wallPen E2 - Working with the Reference Point

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Best Practice

and your previous actions to solve it. If your files are too large for email, please use a

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6.2.3

Working with the Reference Point

The two red laser dots to the right of the print head serve not only for automatic

measurement of the distance to the wall (Distance Control) but also as reference points

for the start position of your prints.

Determine the distance values

In order to be able to use these points as a useful reference, the exact distance from

the upper laser point to the lower left corner of your print must first be determined for

each print configuration (1/2/4/8-pass). To do so, please proceed as follows:

1. For printing, use a smooth and clean vertical surface, such as a white plastic plate or

paper.

2. Clean the wheels, make sure the floor is level and clean without any steps or

obstacles.

3. Make sure the print-head unit can freely move up for about 15 cm along the plate,

while the distance to the substrate stays within 2 to 3 millimeters without using the

laser distance control.

4. Use a pencil to mark the exact actual position of the upper laser dot on the wall

before starting the printing process.

5. Create and print a graphics file, i.e. a simple small rectangle 10 by 10 cm. It might

be any image, until there is color (ink drops) in its lower left corner. The pictures

below show an image with just vertical lines in 1 cm distance and the lower left

corner closed.

6. Measure the horizontal and vertical distance from the lower left corner of the grid

to the pencil mark. For this, the use of a triangle ruler is very helpful, which can be

aligned at the bottom edge of the grid and both distances can be read quite

exactly.