FABtotum Personal Fabricator User Manual Download | Manualshive

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FABtotum Complete Manual

www.fabtotum.com

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Firmware Development

The Totumduino firmware is based on the Marlin by Erik Zalm.
Its source code (called FABlin) can be found on GitHub at

https://github.com/FABtotum/FABlin

.

Communications from the Raspberry Pi to the Totumduino use a custom set of G-codes. Please refer to the Raspberry Pi
section for details on how it is done.
The G-code interpreter on the Totumduino translates the commands into appropriate motion control actions.

Firmware development: getting started
FABlin is available at Github, in:

https://github.com/FABtotum/FABlin

If you have GitHub installed, you can get the source directly by cloning it:

https://github.com/FABtotum/FABlin.git//

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Summary of Contents for Personal Fabricator

Page 1: ...2 First setup 2 Software 2 1 FABUI Overview 2 2 Network Configuration 3 3D Printing 3 1 Your first 3D Print 3 2 Slicing with cura 2 X 3 3 3D Printing filaments guide 3 4 Improving adhesion 3 5 Advanced Printing Head PRO 3 6 General 3D printing troubleshooting 4 Milling 4 1 CNC Milling Making a Make More Sign 4 2 Milling Engraving Bits 5 Laser Engraving ...

Page 2: ...engraving and cutting 6 3D Scanning 6 1 Getting started 7 Maintenance 7 1 Head Installation 7 2 Bed calibration 7 3 Nozzle Height calibration 7 4 Filament loading unloading 7 5 Feeder Maintenance 7 6 Changing the nozzles 8 Resources Developers 8 1 Totumduino Board Overview 8 2 Head Development Board 8 3 Head Development Guidelines ...

Page 3: ...r the complete manual available at fabtotum com support Place the unit on stable clean surfaces away from any obstacles within 30cm 12 from the unit The unit is intended for indoor use only Do not use or place outside The unit only operates with room temperatures between 15 C and 28 C Place unit far from sources of heat humidity or cold air Keep clean dust and clear of any liquid IMPORTANT SAFETY ...

Page 4: ...ial datasheet For safety reasons some materials can t be used for 3D printing Milling or Laser engraving Check the material proprieties or consult support if unsure Some materials when exposed to high temperatures can release dangerous fumes and volatile chemical elements Skin Health risks related to the skin are very uncommon If material residue ends up on your epidermis wash the area with plenty...

Page 5: ...idges milling chuck SD card fans nozzle 4th axis feeder gear hot plate s pogo pins and all removable connectors and PCBs Legally applicable warranty period s 2 years for natural persons and businesses in the European Union 6 months for natural persons and enterprises in the rest of the World The Warranty period starts from product s delivery date for online sales or from purchase date for all othe...

Page 6: ... to prepare the FABtotum before the first setup without damaging the unit Particular attention must be paid when removing the unit from its box During unboxing you should also make sure there are no damages that might have occurred during transportation NOTICE Always operate according the Safety and Warranty Guidelines Unboxing the package ...

Page 7: ...FABtotum Complete Manual www fabtotum com 7 What s in the box ...

Page 8: ...FABtotum Complete Manual www fabtotum com 8 Connecting to the FABtotum ...

Page 9: ...FABtotum Complete Manual www fabtotum com 9 Installing heads and modules ...

Page 10: ... like printing and milling Using a non calibrated hardware could even damage the unit in the long run After unboxing setting up the machine and connecting to it with your favourite browser you ll be prompted with a setup configuration wizard Once connected to the FABtotum via ethernet cable you ll be prompted to initialize the unit operating system FABUI Colibri click ok and follow the instruction...

Page 11: ...um com 11 Now it s time to enter your settings and read carefully all the safety notices also available on fabtotum com knowledgebase Enter the username email Name Surname and password these will be used to access and operate the device ...

Page 12: ...m Complete Manual www fabtotum com 12 This passage is not mandatory but you can set up a short name for your unit a z 0 9 that will be always accessible in your local Wlan Lan in this example http fab01 local ...

