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2C. Preparing the printer (MK4/MK3.9)

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2C. Preparing the printer (MK4/MK3.9)

2C. Preparing the printer (MK4/MK3.9)
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Last updated 2 months ago
2C. Preparing the printer (MK4/MK3.9)
 Difficulty
Moderate
 Steps
36
 Available languages
CSPLDEESITFR
Tools necessary for this chapter
Tools necessary for this chapter
Tools necessary for this chapter
Tools necessary for this chapter
For the following steps, please prepare:
2.5mm Allen key
T10 Torx key
Needle-nose pliers for cutting zip ties
Piece of cloth or fabric (at least 15x15 cm)  for covering the heatbed
Preparing the printer
Preparing the printer
Preparing the printer
Before we start with partial disassembling of the printer, proceed with the following steps:
Unload the filament from the extruder.
Turn the printer off and unplug the power cable.
Remove the steel sheet from the heatbed.
Remove the USB flash disk.
Take off the filament spool from the spool holder and remove the spool holder from the printer.
Disconnecting the xLCD cables
Disconnecting the xLCD cables
Disconnecting the xLCD cables
Disconnecting the xLCD cables
Carefully turn the printer on its side (on the PSU).
Disconnect the PE cable.
Disconnect the xLCD cable.
You may have another version of the connected PE cable. Disconnect the PE and continue as instructed.
Removing the xLCD cable clips
Removing the xLCD cable clips
Removing the xLCD cable clips
Pry out the cable clips using a 2,5mm Allen key.
Pry out and release all cable clips.
Carefully remove the xLCD cables and the PE cable from the cable clips.
Removing the xLCD cables
Removing the xLCD cables
Removing the xLCD cables
Removing the xLCD cables
Using the needle-nose pliers, cut the zip tie near the PSU. Be careful not to cut the cables!
Follow the cable bundle up. Cut two zip ties securing the cable bundle over the xLCD cables.
Cut remaining zip ties on the cable bundle. Their number may vary at this location.
Removing the xLCD cables
Removing the xLCD cables
Removing the xLCD cables
Remove the xLCD cable and PE cable from the cable bundle.
Put the printer back on its feet and leave the xLCD cable and PE cable free next to the printer.
Avoid placing the printer on xLCD and PE cables!
Removing the xLCD
Removing the xLCD
Removing the xLCD
Move the heatbed away from the xLCD.
Release all four screws holding the xLCD in the front plate using a 2.5 mm Allen key. Remove the xLCD from the printer.
Put the xLCD in a safe place for now. You'll need it again soon.
Releasing the PSU
Releasing the PSU
Releasing the PSU
Releasing the PSU
Release two screws holding the PSU-cover and remove the cover from the PSU.
Loosen two screws holding the PSU on the aluminum extrusion. Do not remove them completely! Keep them in place.
Release two round head screws from the front side of the frame securing the PSU. Do not throw them away!
If one of the screws is hidden behind the X-end, manually rotate both threaded rods at the same time to move the X-axis up or down.
Removing the PSU
Removing the PSU
Removing the PSU
Removing the PSU
Slightly lift the PSU until it can be completely released from the printer.
Remove the PSU from the printer and place it behind the back of the printer on the piece of cloth, like in the picture.
You will need to slightly lift the printer to guide the cables out of the frame.
Carefully turn the printer on the "electronics" side.
Avoid putting the printer on the LCD cables!
Guiding the cables
Guiding the cables
Guiding the cables
In the upcoming steps, please tighten all zip ties carefully, as you might pinch/break the cables.
Locate the circular holes in the frame near the Z-axis right motor.
Slide the zip tie through the circular holes in the frame to create a loop.
Guide the motor cable in the zip tie and tighten it. Be careful not to over tighten the tie as it can cut the wires. Cut the remaining part.
Guiding the cables
Guiding the cables
Guiding the cables
Guiding the cables
Continue downwards and using another zip tie create the next loop.
Insert Y-axis motor cable to the current bundle.
Push the cable gently in the zip tie and tighten it so it is snug and holding the wires. Be careful not to over tighten the tie as it can cut the wires . Cut the remaining part.
Following the cables and secure the bundle with the zip tie in the next couple of holes.
Mounting the printer frame support
Mounting the printer frame support
Mounting the printer frame support
Mounting the printer frame support
Slide the printer frame support on the screws in the aluminum extrusions (instead of the PSU).
