Preciso M200 Manual
Contents
1. 3 3 5 Internal Cleaning Clean the machine daily to prevent dust and chips from accumulating in the guiding rails and other sensitive components of the system as well as the vacuum dust collection chamber and inside of the front cover Do not use compressed air for this as air can blow the dust into the guiding rails Usea vacuum cleaner to remove all dust In addition please check the air filter for moisture 3 3 6 External Cleaning Housing The cleaning of powder coated surfaces should generally be done with a soft dry cloth If dirt cannot be removed with a soft dry cloth the cloth can be moistened If necessary a PH neutral cleaner can be used Any contact between the powder coatings and alkaline or acid substances must be avoided These will damage the housing of the machine If the use of a special cleaner is necessary it is recommended to test the cleaner on a small surface area of the housing first Please pay special attention to the affixed machine labels They are especially sensitive to intensive rubbing and harsh detergents will make them peel off 3 3 7 Additional Preventative Maintenance Wires and Electircal Plug Connections Description Check for loose wires and reset all electrical plug connections Requires removal of outside housing Tool 4 mm Hex wrench Duration 5 minutes Frequency Every 12 months or 1200 hours Chapter 4 Spindle 4 1 High Frequency Jager Spindle 4 1 1 Features Nomi2. Duration Approximately 5 minutes Frequency Once a week Spindle Maintenance Procedure e Start the control software CNC and choose the control panel In order to execute spindle maintenance click on the Spindle Maintenance button The spindle will then move into a position that is easily accessible ny e In order to unscrew the collet chuck place the calibration tool inside collet then the collet wrench over the collet It is a round tool with a Hex hole in the middle Next turn the collet wrench clockwise to unscrew the collet chuck completely Clean the internal cone of the shaft with the felt cone of the maintenance set The internal cone must be free of dirt Clean the collet chuck with a clean soft round brush preferably the soft brush from the spindle maintenance set After cleaning apply a light grease film on the taper area of the collet chuck A CAUTION Use caution to ensure that no grease or oil enter inside the collet chuck e Reinsert the collet chuck and tighten it hand tight Use same tools as for removal e Weekly or every 40 hours maintenance is required for the collet chuck to ensure proper function of the Preciso M200 A CAUTION Grease only the outside of the collet and use only the grease provided in the service kit No other grease or oil should be used and only the outside of the collet should receive grease 4 2 High Frequency 4 2 1 Automatic Tool Change Tool changes are carried o
3. The Preciso M200 is designed to work seamlessly with Jensen authorized CAM software packages including the Preciso and Jensen CAMSs The integrated high frequency Jager Spindle admits high feed rates Due to the precision bearing of the spindle axis a top surface quality of the milled material is achieved The rotary axis with collet chuck is equipped with a harmonic drive which offers highest true running accuracy for processing restorations around their full circumference The automatic measurement of the rotary axis and the automatic axis compensation ensure consistently high precision during the milling process 1 2 Technical Data 1 2 1 Basic System Dimensions W D H 15 74 x 15 x 15 98 Four Axis Mechanism Positioning Range BAR SS KIE AD Precise ball screw spindles for the 3 linear axes with 4mm lead Motor resolutions lt 1 um Repetition accuracy 0 005mm Complete enclosing of the working area with a closable front cover front lid switch and safety interlock 1 2 2 Rotary Axis Rotary axis free from backlash with harmonic drive Circular spline diameter 40mm Automatic measurement of rotary axis and automatic axis compensation for highly precise results Milling area illumination Prepared dust extraction through openings in the rear panel of the milling area as well as a hose connection sleeve and switching output at the side of the housing Req
4. shown below may be needed b TPS to adapt the mill fitting to your air compressor hose These should be readily available at your local hardware store Please NOTE An Air Drier is highly recommended 2 4 1 Compressed Air Supply The packaging contents of the Preciso M200 include a service unit for the compressed air supply The integrated water separator with its 5um superfine filter is used to prevent air that is contaminated with humidity or dust particles from reaching the bearings on the spindle It is important to note the sensitivity of the spindle bearings The compressor must supply dry and oil free air according to ISO 8573 1 as the water separator is only able to filter small amounts Compressed air which is not dry may lead to damage of the spindle bearings and to electrical defects Air purity according to ISO 8573 1 Solid Impurities Class 3 Filter grade at least 5 um for solids Water Content Class 4 Maximum pressure dew point 37 F Total Oil Content Class 5 Maximum oil content 1 mg m3 The compressed air connection must deliver at least 7 bar continuously 2 4 2 Connecting the Compressed Air The service unit has to be mounted in an upright position directly on the side of the mill housing Remove the blind screws from the housing and affix the service unit with its cylinder head screws to the machine Connect your compressed air supply to the service unit using a standard compressed air connection plug The m