Page 13: ...FABtotum Complete Manual www fabtotum com 13 Choose the Wlan you wish your unit will be connected to ...

Page 14: ...FABtotum Complete Manual www fabtotum com 14 The procedure is finished the installation will be finalized and you will be redirected to the onboard FABtotum User Interface FABUI ...

Page 15: ...FABtotum Complete Manual www fabtotum com 15 ...

Page 16: ...m 16 The calibration wizard After the first setup you ll be able to use the calibration wizard either by clicking on the pop up alert or going to Maintenance first setup You can do all the wizard operations later by using the Maintenance menu ...

Page 17: ...chine unless otherwise specified the FABUI will be accessible at http 169 254 1 2 once the FABtotum is switched on and connected directly to your computer via LAN cable here some of the main features you can access once connected to the FABUI The login screen allows to secure the session to a single user Files and projcts will be locked or shared between users based on the login The dashboard is t...

Page 18: ...locate around the main page that is dynamically loaded with different contents The FABUI allows to monitor start pause and stop any manufacturing job and have it run without the need of a connected computer Il will also send an email notification when the task has been completed ...

Page 19: ...tum com 19 The project Manager is where you can upload and manage files for manufacturing 3D printing Milling Laser engraving etc The JOG menu is used to manually move the gantry and enter direct comands suggested for expert users only ...

Page 20: ...FABtotum Complete Manual www fabtotum com 20 The Updates Menu allows you to quickly install available updates directly from the internet once they become available ...

Page 21: ...required see your router settings You can also connect it to a LAN switch Note The FABtotum Personal Fabricator will continue a tasks print mill etc even if connection to the computer that started it is lost Wi Fi adapters Older units have a separate USB Wlan Adapter To set up the Wi Fi connection you need to turn off your FABtotum plug the USB Wi Fi dongle in the USB port on the back of the unit ...

Page 22: ...FABtotum Complete Manual www fabtotum com 22 First time connection ...

Page 23: ... Personal Fabricator Adress mode can be changed to Dynamic DHCP or Access Point The wireless tab allows to connect to single networks Different modes are available Access Point AP mode Available on FABtotum CORE and above Static and Disabled DNS SD allows to give your unit a Domain name in the format http NAME local note the ending On windows machines Bonjour service must be installed and running ...

Page 24: ...FABtotum Complete Manual www fabtotum com 24 These settings are used on the FABtotum to resolve external domains Do not change unless it s required by special networking needs ...

Page 25: ...he object you want to print then press the Print button Please note that you can print something from the Create menu as well Now you are in the folder with the samples choose your favourite file for example Marvin key chain then Next Be sure the working plane and the nozzle are clean close the front cover then press Continue as instructed Choose Simple homing or Auto bed leveling If your printer ...

Page 26: ...rint is completed the bed will slide and cool down Wait for the bed to reach a safe temperature The bed LEDs will turn off when the temperature is below 50 C Retrieving the 3D printed object Congratulations You just finished your first print Wait for the bed temperature to go back to safe the red LEDs will turn off when below 50 C When safe proceed to remove the print by gently pulling it out or t...

Page 27: ...r legacy Cura 1 5 support please refer to Cura 1 5 Installation Installing Cura Download and install version 2 xx of Cura at https ultimaker com en products cura software Locate Cura on your computer s Download folder install it and then execute it Installing with Windows Double click on the installer located in your download folder The setup procedure will ask you to choose if you want the progra...

Page 28: ...n versions of Cura higher than 2 6 all other versions of cura will require the user to download and install FABtotum profile packages here https github com FABtotum FAB_Configs Locate the installation path of Cura eg C Programs Cura 2 6 1 Copy the folders contained in the downloaded folder resources definitions images materials settings meshes 2 quality variants in the resources folder of the inst...

Page 29: ... it scale it rotate it mirror it and multiply it using the transformation tools 2 Select the head the material and the quality profile you want to use to print the model Eg Printing head Pro with 0 4mm nozzle in Lime green PLA in fast quality 3 You can vary the single printing settings 4 Check how the machine will perform layer by layer crucial thing to do by clicking on the view mode icon 5 and s...

Page 30: ... and user intervention between multiple prints It also allows to prepare gcodes of complete projects composed by multiple parts that can be printed in one task To switch between one mode to the other one modify the value Print sequence from Special mode section If you select the One at a time mode you will see the the printing volume reduced as size this for avoid collision between the printed obj...

Page 31: ...FABtotum Complete Manual www fabtotum com 31 ...

Page 32: ...FABtotum Complete Manual www fabtotum com 32 ...

Page 33: ...yer A bigger layer means a less precise but faster print a smaller layer means a more precise but slower print The maximum layer height is calculated in relation to the size of the nozzle You should divide the nozzle size by 2 that way you will get a good value to use as a maximum layer height Divide the nozzle size by 3 4 or 5 to get good values for very high quality prints The minimum layer heig...

Page 34: ...metric speed you will need to increase the temperature of your extruder a little or on the contrary if you are printing slowly you will need to decrease the temperature to avoid melting the material too much BED TEMPERATURE This parameter allows you to choose the temperature of the heated bed We advise you set this to 40 if using PLA and 60 if using ABS SUPPORT TYPE You should use this when printi...

Page 35: ... infill speed and outer shell speed can negatively affect printing quality We advise to set this at 75 INNER SHELL SPEED This is the speed at which the inner shell is printed This should be set at an average speed between the outer shell speed and infill printing speed If set to 0 printing speed will be used for the inner shell MINIMAL LAYER TIME This feature sets the minimum time spent for a laye...

Page 36: ...e following If you are using a Slicing Software profile be aware that it s not meant as a fool proof solution and might be tweaked a little to fit each 3D printed object Sometimes a profile will work great regardless but with the right tuning you might get better results in less time Always store the filament spool in a suitable place far away from sources of heat sunlight and humidity Make sure t...

Page 37: ...m corn 3D Printing suggested temperature 200 220 C Bed temperature 25 65 C bed can be at room temperature ABS Acrylonitrile butadiene styrene It s a common plastic polymer it s used to print strong parts Having an higher glass transition temperature could be used to make parts that are used in hotter environments 3D Printing suggested temperature 220 260 C Bed temperature 60 90 C ...

Page 38: ... fibers wood dust metallic powder can make stronger materials or with a nice finishing Printing settings depends on the polymer used Refer to the spool manufacturer or in case of FABtotum Filaments the Spool label to get the suggested printing settings Flexible Filaments Flexible filaments can be printed only with the Printing Head Pro Due to the bowden extruder setup it s in fact usually difficul...

Page 39: ...ray see below a little bit of water with a damp cloth will do Of course platform must be removed from the printer first Pay attention and avoid any water to go on electronic parts Heat Heating the bed between 40 for PLA and 60 C for ABS the printer will be able to perfectly work Very high temperatures may cause other overheating issues such as stringing or clogging of the nozzle When environmental...

Page 40: ...rstand that the main advantage of operating the Printing head pro is in it s ability to produce more reliable results regardless of the shape of the 3D file being printed the material and the way the files are arranged on the print bed In other words with less configurations it is possibile to obtain good results let s see how to get the best out of the Printing head pro by following a few advices...

Page 41: ...FABtotum Complete Manual www fabtotum com 41 Filament Management and spool loading unloading FILAMENT INSERTION FILAMENT REMOVAL ...

Page 42: ...the filament entering the head is straight and pointy cut the tip with scissors at an angle Core The CORE edition of the FABtotum Personal fabricator have a secondary hole in the spool compartment where to insert the filament if the print head pro is installed It is marked by a label in the upper rear corner of the spool compartment Use this hole to insert the filament up to the head Install the P...

