User Manual
Contents
1. Click Next on the Configuration Wizard Add new machine wizard This wizard will help you in setting up Cura for your machine 5 Under Select your machine choose Other Ex RepRap MakerBot Witbox Then click Next Select your machine What kind of machine do you have Ultimaker2 Ultimaker 2extended Ultimaker2g0 Ultimaker Original Ultimaker Original Printrbot Lulzbot TAZ E 7 The collection of anonymous usage information helps with the continued improvement of Cura This does NOT submit your models online nor gathers any privacy related information Submit anonymous usage information For full details see http wiki ultimaker com Cura stats Kossel Model A User Manual Page 9 Turn Key Innovations 6 Under Other machine information select Custom and click Next Turn Key Innovations Other machine information The following pre defined machine profiles are available Note that these profiles are not guaranteed to give good results or work at all Extra tweaks might be required If you find issues with the predefined profiles or want an extra profile Please report it at the github issue tracker O BFB DeltaBot MakerBotReplicator C Mendel Ord Prusa Mendel i3 Rigid3D RigidBot RigidBotBig Witbox Zone3d Printer julia Kossel Model A User Manual Page 10 7 Input the followi2. details several processes that periodically will need to be performed to keep your printer running like new CHANGING FILAMENT This section will guide you through the process of changing filament to allow you to replace fully consumed filament spools or change colors between prints To change the filament you must first completely remove the current filament and then install the next filament spool CAUTION The hotend will be heated to operating temperatures and can cause injury Removal 1 Turn onthe printer and preheat the hotend to the operating temperature 210 C for PLA 2 Pushup onthe extruder lever and slightly push in on the filament until it comes out of the tip of the nozzle The figure below shows the extruder lever and direction to push 3 Gently pull the filament completely out of the Bowden Tube while continuing to push up on the extruder lever Installation 1 Prep the end of the new filament by clipping it at a 45 degree angle and straighten 2 to 4 inches of the clipped end which will be inserted into the extruder Push up on the extruder lever and insert the filament into the extruder Continue to feed the filament through the extruder and the Bowden Tube until it flushes out the old filament from the nozzle 4 Release the extruder lever and you are now ready to get back to printing Extruder Lever Push Up TKI Kossel Model A User Manual Page 22 Turn Key Innovations BELT TENSIONING The printer
3. explanation of each parameter can be found below in the figure SC Machine Nozzle size mm 0 4 Retraction Speed mm s 40 0 Distance mm 4 5 Quality Initial layer thickness mm 0 3 Initial layer line width 100 Cut off abject bottom mm 0 0 Dual extrusion overlap mm 0 15 Speed Travel speed mm s 100 Bottom layer speed mm s 20 Infill speed mm s 0 0 Top bottom speed mm s 0 0 Outer shell speed mm s 0 0 Inner shell speed mm s 0 0 Cool Minimal layer time sec a Enable cooling fan TKI Kossel Model A User Manual Page 16 Turn Key Innovations Machine Nozzle size The size of the nozzle being used Retraction Speed mm s The speed at which the filament is retracted Distance mm The distance the filament is retracted This value can be raised if there is excessive residue during printing Quality Only applicable parameters discussed Initial layer thickness mm The distance between the printer bed and the nozzle for the initial printed layer Speed Only applicable parameters discussed Travel speed mm s The speed at which the hotend moves when it s not extruding filament Bottom layer speed mm s The speed at which the hotend moves when printing the first layer This value is typically set lower than the normal print speed to ensure adhesion of the first layer Individual Part Settings located at the lower right of the printer window
