Resin 3D Printing Layer Time Calculator | Adjust Exposure Times

If you're into resin 3D printing, you know that adjusting layer exposure times when changing layer height is crucial for successful prints. But calculating the correct exposure time is also incredibly annoying. That's why I've created this handy resin 3D printing calculator to do the math for you.

Based on the information from this video by 3Dprintingpro, this layer time calculator helps you determine the adjusted slow layer time and regular layer time when you change the layer height on your resin printer.

(Calculator is at the bottom of the article)

How to Use the Resin Layer Time Calculator

To use the calculator, simply enter your current slow layer time, current regular layer time, current layer height, and the new layer height you want to use. Then click "Calculate" to get your adjusted layer times instantly.

Understanding the Layer Exposure Formula

The calculator uses the following formula to calculate the adjusted exposure times:

Adjusted Exposure Time = Current Exposure Time - (((1 - (New Layer Height / Current Layer Height)) / 2) * Current Exposure Time)

This formula is used for both the slow layer time and the regular layer time. It calculates the proportional change in layer height, halves this proportion, and subtracts it from the current exposure time to get the adjusted exposure time.

This calculation is based on the assumption that the exposure time is roughly proportional to the layer height. So, if you're decreasing the layer height, you'll need less exposure time, and vice versa.

Tips for Perfect Resin Prints

Remember, this 3D printing calculator is just a starting point. Always monitor your prints and adjust the settings as needed based on the results. Fine-tuning your layer exposure times will help you achieve better print quality and reduce failed prints.

Happy printing!

Here's the calculator: