02-10-2022, 08:07 AM
The speed of chemical reactions are usually temperature dependent , the photo polymerisation reaction is no different.
Pushing up the exposure time gets more molecules reacting and since the reaction is exothermic that helps to warm things up .
Over exposure will effect quality , as the reaction tends to spread with time , so if you need short exposures , and nice warm temperatures.
When it's cold in my resin printer 'cupboard' in the lean-to on the back of my house, I heat the cupboard with a small PTC fan heater and warm the build plate on the stove prior to printing.
Pushing up the exposure time gets more molecules reacting and since the reaction is exothermic that helps to warm things up .
Over exposure will effect quality , as the reaction tends to spread with time , so if you need short exposures , and nice warm temperatures.
When it's cold in my resin printer 'cupboard' in the lean-to on the back of my house, I heat the cupboard with a small PTC fan heater and warm the build plate on the stove prior to printing.