Page 43: ...r upgrade Notice if your model does not feature a spool filament control that pause the print in case of spool depletion make sure to check that the remaining filament is enought for the print you are about to start or that you pause the print with enought filament remaining to allow a confortable extraction of the filament Once you are sure your unit is properly configured and upgraded follow the...

Page 44: ...thout the intervention of the user Speed Can be Beneficial especially at lower temperatures Previously with the built in bowden tube it s common to reduce speed to improve filament grip and surface details Instead with the Print Head Pro speed can produce beneficial effects on the print by reducing the time the nozzle is in contact with a particular surface reducing heat exchanged with the part Si...

Page 45: ...les but that the standard profiles usually are the best in most situations Temperature and speed can be tuned while retracts might depend on the stiffness of the material in order to reduce artifacts e g on flexible materials This way the standard profiles can be tuned for speed or for quality All slicing profiles and onboard samples have been tested with FABtotum Official Filaments but may be as ...

Page 46: ... not extruding filament This is a common problem that can have several causes Be sure that Room temperature is between 15 C and 30 C Too high temperatures will make printing hard especially if the 1 object presents many retractions Keep the nozzle and the bed temperature as low as possible Reduce retraction length as much as possibly while 2 slicing according to the object s needs You re a strictl...

Page 47: ...not the case please check the following The unit has not entered its safe mode Safe mode might trigger when an error occurs unit ambient color is red or 1 solid yellow To get back from safe mode hit the Alert button in the top right corner of the FABUI Check that the head and the bed are correctly inserted and are making proper contact with their connectors 2 Check that the temperature is at least...

Page 48: ...head on the carriage 4 Upload the nc file in Object manager 5 Now go to the Make Menu and start the job for the file you just uploaded to the FABUI 6 Mark the Origin Point with a pen on the stock material The point mustn t be exactly on the edge but 3 4 mm 7 centered For future reference the origin point is exactly the same point where the X Y and Z axis values are 0 in the CAD model By using the ...

Page 49: ...sive Wait for the milling process to end less than 10 minutes The milling bit will stop and you will be later be able to 10 retrieve the piece Make your own designs This was simple introduction on 3D Milling To make more complex design you can count on a wide array of third party CAD CAM programs that are widely available and scalable between different sectors CAD and CAM design is a wide and deep...

Page 50: ...delines for the FABtotum Personal Fabricator You ll be able to generate a gcode file nc gc gcode with the set of instructions needed to CNC Mill or Engrave your very own CAD design In the meantime check some of the community guides and tutorials on the topic ...

Page 51: ...ith their flutes while spinning Each endbit can have a different amount of cutting flutes depending on the diameter and the purpose The Number of flutes refers to the number of cutting edges that are cut into the body of the tool More flutes increases the strength of the tool but reduces space for chip flow You can cut fast with a single flute tool but the finish of a three or four flute cutter wi...

Page 52: ...ill have a range of optimal chip loads If the speed at which the tool is proceeding in the material is too much considering the speed at which the tool is removing material then the chip load is too high If the chip load is too high noise and vibrations will increase and this usually leads to damages to the endbit This leads to the concept of cutting depth Since you can determine the cutting depth...

Page 53: ... it might be better to add another pass on the same route rather than going too strong Ball End Milling Bit These are the ones needed to mill details or parts that require a nice and smooth finish They can be fluted as well and the same idea as above applies The Ball End Mill also known as Ball Nose milling bits are the best option if the shape is not squared but has curves rounded angles They wor...

Page 54: ...illing Bit V carve flutes are used to engrave v shaped paths and are usually associated with PCB engraving They are differentiated by the angle of the tip The bigger the angle the less probable is to break but it will be able to realize only bigger details ...

Page 55: ...FABtotum Complete Manual www fabtotum com 55 while smaller angles are used for fine details ...

Page 56: ... exposure could cause retinal damage Never look directly at the laser beam focusing point unless you are using the provided safety glasses Do not use sunglasses or other glasses unless specifically designed to filter out the same power level and wavelenght of this product s laser class ONLY ALLOW USE BY A RESPONSIBLE PERSON This is not a toy Children should not be permitted to use the FABtotum Per...

