A month or so ago I did a presentation at the local makerspace about dlp based 3d resin printers. For the presentation I brought in the printer I built for printing high resolution master parts and vat testing (for my flexvat.com vats). The machines I build can look pretty steampunk but apparently the presentation created some interest for building DIY resin printers at the makerspace. Since then I started designing a printer in my free time, eventually made 2d and 3d CAD drawings which I then used to make the 3d prints and laser cut acrylic parts for the construction of the printer frame shown below. My main goal was to create a printer that was inexpensive (printer frame and electronics $150.00-$175.00), that used readily available parts, materials and components. I also wanted the printer to be able to be quickly and easily be built using the resources of any local makerspace or reasonably equipped workshop.
Another important requirement was adjustability, I wanted every part of the printer to be adjustable since this would allow the builder to adapt the printer frame to any projector and vat size within reason or even use uv/daylight lcd’s for layer imaging if desired. The vat platform can be raised and lowered as can the projector platform, the 45 degree mirror can be raised or lowered, moved forwards or backwards or removed if the printer is set up to use a lcd, the linear slide and carriage can also be adjusted up or down. The Cool Breeze seems to fulfill all of the requirements I set for an inexpensive DIY 3d resin printer build. I still have a bit over a month before the build presentation at the makerspace so with so much time still available some minor changes in the design are inevitable, I will also probably add an optional cover. Full build details will be made available (dxf’s, stl’s wiring diagrams, marlin firmware settings etc.) once I freeze the design so stay tuned.