⬢For this chapter, please prepare:
⬢2.5mm Allen key
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- Original Prusa Enclosure assembly
- 3. Assembling the enclosure
3. Assembling the enclosure
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- Original Prusa Enclosure assembly
- 1. Introduction
- 2A. Preparing the printer (MK4/S & MK3.9/S)
- 2B. Preparing the printer (MK3.5 Black PSU)
- 2C. Preparing the printer (MK3S+ Black PSU)
- 2D. Preparing the printer (MK3S+ Silver PSU)
- 3. Assembling the enclosure
- 1. Tools necessary for this chapter
- 2. LONG vs SHORT profile
- 3. Assembling the base frame: parts preparation
- 4. Assembling the base frame
- 5. Assembling the base frame
- 6. Assembling the feet: parts preparation
- 7. Foam pads installation
- 8. Assembling the feet
- 9. Attaching the anti-vibration pads
- 10. Assembling the bottom panel: parts preparation
- 11. Assembling the bottom panel
- 12. Securing the bottom panel
- 13. Installing the anti-slip dampers: parts preparation
- 14. Preparing the anti-slip dampers
- 15. Mounting the anti-slip dampers
- 16. Assembling the supports: parts preparation
- 17. Assembling the supports
- 18. Assembling the supports
- 19. Assembling the top frame: parts preparation
- 20. Assembling the top frame
- 21. Assembling the top frame
- 22. Assembling the top panel: parts preparation
- 23. Preparing the top panel
- 24. Assembling the top panel
- 25. Installing the PSU-locks: parts preparation
- 26. Installing the PSU-locks
- 27. Mounting the PSU-locks
- 28. Assembling the hinges: parts preparation
- 29. Assembling the hinges
- 30. Mounting the hinges
- 31. Mounting the hinges
- 32. Assembling the back panel: parts preparation
- 33. Assembling the back panel
- 34. Assembling the back panel
- 35. Assembling the side panel (right): parts preparation
- 36. Assembling the side panel (right):
- 37. Assembling the side panel (left): parts preparation
- 38. Assembling the side panel (left)
- 39. Haribo time!
- 40. Well done!
- 41. Select printer
- 4A. Installing the printer (MK4/S & MK3.9/S)
- 4B. Installing the printer (MK3.5 Black PSU)
- 4C. Installing the printer (MK3S+ Black PSU)
- 5. Fire Suppression System (add-on)
- 4D. Installing the printer (MK3S+ Silver PSU)
- 6. Hinged Lid (add-on)
- 6A. Hinged Lid with MMU3
- 6B. Hinged lid with MMU2S
- 7. Advanced filtration system (add-on)
- 8. Mechanical lock (add-on)
- 9. Quick release PSU cable - MK3S+ Black PSU (add-on)
- 10. Quick release PSU cable - MK4/3.9 Black PSU (add-on)
- 11. White LED strip (add-on)
- Manual changelog Enclosure
3. Assembling the enclosure
Relevant for:
Last updated 16 days ago Difficulty
Very easy Steps
41 Available languages
NOTE: There are two types of sheet metal profiles in your kit package. Their only difference is the length. Always compare profiles with each other! See the picture.
⬢Long profile - 4 pcs in your kit
⬢Short profile - 8 pcs in your kit
Handle profiles very carefully! The profiles have sharp edges.
⬢For the following steps, please prepare:
⬢Long profile (2x)
⬢Short profile (2x)
To be sure, compare the lengths of the profiles.
⬢M4x5r screw (8x)
⬢Place the profiles on the surface like in the picture:
⬢Short profile
⬢Long profile
We recommend using a mat under the profiles to protect your work surface from scratches. After joining them, they will need to be placed with the sharp corners down. You can use the original cardboard box, but don't take it apart, it will come in handy in a little while.
⬢Pay attention to the correct position of the logo according to the picture.
⬢Attach both profile to together and align the holes in the joint.
⬢Join both profiles with two M4x5r screws.
⬢Use the SAME procedure with another couple of the long and short profile.
⬢Attach both assembled base parts together like in the picture.
⬢Join them together with four M4x5r screws.
⬢For the following steps, please prepare:
⬢Feet-bracket (4x)
⬢M3x12 screw (8x)
⬢M3n nut (8x)
⬢Foam block or foam pads set (2x)
⬢Insert two M3n nuts into each feet-bracket.
⬢Place the base assembly on top of the original cardboard box (Profiles & Steel sheets), with at least one corner extending over the box.
If you cannot use a cardboard box, place the assembly on the edge of the surface. Don't forget to use a pad to protect the surface from scratches.
⬢Take the feet-bracket and orient it to the extending corner, as in the picture. See the orientation of the part.
⬢In this orientation, place the feet-bracket under the joint of the profiles and align the holes of the parts.
⬢Secure all parts with two M3x12 screws.
⬢Proceed the same with the remaining feet-brackets.
⬢Turn the frame so that the feet-brackets are facing up.
⬢Gently push 8 pads out of the blocks.
