Joseph_Osborn

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Joseph_Osborn
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  • I’ve noticed as my projector bulb has gotten higher in hours, the uniformity across the build area has actually gotten better. I’ve never been able to get a mask to work properly, but I’ve always had luck using pigments to control exposure.
  • I decided to check the bulb type because I was still a little skeptical. Sure enough, it does appear to be a genuine OSRAM bulb, but it is the wrong reflector size (a size smaller). Return set up with Amazon and a bare properly sized bulb has been …
  • I’m hoping my bulb dies a slow death. I have a spare on hand, so when the day comes I hope it’s just a matter of pulling out the old and popping in the new.
  • FWIW, I get predictable results and near-100% success from my machine. I’ve logged *every* print I’ve made since November 2015 and since I only use the printer in slot 3 and with one resin, there is very little guesswork. The only variables I have a…
  • I’ll see a little bit of resin creep under the edges of the clinging FEP, but since I’m using just the center of the vat, it doesn’t affect operations at all. Now I’m on a quest to find an FEP that is slicker than what I’ve gotten from flexvat.com.…
  • The VAT is constructed with FEP sheet over PDMS, which will last long.  It is the same as Draken vat -  with better quality.  We are making the VAT ourself this time rather than OEM outsource - the FEP sheet used will be best we have tested so far. …
  • How is the vat constructed?  In the Kickstarter, it appears to be the same Form1-style vat used in the Moai.  Is it PDMS with an FEP protective layer like the Draken vat?  Moai users are experiencing a very high failure rate in their PDMS-only vats;…
  • No better teacher than experience. After replacing the PDMS, will you put down another FEP sheet? If so, what kind will you use? I have used Muve3D’s adhesive FEP to re-line a vat before, but that was a pain in the rear. I’ve also been able to re…
  • Everything I've ever read about DLP projectors says that removing that filter will lead to a rapid death for the DLP chip. Good luck.
  • Honestly, with the way that DLP-based printers are evolving and the rapid emergence of LCD printers, this issue with the serial port on the Viewsonic really isn't a problem that anyone should spend a whole lot of effort on solving. Thanks for what …
  • No, not USB-- the blue RS232 cable between the projector and control board. I did a lot of monkeying around and found that once I establish that serial connection properly, it stays active even if I turn off the Draken and shut down CW. I just star…
  • Interesting Joseph. You powered up the printer first, then connected the USB cable? No, I followed your specific directions-- steps 1,2,3 in order. I will try to do some additional testing today.  My projector is not connected to the Draken's pow…
  • Okay, doing the steps above, in order, does not work with my machine. So I shut everything down and unplugged the blue cable from the Draken board. Then, did all the steps again, but after step 6, I plugged the blue cable back into the Draken contr…
  • May I ask if this actually works to improve UV distribution across the build area with the Acer or Viewsonic projectors?  Do you have any before and after examples showing the results of using a mask generated with this program?
  • Honestly, I think the Draken case is totally unsuited for conversion to top-down. The components (z axis, shutter, controller) could be used for top-down printing if you put them into a new framework. To address your sticking problems with the new…