Slide dryers are designed to gently warm glass microscope slides to decrease the drying time for experiments after cleaning steps. Slide dryers allow users to increase their productivity. Slide dryers are available commercially for $225–5245. This one can be built for $20. Full description [here](http://www.appropedia.org/General_Design_Procedure_for_Free_and_Open-Source_Hardware_for_Scientific_Equipment#Parametric_Open_Source_Slide_Dryer): http://www.appropedia.org/General_Design_Procedure_for_Free_and_Open-Source_Hardware_for_Scientific_Equipment. This project was developed by Shane Oberloier as part of our work on developing open source design for [Open Source Labs](http://www.appropedia.org/Open-source_Lab) : http://www.appropedia.org/Open-source_Lab.