Air Pump Part Cooler *UPDATE*

One of many free print tests available on Thingiverse

The air pump part cooler returns! Well not really, the pump burnt out after about 2 days of continuous printing. This is why rigorous testing is required when trying something new. So after some closer inspection of the winding of the transformer, I noticed that this unit did not have an inline fuse installed in the transformer and the winding wire was very thin.

So I removed the old winding and replaced it with another one I had on hand. This newer winding has a bit of a heavier gauge wire so it shouldn’t burn out so quick. The reason why this happened to begin with was the removal of the triac circuit. This isn’t really a big deal, if I have this happen again I’ll switch back to the triac circuit and use the duet to control the circuit instead of controlling the transformer directly.

Back in place for more testing.

Now another thing I think I could easily improve with this pump is the overall sound level. I have an aluminum extrusion case(for an old grow light) that I could place the pump into for an overall improvement in noise and heat dissipation. Anyway that’s all I got for today, happy printing!

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