My name is Charles, and I created the RTC Precision Systems toolkit to document practical engraving methods developed through real-world testing.
I work hands-on with the xTool F2 Ultra, exploring how thermal control, parameter discipline, and structured testing influence engraving quality.
I have no affiliation with xTool or any other company.
The reason I developed this toolkit is simple: when I started working with the machine, it was difficult to find clear, practical, hands-on information online.
Many guides on the internet focus on random settings or quick tutorials.
My goal is different.
I focus on understanding the process behind engraving results — how power, speed, frequency, and cooling interact to produce predictable outcomes.
The resources in this toolkit were developed through:
repeated calibration testing
real engraving projects
systematic parameter logging
Everything included is designed to help other makers move from trial-and-error engraving to controlled, repeatable results.
I believe the best way to learn laser engraving is through structured testing and observation, and this toolkit was built to support that approach.
If the toolkit helps you improve your engraving results, I’m glad it could be useful.
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Reviews
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Matthew on Oct 5, 2026
5 out of 5 starsSuper insightful, wish I had this when I bought my machine a year ago, this should come with ever F2 xTool ultra!
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Sydney on Oct 2, 2026
5 out of 5 starsCharles was extremely helpful and quick to respond to my questions. The customer service was excellent, and you can tell he truly cares about his customers and making sure they have a great experience. I really appreciated his help and would highly recommend!
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Amr on Jun 15, 2026
5 out of 5 starsI had been searching for this kind of information for a long time, and this resource exceeded my expectations. It clearly explains everything you need to know about laser engraving, especially when using the xTool F2 Ultra. The guidance provided is extremely valuable and helps users fully understand the system and maximize the performance and capabilities of their laser machine. In addition, the seller is very responsive and provides excellent support if you encounter any issues with downloading this system. I highly recommend it to anyone looking to get the most out of their laser engraving experience.
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Marcelo on Jun 11, 2026
5 out of 5 starsGreat guide as i'm new to laser engraving this is a must have
About RTCSystems
Shop members
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Charles Waller
Owner
I'm Charles, a laser engraver passionate about creating quality products and sharing practical knowledge. My guides are based on hands-on testing and real-world experience, helping makers achieve better engraving results with confidence.
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Cancellations: not accepted
Please contact the seller if you have any problems with your order.