3. Upgrading the xLCD

Relevant for:

MK4S MK3.9S

Last updated 4 months ago

Difficulty

Easy

Steps

Available languages

Step 1 Tools necessary for this chapter

⬢For this chapter, please prepare:

⬢2.5mm Allen key

⬢Torx key T8/10

Step 2 Removing the xLCD assembly

⬢Unscrew four M3x10 screws mounting the xLCD to the frame.

⬢Remove the xLCD from the frame. Put it in the front of the printer.

Do not pull on the xLCD cables!

⬢Carefully pull of the PE Faston cable.

The position of the PE Faston cable may vary depending on your xLCD version.

Early units have the cable secured by a screw to the PE Faston connector.

⬢Carefully unplug the xLCD connector from the xLCD board.

Step 3 Disassembling the xLCD

Make sure the USB drive is removed from the xLCD.

⬢Remove the knob from the xLCD assembly by simply pulling it off.

⬢Release and remove all screws securing the xLCD board.

Do not discard the PE Faston connector (brass flat plate).

⬢Remove the xLCD-support-left (right from this view).

⬢Carefully remove the xLCD board from the cover together with the xLCD-support-right.

Be careful not to damage the screen on the opposite side of the xLCD.

⬢Remove the xLCD-support-right from the xLCD.

Step 4 MK4: xLCD versions

⬢Find out which version of the xLCD you have. It can be easily recognized by the location of the grounding connection (PE / FE) on the back of the PCB:

⬢The newer version A - the grounding point is located on the top left hole.

(version number 26, 27 and higher)

If you have this version, continue to the next step.

⬢The older version B - the grounding point (marked PE) is located on the bottom right hole.

(rev. 0.12.2, 0.12.3 etc.)

If you have this version, continue to the xLCD B step.

⬢The version numbers are printed on the PCB.

Step 5 xLCD A: parts preparation (part 1)

⬢For the following steps, please prepare:

⬢xLCD-support(1x) new part

⬢xLCD-cover (1x) new part

⬢xLCD (1x) you removed earlier

⬢xReflector sticker set (1x)

The list continues in the next step...

Step 6 xLCD A: parts preparation (part 2)

⬢xLCD-knob (1x) new part

⬢3x8sT screw (4x)

⬢PE Faston 6.3x0.8 (1x) you removed earlier

⬢3x12sT screw (4x)

Step 7 Installing the xReflector sticker (xLCD A)

⬢Peel off one of the individual adhesive xReflector sticker.

⬢Note the separated part of the tape at one end. Do not peel off the remaining part.

If the sticker is damaged during peeling, there is an extra sticker in the SPARE package.

⬢Position the xReflector sticker strip so that it lines up with one side and both the edges of the "gutter" in the xLCD-cover. Continue to lay down the xReflector sticker strip towards the other side of the gutter.

⬢Press the xReflector sticker strip all the way into the gutter so it adheres to the xlcd-cover.

Step 8 Covering the xLCD (xLCD A)

⬢Carefully slide the xLCD into the xLCD-support, ensuring it snaps under the plastic tabs. Align the screw holes in the xLCD board with the holes in the plastic part.

⬢Place the xLCD-cover on the xLCD, orienting it so the encoder passes through the hole in the cover.

Step 9 Installing the PE Faston (xLCD A)

⬢From the back of the xLCD assembly, secure all parts together using three 3x8sT.

The screws cut thread directly into the plastic, so there might be some resistance.

⬢Through the opening in the xLCD-support, place the PE Faston on the xLCD with the exact orientation as shown.

⬢Center the PE Faston in the opening and secure it with the 3x8sT screw.

The screw cuts thread directly into the plastic, so there might be some resistance.

Step 10 Attaching the knob (xLCD A)

⬢Attach and push the xLCD-knob onto the xLCD encoder pin.

Note that there is a flat part on the encoder shaft. There is a geometry on the inside of the knob that should align with the flat part to seat the knob properly.

Step 11 Connecting the assembly (xLCD A)

⬢Connect the xLCD cable to the xLCD board. Ensure the safety latch of the xLCD cable connector is up.