4. gantry to the home position Preheat PLA Sets the hotend temperature to 200 C Mair Disable Sterrers Auto Home Preheat PLA Bed Leveling Screws The bed leveling screws are used to level the printer bed The three bed leveling screws are located near the bottom of each tower D L D H L r Kossel Model A User Manual Page 7 TKI Turn Key Innovations SOFTWARE PARAMETER SETUP TKI recommends using Cura Software as the G code generation software G code is a commonly used numerical control programing language used to control the position speed and path of the 3D printer A link to the Cura software and other resources are found at our website at www tki3d com resources Note While TKI recommends using Cura for slicing and G code generation other slicing software can be used The printer parameters detailed below are a recommended for optimum performance of a TKI printer which can be used for other software The printer setup for Cura will only need to be completed once SETTING UP A PRINTER PROFILE IN CURA 1 Download and install Cura at https software ultimaker com 2 Launch the Cura program from your computer s start menu or desktop icon 3 To setup your printer select Machine gt Add new Machine Add new machine Machine settings Install default firrmware Install custom firmware TKI Kossel Model A User Manual Page 8 Turn Key Innovations 4
5. KOSSEL MODEL A USER S GUIDE TurnKey Innovations Table of Contents CONTENTS PEE e aco E cms ances te ease cerns ery ee A A E rate tsa ot aa Se alone eta EE pesca ose esate tc ator A E T R 2 COMAE RE 2 Printer Features amp D Celta elle EE 3 SOME Ai Oe Parameter EE 8 Setting Up A Printer PEO E le Sei TE 8 glate gg 13 PUNE CU Ne II CIO EE 13 Cne SOS Ee e EE 19 EP OC ee Eege 19 Puntine Tom amo D OF EE 21 er Dy EN eege 21 PAE T OOA e E E E O E A E E 22 Dae AE AV AEE EAEE ENE E A AA TEA E ES A E O T A A A 22 E tS VOU MN e E E E E 23 PEPEO O EE 24 E AE ei EE 25 Vuen Ce 26 EI B ETERS OM E 26 Check Printer Bed Lavel sgirean E EEE E S E sueeiaraate ne ceadancteageumensaaditnnes 26 TOUDE ee de 26 TKI Kossel Model A User Manual Page 1 Turn Key Innovations INTRODUCTION Congratulations If you are looking over this manual it means that you are the proud owner of a TKI Kossel Model A 3D printer which is a powerful tool that can help you unleash your creative spirt We know the frustrating non existent support that typically comes with a 3D printer Turn Key Innovations or TKI was created with the idea that everyone should have access to 3D printing and be fully supported in making ideas come to life This User Manual was assembled to provide guidance in understanding common procedures while using our 3D printer It covers everything from the basic setup you ll need to get started to the maintenance required to keep your p
6. Rotate This function allows the part to be rotated inside the printer s workable volume To rotate a model click on the rotate function in the lower left corner Select the axis of rotation by selecting and holding the desired circle around the part Drag the circle to change the orientation of the part 18 hows 11 mies DEE MA ZO Crem Kossel Model A User Manual Page 17 Turn Key Innovations Scale The scale function adjusts the dimensions of the part Click on the scale icon in the lower left corner The scale can be adjusted by a percentage or a dimension Note Cura interprets all dimensions in millimeters If the model was made using inches it will appear very small in the Cura window Simply select the part and uniformly scale it by 25 4 to restore the part to its correct size Si He Scale X i a Scale Y i Scale Z ao Size X mm Size Y mm eS Sra 150 0 Uniform scale a Mirror This function allows you to mirror the part about an axis Click on the mirror icon in the lower left corner to activate this function Select the desired axis to mirror part about Kossel Model A User Manual Page 18 Turn Key Innovations GENERATING G CODE USING CURA This section details the baseline parameters to use for generating G code in the Cura software G code is the machine language that the control the printer motors and heater Individual objects may require changing some of the parameters discussed in the pr
7. belts will occasionally need to be tightened to ensure optimum performance from your printer The belts on each tower should be tight enough to pluck gently similar to a guitar string If the belts are too tight the stepper motors will stall but if the belts are too loose they could skip a tooth on the pulley Follow the steps listed below for easy belt tensioning Note Only tighten one belt at a time to prevent the top support from dropping 1 Loosen the two screws on the top side of the tower that holds the belt that needs adjusting 2 Place your thumb under the lower screw and your pointer finger on the top of the rail Push up with the thumb until the belt is to the desired tension Tighten the two screws to secure the new position TKI Kossel Model A User Manual Page 23 Turn Key Innovations BED PREPARATION The bed preparation process ensures that the filament will stick to the printer bed This process requires 3M Scotch Blue Painters Tape and a razor blade optional 1 Remove any old tape that needs to be replaced 2 Apply the new Scotch Blue painters tape to the bed to replace the tape that was removed 3 Gently press down on the new tape to smooth out the edges Ensure there are no bubbles in the tape Use a razor blade to trim the edges of the tape to the dimensions of the bed optional TKI Kossel Model A User Manual Page 24 Turn Key Innovations BED LEVELING Bed leveling ensures that the printer bed
