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3ntr A2v2 User Manual Download Page 2

Congratulations!

We want to thank you for the purchase and the trust you granted us.

The product you are going to use is the result of months spent into research, development and improvements

Our priority is letting you use a reliable tool, giving you years of trouble-free use.

This manual we will teach you all the use and maintenance duties you could face during the entire lifetime of 
our printer(s): should you find any inaccuracy or simply need more information, feel absolutely free to contact 
us at

[email protected]

The manual has been prepared trying to list ALL the steps needed to perform each duty: it may look boring, but 
we invite you to resist and read thoroughly before committing to machine use – you will be soon an expert user 
with good knowledge avoiding delays and/or mistakes.

2

Summary of Contents for A2v2

Page 1: ...User manual 3d printers A4v3 A2v2 V 201015 1 ...

Page 2: ...ll teach you all the use and maintenance duties you could face during the entire lifetime of our printer s should you find any inaccuracy or simply need more information feel absolutely free to contact us at info 3ntr net The manual has been prepared trying to list ALL the steps needed to perform each duty it may look boring but we invite you to resist and read thoroughly before committing to mach...

Page 3: ... products above are in compliance with the essential requirements of directive EN 60335 1 2012 01 safety of household and similar electrical appliances 2006 42 EC machinery directive 2006 95 EC low voltage directive and 2004 108 EC electromagnetic compatibility This is a class A product In a domestic environment this product may cause radio interference in which case the user may be required to ta...

Page 4: ...rinter ventilation don t obstruct air inlets and outlets keeping them free from dust and other contaminants Risk of toxic fumes wrong temperature settings may cause toxic fumes emissions Be sure to follow guidelines and settings from supplier of your filament Use printer in a well vented room If possible use machine smoke exhaust port Electrocution do not use in presence of condensing moisture and...

Page 5: ...dditional collateral as defined below 3 Shall be substantiated with proof of original purchase including the serial number of the product D Handling of complaints 1 Jdeal Form will repair or replace hardware or hardware parts non compliant in a commercially reasonable time for Jdeal Form or his authorized representative as solely determined by Jdeal Form or his representative 2 Jdeal Form shall be...

Page 6: ... and exclusive remedy by the end user against Jdeal Form where permitted by law and subject to paragraph h Except for this limited warranty Jdeal Form provides no other warranties express or implied with respect to the performance of any product Without limiting the foregoing all implied warranties including warranties of merchantability or fitness for a particular purpose are excluded Jdeal Form ...

Page 7: ... risk piercing the packaging therefore damaging content Follow this procedure 1 Remove plastic straps using scissors To open wooden box don t use crowbars use a screwdriver to remove cover and side panels 2 Remove cover 3 Remove packaging foam bubbles 4 Remove packaging side panels 5 If a pedestal has been delivered assemble it taking care to tighten ALL the bolts 6 If you didn t buy a pedestal be...

Page 8: ... contains USB cable AC power cord 3mm ABS spool 3mm HIPS spool Spare cooling fluid Hex keys Filament feeder with PTFE piping Spool holders Inside the printer you will also find the test report don t discard it 8 Fig 2 What s in the box ...

Page 9: ...echanical parts below lower plate therefore DON T LIFT the printer alone with forklift or manual lift trucks Before connecting AC power you must mount the supplied devices procedure is the same for both printer models The spool holders need to be bolted on using the supplied 6mm hex key Before mounting it on the printer each filament feeder needs to be fitted with its PTFE piping Screw the pipe on...

Page 10: ...der you can mount them on the printer feeding the piping thru the rear openings just above each feeder position Each feeder has a mandatory position refer to below drawing to understand feeder placement on each printer model 10 Fig 5 PTFE piping must not touch feeding roller Fig 6 Feed PTFE in the rear openings Fig 7 Mounting feeder on printer ...