Keep the remaining four pads as a spare.
⬢Peel the protective film from all pads. Be careful, there is glue (adhesive) applied on the pad.
⬢Glue two anti-vibration pads into each foot-bracket.
⬢Turn the frame on its feet and place it aside for a while.
⬢For the following steps, please prepare:
⬢Bottom panel (1x)
⬢M3x4 screw (16x)
⬢Paper box (1x) at least 15 x 15 x 8 cm. We will use it as another temporary pad.
You can use any of the Prusament spool.
⬢Place the bottom panel on the cardboard box. Place the box so that it is in the center of the panel.
Correct panel and frame orientation is crucial! Follow the correct procedure and look carefully at the orientation of the parts in the pictures.
⬢Note the "V" cutout in the front and the "L" cutout on the right. Maintain this orientation of the bottom panel.
⬢Take the base frame assembly and place it on the bottom panel. The "V" cutout in the panel must be facing against the cutout on the base frame.
⬢Secure the bottom panel near front and rear corner by two M3x4 screws.
⬢Insert the remaining fourteen M3x4 screws into the other holes.
The four holes marked "X" in the picture must remain empty.
⬢For the following steps, please prepare:
⬢Anti-slip damper (4x)
⬢Damper-insert (4x)
⬢M3x20 screw (4x)
⬢Push the damper-insert into the anti-slip damper. No matter which side, the anti-slip damper is symmetrical.
⬢Turn the assembly on its feet and orient the base with the front center cutout facing to the front.
Remember that this cutout will mark the front of the enclosure during assembly.
⬢Locate the two threaded holes in the front and two in the back on the bottom panel. We will use them in the next step.
Avoid using the holes marked "X" in the picture.
⬢Place the anti-slip damper on the threaded hole.
⬢Insert the M3x20 screw into the anti-slip damper and tighten it.
⬢Proceed the same for other anti-slip dampers.
To be sure, check if you are using the correct holes!
⬢For the following steps, please prepare:
⬢Short profile (4x)
To be sure, compare the lengths of the profiles.
⬢M4x5r screw (16x)
⬢Orient the assembly like in the picture, see the front cutout.
BE VERY CAREFUL! Profiles have sharp edges. A falling profile can cause you injury or damage the work surface.
⬢Attach the short profile to the right corner. Make sure, there is no PRUSA logo on the lower side of the profile.
Take a closer look at the joint - one side overlaps the bottom profile and the other is overlapped by another bottom profile.
⬢Hold the profile with your hand to maintain the position and secure it with one M4x5r screw.
⬢Insert and tighten remaining three M4x5r screws.
⬢Attach the other three profiles in the same way.
⬢Check that all profiles have the PRUSA logo at the top.
⬢For the following steps, please prepare:
⬢Long profile (2x)
⬢Short profile (2x)
To be sure, compare the lengths of the profiles.
⬢M4x5r screw (24x)
⬢Orient the assembly with the front side facing you.
BE VERY CAREFUL! Profiles have sharp edges. A falling profile can cause you injury or damage the work surface.
⬢Attach the short profile on the supports and secure it with two M4x5r on each end.
⬢From now, the PRUSA logo must be on the right side on every top profile.
⬢From the right side of the assembly, attach the long profile on the supports and secure them with two M4x5r screws on each end. Maintain the PRUSA logo position.
⬢Secure the joint of both top profiles with two M4x5r screws.
⬢Turn the assembly with the rear side facing you, see the front cutout.
BE VERY CAREFUL! Profiles have sharp edges. A falling profile can cause you injury or damage the work surface.
⬢From the rear side, attach the short profile on the supports and secure them with two M4x5r screws on each end. Maintain the PRUSA logo position.
⬢Secure the joint of the profiles from the top with two M4x5r screws.
⬢Attach the remaining long profile on the supports and secure it with two M4x5r screws on each end. Maintain the PRUSA logo position.
⬢Secure each joint of the profile from the top with two M4x5r screws.
⬢For the following steps, please prepare:
⬢Top panel (1x)
⬢M3x4 screw (16x)
For the next step, it is essential to insert the top panel inside the enclosure in the correct orientation. Pay close attention to the pictures and instructions:
⬢There are protrusions on one side of the top panel - during assembly, protrusions must be facing down (they work as zip tie holders).
⬢The top panel is not symmetrical - notice the two holes - when mounting the holes must be on the back of the enclosure.
⬢Grasp the top panel with the protrusions pointing down and the marked holes on the back of the panel.
⬢Maintain this position for the next step.
⬢From the front side, insert the top panel INSIDE the enclosure. Mind the correct orientation. See the cutouts on the panel.
⬢The perforations on the panel must be facing down (inside the enclosure).
⬢Lift the top panel all the way up and attach it to the top frame. Align the holes and secure the panel with three M3x4 screws.
⬢Insert the remaining M3x4 screws and completely tighten all 16 screws.
There are holes marked "X" in the picture, leave them empty.
