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3DUpFitters Prusa i3 Enclosure Kit, Installation Manual, Page: 26 / 33

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3DUpFitters Prusa i3 Enclosure Kit Installation Manual Download Page 26

If the top seems to overhang the front or back incorrectly, try replacing the front 
and back panels if they are of di

ff

erent thicknesses. 

The dry box construction is slightly di

ff

erent in that it uses special corner connectors 

on the bottom corners. These are distinguished by the words “dry box” on the side 
below.

Copyright 2023 3DUPfitters LLC

26

Summary of Contents for Prusa i3 Enclosure Kit

Page 1: ...Prusa i3 MK2 3 3S with MMU2 2S Enclosure Kit Installation Manual 2 6 December 2022 Copyright 2023 3DUP fi tters LLC 1 ...

Page 2: ...This page was intentionally left blank Copyright 2023 3DUP fi tters LLC 2 ...

Page 3: ... material unit installed known as the MMU2S for shorthand Is your Prusa Customized If your printer is stock then no customization is needed If you ve modi fi ed your printer in such a way to change its outside dimensions like stuck it on top of a rock then you ll need to contact 3DUP fi tters for advice before proceeding If you have customized the printer to change the outside dimensions you shoul...

Page 4: ...cratches Follow the directions below to remove the cover and discover the beautiful plastic underneath But if in some rare instance the plastic arrives with a crack or scratch either from manufacturing or shipping we ll of course replace it for free To remove the covering from an acrylic panel lay the panel fl at on a table Then peel up a corner of the covering and CAREFULLY and SLOWLY pull horizo...

Page 5: ...will vary depending on the depth of the particular shipment of fans we happen to get that month They won t be hard to spot since they ll be the longest thing in the bags Finally and we can t stress this enough D O N T O V E R T I G H T E N T H E S C R E W S D O N T U S E A P O W E R S C R E W D R I V E R Leave the screws a little loose until the end adjustment phase You ll be hand tightening until...

Page 6: ...once the covering is removed and rarely a panel can be mislabeled This chart will help you keep them straight Note that the panels are shown as they appear if you are located on their corresponding sides i e the right side is pictured as if you were standing on the right side of the enclosure etc PANEL PICTURE HEIGHT WIDTH FRONT 20 22 22 RIGHT 20 23 LEFT 20 23 PANEL Copyright 2023 3DUP fi tters LL...

Page 7: ...BACK 20 22 22 TOP 23 33 22 22 PICTURE HEIGHT WIDTH PANEL Copyright 2023 3DUP fi tters LLC 7 ...

Page 8: ...fi nd them Please read the Blog article Printing Tips for 3D Up fi tters Parts for detailed printing tips Note that the solid grommets are 3D printed in TPU but we re including those in every kit because many people don t have access to TPU Care and Feeding of Acrylic Enclosures Copyright 2023 3DUP fi tters LLC 8 Part Quantity L Corner Connector 4 R Corner Connector 4 Mid Panel Connector 8 Medium ...

Page 9: ...ends and then throughout the panels and will make the acrylic hazy The second rule is NEVER USE MICROFIBER CLOTHS These will create more and more scratches in your acrylic For most cases using a soft old t shirt made of jersey with water will be enough to clean your enclosure If that doesn t do the trick you can try a commercial acrylic clean like Brillianize Copyright 2023 3DUP fi tters LLC 9 ...

Page 10: ...ctors are identical i e Bottom Right is the same as Top Left In all cases the surface of the connector with the cutout pattern faces front or back Note that the two pictures below show the inside of the front panel If the holes don t line up check https www 3dup fi tters com blogs news how to attach corner connectors R Connector From Inside Top Left L Top Right R Bottom Left Labeled R Bottom Right...

Page 11: ...to the latch mounts Hand tighten and make sure they re secure but do not over tighten or they may strip The magnetic latch can be later adjusted front to back to ensure the door is fl ush with the door frame Each latch mount is attached via three screws Two M4 12mm cap heads attach the latch mount to the side while a 30mm cap head secures the latch mount to the door frame Attach the hinges to the ...

Page 12: ...etic latch to hold the left side of the door and then place the front on its side so the hinges are at the top and the latch at the bottom Loosen the screws and adjust the position of the hinges so that there s an even gap on all sides of the door The door should open and close freely When the front is fi nished it will look like the image to the right 2 Attach Left Side The left panel is distingu...

Page 13: ...Copyright 2023 3DUP fi tters LLC 13 ...

Page 14: ... a plastic disk depending on how much air fl ow you want Note that the fan either by itself or paired with a fi lter or vent is necessary to draw air over the power supply This both heats the air inside the enclosure AND cools down the power supply extending its life Only use the circular disk not included to cover up the hole if you have moved the power supply outside the enclosure or simply don ...

Page 15: ... fan the power supply is still cooler because one side is exposed to colder air The right side panel is a little tricky to con fi gure because Prusa has used two di ff erent power supply sizes The default layout is for the silver power supply they ve used for years Just make sure the cutout in the vent is on the bottom half to fi t around the small bump at the bottom 1 3 of the supply If however y...

