Displaying the most recent of 23 posts written by

chris

Just trying to stay lucky…

The last few months of 2011 have been rocky for people living on the East Coast.  The recent acts of nature that have plagued Connecticut have tested our ability to get work done in spite of power outages.  During Hurricane Irene, we lost power for 4 days and with the October nor’easter, we were 2 [...]

Acrylic Vapor Polishing as a Service

Here are a couple pictures of some vapor polished acrylic manifolds we did for one of our customers.  This shows how vapor polishing can improve the finish of deep, small diameter holes and threads. Secondary Finishing Vapor Polishing See and download the full gallery on posterous Posted via email from ecpm’s posterous

Milled, Turned and Vapor Polished Ultem Manifold Block

Here are a few quick shots of a part that does a good job of showing East Coast’s capabilities.  This part was turned, milled and vapor polished.  It also has several different sized threads and a sealing port with and o-ring groove.  It is also a good example of how Ultem nicely vapor polishes. See [...]

Tips for Customers and Engineers Who Want Vapor Polished Plastic Parts

Here is set of photos showing the progression of vapor polishing a plastic part.  The first shot is of the part before polishing.  The second is during vapor polishing.  We only polished half of it to show the difference in finish that vaporing can offer.  The final photo is of the part fully vapored.  Many [...]

G10, FR4, and Fiberglass Machining at ECPM

At East Coast Precision Manufacturing, we not only provide our customers with machined plastic but also other composites.  This is an example of G10 machining.  Some engineers may recognize it as FR-4 but we often refer to it as “fiberglass” here at the shop.  It is a laminated composite held together by an epoxy binder.  It is [...]

Clear Polysulfone Machining at East Coast Precision Manufacturing

Here are some photos of a plastic part machined out of clear polysulfone.  Engineers choose polysulfone for their applications because it has a very high service temperature.  This allows it to be used in assemblies where high temperatures are encountered regularly, such as autoclaves.  Polysulfone can also be used as a membrane in filtration systems. [...]

About Machine Screw Diameters

I recently read a good post about nominal screw diameters and hole clearances over at Toolmonger, a blog I personally read. Give it a look if you’re interested. They regularly feature interesting tools, projects, and ideas that engineers would enjoy reading. From Scissors to Shop Class History to Gauge Blocks, they have some great stuff!

Milled & Vapor Polished Polycarbonate Coverplate

This part is an example of our milling department’s capabilities.  It is machined out of a sheet of polycarbonateand vapor polished to a perfectly clear finish.  Engineers designing parts that require visually or optically clear finishes should know that polycarbonate is an excellent material choice.  Acrylic works well too but polycarbonate polishes to a clearer finish almost every [...]

Teflon Insulator with C-axis work

Teflon work has been a core component of East Coast Precision’s lathe department.  Teflon is often used as an insulator in radio connections or as a gasketing material due to its inert qualities. This is an example of some micromachined Teflon parts we made a few weeks ago.  This part was cleanly machined with no burrs  in [...]

Vapor Polished Polycarbonate Button

Take a look at some more of our work in polycarbonate.  This part was turned on a cnc lathe out of polycarbonate, sometimes referred to as lexan.  It features a vapor polished finish and concentric grooves on the face.  This part is a button that is backlit by a light.  It is believed that the concentric grooves will help [...]