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Re: Hi all, just a new guy on the block.

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  • dlp_builder
    Hi Walt, I just posted a hughe reply and then the f..... Yahoo said sorry can t post this now, try again later, and all my work was lost! Don t they understand
    Message 1 of 9 , Aug 2, 2013
      Hi Walt,
      I just posted a hughe reply and then the f..... Yahoo said sorry can't post this now, try again later, and all my work was lost!
      Don't they understand that that is soooooo frustrating!

      I will try again later.

      --- In diy_3d_printing_and_fabrication@yahoogroups.com, "Walt Lockard" <designpraxis@...> wrote:
      >
      > Hi DLP_Builder,
      >
      >
      >
      > I took a look at your picture album. Very nice. It looks like you are
      > getting some great resolution on the frog model. I am trying to decide on a
      > DLP projector and have narrowed it down to a number of models. My goal is
      > to max out on the lumens (2500 - 3000 ANSI), the native resolution (1920 X
      > 1080), the contrast (15K-20K:1), and a minimum throw distance (feet). I
      > have a max of $1000USD for the projector. If you had this budget, what
      > would you get? My wish is to create a print size similar to the Envisiontec
      > "Ultra" which is 10.5" Length X 6.5" Width X 8" Depth. Again, I want to
      > build a top-down printer, similar to yours. Thanks.
      >
      >
      >
      > Best Regards,
      >
      >
      >
      > Walt Lockard
      >
      >
      > d e s i g n p r a x i s, i n c.
      >
      > "Your Solution - Our Expertise"
      >
      >
      >
      >
      >
      > From: diy_3d_printing_and_fabrication@yahoogroups.com
      > [mailto:diy_3d_printing_and_fabrication@yahoogroups.com] On Behalf Of
      > dlp_builder
      > Sent: Sunday, July 28, 2013 6:53 PM
      > To: diy_3d_printing_and_fabrication@yahoogroups.com
      > Subject: [diy_3d_printing_and_fabrication] Re: Hi all, just a new guy on the
      > block.
      >
      >
      >
      >
      >
      > Hi Walt,
      >
      > The Top Down and Bottom up are two diff. configurations which give me
      > headache all the time! everyone has a diff. perspective lol.
      > I have made an album with some of the pics. Simple and Cheap is the credo
      > here, but I'm tempted to change the setup to an upside down printer. Just
      > because of the focusing before starting to print and the size of the vat.
      > The sticking problem to the vat is solved,so no fumbling around with with
      > dupont film.
      > Nice to hear from you and if you have any questions, don't hesitate to drop
      > a line.
      >
      > DLP_Builder
      >
      > --- In diy_3d_printing_and_fabrication@yahoogroups.com
      > <mailto:diy_3d_printing_and_fabrication%40yahoogroups.com> , "Walt Lockard"
      > <designpraxis@> wrote:
      > >
      > > Hi DLP_Builder,
      > >
      > >
      > >
      > > Congratulations on completing your 3D DLP printer. Is it a top-down or a
      > > bottom-up configuration? I'm in the process of putting together a top-down
      > > printer, but have a ways to go. Have you uploaded any of your printed part
      > > photos? Can't wait to hear more about your printer and resin development.
      > > Thanks for sharing your expertise.
      > >
      > >
      > >
      > > Best Regards,
      > >
      > >
      > >
      > > Walt Lockard
      > >
      > >
      > > d e s i g n p r a x i s, i n c.
      > >
      > > "Your Solution - Our Expertise"
      > >
      > >
      > >
      > > From: diy_3d_printing_and_fabrication@yahoogroups.com
      > <mailto:diy_3d_printing_and_fabrication%40yahoogroups.com>
      > > [mailto:diy_3d_printing_and_fabrication@yahoogroups.com
      > <mailto:diy_3d_printing_and_fabrication%40yahoogroups.com> ] On Behalf Of
      > > dlp_builder
      > > Sent: Sunday, July 28, 2013 6:17 PM
      > > To: diy_3d_printing_and_fabrication@yahoogroups.com
      > <mailto:diy_3d_printing_and_fabrication%40yahoogroups.com>
      > > Subject: [diy_3d_printing_and_fabrication] Hi all, just a new guy on the
      > > block.
      > >
      > >
      > >
      > >
      > >
      > >
      > > Hello I'm just another 3D printer enthousiast.
      > >
      > > I have finished my super cheap 3D DLP printer a few months ago. I put
      > > some pics in my folder for you to see. My printer can be build by anyone
      > > and for little money. There is lots of room for improvement and I am
      > > slowly replacing cheap DIY parts by more precise printed parts (Printed
      > > by my own printer)
      > >
      > > The last 3 months I have been busy developing my own resin. Took me some
      > > time to polish up my Poly chemical knowledge, but now I'm about
      > > finished. I have put some pics from some of my prints (STL files I found
      > > on Thingiverse)
      > > The primary drive to develop my resin was the price of the ready
      > > available resin in Europe, and the property drawbacks there are in the
      > > existing resins. Main problems as you have all experienced, the sticking
      > > to the glass problem in 'upside down' printers, Bad curing performance
      > > with unmodified and low wattage DLP projectors. Spending some months on
      > > the subject and with the help of some profs in the field I have nailed
      > > most of the problems.
      > > My printer uses an old E-Bay (marktplaats as we call it here) Infocus X9
      > > DLP projector which has a 180Watts Bulb. I bought 2 of those in one buy
      > > for 150 euro's.......
      > > I have made no modifications to filters or color wheels and lenses. The
      > > cure time is anywhere between 1 and 4 seconds per layer depending on the
      > > resolution and color I put in the resin. So I think that is more than
      > > acceptable.
      > >
      > > Well as you can see I'm seriously involved in the world, nowadays known
      > > as a 3D world (to my wife's regret.)
      > >
      > > Hope I have introduced myself well enough and look forward to speak to
      > > you soon!
      > >
      > > DLP_ Builder
      > >
      >
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