8. es the thickness of the outer shell of a printed part This value must be a multiple of the nozzle size For example when using a 0 4 mm nozzle a 0 8 mm shell thickness is two nozzle widths Enable Retraction This setting allows the extruder to retract the filament when it is traveling between points during a print Retracting the filament will prevent the nozzle from leaving a residue as it travels Bottom Top Thickness mm This describes the thickness of the solid bottom and top layers of a part This value must be a multiple of the layer height For example a part with a layer height of 0 2 mm will have 3 solid bottom and top layers when the input is 0 6 mm for this parameter Fill Density This describes the amount of infill that will be printed in a part Typically an infill of 20 is sufficient internal support to make a strong part Increasing the infill to 70 will make an almost solid part Click on the button to show the Expert config window In this window the top and bottom layers can be turned off For example a vase can be made by turning the solid infill top to off and setting the fill density to 0 Fill Bottom Top thickness mm 0 6 Fill Density 50 amy infil Speed and Temperature Solid infill top Bint anced benfil 50 Solid infill bottom Infill overlap 15 Printing temperature C 210 Bed temperature C 70 Ok Support Speed and Temperature Printing speed mm s This describes the n
9. eveling program See Bed Leveling section TROUBLESHOOTING The table below shows some of the most common problems experienced with 3D printer use and solutions to resolve them For more troubleshooting help visit our FAQ page www tki3d com resources If you still can t find the answer to your question please contact us by visiting www tki3d com support or call 305 928 5433 We are happy to assist you with any problem you might be having symptom Solution eae Check and tighten the belt on the tower that the layers Layers are shifting towards a tower are shifting towards Check and tighten the belt the belt tensioni Belt skipped procedure ep Cardis notreccanived by theprintet Restart the printer If the SD card is still not recognized remove and reset the SD card First try replacing the Scotch Blue Painter s Tape Next Initial Layer is not sticking check the bed level Finally a thin layer of Elmer s glue glue stick only can be applied for maximum adhesion Ensure the filament is feeding correctly and being pushed into the nozzle from the extruder Next verify the nozzle temperature is correctly set between 195 210 C Plastic is not extruding from the nozzle TKI Kossel Model A User Manual Page 26 Turn Key Innovations
10. evious sections to obtain the desired quality and speed STEP BY STEP PROCESS 1 Verify that Kossel is selected under the Machine tab File Tools Machine Expert Help Add new machine Layer height Machine settings Install default firmware Install custom firmware 2 Load the desired model file the file must be in an STL format by clicking on the Load icon in the top left of the print window LOER TKI Kossel Model A User Manual Page 19 Turn Key Innovations 3 Once the model has loaded reposition the part to the desired location and orientation on the printer bed To reposition the model click hold and drag it to the desired location in the printer s volume identified by the shaded blue area Note the orientation will determine if Support structure is required Reference the Printing Settings Definitions section for help manipulating the part 18 houwe 11 minus 7ES2 MEE 250 Chem 4 Verify and adjust any of the Basic and Advanced printing settings See the Printer Settings Definitions section for more detailed information on these settings Note Hovering the mouse over a setting will bring up a description of how the setting will affect the print 5 Insert the SD card into your computer Click the SD card icon in the top left of the print window to save your files to the SD card Your files are now loaded onto the SD card and you are now ready to print The ne