Page 11: ... mandatory position please refer to fig 7 and 8 for respective printer models Mount all filament feeders Plug cables to each feeder Feeder 1 rightmost when looking at rear side of printer has longer cabling to allow its use with optional feeder SPFU for use with soft polymers 11 Fig 8 Locking feeder on printer Fig 9 lock feeder into rear seating holes Fig 10 electrical wiring connection ...

Page 12: ...ngled Front side extruder is the 1 therefore has to be fitted with leftmost PTFE piping looking from frontal printer area Connection is performed simply inserting PTFE pipe into tube holder pushing it until fully seated Perform same duty with remaining extruders taking care not to tangle piping 12 Fig 11 Front plate removal Fig 12 PTFE pipe routing Fig 13 Fit PTFE piping on extruders ...

Page 13: ...ng a PC to better understand basic machine use Just be sure to route USB cable away from sources of electrical noise such as power transformers electric motors and other high power high frequency devices Now connect the printer to your AC wall socket and you re ready to go 13 Fig 14 Connect USB cable Fig 15 Plug in AC cable ...

Page 14: ...vers from this site http www ftdichip com Drivers VCP htm Please refer to above web site for installation instructions on you specific PC architecture After making sure that your PC is connected to the printer you can install printer management software Our choice goes to Repetier Host being the most complete and advanced solution to perform any task you will ever need to perform We will therefore...

Page 15: ...e periperals connected to your PC inkjet printer mouse webcam camera smartphone the printer will be connected to a surely different port number You can use the REFRESH PORTS button to force an immediate update of available USB ports list Baud rate set it to 250000 Other parameter must be left unchanged at default values see fig 1 15 Fig 18 Connection parameters ...

Page 16: ...ob Kill we recommend to leave ON this option Otherwise should your print process finish Friday night and you leave you printer ON for the weekend you may be getting extruder jam requiring a nozzles change on Monday some polymers like PLA or PVA may seriously degrade in few hours time Disable heated bed after job kill if you disable this option your heated bed will be constantly ON shortening there...

Page 17: ...f extruders available on your printer and each nozzle diameter standard supply is 0 4mm but other sizes are available IMPORTANT be sure to change preset color of each extruder default is yellow for each one to get easy preview of the multi extruder prints 17 Fig 20 Extruder control ...

Page 18: ... table Xmin Xmax Pds Ymin Ymax Pdd Largh Prof Alt A2 0 610 0 0 350 0 610 350 500 A4 2 ex 0 300 0 0 200 0 300 200 200 A4 3 ex 0 300 0 0 175 0 300 175 200 Be sure that ALL the Home X Y Z settings are set to MIN failing to do so you could not be able to use your printer 18 Fig 21 Printer shape ...

Page 19: ...ces that speed up polymer degradation Remove spool from packaging and fit it on spool holder Secure the spool applying some friction to avoid the spool to unwind out of control tangling To prepare the filament to be used just two simple steps are required 1 Make a cone like tip to the filament end using a pencil sharpener or a scissor to improve insertion process 2 Usually filaments retain the spo...

Page 20: ...ssure on the feeding roller more pressure will improve traction but will increase the chances of ruining the filament The pressure is set correctly when during feeding and retraction the handle is not moving up and down symptom of feed roller chewing the filament When looking at the feeders rear printer side the first one is the rightmost When looking at the LCD panel front printer side the first ...

Page 21: ...equired temperature is reached grab the feeder handle and lock it open 3 Pull and remove filament from machine Filament removal running machine When machine is running if you need to replace the empty spool you can do it quickly with just a few steps 1 Use the jogwheel to navigate to TUNE CHANGE FILAMENT 2 Printer will pause retract filament while moving to a safe parking area 3 Release and lock o...

Page 22: ...t color is changing if new filament color is different need to change temperature set extruder temperature to match the needed one for new filament Wait for extruder temperature to settle 5 Feed 50mm at 50mm minute with manual command See if filament is coming out of the nozzle freely 6 Done 2 New polymer has lower melting point than the previous one i e changing from ABS to PLA 1 Turn on heating ...

