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DLP print in process.JPG
DLP_example.JPG
DLP diagram.jpg

This link came in the mailbag from one Junior Veloso, of Singapore, who has produced this very impressive homemade photopolymer-based 3D printer. Traditional stereolithography uses a scanning UV laser to cure the liquid resin, one layer at a time. A DLP printer is similar, but uses a micromirror-based video projector to expose each layer, as shown in the diagram. Junior’s version exposes each layer for four to eight seconds, resulting in print times on the order of several hours. The resin has to be opaque to prevent “shadowing” from light transmitted through the printing layer. [Thanks, Junior!]

Sean Michael Ragan

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.


  • mattn

    this looks like a very nice upside down version of this 3D printer developed at the University of Illinois.
    https://nano-cemms.illinois.edu/materials/3d_printing_full

    The chemicals only cost a little over $100 due to the amounts their sold in, but is very easy to setup and get running. I first saw this at the 2009 National NSTA Conference where they printed a nano chess board in 5 minutes.

    Their automated process that works off a 3D computer model must make the preparation process incredibly faster.

  • http://profiles.google.com/lau.dezhi Kevin Lau

    Amazing!

  • http://profiles.google.com/lau.dezhi Kevin Lau

    Amazing!

  • majur 1

    I want to buy thes product
    Please send me detail
    and price
    Thank you!
    Looking forward
    faheem ahmed 

  • majur 1

    I want to buy thes product
    Please send me detail
    and price
    Thank you!
    Looking forward
    faheem ahmed 

  • majur 1

    I want to buy thes product
    Please send me detail
    and price
    Thank you!
    Looking forward
    faheem ahmed 

  • kitipoom kanjana

    what is program for interface ?

  • kitipoom kanjana

    what is program for interface ?

  • http://www.facebook.com/people/Harry-Lugo/615320330 Harry Lugo

    I’d Like to make one too. But While I do have a spare Laptop to use, I don’t have a projector. Pico Projectors are small and inexpensive. Here is a Like to one on ebay http://cgi.ebay.com/Optoma-Pico-PK101-DLP-LED-Pocket-Projector-/350484151663?pt=LH_DefaultDomain_0&hash=item519a7bbd6f

    Sean do you think this will have the resolution to crisp enough edges on the Models?