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3D PRINTING

HANDBOOK

USER MANUAL FOR ORIGINAL PRUSA MINI

ION

ENG

Содержание PRUSA MINI

Страница 1: ...3DPRINTING HANDBOOK USER MANUAL FOR ORIGINAL PRUSA MINI ORIGINAL INSTRUCTIONS ENG ...

Страница 2: ... drivers German www prusa3d de treiber Polish prusa3d pl sterowniki Italian www prusa3d it driver Spanish www prusa3d es drivers y manuales QUICK GUIDE TO THE FIRST PRINT 1 Read chapter 6 Your First Print carefully 2 Place the assembled printer on a flat and stable surface 3 Start the printer insert the enclosed USB drive and update the firmware 4 Follow the on screen instructions to calibrate the...

Страница 3: ...nter to produce parts for building another 3D printer The lineup of Original Prusa devices is constantly expanded with new machines and upgrades The main goal is to make technology more accessible and understandable to all users Josef Prusa also organizes workshops for the public participates in professional conferences dedicated to the popularization of 3D printing For example he lectured at the ...

Страница 4: ...res 21 7 1 Menu structure 21 7 2 Mesh Bed Leveling explained 22 7 3 Factory reset 22 7 4 Network connections 22 8 Printing your own models 23 8 1 Obtaining a printable model 24 8 2 Creating your own models 24 8 3 What is a G code file 24 8 4 PrusaSlicer 24 8 5 Importing objects into PrusaSlicer 26 8 6 Using supports 27 8 7 Print speed vs Print quality 28 8 8 Infill 29 8 9 Brim 29 8 10 Large object...

Страница 5: ... Flashing unsigned firmware 43 11 FAQ common issues and how to solve them 44 11 1 Skewed X axis 44 11 2 Printer can t read the USB drive 45 11 3 Loose X and or Y axis belts 45 11 4 Filament stuck in the PTFE tube 45 11 5 X Axis homing fails 45 11 6 Heating errors 45 11 7 Fan errors 45 11 8 Downgrading the firmware 46 12 Advanced hardware troubleshooting 46 13 Print quality troubleshooting 46 ...

Страница 6: ...h this symbol can exceed the ambient temperature significantly Touching such parts may by an unprotected body part may lead to burns Unprotected moving mechanical parts exercise caution Do not touch the print head during printing There is a risk of injury caused by mechanical and or heated parts Large electrical currents are switched on and off in the immediate vicinty of parts marked with symbol ...

Страница 7: ...arranty for end customers in the EU and 12 months for businesses and non EU customers Wear and tear category components and consumables are excluded from this warranty The warranty period begins with the day when the customer receives the goods Neither the Seller s liability for defective products nor the quality warranty applies to printers or parts damaged by handling which is in conflict with t...

Страница 8: ... from the socket pull the plug rather than the cord to reduce the risk of damage to the plug or to the AC outlet The plug that goes into the printer has a safety locking mechanism first pull the cover of the plug to unlock it then disconnect the plug from the printer 6 Never disassemble the printer s power supply it does not contain any parts that could be repaired by an unskilled worker All repai...

Страница 9: ...ease read the handbook carefully since all chapters contain valuable info regarding the operation of the equipment getting started instructions 3D printing tips and everything about regular maintenance Please check the prusa3d com drivers page for the updated version of this 3D printing handbook PDF download In case of any printer related problem do not hesitate to contact us at info prusa3d com W...

Страница 10: ...s used for the configuration of the 3D printer Use the knob to scroll through the menus and confirm your selection with the press of the knob 6 Power switch when the printer is not in use turn it off using the power switch 7 USB port compatible with USB 2 0 3 0 flash drives FAT32 filesystem Used for reading print files G Codes from the inserted drive and flashing the firmware 8 Main PTFE tube lead...

Страница 11: ... so the filament strand can enter the PTFE tube from below Filament must not bend at an acute angle 3 Package contents Accessories bundled optional Your Original Prusa MINI comes bundled with USB drive with firmware files Allen key Spanner Surface cleaning wipes infused with isopropyl alcohol Acupuncture needle These are the basic tools required for correct assembly and basic maintenance However w...