Move the printer frame support to the frame.
Secure the printer frame support to the frame with two M4x10r screws.
Covering the PSU cables
Covering the PSU cables
Covering the PSU cables
Covering the PSU cables
From the electronics, wrap the PSU cable (including the black&white power panic cable and the green&yellow PE cable) in the textile sleeve.
Leave 2-5 cm from the electronics uncovered. Secure the end of the sleeve with the zip tie.
Wrap the entire length of the bundle and slightly twist the sleeve, not the cables.
Secure the end of the sleeve with the zip tie.
Covering the xLCD cables
Covering the xLCD cables
Covering the xLCD cables
Covering the xLCD cables
From the electronics, wrap the xLCD and PE cables in the textile sleeve.
Push the textile sleeve near to the electronics box.
Wrap the entire length of the xLCD cable bundle.
Using the zip tie, create a loop through the circle holes in the frame around the motor cables and xLCD cable bundle.
Do not forget to include the Z-axis left motor cable on the front side of the frame! See the detail.
Version A: Disassembling the xLCD
Version A: Disassembling the xLCD
Version A: Disassembling the xLCD
Remove the xLCD-knob and keep it for later use.
Release four M3x8 screws securing the xLCD board.
Take off the xLCD-support-left.
Take off the PE Faston 6.3x0.8 and keep it for later.
Version B: Disassembling the xLCD
Version B: Disassembling the xLCD
Version B: Disassembling the xLCD
Remove the xLCD-knob and keep it for later use.
Release five M3x8rT screws securing the xLCD board.
Take off the xLCD-support-left.
Take off the PE Faston 6.3x0.8 and keep it for later.
Version A: Disassembling the xLCD
Version A: Disassembling the xLCD
Gently pull out the second xLCD support, it will pull out the xLCD from the xLCD cover.
Notice there is a small hook that goes around the circuit board.
Version B: Disassembling the xLCD
Version B: Disassembling the xLCD
Gently pull out the second xLCD support, it will pull out the xLCD from the xLCD cover.
Notice there is a small hook that goes around the circuit board.
Preparing the xLCD: parts preparation
Preparing the xLCD: parts preparation
Preparing the xLCD: parts preparation
For the following steps, please prepare:
xLCD-cover (1x) old part
xLCD screen (1x) old part
xLCD-knob (1x) old part
xLCD-support-L-MK4 (1x)
xLCD-support-R-MK4 (1x)
The list continues in the next step...
Preparing the xLCD
Preparing the xLCD
Insert all the way of the M3nS nut into each xLCD-support.
You may use a 2.5 mm Allen key to push the nuts into the xLCD supports.
During handling, be careful that the nuts do not fall out of the parts.
Version A: Preparing the xLCD
Version A: Preparing the xLCD
Version A: Preparing the xLCD
Version A: Preparing the xLCD
Insert the xLCD-support-right on an xLCD.
Notice there is a small hook that goes around the circuit board.
Insert the xLCD screen with the support all the way in the xLCD-cover.
Attach the xLCD-support-left on the xLCD board and align it with two holes in the board.
Secure the xLCD support with three M3x8 screws.
Version B: Preparing the xLCD
Version B: Preparing the xLCD
Version B: Preparing the xLCD
Version B: Preparing the xLCD
Insert the xLCD-support-right on an xLCD.
Notice there is a small hook that goes around the circuit board.
Insert the xLCD screen with the support all the way in the xLCD-cover.
Attach the xLCD-support-left on the xLCD board and align it with three holes in the board.
Secure the xLCD support with three M3x8rT screws.
Version B: Installing the PE Faston
Version B: Installing the PE Faston
Version B: Installing the PE Faston
Insert the M3x8rT screw into the PE hole and secure it.
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 one M3x8rT screw.
Haribo time!
Haribo time!
That was easy, wasn't it? Reward yourself and replenish your energy for the next chapter.
Eat the second row of the gummy bears. Leave the others!
The printer is prepared
The printer is prepared
The printer is prepared
Carefully place the PSU on the heatbed. Use a piece of cloth as protection.
Well done, the printer is prepared.
Place the printer aside for some time, we will need it later on.
Now, let's go to the next chapter: 3. Assembling the enclosure
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