5. Preciso M200 Mill Jensen Dental 50 Stillman Rd North Haven CT 06473 Lava JENSEN Materials Approved DENTAL Table of Contents General Information 1 1 The Manual 1 2 Technical Data 1 3 CAM Software 1 4 Package Contents 2 Installation 2 1 Placement 2 2 Setting Up the Machine 2 3 Components of the Machine 2 4 Compressed Air 2 5 Dust Extraction 2 6 Installing the CNC Application Running the System 3 1 Operation 3 2 Safety 3 3 Maintenance and Cleaning Spindle 4 1 High Frequency Jager Spindle 4 2 High Frequency 4 3 Tool Parameters Chapter 1 General Information Read this manual carefully before connecting and starting the Preciso M200 As with all technical systems proper function and safety can only be guaranteed for this unit if both generally applicable safety precautions and the specific safety information in these instructions are observed 1 1 The Manual This manual will enable you to properly and safely use the Preciso M200 mill and its accessories We will highlight specific sources of danger that may come from the Preciso M200 and emphasize the correct use of the system This manual should not be discarded for as long as you re using the Preciso M200 The Characteristics of the Preciso M200 The Preciso M200 is a desktop milling machine for dental restorations The compact desktop housing contains a four axis mechanism a high frequency Jager Spindle as well as an integrated controller
6. achine will be connected via the thin blue hose on the right side of the service unit 2 4 3 Settings After you have connected your compressor too the service unit please confirm that the manometer shows a pressure of 7 bar If the manometer shows a pressure other than 7 bar you must adjust the knob on the service unit by pulling it up slightly to unlock By turning the knob toward the symbol you can increase un the pressure turning toward the symbol will decrease the pressure Once you have completed the adjustment of the manometer be sure to press the knob back down to prevent any lock adjustment 2 4 4 Maintenance Routinely check whether liquid has accumulated in the water separator and if so empty it by opening the discharging screw located at the bottom of the service unit The condensation will be blown out under pressure from the compressed air In case of dirt accumulation the micro filter element in the water separator must be cleaned or changed A clogged filter element my cause a loss of air pressure Disconnect the air pressure by unplugging the main compressed air supply hose Once you disconnect the air pressure you will have the ability to unscrew and remove the beaker After you have unscrewed the supporting spring from under the filter element you can pull out the filter element Spare parts such as new filter elements can be purchased through Jensen Technical Support 2 5 Dust Extraction Th
7. cro filter for processing zirconium The Preciso M200 must be operated with the front door closed Before starting to work with the Preciso M200 check for possible damage Ensure that all safety devices and their components are in place and in good working order Damaged safety devices or parts thereof must if not stated otherwise in the User Manual be repaired or replaced by authorized service personnel Contact Jensen Technical Support at 800 528 5531 While working with the Preciso M200 in maintenance mode or when the front door is open the operator and all persons within reach of the machine must wear protective safety glasses Do not let the machine run unobserved If using external CAM software loud noises may occur from certain modes of work All persons within reach of the machine must wear ear protection Loud noise is often a sign for inappropriate operating circumstances Ensure that the work piece is fixed properly and check the values for rotational speed cutting depth feed rate tool endurance and the material The safety devices of the machine are designed for practical use It is prohibited to circumvent or tamper with any preset safety devices or settings It is imperative to confirm that the tools are loaded straight in the changing station and that they are placed in the positions indicated in the manufacturing software A damaged cable must be removed from operation An original spare cable must be used to rep
