Saturday, April 19, 2025
Cheap, convenient resin curing UV LEDs
A single LED from one of those cheap UV LED USB strip lights does indeed cure eSun Standard Resin in 5 seconds or less through a glass microscope slide. From directly under the glass it cures a patch 4.6mm x 3.6mm in a little lozenge.
The curing zone might spread out a bit when held further away, or at least I hope so because I need to cover a 4mm x 4mm working area. So I'll fiddle around with the right resistor to make it work with 12V and connect it to the RAMPS board on the output GRBL uses for a coolant pump. It shouldn't be too hard to fit between the two parts of the Maus XY Table, and then I'll have what I need to automate multiple resin layers.
[Update: At 5mm spacing below the slide, the UV LED sets an 11mm diameter patch of resin in less than 10 seconds.]
Now, how to get the bloody stuff off the glass slide...
