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      • Setup
        • Adding Materials
        • Mounting the Substrate
        • Dispenser Assembly
      • Print 1: Calibrate
      • Print 2: Dispense
      • Print 3: Selective Print
      • Print 4: Alignment
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  • Get To Know NOVA
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On this page
  • Load Pattern
  • Choose Materials
  • Mount Substrate
  • Estimate Alignment
  • Tune Alignment
  • Measure Height
  • Prepare Dispenser
  • Flow Check
  • Print Pattern
  • Inspect Print
  • Artwork Finished

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  1. Getting Started
  2. NOVA Starter Project

Print 2: Dispense

PreviousPrint 1: CalibrateNextPrint 3: Selective Print

Last updated 23 days ago

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To start a simple print with our newly calibrated settings, we can use the Dispense workflow. This workflow will guide us through each step of the process needed to get a great print on our substrate.


To get started, we’ll select the DISPENSE workflow tile from the home screen of NOVA’s software:

Much like the Calibrate workflow, The Dispense workflow has a similar interface. All of the prompts for us as the user will appear on the left hand side of the screen.

Load Pattern

Our first step is to import the file that we would like to print. You can download the file for this exercise below and load it into the file import section:

Once loaded, we will see the green file previewed in the print area in the center of the screen. We can zoom in to see it better by using the scroll wheel on the mouse or the similar action for a trackpad.

With the file now loaded, we can click Next.

Choose Materials

We’re now prompted to load in the materials we prepared earlier. For the Paste selection we’ll find the ink we calibrated and select the appropriate batch:

Then, for the Substrate we’ll select the FR4 substrate we added from the explore library:

With our materials selected, we can now Generate Toolpaths for our files. Since our file uses our material settings to determine the optimal path to draw we need to have those selected first. Once we click the Generate Toolpaths button we will see the pathing load in our print preview. If we zoom in we can see the individual toolpaths more clearly.

Mount Substrate

Estimate Alignment

The alignment process here will be essentially the same as the alignment we did in the first exercise. We’ll be a little more picky about placement this time around. Instead of aligning anywhere in the quadrant we’ll be aligning to specific points.

1

Set Pivot

For this design we’ll select the small alignment pad in the top left corner. This feature isn’t critical to our print, it has been added just for alignment. Often these are called alignment fiducials and they can be used as alignment markers for more complicated designs, like a multilayer print. To select this feature we’ll click on it with our mouse. Once clicked, we should see the yellow crosshair move to our selected feature (it may be pre selected by default).

2

Set Pivot Position

With our pivot set, we can click on the second step Set Pivot Position. The camera will need a minute to prepare itself on the XYZ tool and then move to our substrate. It’s an important step in making sure our prints are properly aligned.

Once the camera is finished preparing, we’ll see our design as an AR overlay positioned in the center over NOVA’s print area. We’ll use the movement controls or arrows on our keyboard to move our Pivot feature over quadrant 2 of our substrate. For this print we’re aiming to align our pivot point with the fiducial already on the board. To fine tune the alignment we can change the step size of the movement controls by clicking the number in the middle. We can also click in the camera feed to move the pivot to the position of our click.

Click Next once the placement looks right.

3

Set Rotation

Because we mounted our substrate in line with the mounting grid, we shouldn’t need to worry about rotation for this alignment. So we can click Next again.

Tune Alignment

This exercise we’re going to go through the tune alignment step. This is because we were only focused on one of the fiducials in our design in the previous step. We can use the Tune Alignment step to ensure our other fiducial is also aligned properly.

To do this, we’ll click the SCAN SUBSTRATE button. NOVA will then take a couple pictures across our substrate to show how our design is aligned in those places.

Once our substrate has been scanned we’ll focus in on the second fiducial:

If anything is going to be off, it will likely be the rotation. We can use the rotation controls to tune the alignment here. Again, we can adjust the step size by clicking the number in the middle of the controls.

Once we’re happy with the alignment of the second point we can click next.

Measure Height

As a recap, we use the probe to measure across the surface of our substrate to generate a heightmap for the dispenser to follow. You’ll notice we’re also measuring the calibration plate in this step.

Prepare Dispenser

Flow Check

This step differs from the Calibration workflow because we’re not looking to adjust the print settings for the flow check. We just want to ensure that ink is coming out the tip of our nozzle before we start printing. This is more of a priming step to ensure our dispenser is ready for printing.

For the flow check, NOVA will print 3 lines and then snap a picture. We’re not worried about all three lines being full, once we see one solid line we’re ready to print. So we can repeat this step until we see one solid line.

Print Pattern

We’re ready to print our pattern. By default the whole pattern is selected to start printing. This is indicated by it displaying green. Unselected features will show blue. You’ll notice a few parameters can be changed in this step as well. This is to allow us to make tweaks to our Dispense pressure and Relief pressure on the fly while our pattern prints. We won’t worry about them for this print, but it's worth noting for the future.

When we’re ready to print we can click the Start button.

Inspect Print

Once our print is complete we can use NOVA’s onboard camera to inspect our print. We can use the arrow keys to move the camera or we can click on our print location in the print area map in the bottom left corner of the software.

Artwork Finished

Our dispense workflow is complete. We can click EXIT to return back to the main screen of the software. On the way, we’re asked to provide quick feedback on where our print went well or not.

Feel free to move onto the next print exercise.

Our substrate should already be in place from the previous exercise. But if this is a new print session jump back to the and then come back when ready.

We've already done this so we can now mount the dispenser and click next. If this is a new print session, go back to the prep step and come back when ready.

Mounting the Substrate prep step
Dispenser Assembly
2KB
NOVA Starter Print 2.gtl