⬢For the following steps, please prepare:
⬢PSU-handle (1x)
⬢PSU-lock (4x)
⬢M3x8 screws (4x)
We will use the PSU-handle as a tool to attach the PSU-locks in the following steps.
⬢Insert one PSU-lock into the pocket in the PSU-handle.
⬢Orient the enclosure like in the picture. The front side of the enclosure (side with the cutout in the bottom panel) must be on the left.
⬢Focus on the left side - the far corner from you.
⬢From the rear side, insert the M3x8 screw in the bottom frame profile.
⬢Take the PSU-handle with the inserted PSU-lock and attach it on the M3x8 screw from the inside.
⬢Hold the PSU-handle and tighten the M3x8 screw in the same time. Do not overtighten the screw! The PSU-lock must move freely.
⬢Use the same procedure for the remaining PSU-locks. See their positions from inside the enclosure:
⬢On the bottom frame, turn the PSU-locks to the horizontal position.
⬢On the support, turn the PSU-lock to the vertical position.
⬢Do not leave the PSU-handle mounted on the PSU-lock. Take it off, we will need it in the next chapter.
⬢For the following steps, please prepare:
⬢Door-hinge (4x)
⬢Enclosure hinge (4x)
⬢Osicka (Pin) 3x20 (8x)
⬢M3n nut (16x)
⬢M3x8 screw (8x)
⬢Place the enclosure hinge into the door hinge. See the correct orientation of both parts.
Look carefully at the orientation of both parts. Their reverse disassembly is impossible.
⬢Insert the pin from both side of the hinge.
⬢Push two pins all the way into the hinge against a hard surface (e.g. workshop table). The end of the pin must be aligned with the surface of the printed part.
⬢Insert four M3n nuts into each hinge assembly.
⬢Turn the enclosure with the front side facing to you.
⬢Locate two holes on the top of the left support.
⬢From inside, insert two M3x8 screws.
⬢Attach the hinge on the screws and tighten it. Mind the correct orientation of the hinge.
⬢Use the same procedure for the remaining three hinges.
Mind the correct orientation of the hinges.
⬢For the following steps, please prepare:
⬢Back panel (1x)
Do not remove the protective foils from the panel at this time!
⬢Nylon rivet (14x)
⬢Turn the Enclosure so that the rear side is facing towards you.
⬢There are protective foils on both sides of the panel. Peel off both foils.
Handle the panel with care. It can be scratched easily.
⬢Insert the back panel into the enclosure and attach it to the rear frame from inside. Notice how the panel is oriented. Use cutouts for better understanding.
Do not wipe the panel with a paper towel. Use microfiber material.
⬢Near the center of the top profile, align the hole in the back panel and the hole in the top profile. Insert the nylon rivet in the hole.
Do not use the holes marked "X" in the picture!
⬢Push on the nylon rivet to secure the back panel in the frame.
⬢Proceed the same with remaining 13 nylon rivets. Note carefully which holes to use.
⬢For the following steps, please prepare:
⬢Side panel (1x)
Do not remove the protective foils from the panel at this time!
There are two identical side panels in your package. It doesn't matter which one you choose now.
⬢Nylon rivet (16x)
⬢There are protective foils on both sides of the panel. Peel off both foils.
⬢Attach the side panel on the right side of the Enclosure from inside. The side panel is symmetrical, it doesn't matter which side you attach to the frame. It is important that the cutout for the transport handle is at the top.
⬢Secure it with two nylon rivets in the top profile.
Do not use the holes marked "X" in the picture!
⬢Secure the side panel with remaining 14 nylon rivets. Note carefully which holes to use.
Do not wipe the panel with a paper towel. Use microfiber material.
⬢For the following steps, please prepare:
⬢Side panel (1x)
Do not remove the protective foils from the panel at this time!
⬢Nylon rivet (16x)
⬢There are protective foils on both sides of the panel. Peel off both foils.
⬢Attach the side panel on the left side of the Enclosure from inside. The side panel is symmetrical, it doesn't matter which side you attach to the frame. It is important that the cutout for the transport handle is at the top.
⬢Secure it with two nylon rivets in the top profile.
Do not use the holes marked "X" in the picture!
⬢Secure the side panel with remaining 14 nylon rivets. Note carefully which holes to use.
Do not wipe the panel with a paper towel. Use microfiber material.
⬢You have successfully assembled the base of the enclosure. This requires a certain reward!
⬢Eat three gummy bears from the third row. Leave the others!
⬢Good job! You have successfully assembled the base of the enclosure.
⬢Compare your assembly with the picture.
The doors are installed after the printer is secured.
⬢Now follow the chapter depending on which PSU variant you have on your printer:
⬢Original Prusa MK4/S & MK3.9/S: go to the next chapter 4A. Installing the printer (MK4/S & MK3.9/S)
⬢Original Prusa i3 MK3S+ (Black PSU): go to the next chapter 4A. Installing the printer (MK3S+ Black PSU)
⬢Original Prusa i3 MK3S+ (Silver PSU): go to the next chapter 4B. Installing the printer (MK3S+ Silver PSU)
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