Page 57: ...pounds VOCs Using a laser system whether it is cutting engraving or marking catalyses VOC gas as it melts the material Moreover because these gases are toxic and have the ability to spread quickly it is important that these fumes are removed immediately Synthetic polymers include plastics like polyethylene polycarbonate polypropylene as well as synthetic rubber polyvinyl chloride PVC polyethylene ...

Page 58: ... PROTECTION Sunglasses are NOT laser protective eyewear They are not rated to ensure light attenuating protection Most sunglasses will not block enough laser light to significantly reduce hazardous exposures use only certified first party equipment or lab certified equipment rated for class 3B laser products at 405nm ...

Page 59: ...rave or cut must be changed to match the focusing distance Usually the focusing point can be found 2 to 4 mm below the tip of the laser head and it can vary during the assembly The focusing distance must therefore be determined and saved during this calibration procedure First of all let s download the calibration sample Gcode at http download fabtotum com gcodes material_test_pattern gcode and up...

Page 60: ...r jobs all at the same height In the case of assisted positioning you will be asked to manually move the part you want to laser at around 1 mm from the lower tip of the Laser Head Then after pressing ok the height will be raised automatically to match the last saved position 3 mm if this is your first time calibrating The engraving will start and end within a minute Once the process has completed ...

Page 61: ...button in the command tab At the end of each print you will be asked to save the Z height changes Change it 1 2 mm each time and test it again until you get a favorable result You can remember the height for later use or start using the Assisted calibration during the laser procedure preparation From now on the assisted calibration will return to the position saved each time ...

Page 62: ...f all we ll log in to the Online laser App in order to generate the Gcode used for laser cutting Unique username and password to log on the Laser App tool are to be found on the First setup guide sheet provided with the Laser Head Let s then follow the instructions provided in the following slideshow Click or drag and drop to select the desired image When using the online application you can Uploa...

Page 63: ... will take from a few seconds to a full minute Once the file is loaded you will be presented with the CAM interface Notice that at this time you can t see any preview unless the Gcode is Generated For this job we ll select laser engraving on wood Press Generate Gcode to see a preview ...

Page 64: ... correctly as in the original image that s because we choose a Black and White profile that only uses two colors let s change the profile to Engraving Greyscale wood and regenerate the Gcode by pressing the Regenerate Gcode button on the top right side of the page to see how it changes ...

Page 65: ... upload it in the FABUI Object manager If you made changes to the profile you can download it locally and keep it on your computer As usual go to the FABtotum address on your browser and upload the Gcode to the FABUI object manager page Then from the main Menu run Make Laser to list all available laser related files Choose the one you want to run and click next ...

Page 66: ...oceed when ready You can now calibrate the Laser Head to be on the XY origin of the file All files are created in the first carthesian quadrant so the 0 0 origin is in the bottom left corner of the drawing Jog to the desired position Once that is done you can manually or automatically level the Z height accordingly Read the instructions and choose if you want to be assisted or you keep the current...

Page 67: ...FABtotum Complete Manual www fabtotum com 67 Press the Home button and ok to proceed The job will start in a few seconds ...

Page 68: ...Now select the quality of the scan A medium quality is enough for most objects 2 Quick draft 180 pictures Low 360 pictures Medium 720 pictures High 1080 pictures Ultra 1440 pictures Remove the printing bed now you can see the A axis chuck 3 Fasten the supplied scanning plate using three scrwes and the supplied allen key 4 Fasten the object you want to scan You can use a strong double side tape or ...

Page 69: ...ct Scan eye icon Insert the name of the new object you are scanning select the scanning 1 method Probing then next to continue the scanning procedure Now you are setting the scanning parameters Select the probing area coordinates You can both select the area on 2 the image or write the coordinates In this step you can decide the quality of the scan choose one from Draft 1 Probe per square millimit...