Страница 12: ...heets Read maintenance instructions in chapter 10 Regular maintenance Use isopropyl alcohol to clean degrease the sheet Calibrate Live Z when you switch sheets Wipe the sheet with IPA infused towel before the first print Do not wash with running water Do not peel off the PEI sticker Do not use acetone to clean the textured sheet Spool holder and filament spools Place in a location where the spool ...

Страница 13: ...elp prusa3d com However in case the suggested solutions don t work please contact our tech support via e mail at support prusa3d com or via the Live chat at shop prusa3d com the chat is in the lower right corner 5 3 Unpacking assembly and first start The Original Prusa MINI 3D printer comes separated into three parts Please flip this handbook to get to the Assembly instructions and pre flight chec...

Страница 14: ... the first print 4 Perform the initial calibration 5 Load filament 6 Start the first print 6 1 Basic controls You can configure and control the entire device with a single control element a rotational knob which can be pressed to confirm the selection The reset button is placed to the left from the control knob Pressing the reset button equates to quickly toggling the power switch It is useful whe...

Страница 15: ...estart button next to the Knob 5 The update process should start automatically 6 Wait until the process is complete 6 3 Preparing flexible steel sheets Please follow the instructions for the sheet of your choice see below and prepare it for the first print The heatbed has embedded high curie temperature magnets inside which hold removable spring steel sheets in place There are two pins at the end ...

Страница 16: ...tool and consists of a series of tests They are designed to reveal the most common issues such as incorrect wiring The progress and results of each step are displayed on the LCD In case any issues are found the selftest is interrupted and the cause of the error is shown to guide users in troubleshooting The selftest consists of Extruder and print fan test Using the RPM monitoring X Y and Z axis te...

Страница 17: ...d by the extruder gears automatically The printer will ask you whether some plastic has been extruded from the nozzle In case it wasn t choose No and the printer will attempt to extrude more plastic The printer keeps track of the currently loaded filament even when powered off You can check the type of the currently loaded filament in the bottom right corner of the LCD Menu For the next step keep ...

Страница 18: ...er 7 2 Mesh Bed Leveling for more information and start printing a zig zag pattern on the print surface The nozzle will be at the height defined by the M I N D A probe setting It must not by any means touch the printing surface Observe the line which is being extruded on the print surface A new menu will automatically show up use it to tune the nozzle height in real time by turning the knob The ai...

Страница 19: ...t your first print Before you start let s go through the final checklist 1 MINI is fully assembled and placed in a suitable location 2 The firmware is updated to the latest version 3 All of the calibration procedures were successful 4 A clean print sheet cleaned with IPA infused cleaning wipe is on the heatbed 5 Filament is loaded 6 9 Starting the first print Once everything is ready you can navig...

Страница 20: ...ools down If that s not the case lift the steel sheet and bend it both inwards and outwards rotate it 90 degrees and repeat the bending Don t forget to remove all leftover pieces of filament such as the intro purge line the skirt and the support base Try to avoid touching the steel sheet surface with your fingers fingerprints can decrease the adhesion of the next print 6 11 After print checks and ...

Страница 21: ...d filament Change filament Purge filament Calibration Wizard Live Adjust Z Auto home Mesh bed leveling Selftest First layer calibration Settings Temperature Nozzle Heatbed Print fan Cooldown Move Axis Move X Move Y Move Z Move E Disable Steppers Factory Reset FW Update Fil sens on off Menu Timeout On Off LAN Settings TZ UTC 21 ...

Страница 22: ...rpolated and used to create a virtual mesh of the bed If the bed is slightly warped the probe will still precisely follow the surface during printing according to its measured mesh improving the quality of the first layer 7 3 Factory reset A factory reset can be performed through LCD Menu Settings Factory Reset This will reset all data to default values 7 4 Network connections Original Prusa MINI ...

Страница 23: ...usaConnect in the current version works only on local area network and its features will be expanded in further releases Wi Fi module an optional accessory is not supported in default firmware Information about Wi Fi module availability will be published at www prusa3d com or blog prusaprinters org Original Prusa MINI is also compatible with a third party tool for network printing called OctoPrint...

