MANUFACTURING – 3D PRINTING (REIN LA/MLA/DLP) CALCULATOR
Bottom Layer Exposure
A precise tool.
What is the Bottom Layer Exposure & How does it work?
In resin SLA/MSLA/DLP printing the first few layers, called the bottom or adhesion layers, are cured with a higher energy dose to ensure they stick firmly to the build platform.
The exposure time for each bottom layer is a critical parameter: too short and the layers may delaminate, too long and the resin can over‑cure, reducing detail fidelity.
The total bottom exposure is simply the product of the number of bottom layers and the exposure time per layer, allowing users to quickly verify their settings.
T_{bottom} = N_{bottom} times t_{exp}
T_{bottom} = total bottom exposure time (seconds)
N_{bottom} = number of bottom layers
t_{exp} = exposure time per bottom layer (seconds)
N_{bottom} = number of bottom layers
t_{exp} = exposure time per bottom layer (seconds)
Parameters
Result
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Frequently Asked Questions
What is the purpose of bottom layer exposure in resin printing?
Bottom layer exposure ensures that the first few layers adhere firmly to the build platform, preventing delamination.
How does too short an exposure time affect the bottom layers?
Too short an exposure time can cause the bottom layers to delaminate from the build platform.
What happens if the exposure time for bottom layers is too long?
Over-curing with a longer exposure time reduces detail fidelity and may affect print quality.
How do I calculate total bottom exposure time?
Multiply the number of bottom layers by the exposure time per layer to get the total bottom exposure time.
Why is it important to verify the set exposure parameters?
Verifying ensures optimal print quality and prevents issues like delamination or over-curing.
Can I adjust the number of bottom layers for different prints?
Yes, adjusting the number of bottom layers allows customization for various print requirements.
What factors should I consider when setting exposure times for resin printing?
Consider resin type, printer model, and desired print quality to set appropriate exposure times.
Results are for informational purposes only and do not constitute professional advice.