How to Perforate a Pup Joint? 1

Cockroach · Feb 22, 2012

I have a 88.9 mm OD X 13.84 kg/m Pup Joint (3 1/2 X 9.20#), 3.0 m long, EUE Pin X Pin. The intent is to convert this to a Perforated Pup Joint by drilling 19.0 mm holes through the wall. I need 2.0 m of holes, 14 holes/meter. The hole pattern is a helical wrap, each hole is 60 degrees apart.

How can I perform this without independently creating each hole using Hole Wizzard? Clearly the Sweep doesn't work and the pattern is neither linear or circular, but a combination of to produce the thread-like helix.

So how can I produce radially drilled holes at intervals along the helical path?

Regards,
Cockroach

EEnd · Feb 22, 2012

You might be able to do this with a curve driven pattern where the curve is a helix.

If that fails, you can create the first revolution of holes (6 holes 60deg apart = 360deg) and pattern those.

Eric