls, cell phones, cordless phones, etc. I do
"product prototyping" (in quotations because it's on an academic level)
and rather than making FDM buttons I'd like to emulate the look, feel,
and operation of a real device where conductive rubber switchpads are
well applied. Plus it makes the PCB prototyping fairly simple.
Alexander Do
Research Assistant
Ford Prototyping Studio
University of California, Berkeley <>
2117 Etcheverry Hall
Berkeley, CA 94720-1750
(510) 643 9486

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