EN
  • Čeština
  • Español
  • Italiano
  • Deutsch
  • Polski
  • Français
  • 日本語
Login

4. Electronics assembly

4. Electronics assembly

4. Electronics assembly
Relevant for:
Last updated 3 years ago
4. Electronics assembly
 Difficulty
Moderate
 Steps
8
 Available languages
CSPLESDEITFRJA

Step 1 Wrapping the cable bundle

Wrapping the cable bundle
Wrapping the cable bundle
Before we proceed further, we need to twist the textile sleeve. This will prevent the cables inside to slip out during the print.
Using your fingers gently twist the sleeve (not the cables) and create several wraps.
Twisting the sleeve will effectively shorten its length. In the next steps you might need to twist the sleeve slightly back to lengthen it.

Step 2 Checking the hotend cables

Checking the hotend cables
Checking the hotend cables
Let's make sure the cables from the hotend aren't in contact with the heatbed.
By rotating the threaded rods at the same time, lower manually the X-axis down until the nozzle is almost touching the heatbed.
In case the P.I.N.D.A. sensor touches the bed before the nozzle, move it up slightly.
Ensure there is a gap between the screw in the heatbed and the surface of the hotend cables. The gap should be 2-3 millimetres, the steel sheet will add another 1 mm.
In case the cables are rubbing against the screw, adjust them (push them up in the extruder)
In case you are unable to adjust the cables, unscrew the M3x10 screw and use a spare M3n nut to shorten the length of the thread. Then place the screw back.

Step 3 Connecting the extruder cable bundle

Connecting the extruder cable bundle
Connecting the extruder cable bundle
Connecting the extruder cable bundle
Connecting the extruder cable bundle
Slide the NYLON filament in the hole.
Make sure the filament isn't pushing into the motor cables, which would indicate it is too long and you need to slightly unwrap the sleeve and push the filament back.
Slide the sleeve in the holder at least 3/4 of the holder's height.
Again, ensure the filament isn't pushing the motor cables and if needed slightly unwrap the sleeve and push the filament up.
Depending on the version of your Einsy-base, use either the zip tie or the Extruder-cable-clip and two M3x10 screws to fix the cable bundle in place.

Step 4 Connecting the extruder cable bundle

Connecting the extruder cable bundle
Connecting the extruder cable bundle
Connecting the extruder cable bundle
Connecting the extruder cable bundle
IMPORTANT: Connecting the filament sensor cable properly is crucial. If you don't follow the instructions properly, you will burn the sensor!!!
DON'T CONNECT THE CABLE NOW, wait for the next step!!!
In case you have printed the plug-aligner, gently push it in. The notch should be oriented up, like in the picture.
There are two rows of pins in the connector:
Lower row (for MK3S) use these pins to connect the IR-sensor.
Upper row (for MMU2S) these pins won't be used in this manual.

Step 5 Connecting the extruder cable bundle

Connecting the extruder cable bundle
Connecting the extruder cable bundle
Connecting the extruder cable bundle
Connect the cables from the Extruder:
Extruder heater (red cable pair | Nr. 1)
Hotend fan (black cable | Nr .2)
Print fan (red label | Nr. 3)
IR-sensor with two wires facing to the right (Nr. 4) !!! USE THE LOWER ROW !!!
Extruder motor (yellow label with "E" | Nr. 5)
Extruder thermistor (green/yellow label | Nr. 6)
P.I.N.D.A. probe cable (Nr. 7)

Step 6 Verify all connections once more!

Verify all connections once more!
Verify all connections once more!
Verify all connections once more!
Check your electronics connection with the attached picture.
Make sure once more the Filament sensor cable is connected to all pins! Misalignment might lead to permanently damaging the sensor.

Step 7 Finalizing the Einsy-case

Finalizing the Einsy-case
Finalizing the Einsy-case
Finalizing the Einsy-case
For this step, please prepare:
M3x40 screw (1x)
Close the Einsy-door.
Make sure that no wire is pinched!
Tighten the M3x40 screw.

Step 8 Hooray!

Hooray!
Hooray!
Congratulations, you've just upgraded the Original Prusa i3 MK3S 3D printer!
You're almost there... Just finish the chapter 5. Preflight check
Was this guide helpful?

Comments

Please sign in before adding a comment.
Still have questions?

Still have questions?

If you have a question about something that isn't covered here, check out our additional resources.
And if that doesn't do the trick, you can send an inquiry to [email protected] or through the button below.

Contact us