Shim washer/extremely thin stand-off source
Shim washer/extremely thin stand-off source
(OP)
Greetings,
I have need for a shim washer of 1" OD, and ideally 0.9" ID, but possibly as small as 0.85" ID. Any thickness from 0.005" to 0.010" would work. Material is unimportant, other than it be reasonably tough and bondable with cyanoacrylate adhesive (loc-tite, crazy-glue, etc.).
This washer will act as a thin standoff to lift a piezo-electric buzzer off a metal surface, to generate a sounding cavity.
I've tried McMaster-Carr and Spaenaur, but can only find washers with 1" OD and 5/8" ID, which is too small a hole in the middle.
Any other suggestions? I had 20 made by a local machine shop, their best method was to stack together 20 sheets of shim stock, machine out the center hole, then put the sheets on a mandrel and turn the outside diameter down on a lathe. It made beautiful parts, but it's not a practical method for production... We'd be looking at 500-1000 pcs/month.
I have need for a shim washer of 1" OD, and ideally 0.9" ID, but possibly as small as 0.85" ID. Any thickness from 0.005" to 0.010" would work. Material is unimportant, other than it be reasonably tough and bondable with cyanoacrylate adhesive (loc-tite, crazy-glue, etc.).
This washer will act as a thin standoff to lift a piezo-electric buzzer off a metal surface, to generate a sounding cavity.
I've tried McMaster-Carr and Spaenaur, but can only find washers with 1" OD and 5/8" ID, which is too small a hole in the middle.
Any other suggestions? I had 20 made by a local machine shop, their best method was to stack together 20 sheets of shim stock, machine out the center hole, then put the sheets on a mandrel and turn the outside diameter down on a lathe. It made beautiful parts, but it's not a practical method for production... We'd be looking at 500-1000 pcs/month.





RE: Shim washer/extremely thin stand-off source
Or perhaps contact a label vendor. They should be able to provide you with sheets of die-cut vinyl or similair material that is self-adhesive.
"But what... is it good for?"
Engineer at the Advanced Computing Systems Division of IBM, 1968, commenting on the microchip.
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?
RE: Shim washer/extremely thin stand-off source
RE: Shim washer/extremely thin stand-off source
RE: Shim washer/extremely thin stand-off source
RE: Shim washer/extremely thin stand-off source
Barry1961
RE: Shim washer/extremely thin stand-off source
The only set up is some artwork of the component.
Worked well for me, it might be worth chasing up a local supplier.
RE: Shim washer/extremely thin stand-off source
I echo finman's advice.
regards desertfox
RE: Shim washer/extremely thin stand-off source
RE: Shim washer/extremely thin stand-off source
Lee