Fabrication

NPT Threading of Butyrate Pipe

Butyrate, being a cellulosic, is friendly to most fabrications. The days are past when one could purchase butyrate fittings such as elbows and tees, but butyrate pipe can be connected to metal or PVC pipe by means of compression fittings, slip fit and O-ring type...

Set Screw Coupling Of Sleeves

Busada transparent sleeves can be coupled in many ways: solvent bonding, solvent spot welding, axial slit and clamping, radial slit and clamping, and heat expansion. In situations where attractiveness surpasses utility, we recommend small conical set screws. They are...

Fabrication by Mitering of Ells, Bells, and Flanges

Here is an illustration showing our method of fabricating 90° ells from a straight section of CAB Tenite clear extruded butyrate pipe. This example is from 4" Sch 40 pipe. The ends of the two pieces to be joined are cut on a 22½° angle. A short filler cut with the...

Water Sediment Tester With Butyrate Pipe

A water treatment company needed a system to display its product in its showroom and for trade shows. The system required 4" Schedule 40 Pipe that would be bent, coupled, threaded, and coupled with tees and wyes. It was challenging in a number of ways. We had to cram...

Pneumatic System Senior Mechanical Engineering Project

A 5-man team of senior mechanical engineering students at the University of Missouri contacted us for their required capstone design project. They were to build a functioning model of a coal log pipeline design which was patented by two Mizzou professors back in the...

Custom Air Filter

When a request for a custom air filter came in with an associated drawing we got to work. The original print imposed an untenable bend upon the 2″ OD butyrate tube, so we suggested mitering.After a bit of back and forth, we suggested another change. As this...

Restoration Of 1969 Chevelle Instrument Panel

Over two years ago we received an inquiry from Glenn Stracher, a geologist at EGSC. He needed a plastics tube that could be fabricated and colored to function as a replacement piece for an instrument panel on a classic Chevelle restoration. Glenn gave us constant...

Making A Para-Truncated Cylinder (A.K.A. Train Tunnel)

We were approached by a lighting manufacturer to form a suitable transparent casing and shell for an industrial light. Normally extruding this would be the answer, but the quantity needed did not justify the tooling. So, using a secondary fabrication process, we...

Mitering And Bending 8″ Tubing For Display

A well-known entertainment company contacted us about a special project. They wanted a large OD tube to move along the sides and corners of an amusement building. But, their print called for an 8" OD tube on a 24" radius. This required a solvent-welded-mitered bend....

Coffee Roaster

In July we received a print to bend tubing for a trade-show coffee roaster display. We had two weeks to meet a deadline. We elected to make the bends out of a 3" OD butyrate tubing with a .125 wall. The bend radii were as tight as 8" CLR. Dry ice worked as the...

Tight Radius Mitered Pipe Bends

We recently had quite a challenge from Metraflex regarding a transparent tight-radius 4” pipe 90° bend. They required a transparent 4” Sch 40 long-radius elbow to observe a metal fin in a fluid system. The pipe bend needed to maintain a tight tolerance for ovality as...

LED Tubing Gets Some Culture

When the noted Adirondack Studios asked for a light diffusive tube for a “fire ring” I had no idea that it would lead to a trip to Chicago and some much-needed culture. All that I knew was that this fire ring was to be used in an opera. It was to be made in 16...

Matching a Carrier with a Sleeve in Pneumatic Systems

Sometimes we just have to be creative when we get calls from damsels in distress. We received a call from such a damsel who needed to replace a worn-out PVC tube and a more worn-out HDPE carrier. Busada pneumatic tubing consists of three major parts; the tube, the...

Macro-Algae Bio-Absorption Filters

Pax Bellum contacted us regarding their macro-algae bio-absorption filters for the aquaculture and aquarium industry. The devices use a central light assembly consisting of a plurality of LEDs affixed to a water pipe or heat pipe. They were looking to replace the...

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