Page 23: ... the heated print plate magnets will align and lock automatically Tray printing surface needs to be clean and free from remains from previous prints the film coating should be intact otherwise you should consider applying a new layer Each time you use a tray be sure about the lower part of the tray facing toward heated Z plate to be perfectly clean Never use any kind of spray lubricants cleaners o...

Page 24: ...s update requesting immediate reboot Print is lost if someone unplugs USB connection printing thru SD card Pros printing unharmed by communication issues maximum printing speed being free from USB slowdowns No PC is tethered No networking issues Cons less visual managing tools if there is no USB connection Using a print server i e Raspberry PI Pros remote management wifi or ethernet one printer ca...

Page 25: ... the tray surface Each time you remove a print check the integrity of the protective film and or airspray or any other adhesion agent and replace refresh if needed Nozzle change The procedure is really easy 1 Be sure that extruder bed and heated chamber if present are all turned off and at room temperature 2 Lower the printing bed Z axis to gain access to the printhead 3 Using a 7mm spanner remove...

Page 26: ...r body twisting until you have 1mm between hex part of the nozzle and the heater body Fig 29 3 Extruder has two mounting options NORMAL when printing temperature won t exceed 255 C PLA PVA HIPS Elastomers most ABS and PA and HOT when you want to fully use the thermal capabilities of extruder up to 410 C The options are obtained with the mounting position of the stainless steel pipe fig 31 32 WARNI...

Page 27: ...3 Wait for cooling at room temperature of ALL parts 4 Move the plate at Z 100 to gain easy access to nozzles 5 TURN OFF PRINTER DON T go on with a powered on machine 6 Push on release collar 1 while pushing in the PTFE pipe 2 7 Keep pushing on 1 and pull PTFE pipe 2 8 Release the locking screw 3 on the tube adapter 4 using a 2mm hex key Just half turn if you unscrew too 27 ...

Page 28: ...crew 6 12 Now all the extruder assy 7 can slide downwards from holding part 13 Put back the new extruder assy in the holding part sliding it up position will be higher than normal Gently lock the screw 6 14 Put back on the tube adapter 4 15 Plug in the electrical connector 16 Perform Z calibration of the nozzles 17 Plug in the PTFE piping 2 18 Feed the filament to the extruder 19 Perform XY nozzle...

Page 29: ...m polymer traces but also from fingerprints dirt sweat grease may prevent proper polymer adhesion to the tray Use alcohol based cleaner to degrease the tray isopropyl alcohol would be great but also the household type can be used as well To remove hairspray just wash the tray with soap and warm water There are no parts that can rust Lower surface the part leaning against the heated plate must be k...

Page 30: ...nt approaches Solvent cleaning put the nozzle in a small glass jar with selected solvent Process may be slow hours or days Not all polymer can be diluted with solvents or need very aggressive chemicals We don t recommend this approach except with ABS tha can be cleaned with acetone Heat cleaning using a hot air gun gently warm up the nozzle and use compressed air to blow in the nozzle from small o...

Page 31: ... extruders remove machine cover 2 turn off machine and follow procedure to remove PTFE piping from extruders 3 unplug the 1 feeder be sure to pull the connector NOT the cable 4 Route the feeder cable thru PTFE passage on machine rear side and bring it toward extruder assembly 5 Wrap the feeder cable around the black piping going from machine body to extruder assy 31 Fig 34 SPFU Fig 35 Unplugging 1...

Page 32: ...e lockrings 11 Plug the motor connector into SPFU 12 Feed the supplied 6x4 PTFE pipe thru the opening on the back used to route the existing 1 piping 13 Feed the soft polymer filament into 6x4 PTFE pipe 14 Push on the feeding lever to feed pointed filament thru SPFU Push until you don t reach the extruder heating area 15 Bring the 6x4 PTFE to match upper opening on the SPFU 16 Select the Kisslicer...

