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Itching to publish!

November 29th, 2011

Here it is! The VAT Tilt test X-axis. Did only a few layers, but watch the VAT tilting:

Good Night for me and Good Morning to the other side of the planet!

Categories: VAT, X-Motion Tags: , , ,
  1. chris
    November 29th, 2011 at 15:06 | #1

    Hi!
    great work!

    currently I´m thinking to built also one – mainly because of the high quality prints.
    I would be very interested in, which electrical components are needed additionally to the steper drivers, how the whole stuff is wired and how the Mach3 has to be configured.

    Do you plan to publish a detailed building plan or part lists too?

    Again, congratulations !
    b.r.
    chris

    • Printer
      November 30th, 2011 at 01:01 | #2

      Hi,

      There are only stepper drivers, power supply for them, steppers and limit switches. The Config of Mach3 Demo is step/dir 2,3 -X and 6,7 -Z axis. You need to tune your motors.
      I’ll add an emergency button and home switches. The stepper driver are setup for 1/2 step.
      Pretty much everything is posted as far as building plan or parts list.

      Cheers!

  2. Brian Stott
    December 1st, 2011 at 06:16 | #3

    So, As it looks the VAT has liquid resin. The Z-axis lowers build platform to level of fluid. The VAT tilts up towards the build plate and within a specific print layer thickness from the silicone. The projector flashes the image – curing the resin. The VAT tilts down to peel the silicone from the cured resin. The Z-axis repositions and the VAT tilts up. The process repeats. Is this the order?

    • Printer
      December 1st, 2011 at 11:40 | #4

      The complete procedure is:
      1 Home Z axis ( if not already – Absolute) – Top
      2 Home X axis ( if not already – Absolute) – Bottom
      3 Move the Z to 10mm from start position
      4 Move the Z to 0 slowly
      5 Move the X to 0 slowly
      6 Project Image
      7 Move X to bottom
      8 Move Z Up a little to reposition
      9 Move Z Down -layer thickness ( 0.025 )
      10 Move X to 0
      11 go back to 6 until the layers are exhausted.
      12 once exhausted move X to home ( bottom ) and Z to home (top )

  3. May 15th, 2012 at 10:17 | #5

    Peter,
    You are using a tilting VAT. Do you think this kind of movement has advantages over an „only“ horizontally shifted vessel?
    Maybe tilting better mix the liquid resin?

    Walter

    • Printer
      May 15th, 2012 at 23:34 | #6

      Hi Walter,
      The advantage is in the filigree detail I can get from the tilt. The horizontal shift may bend or/and distort the model being printed.
      Everyone has their own requirements and resin viscosity plays a big role in it with the horizontal slide of the VAT.
      Peter

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