WARNING: Make sure to protect the electronics against electrostatic discharge (ESD). Keep the Einsy board in the antistatic bag until it is needed for the assembly.
⬢Insert M3nS nut all the way in. You can use the small screw driver to push it down if needed.
⬢Check the proper alignment with the Allen key.
If this nut is loose in the slot then it can easily fall out and then possibly short some electrical contacts on the Einsy board whenever you open your Einsy case.
⬢Wrap the sleeve around the X-axis motor cable. The sleeve is shorter, than the motor cable.
⬢Secure the sleeve using a zip tie, you have to tighten the zip tie firmly and it is only a temporary fix until the Einsy case is assembled, but you can leave the zip tie in place afterwards
⬢EINSY RAMBo motherboard (1x) keep the silver label for later
New kit units are shipped with a silver label already affixed to the frame or on the rear plate. Check the back of the frame to see if the label is already attached.
Note that the anti-static bag will be opened upon arrival. Each board is taken out and tested before shipping.
⬢In the following steps, we will manage all the cables on the printer. We've tested several ways and this seems to be the most efficient.
In the upcoming steps, please tighten all zip ties carefully as you might pinch/break the cables.
⬢Turn the printer on the PSU side, then guide the cables go below the extrusion.
⬢Start with the Z-axis motor (right).
⬢Slide the zip tie through the circular holes in the frame to create a loop.
⬢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.
⬢Continue upwards and using another zip tie create the next loop.
⬢Insert Z-axis cable and all cables from the PSU. Make sure all the cables are below smooth rods and not interfering with the Y-carriage.
⬢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.
⬢Continue upwards 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.
⬢Push the cables gently in the zip tie, before you tighten the zip tie, read the next point.
This time be very careful! Tighten the zip tie slightly or you will damage the LCD cables! The zip tie should be snug to hold the wires in place. Over tightening it can cut the wires!
⬢That's it! Cables are organised, let's connect them to the EINSY board. Now you can turn the printer back on its feet.
IMPORTANT: it is CRUCIAL to connect the PSU and HB cables in correct order to the EINSY board. POSITIVE WIRE must be connected to POSITIVE SLOT. There are TWO VERSIONS of the cables with different coloring system:
⬢VersionI: either both wires on each pair are black, POSITIVE WIRE is marked with a RED LINE
⬢Version II: on each pair, there is a red and black wire. POSITIVE WIRE is WHOLE RED.
⬢Connect wires from PSU and HEATBED to the EINSY board in the following order (red arrows indicate positive slot):
⬢The first cable from the PSU (A+|A-).
⬢The second cable from the PSU (B+|B-).
⬢Cable from the heatbed (C+|C-).
Both cables (two pairs) from the PSU are the same, their order doesn't matter, just ensure correct polarity.
Please make sure you have connected POSITIVE and NEGATIVE polarity as described in the previous step! Always place the wire with POSITIVE polarity in the positive slot on EINSY. See the pictures for red arrows.
Make sure the bent part of the cable connector is always facing up (away from the board)!!! The same setup was used during the PSU assembly.
Check once more following setup:
⬢Take the first cable from the PSU and connect the pair of wires to the EINSY board. Use the bundled Philips screwdriver. TIGHTEN the screw firmly!
⬢Take the second cable from the PSU and connect the pair of wires to the EINSY board.
⬢The last pair of wires is from the heatbed. Connect them to the last two slots.
Please note that not following these steps correctly could possibly void the warranty on the printer if any damage occurs! Please take your time and double-check the correct connections and tighten the screws.
⬢Separate the nylon filament slightly from the rest of the cables. No need to unwrap the sleeve.
⬢Slide the NYLON filament in the hole.
If the nylon is hidden inside the textile sleeve, use the technique in the previous step to reach it.
⬢Make sure the filament isn't pushing into the X-axis motor cable, 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.
⬢Use the Extruder-cable-clip and two M3x10 screws to fix the cable bundle in place
Don't use excessive force during the assembly, or you might damage the spool holder locking system.
⬢Place all three parts in front of you. Note both "arms" are identical. Make sure the C shaped part, which will snap on the printer's frame is facing towards you.
⬢Take the "arm" on the right side, insert it gently in the main part and start to rotate clockwise (away from you). It should take about half the turn to lock the part in place.
⬢Take the "arm" on the left side, insert it gently in the main part and start to rotate anticlockwise (towards you). It should take about half the turn to lock the part in place.
The assembly requires a very small force (torque). If you experience issues, check first the locking mechanism for obstacles.
⬢To properly mount the spool holder, let the "tooth" sit on the frame (in the middle) and then press in the direction of the arrows (push backwards, while slightly pressing downwards).
Don't try to assemble spool holder by pushing it only from the top. More force is needed and you may damage the holder.
New kit units are shipped with a silver label already affixed to the frame or the rear Y-axis plate. If you already have a label affixed by us, skip this step.
WARNING: This step is important, don't skip it! The silver label includes the printer's serial number and other important information. Its presence is necessary for any warranty claim. In case the label is already on the frame, please skip this step.
The silver label with the serial number is placed on the bag with EINSY RAMBo electronics, which you prepared at the beginning of this chapter.
⬢Rotate the printer, so that the rear side with the PSU and electronics faces towards you.
⬢Locate the part of the frame above the PSU, if possible clean this area to remove any dirt or grease.
⬢Carefully peel off the protective layer and attach the label onto the frame. Ensure there is no air trapped below the label.
⬢Congratulations, you've just assembled the Original Prusa i3 MK3S+ 3D printer!
⬢You're almost there... Just finish the chapter 9.Preflight check.
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