Page 70: ...ave to scan darker objects increase the value Size 1920 1080 Number of slices 60 Download the Fabtotum Desktop server clicking Here 1 The program is stored into the SD card it s working with Windows XP or newer OS X and linux Test the connection by clicking on the Check connection 2 if the connection is working the button will turn in green color then click on Next 3 Set and connect the Fabtotum D...

Page 71: ...egardless of the physical operations to perform on each head an head must be selected and manually installed on the FABUI user interface To do so go to Maintenance Head The current installed head will be showed here with a picture and will subsequentially be shown in the top menu bar On the drop down menu select the head you wish to install and press Install The FABUI will set up the machine accor...

Page 72: ...FABtotum Complete Manual www fabtotum com 72 itself Once saved the profile can be also exported and downloaded ...

Page 73: ...d unless the fixtures holes are covered on the subtractive side to avoid any damage to the probe You will be tasked to rotate a certain set of screws located under each corner of the print bed in order to change the bed orientation In the Maintenance select Bed calibration 1 You will see the bed calibration wizard Press Start to start the process 2 Wait for your printer starts to make the measure ...

Page 74: ...FABtotum Complete Manual www fabtotum com 74 By working with the supplied allen key rotate the screws that sustain the bed as the program tells you 4 ...

Page 75: ...FABtotum Complete Manual www fabtotum com 75 Once all points are done repeat the measurement You ll receive new instructions Repeat until you see that all the 5 points are green ...

Page 76: ...FABtotum Complete Manual www fabtotum com 76 The Hybrid Bed of your FABtotum 3D printer is now calibrated ...

Page 77: ... menu select Probe calibration 1 Now you can choose the assisted calibration or fine calibration 2 Choosing the Assisted calibration will start the assisted calibration 3 Wait until the nozzle get hot when it s hot it s longer due to thermal expansion 4 Put a piece of copy paper 80 g m2 Wait for the probe to exit from its housing 5 Move the paper adjusting the height by pressing Z or Z until it ba...

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Page 79: ...form a series of tasks to allow the unit to safely insert or remove the filament from the system The task is slightly different depending on the version of the unit and installed Printing Head Please refer to the paragraph concerning each Head before proceeding IMPORTANT The correct Head must be installed using the FABUI Maintenance Head Installation procedure before proceeding with loading or unl...

Page 80: ...nt and sharpen the tip with scissors in order to facilitate entry 3 insert the filament in the Filament Hole or Filament Tube according to device version this is located near the 4 insert Filament label in one corner of the comparment Push the filament all the way up to the Head 5 Go to Maintenance Spool Load spool to start the guided procedure 6 ...

Page 81: ...the right of your FABtotum 1 cut the excess filament and sharpen the tip a slanting cut will do 2 insert the filament in the PTFE tube until you reach the feeder you can feel it last cm becomes harder and then 3 you cannot push further help the filament to be loaded and gently pull it when asked by the FABUI 4 wait until some plastic comes out melted from the nozzle 5 ...

Page 82: ...FABtotum Complete Manual www fabtotum com 82 Unloading the filament Printing Head PRO Go to Maintenance Spool Unload spool to start the guided procedure ...

Page 83: ...ding 2 tube up press Start to unload the filament 3 the filament will be extracted from the bowden tube assist gently to retrieve the leftover filament 4 Printing Head Lite V2 Hybrid Head Go to Maintenance Spool Unload spool to start the guided procedure Wait for the nozzle to reach melting temperature 1 when the temperature is reached remove the bowden by pushing on the pushfit and pulling it out...

Page 84: ... compartment on the right 4 press Start to unload the filament 5 the filament will be extracted from the bowden tube assist gently to retrieve the leftover filament 6 Notice we suggest to discard any previously used portion of the filament after it s processed into the feeder as it can be compressed and grinded during the extraction ...

Page 85: ...a result of a problematic print or clogging Before attempting a feeder cleaning we suggest to troubleshoot other possible problems on the 3D printing troubleshooting guide Symptoms of a messy feeder are filament slipping feeder clogging or filament stuck in the feeding gear This guide will help you cleaning the feeding mechanism from filament residues First Thing first unplug the FABtotum and make...