Page 16: ...cross beam installation If you have a dry box top there is an additional M4 20mm hex cap screw to attach to each top corner connectors circled in red below These will later be used to hold the dropbox in place but for now locate the screws and screw them in from the bottom of the corner connectors on top Copyright 2023 3DUP fi tters LLC 16 ...

Page 17: ...eo https www 3dup fi tters com blogs news acrylic Be careful as the area around the fi lament slit will crack if handled roughly The top has a front back and left to right This is because it overhangs the front which is twice as thick Place the top on the assembled enclosure to make sure but don t attach it yet as you still have to connect the spool holders and fi lament bu ff er If there s an ove...

Page 18: ...upport pieces to print in fi le prusa_mmu_enclosure_9 3mf These are attached to the top using 16mm M4 screws on the holes near the front of the enclosure top The center spool holder rolls are another print in fi le prusa_mmu_enclosure_10 3mf These are attached to the support pieces using the long metal rods supplied with the MMU2 kit s table mounted spool holders Copyright 2023 3DUP fi tters LLC 1...

Page 19: ...The fi nal piece to print is in fi le prusa_mmu_enclosure_4 3mf Copyright 2023 3DUP fi tters LLC 19 ...

Page 20: ...multi material unit to the fi lament bu ff er We can t provide a complete list of instructions since the bu ff er is a Prusa product with a multi material unit The PTFE tubes are inserted at the back of the fi lament bu ff er through the holes at the back of the enclosure and into the MMU2 unit itself Copyright 2023 3DUP fi tters LLC 20 ...

Page 21: ...Copyright 2023 3DUP fi tters LLC 21 ...

Page 22: ...ou did not purchase the dry box you can leave this center hole un fi lled or use an M4 12mm hex cap screw from the outside Note that no nut is needed since the center corner connector hole has been tapped for M4 screws The other two holes in the top use M4 12mm hex cap screws and nuts to attach securely to the top corner connectors Copyright 2023 3DUP fi tters LLC 22 ...

Page 23: ...se parts are sturdy but they re still all made of plastic Repeat the process going around the enclosure looking to make sure all panels are fl ush with each other Once the gaps are sealed you can then position the enclosure The biggest thing with the power supply is to get the vent in the right place If you are using the silver power supply there isn t much tolerance in the o ff on switch and powe...

Page 24: ...ion USB power supply strip available just about anywhere You can power both the printer and accessories from the same strip AND turn everything o ff and on from outside the enclosure 8 Thermometer The optional thermometer will let you know approximately what temperature it is inside the enclosure It attaches to the left side of the door piece using the same hole as the top most corner connector as...

Page 25: ...ined with desiccant not included prevents the fi lament from absorbing water Its construction is similar to that of the standard enclosure with the thickness of the sides matching precisely the thickness of the sides of the enclosure If you ve purchased an all 6mm enclosure then the sides of the dry box will be all 6mm If the sides of the main enclosure are 6mm in front and 3mm on the sides then t...

Page 26: ...he front and back panels if they are of di ff erent thicknesses The dry box construction is slightly di ff erent in that it uses special corner connectors on the bottom corners These are distinguished by the words dry box on the side below Copyright 2023 3DUP fi tters LLC 26 ...

Page 27: ...The special dry box connectors are used on the bottom corners as shown circled in red Copyright 2023 3DUP fi tters LLC 27 ...

Page 28: ... of the dry box has a unique grommet holder for the PTFE tubes that run from the detangled into the MMU2 unit through the back of the enclosure That way you can remove the dry box without disconnecting anything The grommet holder fi ts into the two mid corner connectors via the included M4 14mm hex cap screws Copyright 2023 3DUP fi tters LLC 28 ...

Page 29: ... it can be vented to the outside or run through an air fi lter People often ask us if the enclosures are airtight and have a bottom If your primary concern is air quality then being airtight doesn t buy you anything since the particles will fl oat out when you open the door By maintaining a negative air pressure the particles are reliably kept away from human operators which means having openings ...

Page 30: ... More experienced 3D printer owners though for whom a clogged nozzle is a known risk might want to run higher temperatures for less chance of warping ABS parts or printing nylon In those cases you can turn o ff the fans or even print one of the vent covers and not vent at all We do the latter on our internal print farm on a couple of machines where the temperature when printing ABS gets as high as...

Page 31: ...and the harmful particles fl oating into the vent or fi lter 3D Printer Design Matters The other part of the equation is the printer design Those printers where the hot end is at the top of the enclosure make it easier to achieve higher temperatures because the hot air rises to the top and the vertical hot end position is fi xed Those printers with the hot ends at the bottom will always have more ...

Page 32: ... tell if a printing problem is temperature related or not 12 Tips and Tricks On some surfaces the enclosure can slide around a bit In those cases try using double sided on the corners to hold it in place Another issue is that the magnets in the door are strong You can either use two hands to open the door one holding the enclosure and another to open the door or reduce the e ff ects of the magnet ...

Page 33: ...signed to fi t the MK3 S by default If you own an older model MK2 S you will notice the power supply duct opening is at the wrong height This is because the MK2 didn t come with feet Luckily you can make it line up just right with a little extra e ff ort Start with the 30mm Prusa foot variation on Thingiverse You can add 2mm to the right using your favorite STL editor Then purchase these bumpers t...

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