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Bosses,
Standoffs and Rubber Feet
Bosses
and standoffs are an integral part of most electronic
enclosures. However, where possible, we try to avoid using
them in an attempt to keep the customer’s assembly
times as low as possible. If a printed circuit board can
slide or clip in to an enclosure, the customer can benefit
from lower enclosure and assembly costs.
Of course, it is no problem should stand offs be required.
We machine a recess into the surface of the material at
the location of the standoff, this allows for perfect
positioning as well as a greater surface area for bonding.
This also allows us to adjust the usable height of the
standoff by 0.1mm increments.
A great majority of our bosses and standoffs are machined
out of HIPS. If need be, brass threads can be inserted
for use with machine screws, otherwise PT self tapping
screws are usually fine. HIPS standoffs have the added
benefit of being chemically welded into position.
Nylon standoffs may be required due to height limitations
of the HIPS variety. Once again, brass threads can be
inserted for use with machine screws, otherwise PT self
tapping screws are fine. Due to the differences in the
2 materials needing to be bonded, nylon standoffs are
glued into position using Loctite 401.
Desk top enclosures often require non-slip rubber feet
for added stability. As with standoffs, rubber feet are
perfectly positioned by use of a machined recess. This
also makes it a lot harder for the feet to be accidently
removed. |
