Prusa Research MINI+ Manual Download

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Table of Contents

Manual changelog MINI+ semi-assembly

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Step 1 - Version history

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Building your MINI+

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Step 1 - Preassembled vs kit version

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Step 2 - Different hardware revisions

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Step 3 - All the required tools are included

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Step 4 - Use labels for reference

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Step 5 - We are here for you!

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Step 6 - XYZ-axes parts preparation

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Step 7 - XYZ-axes parts preparation

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Step 8 - Foam pads - preparation

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Step 9 - Foam pads installation

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Step 10 - Opening the box with the electronics

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Step 11 - Connecting the LCD cable

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Step 12 - Connecting the Y and XZ-axis assembly

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Step 13 - Joining the parts together - preparation

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Step 14 - Protecting the LCD cable

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Step 15 - Joining the parts together - phase 1

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Step 16 - Joining the parts together - phase 2

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Step 17 - Joining the parts together - phase 3

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Step 18 - Aligning the XZ-axis assembly

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Step 19 - Final tightening

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Step 20 - Haribo time!

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Step 21 - LCD parts preparation

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Step 22 - Mounting the LCD

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Step 23 - Connecting the LCD

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Step 24 - Guiding the LCD cable

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Step 25 - Connecting the Y-axis motor

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Step 26 - Connecting the heatbed cable

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Step 27 - Filament sensor (optional)

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Step 28 - Filament sensor installation (optional)

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Step 29 - Connecting the filament sensor (optional)

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Step 30 - Covering the electronics

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Step 31 - Haribo time!

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Step 32 - Spool holder parts preparation

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Step 33 - Spool holder parts preparation

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Step 34 - Assembling the spool holder base(s)

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Step 35 - Adding the spool holder rails

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Step 36 - Adjusting the spool holder width

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Step 37 - Attaching anti-slip pads

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Step 38 - Haribo time!

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Step 39 - Finalising the assembly

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Step 40 - Connecting the PSU

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Step 41 - What is next?

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Summary of Contents for MINI+

Page 1: ...gether phase 2 14 Step 17 Joining the parts together phase 3 14 Step 18 Aligning the XZ axis assembly 15 Step 19 Final tightening 15 Step 20 Haribo time 16 Step 21 LCD parts preparation 16 Step 22 Mounting the LCD 17 Step 23 Connecting the LCD 17 Step 24 Guiding the LCD cable 18 Step 25 Connecting the Y axis motor 18 Step 26 Connecting the heatbed cable 18 Step 27 Filament sensor optional 19 Step ...

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Page 3: ...Original Prusa MINI semi assembled 3 Manual changelog MINI semi assembly ...

Page 4: ...Manual changelog MINI semi assembly 4 Original Prusa MINI semi assembled STEP 1 Version history Versions of the MINI semi assembly manual 11 2020 Initial version 1 05 ...

Page 5: ...Original Prusa MINI semi assembled 5 Building your MINI ...

Page 6: ...u have to assemble the printer using individual parts from the ground up Please continue using the online version available at help prusa3d com MINI kit or you can use the PDF version included on the silver USB drive STEP 2 Different hardware revisions There are more hardware revisions of the XZ axis please check the following photos to select the appropriate assembly procedure The XZ axis has the...

Page 7: ...soldering or wire crimping is required Keep the bag with the Haribo bears closed for now and hide it Unattended bags tend to mysteriously disappear STEP 4 Use labels for reference Most of the labels are scaled 1 1 and can be used to identify the part For identification of the most common screws nuts and PTFE tubes you can also use the enclosed letter which contains the Prusa Cheatsheet on the othe...

Page 8: ... using the following channels In the online version use comments under each step Use our 24 7 live chat at shop prusa3d com Write an email to info prusa3d com STEP 6 XYZ axes parts preparation For the following steps please prepare XZ axis assembly M3x40 screw 1x M3x20 screw 1x M3x12 screw 1x Note the second M3x20 screw in the package will be used later on The list continues in the next step ...

Page 9: ...es parts preparation For the following steps please prepare Y axis assembly Foam block or foam pads set 1x STEP 8 Foam pads preparation Gently push all the pads out of the block You will need five foam pads for the following steps Keep the remaining sixth pad as a spare ...

Page 10: ...r foam pads onto the ends of the frame s aluminium extrusions like in the picture Mind the correct orientation STEP 10 Opening the box with the electronics Make sure that the Z axis is in the upper position If not using your fingers turn the leadscrew and move the Z axis up Release and remove the M3 screw on the box with the electronics Remove the printed cable cover Lift the electronics cover sli...

Page 11: ...LCD cable flat grey Take the LCD cable and push it through the hole in the box with the electronics Make sure the tooth on the connector is facing up Make sure the cable fold in the connector is facing up Connect the LCD connector to the board Mind the orientation of the connector there is a notch on one side see the arrow ...

