Friday, March 1, 2013

Exposure Tests

I ran some exposure tests last night. I placed a small amount of UV resin into a plastic sandwich bag and laid it flat on the Resin tray. I went to a middle layer slice of a model slice and I let the resin expose for approximately 30 seconds.
Exposing the Resin to the projected image

As you can see, the resin set into the slice of the projected image. Exposure time took longer than I thought it would, and the resultant piece was still very soft and rubbery. I think I'm using a non-optimal UV resin for this printer. (I bought a quart over 2 years ago from that was meant for surfboards). I need to bite the bullet and invest in a small quantity of of resin that is specifically designed for 3d printing.
The resultant created object.

If anyone knows of a site where I can purchase a small (quart or liter size) amount of UV resin specifically designed for 3D printing, please let me know.


  1. Hello, my name is francesco I also built a 3D resin printer, sorry for my poor english (I'm Italian) for the resin try these sites:
    I hope you will be of help

  2. Thanks for the information, I got some ink from by3dink. Hopefully, it will be exactly what I need.