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Pond pump enlarging adapter

by sharv999, published

Pond pump enlarging adapter by sharv999 Dec 29, 2012
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2527Views 507Downloads Found in Outdoor & Garden

Summary

This time I needed to enlarge the ID of another of my pond pump's outflow ports from 12 mm to 25 mm to suit a larger hose. Change the diameters in the OpenSCAD to suit your own installation.

Instructions

Printed on a Replicator 1 using 1.70 mm ABS at 100% infill (watertight ...) with 0.2 mm layer thickness and 120 mm/s feed rate (go Sailfish!). Use a raft and print with the larger diameter flush with the build plate. Mk II - lengthened larger diameter end and reduced no. of large barbs to 3.

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Why the adapters? What are you working on?

I've got a couple of pumps that need to fit existing pipework, hence the adapters. And it's also a good excuse to try out Sailfish on my Replicator 1 ...

nice. the ribs prove to be water tight?

Yep - the ribs are water tight, although the pressure is not too high as this is an enlarging adapter. ToDo: tweek the barb shape to be slightly less acute (i.e., flatter) and maybe lengthen the larger diameter section...

I think the smartest thing you could do for sealing is not to change the barbs, but to print a pip clamp to go around it. Or just use a purchased pipe clamp.

Not to say that you shouldn't always improve your designs! :P

Yes - agreed. A pipe clamp is the simplest solution. Would make a nice OpenSCAD project too (but quicker to just purchase one from the local hardware store ...). Thanks for the comments!

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