Страница 24: ...to download under the Creative Commons Attribution Non Commercial Models not to be used commercially you must always include the name of the author or for a small fee We have selected the most interesting sites www prusaprinters org www thingiverse com www myminifactory com www pinshape com www youmagine com www shapeways com www gambody com However models in stl obj or similar formats cannot be 3...

Страница 25: ...rt the 3D model stl obj 3mf and similar formats into a set of instructions for the printer called G code G code is a file format readable by 3D printers The file contains information such as nozzle movement the amount of filament to extrude temperature settings or fan speeds There are dozens of slicers available each with their own advantages and disadvantages The three most commonly used slicers ...

Страница 26: ...t either by selecting Add a new printer option in the same menu or by going to Configuration Configuration Wizard Then select the layer height infill and the material you want to use Please note that built in filament profiles have pre defined and tested settings If you select a wrong profile it may affect your print due to incompatible settings PrusaSlicer allows you to import STL OBJ AMF and 3MF...

Страница 27: ... air which is impossible This is where supports need to be used PrusaSlicer has this function built in Automatically generated supports in PrusaSlicer You can select from three options Support on build plate only generate supports only around the object For support enforcers only generate supports only where enforcers are placed Everywhere generate supports everywhere The default values work in a ...

Страница 28: ...licer the upper right window shows the Print settings option The default setting is 0 15 mm QUALITY but you can speed up the printer by choosing the 0 20 mm SPEED option or even 0 25 mm DRAFT quality Raising the layer height will result in less detailed models with more prominent layers If you prefer quality over speed choose a 0 10 mm DETAIL option Printing time will increase noticeably however t...

Страница 29: ...e complex shapes The purpose of the infill remains the same give the object a certain level of structural strength Many models can be printed with 10 15 infill but if you require the model to be stronger e g a structural part select a denser infill 8 9 Brim A brim is used to increase adhesion to the print bed and decrease the possibility of warping This is done by printing extra outlines of the fi...

Страница 30: ...ragging the corresponding gizmo handles Alternatively you can use the object manipulation window in the bottom right corner to type in an exact scale value Changing the scale of a printed object If you need to print an object that does not fit the printer at its original scale you have to cut the object into smaller pieces Select the Cut tool from the left menu or press the C key Position the cut ...

Страница 31: ...lor change in PrusaSlicer 1 Switch to the layer preview using the button in the lower left corner 2 Using the slider on the right side select a layer where the color change should occur 3 Click on the orange plus icon 4 A preview is instantly displayed You can remove the color change by clicking on the grey cross button that is now displayed instead of the orange plus button 5 Export the G code an...

Страница 32: ...specting an object before export 9 Material guide The Original Prusa MINI can print with many popular materials Materials vary in both mechanical and optical properties as well as in the ease of use If you re new to 3D printing your first filament should definitely be PLA Only when you are limited by some of PLA s disadvantages it s time to try other filaments like PETG or ASA 9 1 PLA PLA is the m...

Страница 33: ...d Make sure the surface is clean as described in 10 1 Flexible steel sheet surface preparation chapter 9 2 PET PETG PETG is another commonly used material for 3D printing It is a great choice for printing mechanical components Compared to PLA it has higher temperature resistance is more ductile and therefore less brittle Due to its low thermal expansion it holds well on the heatbed and does not wa...

Страница 34: ... only talk about ASA but the same goes for ABS ASA is a strong and versatile material A higher melting point than PLA gives ASA excellent heat resistance your prints will not show signs of deformation up to around 100 C Unfortunately ASA has a very high thermal expansion compared to PLA which complicates printing especially for larger models Even with a heated bed set to 100 C the print can begin ...

Страница 35: ... sheet surface preparation chapter WARNING Some very soft materials can adhere very strongly to the smooth PEI sheet and require the use of a glue stick as a separator to avoid damaging the PEI surface This is not necessary with the textured powder coated PEI 10 Regular Maintenance We have designed the MINI as a reliable 3D printing workhorse however it s still a machine with moving parts which me...

