4-11 Focus Distance Micro Adjustment

Description

If you find that the distance after autofocusing is incorrect or does not meet your needs, or if you want to manually increase or decrease the autofocus distance, the HEXA RF has a built-in feature to adjust this distance.

Please follow the steps below to check and adjust the focus distance.
The focus distance can be finely adjusted by ±2mm.

Step 1

Prepare a hard piece of material, such as acrylic or wood, along with coins or an object that is 4mm thick.

Coins are easy to obtain and can be used to measure the distance.

Step 2

Place the material in the center of the working area and execute autofocus using the touch panel.

Step 3

Ensure the focal lens is at the default layer (top layer). Please read the following instructions carefully to understand the concepts of the lens position and focus distance.

Focus Mode Description

By default, the focal lens is located at the top layer, and the focus distance is 4mm, which means the distance between the nozzle tip and the material surface is 4mm. How to adjust the focal lens position? 1. Disassemble the focal lens   2. Confirm the order for the focus mode   Focus Mode: 4mm (Default) Lens Baffle Fixing Ring Nozzle   3. Reassemble the focal lens The red side of the baffle must face down. The convex side of the focal lens must face up. (A quick tip to identify the convex side: when you look at it, you should see a complete reflection of your face.) Rotate the fixing ring counterclockwise to tighten it.

Step 4

Please ensure your focal lens is located at the default layer (top), as in Step 3.
Turn on the machine power, go to "Hardware Settings" to select the correct focus mode.
Machine >> Hardware Settings >> Next Page >> Focus Mode >> Select "Short Focus (Default)"

Step 5

Use coins or a 4mm thick material to measure if the focus distance is correct. 

Insert the coin or material into the gap between the material surface and the nozzle tip.
Observe the gap distance to determine if it is too long or too short.

Step 6

Enter the manual distance adjustment function. 
(Machine > Settings > Hardware Settings > Next Page > Probe Error Correction)

Step 6

Setting the value to "-" will lower the work bed in mm.
Setting the value to "+" will raise the work bed in mm.

Example #1: If the coin or 4mm thick material cannot be inserted, it means the distance is too short, therefore you must set the value to a negative number to lower the work bed.

Example #2: If the gap is too large after inserting the coin or 4mm material, it means the distance is too long, therefore you must set the value to a positive number to raise the work bed.

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