11. g the printer bed A good way to check for clearance between the bed and the nozzle is by inserting a piece of paper between the bed and the nozzle If there is a slight drag on the paper then the nozzle is in the correct position 5 Repeat step 4 as the program moves the nozzle to the remaining two towers Note For the first print after the bed leveling process it is important to watch the first layer to ensure it adheres to the bed correctly You may have to adjust the bed leveling screws during this first layer to optimize the bed position TKI Kossel Model A User Manual Page 25 Turn Key Innovations MAINTENANCE Regular maintenance is important for accurate worry free printing Perform these simple steps to optimize your printing experience CHECK BELT TENSION Every few weeks it is important to make sure the belts are the correct tension as they may stretch out during use Follow the instructions in the Belt Tension section if you suspect a belt need to be tighten The belts should be checked every few weeks for casual use and every week if the printer is used daily Checking the belt tension regularly will help prevent print failures and or damage to the printer CHECK PRINTER BED LEVEL Verify the bed is level every 5 6 prints In addition the bed should be leveled after replacing the Scotch Blue Painter s Tape on the bed or if during removal of a part you feel the bed may have shifted Check the bed level by running the bed l
12. individual print These settings include print speed fill density shell thickness layer height and other advanced settings This section should be used as a guide to the different settings that may need to be changed and which settings should remain constant depending on your desired results PRINTING SETTING DEFINITIONS Basic Settings The parameters that are frequently adjusted to obtain the desire results for an individual part are found under the Basic Setting tab in Cura The figure below shows the typical Basic tab settings for most prints A detailed explanation of each parameter can be found below in the figure File Tools Machine Expert Help Advanced Plugins Start End GCode Quality Layer height mm 0 2 Shell thickness mm 0 8 Enable retraction H Bottom Top thickness mm 0 6 Fill Density 3 20 Speed and Temperature Printing temperature C 210 Support support type None W on Platform adhesion type None M ee Filament Diameter mm 1 75 Flow 9 100 TKI Kossel Model A User Manual Page 13 Turn Key Innovations Quality Layer Height mm This describes the Z distance between each layer For a 0 4 mm nozzle the average quality can be achieved with a layer height of 0 2 mm Average quality is sufficient for most prints except for items with fine details If a higher resolution is desired the layer height setting can be changed to 0 15 mm or 0 1 mm Shell Thickness mm This describ
13. is perpendicular to the nozzle An unleveled bed will result in poor adhesion to the bed and poor print quality The bed is leveled by adjusting the three bed leveling screws which allows for adjustment of the bed during printing of the first layer if required The goal during the bed leveling process is to have the nozzle 0 1 mm above the bed when it prints the first layer of your part To simplify the bed leveling process we have created a G code program that will aid you in completing the leveling process in less than 5 minutes This bed leveling program can be downloaded at www tki3d com program bedlevel This program moves the nozzle adjacent to each tower and brings it to the zero position just above the bed The nozzle will hold this positon for 20 seconds to allow the user to adjust the level of the bed at each tower The LCD screen will display a countdown timer to prompt you when the nozzle is going to move to the next tower location 1 Download the bed leveling G code onto an SD card www tki3d com program bedlevel 2 Ensure the nozzle is at room temperature and disconnect the power to the hotend fan by disconnecting the connector before beginning the bed leveling process 3 Use the control knob to navigate to the bed leveling program on the SD card Bedlevel gcode and select run Adjust the bed leveling screw next to the first tower when the nozzle is adjacent to the first tower to the point that the nozzle is almost touchin