Страница 36: ... switched the steel sheets visually inspect the quality of the first layer and adjust the nozzle height accordingly with Live Adjust Z when switching between different types of steel sheets Consumable parts such as PEI sheets smooth textured etc are not covered by our warranty because the coatings are designed to diminish over time unless failure has occurred due to a defect in materials or workma...

Страница 37: ...l create microfractures in the PEI texture which will cause the surface to deteriorate over time This surface is used on our print farm look at the printed parts you have on your printer for reference 10 3 Spring steel sheet with SMOOTH double sided PEI Perfect for PLA Great adhesion with almost all materials Smooth bottom of prints Tiny details will stick great Rejuvenate with acetone from time t...

Страница 38: ...to be removed from axis because the plastic lip will prevent most of the grease from getting inside 10 6 Fans Both fans measure current RPM Revolutions Per Minute meaning they can detect when the fan suddenly slows down e g due to a piece of filament getting stuck in it If you get a fan error check that it can rotate freely clear any debris that may be stuck in it Both fans should be checked and c...

Страница 39: ...uck in this tube 3 Remove the main PTFE tube as described in Step 2 and also undo the fittings in the extruder or in the print head to access PTFE tube three and four These only need to be inspected if the filament fails to pass through them 10 9 Filament sensor optional accessory You can buy a mechanical IR sensor as an optional accessory for the Original Prusa MINI The sensor is installed onto t...

Страница 40: ...emove the PTFE tube 10 9 2 False sensor readings and debugging If you encounter issues with the filament sensor such as incorrect or random readings please make sure that the sensor is connected properly Follow the steps in the assembly guide at help prusa3d com and open the electronics box cover Inspect whether the filament sensor is connected correctly and that the wiring is not damaged Contact ...

Страница 41: ... the filament and push an acupuncture needle bundled with the printer or a thin wire 0 3 0 35 mm into the nozzle from below between 1 and 2 cm deep Wearing gloves is recommended melted material may pour out unexpectedly 2 Choose Load filament option from the LCD menu and check if the filament is extruded properly 3 Push the acupuncture needle or wire into the nozzle again and repeat these steps se...

Страница 42: ...emperature Nozzle Heating the nozzle is essential for this process 2 Unload any loaded filament 3 Gain better access to the nozzle by moving the extruder axis as high as possible Go to LCD Menu Settings Move Axis Move Z Alternatively you can just hold down the knob for a few seconds Rotate the knob to set the height 4 Hold the heater block with a 16mm spanner or an adjustable wrench 5 Use pliers o...

Страница 43: ...his signature before an update To flash your own or a community made unsigned firmware you ll have to break the appendix on the Buddy board and move the jumper into the correct position This also voids your warranty on electronics First pull out the power switch to access the appendix 1 Then take a thin screwdriver and carefully break off the middle part 2 see the pictures in this chapter Also che...

Страница 44: ...ignment of both parts Once the 3D printer is reassembled move the Z axis nozzle close to the steel sheet without touching it Then carefully move the print head from left to right by hand and observe whether the nozzle keeps the same distance from the sheet all the time Slight deviations are allowed since the printer can compensate for them thanks to the Mesh Bed Leveling routine A faulty M I N D A...

Страница 45: ...a printer malfunction and prevent proper printing The easiest way to check is printing a round object if any of the belts are not tightened properly the result is an irregular shape instead of a perfect circle Y axis belt is located under the heatbed X axis belt moves the print head 11 4 Filament stuck in the PTFE tube If a filament strand gets stuck anywhere in the printer it s generally very eas...

Страница 46: ...rent firmware with the one placed on the USB drive 12 Advanced hardware troubleshooting Advanced hardware troubleshooting and part replacement guides are available online through manual prusa3d com 13 Print quality troubleshooting If you feel your prints are not fully up to specs or they display some serious quality issues shifted layers ghosting under extruded parts you may need to run some troub...

Страница 47: ...Print and share Do not forget to tag your prints with prusamini while sharing so we can find pin and showcase them with our http www prusa3d com original prusa i3 prints Happy Printing 47 ...

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