Page 12: ...cond the second longest will be also used to join parts but using the M3x20 screw The third is located in the top part of the extrusion not visible in the picture The instructions on this one will be provided later on Do not insert any of these screws at this time Wait for the instructions in the following steps The second photo shows the inner side of the XZ assembly which will be in the direct c...

Page 13: ...nder the heatbed structure STEP 14 Protecting the LCD cable WARNING From now on proceed carefully while moving the XZ axis The LCD cable is facing down and might get damaged In order to protect the cable please follow the instructions below Also don t try any other orientation because it will complicate the assembly Carefully lay the XZ axis on its side see the picture and start wrapping the LCD c...

Page 14: ...he centre of the extrusion WARNING Be careful not to pinch the Y axis motor cable between both parts Use the M3x40 screw to connect both parts In case you can t reach the thread of the nut wiggle with the screw a bit inside the plastic base of the printer DON T tighten the screw fully yet STEP 16 Joining the parts together phase 2 Take the second M3nE nut from the left and move it all the way to t...

Page 15: ... using the M3x12 screw tighten it slightly DON T tighten the screw fully yet STEP 18 Aligning the XZ axis assembly In this step you will move the entire XZ axis avoid pushing grinding it against the aluminium extrusion or you might scratch it Leave a small gap while moving the parts Rotate the back of the printer towards you Push the heatbed all the way to the front Hold the Y axis assembly Move t...

Page 16: ...w at the top Second the M3x40 screw on the side Third the M3x20 screw on the side STEP 20 Haribo time Arrange the bears in a similar pattern as in the picture Your package might contain fewer bears In such a case run immediately to the nearest candy store The exact dosage is absolutely critical Eat the upper row leave the others for the next stages I said leave the others ...

Page 17: ...reen keep it on until the end of the assembly to prevent scratches STEP 22 Mounting the LCD First carefully tilt the printer on its side See the picture Place the LCD into the LCD holder There is a notch which fits inside the printed part on the printer The design allows you to tilt the LCD into multiple positions You can do it now or later Use the M3x20 screw to connect both parts together ...

Page 18: ...rd Make sure it is all the way in STEP 24 Guiding the LCD cable Gently insert the cable inside the extrusion Leave some slack outside near the LCD so you can tilt it later on Pro tip to insert the cable in the extrusion carefully bend it into two halves along its length STEP 25 Connecting the Y axis motor Gently pull the Y axis motor cable into the electronics Do not stretch the cable Do not use e...

Page 19: ...idual cables to the board Thermistor H Heatbed heater Gently push the cables inside the box and position the wrap near the top left corner where most of the cables enter the box STEP 27 Filament sensor optional Some of the following steps are marked as optional If you have a printer without the filament sensor please skip to the step Covering the electronics For the following steps please prepare ...

Page 20: ... sensor is fully pushed onto the PTFE tube Now tighten the screw gently to ensure the sensor won t slide from the PTFE tube Use a piece of filament and slide it through the filament sensor to ensure there is no deformation of the tube In case of any resistance release the screw slightly STEP 29 Connecting the filament sensor optional Guide the filament sensor cable behind the extruder cable bundle...

Page 21: ... the second cover on the top and arrange the cables Extruder bundle ensure the textile sleeve is partially in Also it must be tilted away from the printer Heatbed bundle ensure the textile sleeve is partially inside the box Filament sensor cable optional ensure that the textile sleeve wrapped around the cables is partially inside the box Now tighten the second cover Check that no cable is pinched ...

Page 22: ...eparation For the next steps please prepare MINI base spool holder 4x MINI rail spool holder 2x M3x12 screw 4x M3x8 screw 4x M3n nut 4x Bearing 608b 4x The list continues in the next step STEP 33 Spool holder parts preparation For the following steps please prepare Anti vibration pad 4x ...

Page 23: ...arings Insert the M3x12 screw from the top and tighten it Flip the base assembly over and do the same Make sure both bearings can rotate freely If not release the screw s slightly Repeat this step for the second base assembly STEP 35 Adding the spool holder rails Slide both rails in the first base assembly use the grooves Align the rail with the edge of the base Secure the first base with two M3x8...

Page 24: ...ing a spool of Prusament as an example Once the holder is aligned remove the spool insert two M3x8 screws and tighten them to prevent the parts from moving STEP 37 Attaching anti slip pads Grab the bundled anti slip board and break out four pads Peel off the protective film and attach the pads from the bottom side of the spool holder Tip avoid attaching the pads near or on the rails it might make ...

Page 25: ...assembling the spool holder and finishing the entire assembly Eat the remaining Haribo leave no bear behind As soon as you replenish your energy dive into the last few steps of this manual STEP 39 Finalising the assembly For the following step please prepare PEI MINI sheet 1x MINI power supply 1x ...

Page 26: ...e read the 3D Printing Handbook which is tailor made for your printer The latest version is always available at prusa3d com 3dhandbookMINI WARNING Always check for the latest firmware You can do it online at prusa3d com drivers or insert the bundled USB drive in the printer Detailed instructions are in the Handbook If the USB drive includes a newer firmware than already installed you will be promp...

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