4. Top and doors assembly
Assembly time : 1h30
Required kit elements :
- Prusa-box top
- 1x cross-beam
- 4x uprights
- bag of M4 screws and M4 nuts
- bag of M3 screws and M3 nuts
- 10x 3mm hinge
Printed parts :
- 4x corner pieces
- 1x cable guides (4 parts)
- 1x logo plate (in 2 parts)
- 1x filament guides (in 2 parts)
- 4 foot braces (depending on the kind of feet you have chosen)
- 3 parts for the side filtration module
- 1 piece for the cooling of the printer’s mainboard
- 10 hinges (2 parts for each hinge)
- 2 top door handles
- 10 door locks (2 parts for each lock)
Step 1 Mouting the top cross-beam
On this step we need :
Prusa-box top
Crossbeam
Position the top cross-beam as shown and fix the cross-beam to the roof with 5 M4 screws and 5 M4 nuts (screw heads on the outside)
Step 2 Preparation of corner pieces
Take the 4 top corners: all parts are different.
Insert M4 nut in each of the indicated slots
Don’t forget to insert M4 nut on top slot (top back corners only)
If you will install the LED option, insert the square nuts on the front corner pieces (2 nuts per corner piece)
Step 3 Fitting the corner pieces (1/3)

Please note: each corner piece is different and has its own location.
Front right corner
Front left corner
Back right corner
Back left corner
Step 4 Fitting of corner pieces (2/3)
Slide the front corner pieces into place.
A little pressure may be required.
Printed part and steel frame must be align.
Fix the front left corner with 4 M4 screws.
Fix the front right corner with 4 M4 screws.
Step 5 Fitting of corner pieces (3/3)
Slide the back corner pieces into place.
Fix the back left corner with 4 M4 screws.
Fix the back right corner with 4 M4 screws.
Step 6 Placement of the logo plate
Logo plate: left part
Logo plate: right part
Fix the plate to the roof of the printer-box with 6 M3x6mm screws. There is no need for nuts: this part of the printer-box will not be subject to any pressure.
Double check that the logo plate it on the right position: middle thicker part have to be closed to holes for top door hinges.
Step 7 Installing the filament guide
Place the 2 parts of the filament guide in the indicated location.
Fix the filament guide to the top of the printer-box with 4 M3x6mm screws (screw heads on the outside). There is no need for nuts: this part of the printer-box will not be subject to any pressure.
Step 8 Installing uprights (1/3)
Left back uprights
Right back uprights
Turn the top of the printer-box over (outer side against the table).
Slide left rear upright from the top with printed corners inserted on the upright.
Then you can slide down the upright.
You succed if left and right hooks are in place and there is no gap on the top.
If not, go back to (yellow arrow).
Fix left rear upright twith 4 M4 screws.
Fix right rear upright twith 4 M4 screws.
Depending on how the the corner pieces were printed, you may have to force a little.
Step 9 Installing uprights (2/3)
Step 10 Installing uprights (3/3)
Front right upright
Front left upright
Position right upright in front of corner piece as shown.
Slide right front upright so that it clips to the top of the printer-box.
Fix right front upright with 3 M4 screws.
Fix left front upright with 3 M4 screws.
Step 11 Fitting the fixed hinges (1/3)
Start by sorting the fixed hinges:
Hinges type A
Hinges type B
Insert M3 square nuts in all hinges
Insert 3mm pins in all hinges.
Hinges should be inserted as showned.
Step 12 Fitting the back left fixed hinges (2/3)
Fix hinges type B for the left door and, on the inside, the vertical cable mounts using 4 M3x12 screws.
Step 13 Fitting the other fixed hinges (3/3)
Fix hinges type A for the front, top, back and right door.
Fix the 2 rear fixed hinges (the different ones) to the left rear upright.
Fix each fixed hinge with 2 M3x6 screws by screwing from the inside.
Do not forget the 2 fixed hinges on the top of the printer-box.
You can already install the webcam rail on the front-right upright part.
Step 14 Preparation of the Plexiglas sheets
Kit includes 5 plexiglass plates :
2pcs biggest size for side doors
2pcs middle size for front and back doors
1pc small size for top door
Remove the protective films from the Plexiglas doors.
Step 15 Preparation of doors printed parts and doors handles
Hinge type B
Hinge type A
Top door handle
Lock
Insert M3 suqarre nut into each slot.
Step 16 Mounting the left door
Take a side door.
Place the angled corner as showned.
Fix 2 type A hinge with 4 M3x6 screws. Double check to fix it with screw head against table.
Caution: do not overtighten the screws to avoid splitting the Plexiglas.
Fix lock with 3 M3x12 screws. Double check to fix it with screw head against table.
Tighten the bolts of the locks sufficiently so that there is a slight resistance but not too much so that the lock is not too hard to open.
Step 17 All doors
All asembled doors:
Left door, check hinge and lock side regarding
angled corner position.
Top door, check hinge and handle side regarding
asymetrical distance.
Right door, check hinge and lock side regarding
angled corner position.
Front and back doors are the same, check hinge and lock side regarding
asymetrical distance.