Archives’s Online Rocketry Tools

I received an email a couple of days ago reporting a problem with one of the Online Rocketry Tools at It turns out that all of the tools were broken due to an error in restoring a backup of the web site.

I’ve fixed the problem and the tools are now working again.

In the future, I plan to move to tools to At the tools will receive more exposure and will be easier for me to maintain and enhance. But, for now, you can access the following tools at

Centering Ring / Motor Mount Tool

The Centering Ring / Motor Mount Tool prints a template for a centering ring or motor mount. The template can be printed actual size. The parameters you enter to define the ring match those used by Balsa Machining Service which makes this tool useful for ‘visualizing’ a center ring or motor mount before ordering it

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