Most resin printing problems are not a single mistake — they are a mismatch between several interacting variables that the slicer hides behind default numbers. This guide walks through the four variables that control LCD print quality: exposure, lift, temperature and post-cure. We use ANTINSKY Standard Lite Resin 1kg as our reference material.
1. Exposure: The Fine Line Between Under and Over
Exposure time sets how long each layer is cured. Under-expose and parts come out soft, sticky or collapse mid-print. Over-expose and you crush fine detail, get "bloom" on edges and waste time.
| Variable | Sign of Under-Exposure | Sign of Over-Exposure |
|---|---|---|
| Normal layer exposure | Soft, tacky, delaminating layers | Lost detail, fat pixels, "orange peel" |
| Bottom / base exposure | Parts detach from build plate | Over-cured base, hard to remove, elephant foot |
| Rest time | Suction marks, scattered debris | Slow prints |
A good anchor point with Standard Lite resin on a mono LCD is roughly 2.2–2.8s normal exposure and 25–35s bottom exposure at 0.05 mm layers — but always run a calibration model (like a Cones of Calibration or XP2) because the exact number shifts with your screen, brand and even room temperature.
2. Lift Speed and the Quiet Enemy: Suction
Every time the build plate retracts, the cured layer must peel off the release film. Too slow and prints take forever; too fast and suction force can tear thin models or leave "fins" on surfaces.
- Lift distance: 6–8 mm (more for large flat parts)
- Lift speed: start near 60–80 mm/min, reduce for high-detail or fragile models
- Retract speed: roughly 120–150 mm/min so the plate returns fast without slamming
Release film condition matters here too. A scratched release sheet increases suction and ruins yield — see the PFA release film guide in our accessories range.
3. Temperature: The Unseen Variable
UV resin behaves dramatically differently when cold. Below about 22–25°C, viscosity rises, exposure needs increase, and you get brittle or incomplete prints. If your workshop is cold, warm the vat (many 16K machines now ship heated vats), raise exposure slightly and shorten rest times.
4. Post-Cure: Brittleness Is a Curing Time Story
- Wash in IPA or a dedicated resin detergent first; uncured surface resin makes post-cure sticky and uneven.
- Let parts dry fully before curing, or surfaces look cloudy and milky.
- Standard cure time: 6–10 minutes; add a few more for darker or thicker parts.
- Too much curing makes resin brittle. Aim for "fully cured" but not "over-baked".
Starting Point for Standard Lite
| Parameter | Suggested Value |
|---|---|
| Layer height | 0.05 mm |
| Bottom layers | 5 |
| Bottom exposure | 28 s |
| Normal exposure | 2.5 s |
| Lift distance | 7 mm |
| Lift speed | 70 mm/min |
| Post-cure | 8 min |
Every machine is a little different, so treat the table as a starting point rather than gospel. If you need higher impact resistance, note that ANTINSKY also offers ABS-Like Resin, a tougher sibling that prints with nearly the same ease. And for everyday model work, the lightweight Standard Resin remains a solid all-rounder.
5. A Sign Checklist for Failed Prints
When a resin print fails, read the failure rather than the slicer defaults. A part that consistently detaches from the plate points to under-exposed bottom layers or a cold vat. A part that is sticky on one side only often means the suction peeled it mid-print. And a warped or cupped surface usually means over-curing of the base layers during that long bottom exposure window.
Keep a simple print journal: note the date, resin batch, temperature and exposure used. After a handful of runs you will spot which variable drifts with the weather and which is stable. This small habit eliminates most "it worked yesterday" mysteries before they turn into a wasted bottle of resin.
6. When to Move Up From Standard Lite
Standard Lite is an excellent budget workhorse, but it is not the right resin for every job. Choose a higher-spec material when the part must survive repeated impact, high temperature or fine detail that a light-weight formula cannot hold:
- ABS-Like resin for functional prototypes, clips and parts that take knocks.
- A dental or castable grade for jewellery, moulds and medical-adjacent models.
- A transparent or detail-focused grade when optical clarity or micro-detail is the goal.
Matching the resin to the application will save you more money than hunting for the lowest price per litre, because a failed functional part costs far more than the resin that would have made it correctly the first time.