Page 33: ...u above check you can proceed to the calibration procedure please remember that each procedure step is meant to be performed on ALL extruder mounted on your machine 1 Check that there is at least one millimeter clearance between lower part of tube adapter 3 and extrusion holder 5 2 Release the setting screw 1 on extruder block 3 Pull the extruder up 4 Slightly tighten the setting screw 1 to tempor...

Page 34: ...bit of A4 copy paper between nozzle and printing plate paper must not pass 13 Gently screw in the pipe adapter it will pull up slowly the extruder assy stop as soon as paper will find enough clearance to pass between nozzle and plate Do the same for ALL nozzles mounted 14 Move down printing plate to gain better access to setting screws 15 Lock setting screws 1 and 2 for each extruder 34 ...

Page 35: ...pot alignment differences 2 Download and unzip it in your STL directory the calibration file http 3ntr eu wp content uploads 2015 08 xy_align zip 3 Import the downloaded files into KISSlicer use mouse to click on the files while pressing the CTRL key 4 Right click on the small file preview icon and select SHOW MESH TO EXTRUDER 5 Assign extruder 1 to xy_align_ref stl 6 Assign extruder 2 or 3 to xy_...

Page 36: ...ntal same logic as the DX arm just remember that you must subtract if position found is on the LEFT of the zero notch or add if on the right of the zero notch 11 Update the offset values two options FIRMWARE preferred set the machine parameters to get precise performance letting you use any gcode or slicer app Send the command M218 to the printer you will get a reply like the following result Basi...

Page 37: ...ou will end up with a printer that can t use older gcodes generated with previous offsets This approach is the recipe for a nightmare if you have multiple machines Just enter the correction values in the X and Y offset fields the values found reading the XY_align part 37 Fig 46 Changed parameters Fig 47 Storing settings Fig 48 Slicer offsets Fig 49 X offset requires 0 1mm correction ...

Page 38: ...ne cover The liquid reservoir should be filled up to 4 5mm from the top To check the level you must remove the upper left part cover be sure to remove the AC cable before attempting cover removal If needed you can refill with a mix of radiator liquid and water 20 25 mix be sure to tighten lid when done Lubrication All machine parts don t need any special care about lubrication but some cleaning ma...

Page 39: ...e 221 and version 4 7 15 as from Fig 42 5 If the machine has a firmware much older than the one available please consider the update you can look at the changelog to see improvements and new features available Machine from earlier production lots won t reply with a release number and or firmware type use following table to find your version 2 A2 3ex 22 A2v2 3ex 226 a2V2 2ex 221 A2V2 3ex ALL METROL...

Page 40: ... website Second text box device must be set to Mega ATMEGA2560 USB port COM port must be the same you used so far to connect to the printer with the control software I e Repetier Host Baud Rate will be automatically set at 115200 Click on Upload button and wait procedure will take a couple minutes when finished XLOADER will show the amount of bytes successfully transferred IMPORTANT After upgradin...

Page 41: ...r boot enter User pi Password raspberry At system prompt insert startx When graphical user interface is loaded at the right upper corner you sill see the familiar wifi icon Click on it to configure according to your router and networking standards If everything is OK at next system boot you will be able to read the newtoking setup IP number of your print server 41 ...

Page 42: ...te can be changed anytime when the above screen is shown just turning the front panel jogwheel SD During printing from SD card tells the percentage of the printin process performed so far 1 100 Q00 13 Print time elapsed Printing status line here are shown process messages and errors Pushing on the jogwheel button you will gain access to the main menu MAIN Menu Info screen Prepare Tune Control SD C...

Page 43: ...low Flow1 Flow2 Flow3 Change Filament Back to main menu Speed setting the feedrate printing speed Same as turning the jogwheel when info screen is displayed Nozzle Nozzle 1 Nozzle 2 Nozzle 3 sets nozzle temperature do note that nozzle 3 is always referred to the heated chamber if installed Bed sets printing bed temperature Fan sets print area cooling fan speed 0 Off 255 Max speed Flow Flow1 Flow2 ...