Page 86: ...sure to uninstall and remove the filament from the head BUT keep a little bit of excess filament sticking out just like in the picture in order to help yourself when reintroducing the feeder in the back panel once you are finished with the cleaning process ...

Page 87: ...FABtotum Complete Manual www fabtotum com 87 With a T8 screwdriver unscrew all the external screws leave the 3 internal untouched for now ...

Page 88: ...ABtotum Complete Manual www fabtotum com 88 Extract just a few centimeters and take a peek inside you should see the motor assembly and the motor connector With a screwdriver gently disconnect the motor ...

Page 89: ...FABtotum Complete Manual www fabtotum com 89 Now pull just a bit the cable in order to avoid to loose it inside the back panel Do not pull the cable too much ...

Page 90: ...FABtotum Complete Manual www fabtotum com 90 The feeder can now be pulled out ...

Page 91: ...m for later convenience The filament coming from the spool compartment must not be respooled at this point You should end up with a back panel with the motor cable and the excess filament sticking out Leave it this way for now and make sure those are not moved until further instructions are provided ...

Page 92: ...FABtotum Complete Manual www fabtotum com 92 Lets move back to the feeder Pushing down the feeder release lever just like in the photo now we can extract the filament ...

Page 93: ...FABtotum Complete Manual www fabtotum com 93 for better access you must remove the feeder plate by unscrewing the 3 screws Make sure to keep them safe ...

Page 94: ...FABtotum Complete Manual www fabtotum com 94 Remove the screw with a HEX driver Now you can extract the screw Look inside and extract the bearing wich was held by this screw ...

Page 95: ...FABtotum Complete Manual www fabtotum com 95 Inside you can see the feeding gear with some green filament residue ...

Page 96: ...an clean the feeding gear When you are done put back the bearing in the feeder and screw it securely but not too tightly Before putting everything back clean the filament sticking from the unit as it could have become greasy by touching the librificated leadscrew inside the back of the unit ...

Page 97: ...FABtotum Complete Manual www fabtotum com 97 by pushing the release lever on the feeder you can now insert the filament again up until the feeding gear ...

Page 98: ...otum Complete Manual www fabtotum com 98 By gently pulling the filament from the filament compartment you can retrieve the feeding tube and have it sticking in the filament compartment as it was originally ...

Page 99: ...FABtotum Complete Manual www fabtotum com 99 Now screw everything back on the feeder ...

Page 100: ...FABtotum Complete Manual www fabtotum com 100 the screw indicated by the tweezers is the shortest one of the bunch in case you wonder ...

Page 101: ...efore insert the feeder in the feeder hole in the back of the unit insert the motor cable connector on the motor and secure the connector on the clip Put it back together by screwing the external T8 screws Gently Avoid excessive torque as it can eat the plastic away ...

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Page 103: ...th a new one Regardless of the reason and the modle of the head the procedure requires the following conditions Remove the filament from the nozzle by unloading the filament Remove the head while the unit is idle and the nozzle is cold Notice we suggest to discard any previously used portion of the filament after it s processed into the feeder as it can be compressed and grinded during the extract...

Page 104: ...ual www fabtotum com 104 Printing Head PRO Gather all the parts the provided monkey wrenches a T8 screwdriver and the desired nozzle Optional metal sponge for cleaning Remove the two screws on the side with a T8 screwdriver ...

Page 105: ...FABtotum Complete Manual www fabtotum com 105 Gently remove the shield Note that the fan cable must not be pulled at any time ...

Page 106: ...otend from any plastic residue Use the two wrenches to unscrew the nozzle keep the hotend firm with one wrench and unscrew the nozzle with the other wrench just like you would normally counterclockwise Extreme force is not necessary Make sure to not hit any cable of part that could break ...

Page 107: ...y and use the wrenches only to fasten it at the end As a rule of thumb once you hit resistance the nozzle can still be screwed in for 10 20 angular degrees If the nozzle is not tight enought plastic will find a way outside the thread causing a nozzle failure and a nasty plastic overflow ...