14. nd hotend will be off unless you use the power switch Power Jack The power jack is where the power supply plugs into on the right side of the printer LCD Screen The LCD screen is the user interface that controls the printer To the right of the LCD screen is a speaker top control knob center and emergency stop button bottom Press in the control knob to select a function or rotate it to scroll through the menu options If the stop button is pressed the machine must be power cycled for functionality to return Info Screen The info screen is the home screen display for the LCD screen Hotend Temperature and Target Speaker X Y Z Position A 1370 Feed Rate X H Y H 2606 GN Control Knob eae each m190 SD o Print Completion TKI H j A Read Elapsed Time Stop Button Machine Status Main Menu Press in on the control knob from the info screen to navigate to the Main Menu Info Screen Returns to the home screen Prepare Option to setup a print preheat hotend auto home cool down etc Control Change printer firmware settings temperature motion and restore failsafe Print From SD Select a file to be printed Info screen Prerare Control Print from SD TKI Kossel Model A User Manual Page 6 Turn Key Innovations Prepare You can reach this from the Main Menu The two common features that will be used on this screen are Auto Home Zeros the machine and returns the
15. ng values into the RepRap custom settings Machine name Machine width X mm Machine depth Y mm Machine height z mm Nozzle size mm Heated bed Bed center is 0 0 0 RoStock TKI Turn Key Innovations Machine depth Y mm Machine height Z mm Nozzle size mm Heated bed Custom RepRap information RepRap machines can be vastly different so here you can set your own settings Be sure to review the default profile before running it on your machine ou like a default profile for your machine added aaissue on github Kossel 200 200 240 0 4 O Bed center is 0 0 0 RoStock Kossel Model A User Manual Page 11 8 Goto Machine gt Machine Setting Install default firrmware Install custom firmware 9 Verify the following values in the table under Machine settings and click Ok Machine settings Printer head size E Steps per Imm filament 0 Head size towards X min mm Maximum width mm Head size towards Y min mm Maximum depth mm Head size towards X max mm 12 Maximum height mm 24 Head size towards Y max mm 10 si Extruder count Printer gantry height mm Heated bed Machine center 0 0 Build area shape GCode Flavor Your TKI printer profile has now successfully been added to Cura TKI Kossel Model A User Manual Page 12 Turn Key Innovations PRINTING SETTINGS Printing settings determine the characteristics for an
16. ozzle speed while printing Printing temperature C This describes the temperature of the hotend while printing This value can be adjusted depending on the material being used PLA should be set between 200 C 210 C Bed Temperature C The TKI Kossel Model A does not have a heated bed This value can be ignored for the TKI firmware TKI Kossel Model A User Manual Page 14 Turn Key Innovations Support Support type Support material is used when a model s geometry exceeds 60 degrees from the vertical for a part feature There are three support type options 1 None which should be used when there are no features that exceed 60 degrees 2 Touching buildplate which will add support material everywhere that a feature exceeds the 60 degree requirement as long as the structure overhangs the printer bed and not another section of the part and 3 Everywhere which will add support material to all features that exceed the 60 degree requirement including overhangs that are over another section of the part Clicking on the button will bring up the Expert config window where additional features can be edited Support type C E Expert config None Platform adhesion type Touching buildplate Support Everywhere Shudhire twee Gees y Filament y Diameter mm 1 75 Overhang angle for support deg 60 Flow 100 Fill amount 15 Distance X Y mm 0 7 Distance Z mm 0 15 Ok Platform adhesion type The
17. platform adhesion setting is used to prevent the part from warping or peeling off the printer bed If the printer bed is properly prepared using blue painters tape the platform adhesion parameter should not be needed using PLA filament There are two types of platform adhesion 1 Brim which is a flat single layer that extends past the footprint of the part to extend the adhesion area and 2 Raft which is a support structure under a print that helps secure it to the bed A skirt is the initial pass that outlines a part to prepare the hotend for printing Support 3 ge Expert config Support type None Y Platform adhesion type Skirt Line count 1 Filament Start distance mm 3 0 Diameter mm Minimal length mm 150 0 Flow 100 Ok TKI Kossel Model A User Manual Page 15 Turn Key Innovations Filament Diameter mm This describes the diameter of the filament being used This value should be adjusted to the standard TKI filament of 1 75 mm Flow This describes the amount of filament being pushed through the nozzle This value can be adjusted to optimize the quality of the print A typical value is between 90 100 for your TKI printer If excessive plastic is being extruded reduce this value by 5 Advanced Settings Defined The Advanced tab parameters are printer specific and most will only need to be adjusted once The figure below shows the typical advanced tab settings for your TKI printer A detailed