Make sure the xLCD cable is connected in the same orientation as seen in the picture. Otherwise, your display won't work

⬢Slide the connector onto the PE Faston all the way.

Step 12 Mounting the assembly (xLCD A)

⬢There are four holes in the front plate of the printer's frame. Insert four 3x12sT screws through each of them from the inner side.

⬢Attach the xLCD assembly onto the front plate. The screws should fit into the corresponding openings in the xLCD assembly.

⬢Tighten up all four 3x12sT screws.

The screw cuts thread directly into the plastic, so there might be some resistance.

Step 13 What's left... (xLCD A)

⬢You will no longer need these parts:

⬢Old xLCD-cover (1x)

⬢xLCD-support-right (1x)

⬢xLCD-support-left (1x)

⬢Old xLCD-knob (1x)

Step 14 xLCD B

These steps are valid only if you have the older xLCD version B. If you have the newer version A, skip to the end of the chapter.

⬢Take the old xLCD cover.

⬢Remove the M3n nut from the xLCD cover.

⬢Pro Tip: Insert a screw as a handle and gently pull while wiggling it, to remove the nut.

Step 15 xLCD B: parts preparation (part 1)

These steps are valid only if you have the older xLCD version B. If you have the newer version A, skip these steps!

⬢For the following steps, please prepare:

⬢xLCD (1x) you removed earlier

⬢xLCD-cover (1x) new part

⬢xLCD-support-left (1x) you removed earlier

⬢xLCD-support-right (1x) you removed earlier

Step 16 xLCD B: parts preparation (part 2)

⬢For the following steps, please prepare:

⬢xReflector sticker set (1x) new part

⬢xLCD-knob (1x) you removed earlier

⬢M3x8rT screw (5x) you removed earlier

⬢Faston connector 6.3x0.8 (1x) you removed earlier.

⬢M3n nut (1x) you removed earlier

⬢M3x10 screw (4x) you removed earlier

Step 17 Installing the xReflector sticker (xLCD B)

⬢Peel the xReflector sticker off the protective layer.

⬢Apply it into the marked area on the inside of the new xLCD cover.

⬢Press the xReflector sticker strip all the way towards the xLCD-cover, so that it adheres properly.

Step 18 Installing the M3n nut (xLCD B)

⬢Install the M3n nut into the marked opening on the new xLCD cover.

⬢Tip: for better insertion of the nut, screw the nut onto the tip of one of the longer screws and push it into the hole. Then remove the screw.

Step 19 xLCD-support assembly (xLCD B)

⬢Place the xLCD-support-right onto the USB-connector-side of the xLCD board. Notice there is a small hook that goes around the circuit board.

⬢Line up the hole in the plastic part with the hole in the xLCD board.

⬢Insert the xLCD with the support-right into the cover. Note the recess for the support-right in the xLCD-cover. The support must fit into the recess.

⬢Secure the xLCD-support-right and the xLCD board with two M3x8rT screws.

Step 20 xLCD-support-left assembly (xLCD B)

⬢Attach the xLCD-support-left on the xLCD board and align it with three holes in the board.

⬢Insert the PE Faston between the xLCD-support-left and the xLCD board. Align it with the hole and point the PE Faston slightly diagonally as you see in the picture.

⬢Secure all parts together with three M3x8rT screws.

Step 21 Attaching the knob (xLCD B)

⬢Attach and push the xLCD-knob onto the xLCD encoder pin.

Note that there is a flat part on the encoder shaft. There is a geometry on the inside of the knob that should align with the flat part to seat the knob properly.

Step 22 Connecting the assembly (xLCD B)

⬢Connect the xLCD cable to the xLCD board. Note the safety latch on the xLCD cable connector. It must be plugged into the side of the xLCD slot marked with the orange triangle on the board.

Make sure the xLCD cable is connected in the same orientation as seen in the picture. Otherwise, your display won't work

⬢Take the end of the PE cable with square connector. Slide the connector onto the PE Faston all the way down.

⬢Bend the PE Faston down slightly so that it does not protrude too far from the back of the display. Curve the cable according to the drawing on the board.