Page 108: ...FABtotum Complete Manual www fabtotum com 108 The heat shield must be reinstalled Make sure the wires are not in the way by gently pushing them back in to the respective hole ...

Page 109: ...FABtotum Complete Manual www fabtotum com 109 Done Renstall the head with the FABUI head installation procedure load the filament and extrude some plastic or run a small print to prime the nozzle ...

Page 110: ...FABtotum Complete Manual www fabtotum com 110 ...

Page 111: ... fabtotum com 111 Printing Head Lite V2 Hybrid Head To change the nozzle on a Print Head V2 you ll only need the two Wrenches usually provided with the unit Make sure the nozzle is clean and has no dust or residues in the orifice ...

Page 112: ... com 112 With one wrench keep the hotend still right wrench in this image with the other wrench turn the nozzle counterclockwise to unscrew The nozzle should unscrew fine after a little extra force is applied to fight the initial friction ...

Page 113: ...totum Complete Manual www fabtotum com 113 You can unscrew the whole nozzle by hand once the initial friction has been overcome Make sure the final nozzle is clean and void of any dust epsecially the screw ...

Page 114: ...ewed in Once you feel some resistance you can still screw around 10 20 angular degrees more than that If the nozzle is not tight enought plastic will find a way outside the thread causing a nozzle failure and a nasty plastic overflow Renstall the head with the FABUI head installation procedure load the filament and extrude some plastic or run a small print to prime the nozzle ...

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Page 116: ...5th axis on a pole JST connector PH series 2mm connector Endstop n1 Raspi GPIO header connector Hotbed connection Emergency switch Front door safety switch YZ endstops 24v power supply Interior light output Second Extruder temp Head connector this includes milling motor control extruder 1 heat control servo control servo powering laser control power head light power probe input fan control and an ...

Page 117: ...berry Pi to the Totumduino use a custom set of G codes Please refer to the Raspberry Pi section for details on how it is done The G code interpreter on the Totumduino translates the commands into appropriate motion control actions Firmware development getting started FABlin is available at Github in https github com FABtotum FABlin If you have GitHub installed you can get the source directly by cl...

Page 118: ...efore compiling make sure you have selected the right target chip in the menu The Totumduino has an ATMEGA 1280 If you compile for another chip it won t work The Arduino IDE generates a file with the same name as the project and extension cpp hex in the temporary directory In Linux is in tmp buildNNNNNNN in windows it is usually in Windows Users me Appdata Local Temp The Arduino IDE generates one ...

Page 119: ...c 3 0 Mechanical Drawings FABtotum Grabcad mechanical https grabcad com library fabtotum 2 Electronics Electronics of the FABtotum personal Fabricator have been released on Github as well along with the software needed for each microcontroller Totumduino v10 4 schematics draft http download fabtotum com TOTUMduino schematics PDF Gerbers BOM of all parts https github com FABtotum FAB_Electronics Fi...

Page 120: ...he FABtotum Personal Fabricator through a HDB This enables to create complex interactions use actuators and sensors on top of the FABtotum Personal Fabricator All sketches require the latest development version of the FABlin You can compile it yourself from https github com FABtotum FABlin tree development or flash the precompiled hex file given in this repository For general pointers on the Head ...

Page 121: ...FABtotum Complete Manual www fabtotum com 121 ...

Page 122: ...p new functionalities Mechanical Specifications Each head is locked in place by friction with a locking mechanism built in the carriage To disengage and engage it you must push the two levers on the sides of the carriage itself The shape of the support plate of a head is crucial the locking mechanism function is to hold down the head and avoid undesired movements Electronic Specifications The carr...

Page 123: ...nd aren t used for illegal or questionable activities They comply with the mechanical electronic software safety and licensing standards outlined in this document Head Development Kit Resources You can find the Head Development Kit toolchain on the FABtotum GitHub repo https github com FABtotum ...

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