# Testing the final design before it goes to metal

> Printing it in plastic over and over until I stop wanting to change things.

[Articles](https://nomae.com.au/articles) · 10 October 2026

The printer barely stopped this week.

The tracker is going to be 3D printed in metal. Metal parts cost a lot more and take a lot longer to come back, so I want the design locked in before I send it off.

Another test print.

So I print it in plastic first. Each version goes to the gym and gets used for real sets. I'm checking how it sits, how quick it is to move between machines, and whether anything feels loose or annoying. Then I change something small and print it again.

Most changes are tiny. Half a millimetre here, a softer edge there. It's slow, but finding a problem now costs me a few hours and a bit of plastic. Finding it after the metal ones arrive costs a lot more.

When a version gets through a full week of workouts and I don't want to change anything, that's the one that goes to metal. I'm close. I'll post photos when the first ones turn up.

Eamon NOMAE FIT, Brisbane

## More from NOMAE FIT

[**A week of refining the app**: Small fixes that make it feel solid when you're actually mid workout.](https://nomae.com.au/articles/refining-the-app)

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