18. rinter performing like new We look forward to helping you succeed in the exciting world of 3D printing and giving you everything you need to unlock your innovation Reliably yours Rob and Jordan CONTACT TKI We understand that manual only covers the basics of your TKI printer so if at any time you need more assistance visit our Support page atwww tki3d com support to send us a message or give us a Call at 305 928 5433 and we will be happy to address your question or concern TKI Kossel Model A User Manual Page 2 Turn Key Innovations PRINTER FEATURES amp DEFINITIONS The figure below shows the features of the TKI Kossel Model A printer You can reference this graphic for clarification of printer parts mentioned in this manual oe Ga ar Sei Carriage Tower Bowden Tube Gantry Hotend amp Nozzle Belt Filament Spool Extruder Printer Bed SD Card Slot IOS Power Switch Ger and Jack Selection Knob Stop Button Kossel Model A User Manual Page 3 Turn Key Innovations Extruder The extruder pushes the filament from the spool into the hotend of the gantry Components of the extruder Drive Gear Red feeds the filament to the hotend Extruder Lever Blue applies force so the drive gear can grip the filament Bowden Tube quick disconnect Green attaches the Bowden Tube to the Extruder 2 WW kb ag Bowden Tube The Bowden Tube is the small tube that runs from the extruder
19. to the hotend Nozzle The nozzle is the brass fitting below the heater block that the plastic extrudes from Hotend The hotend melts the filament as it gets pushed through the Bowden Tube by the Extruder It is comprised of the following parts TKI Kossel Model A User Manual Page 4 Turn Key Innovations Heat Sink j P iJ Hotend Fan Throat Heater Block Thermistor Heater Core SD Card Slot The SD card slot at the front of the printer allows you to insert an SD card to run the machine code and print without connecting to a computer X Y Z Towers Looking at the front of the printer facing the LCD screen the left tower is the X the right tower is the Y and the back tower is the Z These designations are used when leveling the bed and during troubleshooting procedures Carriage There is a carriage located on each linear rail which is attached to each tower The cumulative position of each of the three carriages determines the position of the gantry Attached to the carriage are the connection rods that support the gantry Gantry The gantry is the hotend and its components It is connected to the three carriages by the connection rods TKI Kossel Model A User Manual Page 5 Turn Key Innovations Power Switch The power switch controls the power of the printer and is located on the right side of the machine If the printer is connected to a computer then the LCD screen will be on but the stepper motors a
20. xt section will detail the steps to print directly from your SD card TKI Kossel Model A User Manual Page 20 Turn Key Innovations PRINTING FROM AN SD CARD The Kossel Model A can read the G code of your print file directly from an SD card This allows the machine to run without being connected to a computer STEP BY STEP PROCESS 1 Insert the SD card into the printer The SD card slot is located next to the print bed and to the right of the LCD screen Turn on the printer or restart if required When an SD card is installed the machine must be restarted to recognize the card Press the control knob once to reach the Main Menu Scroll down to Print from SD and press the control knob again to select this function Use the control knob to scroll to the desired print file Newly added files will usually appear at the bottom of the file list Press the control knob to select the file you want to print The printer will heat the hotend to operating temperature and auto home the gantry Watch the first layer being printed to ensure that the bed is at the correct height and properly leveled If the bed appears to be at the wrong level stop the printing process and relevel the bed Once printing is completed the gantry will return to the home position Allow the hotend to reach room temperature Then remove your finished masterpiece TKI Kossel Model A User Manual Page 21 Turn Key Innovations PRINTER OPERATION This section
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