5. Y-axis upgrade

Relevant for:

MK3S+

Last updated 2 years ago

Difficulty

Moderate

Steps

Available languages

Step 1 Tools necessary for this chapter

⬢Needle-nose pliers for cutting zip ties

⬢2.5 mm 六角レンチ

⬢2mm 六角レンチ

Step 2 New LCD-knob installation (optional)

This step is optional. It depends on your choice whether you want to replace the LCD-knob with a new design.

⬢以下のステップに向けて、下記の部品を用意してください。

⬢New MK3S+ LCD-knob (1x)

⬢Pull out the old version of the knob and remove it from the printer.

⬢Replace it with the new LCD-knob.

Knob mounting orientation doesn't matter.

Note that the knob for MK3S+ and MINI+ have a similar design, but different dimensions and are not compatible.

Step 3 Removing the heatbed

⬢By rotating BOTH threaded rods at the same time, move the Z-axis to 3/4 of its height.

⬢2mmの六角レンチを使って、ヒートベッド上の全てのネジを緩めて取り外します。

⬢Remove the heatbed from the Y-carriage and put it next to the printer on the clean surface.

Keep the screws and spacers in a safe place (a box). You will need them for the reassembly!!!

Step 4 Bearing clips assembly - parts preparation

⬢以下のステップに向けて、下記の部品を用意してください。

⬢Bearing clip (3x)

⬢M3nN nut (6x)

⬢M3x12 screw (6x)

Step 5 Bearing clips assembly

⬢Rotate the printer carefully on the side with the PSU. Turn the rear side of the printer towards you. See the picture.

⬢Put the heatbed with the top surface up on the electronics case. Make sure it is stable.

⬢Select one U-bolt in the upper row and remove two M3nN nuts.

⬢Once the nuts are removed, grab the U-bolt and remove it by pulling on the opposite side.

The package includes new nyloc nuts (M3nN) and it is recommended to use them instead of the old ones. The U-bolts will be also replaced.

Step 6 Bearing clips assembly

⬢Make sure the bearing is positioned at the center of the cutout. If not, adjust it accordingly. Do not rotate with the bearing!

⬢Place the bearing clip over the bearing.

⬢Align the holes in the clip with the holes in the Y-carriage and insert two M3x12 screws.

Step 7 Bearing clips assembly

⬢Turn the printer carefully around to get access to the other side of the Y-carriage. Hold both screw heads in place using your fingers and put on the nyloc nuts.

⬢2.5 mm六角レンチとラジオペンチを使用して、両方のナットを締めます。

⬢Repeat these steps for the remaining two linear bearings. Continue with the second upper bearing and then the lower one.

Step 8 Mounting the heatbed (part 1)

⬢Hold the heatbead and carefully put the printer back on its "feet".

⬢Push the Y-carriage to the front and place the Heatbed behind.

⬢Locate a hole in the centre of the Y-carriage.

⬢Place one spacer on the top of the hole.

The exact position of the spacer will be adjusted in the next step.

Step 9 Mounting the heatbed (part 2)

⬢Push the Allen key through the middle hole on the Heatbed and place it above the spacer. Use the Allen key to align all parts.

⬢After the alignment insert the M3x12b screw instead.

⬢Tighten the screw just slightly.

Step 10 Mounting the heatbed (part 3)

⬢Move to the right side of the heatbed.

⬢Place another spacer with the pliers.

⬢Push the pliers between the heatbed and the Y-carriage.

⬢Use the Allen key to align the spacer.

⬢When aligned, insert the screw instead and tighten it slightly.

Step 11 Mounting the heatbed (part 4)

⬢Using pliers, insert spacers and screw them into the remaining holes. DON'T fully tighten the screws.

⬢After all screws are in place, tighten them in the following order:

⬢Center screw

⬢First four screws (edges)

⬢Last four screws (corners)

Step 12 New Y-rod holders installation - parts preparation

⬢For the following steps please prepare:

⬢Y-rod-holder (4x)

⬢M3x10 screw (4x)

⬢M3nS nut (12x)

There are more M3x10 screws needed, we will reuse those in current Y-rod-holders.

Step 13 Preparing Y-rod-holder

⬢Take one Y-rod-holder and insert two M3nS nuts.

⬢Make sure you've pressed the nuts all the way in. You can use pliers, BUT be careful, you can damage the printed part.

もしナットが入らなくても、力をかけて押し込まないようにご注意ください。この場合、まずはナットが入る穴の中に、障害となっているものがないかどうかを確認してください。

⬢Insert one M3nS nut from the side of the Y-rod-holder.

⬢ナットの位置を 2mm の六角レンチを使って調整します。

⬢Repeat this step for the remaining Y-rod-holders.

Step 14 Removing the Y-rod-holders (rear side)

⬢Move the Y-carriage all the way from you.

⬢Start with the Y-rod-holders on the rear plate. Cut the zip tie on the left Y-rod-holder.

⬢Release the two screws holding the Y-rod-holder. Do not throw the screws away, you will need them in the upcoming step.

⬢Lift the smooth rod up, 1-2 cm (0.39 - 0.79 inch).

⬢Remove the Y-rod-holder from the printer.

⬢Push the new Y-rod-holder onto the rod. Align the front surface of the plastic part with the flat surface of the rod.

⬢Check the correct position of the Y-rod-holder. The screw hole must be facing up and towards the "inner" side of the Y-carriage (see the picture).

Step 15 New Y-rod holders installation (rear side)

⬢Mount both Y-rod-holder to the rear plate by two M3x10 screws. Do not tighten the screws completely, the Y-rod-holders must be loose. We will tighten them fully later on.

⬢Insert the M3x10 screw into the hole in the Y-rod-holder and tighten it.

⬢Use the same procedure for the second (right) Y-rod-holder.

⬢Compare the look of the new Y-rod-holders assembly with the picture.

Step 16 Removing the Y-rod-holders (front side)

⬢Turn the printer so that the LCD is facing towards you.

⬢Move the Y-carriage all the way from you and cut two zip ties on the Y-rod-holders with the needle-nose pliers.

⬢Release four screws holding the Y-rod-holders. Do not throw away the screws, you will need them in the following step.

⬢Lift the smooth rod up, 1-2 cm (0.39 - 0.79 inch). If you feel resistance, stop lifting! Otherwise, you can damage the Y-rod-holder on the other end of the rod.

⬢Remove one Y-rod-holder from the printer.

⬢Push the new Y-rod-holder on the rod. Align the front surface of the plastic part with the flat surface of the rod.

⬢Check the correct position of the Y-rod-holder. The screw hole must be facing up and on the "inner" side of the Y-carriage (see the picture).

⬢Repeat these steps for the second Y-rod-holder.

Step 17 New Y-rod holders installation (front side)

⬢Mount both Y-rod-holders to the front plate by four M3x10 screws. Insert and tighten two screws on each holder equally, but not completely. We will tighten them fully later on.

⬢Insert the M3x10 screw into the hole in each front holder and tighten it.