OpenExposer

Yesterday i assembled the new z-axis. It is more stable now. The only thing i have to do is redesigning the build stage. Then i will do a first printing test this weekend.

Today i printed a new z - axis solution for the OpenExposer 3d printer module. I will give it a try tomorrow. It should be more precise now. 

Yesterday i visited the Bay Area Maker Faire. In the Start Up Area i found the booth of MadeSolid. They produce their own printing resins. I told them of the OpenExposer project and got a sample bottle of resin. I will give it a try when i am back in europe.

The first two pictures are showing the results of printing a 8mm x 8 mm x 2 mm cube. On the third picture you can see some of the first exposing experiments.

For testing purposes of the OpenExposer unit, i am building a 3D printer. 

In November last year, i reverse engineered several polygon mirror units of some laser printers i've got from friends. I also ordered some further units from ebay. Now a attiny2313 regulates the mirror motor speed. The attiny2313 should be a part of the openexposer (shield) or arduino compatible board later. Then it should be possible to configure the used polygon mirror unit  by jumpers or a firmware flag.