Page 44: ... move X or Y axis at 10mm steps Move 1mm can move X Y Z or current extruder at 1mm steps Move 0 1mm can move X Y Z or current extruder at 0 1mm steps CONTROL menu Main Temperature Motion Store memory Load memory Restore failsafe Back to main menu TEMPERATURE thermal settings MOTION movement settings STORE MEMORY save current settings will be retained in case of power off LOAD MEMORY restore to pre...

Page 45: ...s print area cooling fan speed 0 Off 255 Max speed PID P I D H1 H2 H3 heating profile DO NOT ALTER THOSE SETTINGS if you aren t absolutely confident with what you re doing PREHEAT PLA ABS GUM CONF sets preheating temperatures for desired polymer PREHEAT PLA ABS GUM CONF menu Temperature Fan Nozzle Bed Store memory TEMPERATURE back to previous menu FAN sets fan speed during preheating NOZZLE nozzle...

Page 46: ...L back to previous menu ACCEL XY acceleration during print VXY JERK speed increase machine can perform without acceleration on XY VMAX X Y Z max X Y Z speed VMIN minimum printing speed XY VTRAV MIN minimum travel speed XY AMAX X Y Z max acceleration X Y Z A TRAVEL travel acceleration XY X Y Z step mm how many stepper pulses are needed for each mm travel VE JERK E0 E1 E2 E3 speed increase machine c...

Page 47: ...s Check the connector to be fully seated Check cable integrity You may want to change extruder for a new one Feeding roller setting screw is loose Tighten it using a 2mm hex key 2 Part won t stick to the plate Plate is dirty Clean the plate using Acetone when printing ABS or alcohol based cleaners PLA or just with warm water and soap PA to remove fingerprints glue leftovers and other adhesion impr...

Page 48: ...le jam see point 1 of this list Part is at nozzle level if printing as PC peripheral Problem with Usb connection cable near electrical noise sources such as motors power transformers change cable routing or buy a shielded one if printing as PC peripheral system rebooted i e OS or antivirus update or wrong power saving settings AC power interruption use an UPS suited for the printer power rating 6 ...

Page 49: ... INIT SD CARD or CHANGE SD CARD options from LCD panel Defective SD card Replace SD card 10 Printed part looks squashed print plate Z movement is jerky Motherboard cooling fan is dead Replace fan Connector of one of z stepper is faulty or unplugged Restore connection or change cable Stepper Gearbox is faulty Replace it 11 Printed part looks shifted See 10 Wrong Z nozzle leveling Do Z nozzle leveli...

Page 50: ... into bowden PTFE pipe feed to extruders ANY POLYMER Filament diameter is too big change spool Excessive pressure on feeding roller filament is squeezed relieve pressure PLA Using heated chamber PLA will inflate when exposed to temps over 50 55 C DON T use heated chamber when using PLA 50 ...

Page 51: ...int tray surface reconditioning 29 Feeding roller cleaning 30 Extruder cleaning 30 Fitting the soft polymer feeding unit SPFU 31 Nozzle Z leveling 33 XY nozzle calibration 35 Planned maintenance 38 Heat exchanger and liquid reservoir 38 Lubrication 38 Firmware update 39 Firmware update procedure 40 Octoprint configuration print server 41 LCD printer panel 42 Info screen 42 MAIN Menu 42 PREPARE men...

Page 52: ...doesn t stop and collides 48 7 Temperature readout is high 378 C even if nozzle is cold 49 8 Printed part has falling sides molten 49 9 Can t find files on SD card 49 10 Printed part looks squashed print plate Z movement is jerky 49 11 Printed part looks shifted 49 12 No USB connection LCD is not lit 49 13 Sketchy movement axis doesn t invert direction if needed 50 52 ...

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