8. e Preciso M200 and the High Frequency Jager Spindle are prepared for dust extraction with an external industrial vacuum cleaner or suction unit sold separately The machine is equipped with openings in the rear panel of the milling area a hose connection sleeve and a switching output at the side of the housing A minimum suction power of 100 l min and a Class M dust filter are required The Preciso M200 is equipped with an under pressure sensor for monitoring dust extraction Milling is only possible if the dust extraction unit is switched on and the required under pressure level has been reached These preventative measures are in place to prevent milling dust from entering into the mechanics and electronics of the machine A CAUTION Remember that your vacuum cleaner must be suitable for this application micro filter for processing hazardous materials etc Empty the dust bag of the vacuum regularly and replace the fine particle filter at regular intervals if it s so equipped In all cases follow the instructions and safety regulations given by the manufacturer of your vacuum cleaner The vacuum cleaner is connected at the side of the machine housing An illustration of these connections is provided in Chapter 2 3 Setting Up The Machine The machine comes with a DIN4 connection for Auto start and stop of vacuum This connection is located on the left side of the machine See Chapter 2 3 The plug should be available fr
9. ections are limited in length to an estimated 15 feet If you plan to locate Preciso M200 within 15 feet of the controlling PC but farther than the provided USB cable allows you will need to obtain a USB cable of suitable length For Ethernet connection options for distances longer than 15ft please reference your mill quick start guide 2 2 Setting Up The Machine cont Contact your computer supplies provider to access these items Insert the suction hose with the hose connection into the connection sleeve of the machine See also Chapter 2 5 Insert the dongle into a USB port of the manufacturing computer Plug the power supply cord into the machine Plug the machine power cord in a separately fused circuit current and ensure that no devices are connected that cause heavy voltage fluctuation when switched on air compressor suction unit A CAUTION Before starting Preciso M200 make sure that the front cover is closed Plug the DIN4 cable for Autopower of Vacuum if your suction unit has this feature 2 3 Components of the Machine The High Frequency Jager Spindle needs compressed air to operate the pneumatic collet chuck in conjunction with automated tool changing It also uses the compressed air to prevent particles from getting into the spindle The air consumption of the machine is at a maximum of 80l min The air pressure inlet connector is a style uncommon in the United i States A 1 4 Male Threaded Coupler
10. intenance and Cleaning 3 3 1 Collet Chuck It is important to clean the collet chuck of the machining spindle once a week and heed follow the instruction provided in Chapter 4 Spindle 3 3 2 Fixing Device It is important to clean the frame holder at regular intervals with a soft brush and a vacuum cleaner 3 3 3 Calibration The machine is already calibrated on delivery As long as your milling results are accurate there is no need for additional calibration If your milling should become inaccurate a calibration could become necessary If a recalibration becomes necessary please contact the Jensen Dental Technical Support Team 800 528 5531 for assistance The measuring key is a consumable item Wear is caused by the contact between the tool and measuring key and effects an indentation in the aluminum The deeper the indentation the greater the length L of different tools Due to dust and chipping on the measuring key the spindle needs to apply force until the electrical contact between the tool and the measuring key is established Keep the measuring key clean to minimize wear It is sufficient to wipe the measuring key once with your finger before starting a milling job It is important to ensure that the measuring key is always kept clean and that the electrical contact for the tool length detection is possible For restoring the measuring key please contact the Jensen Dental Technical Support Team at 800 528 5531
11. lace it To order additional spare cables please contact the Jensen Dental Technical Support Team 800 528 5531 3 2 2 1 High Frequency Jager Spindle For operation and maintenance of the high frequency Jager Spindle follow the below guidelines to prevent accidents Improper handling or operations differing from the intended use of the machine greatly diminish the safety to the operator and the safe operations of the machine Do not use unbalanced tools at high rotational speeds This applies to the single tooth cutters and engravers Such an imbalance will generate loud running noise and will put a strain on the ball bearing of the spindle Do not use tools with cutting edge diameters that exceed the shank diameter Please be aware of the information about the choice of tools and adjustment of tool parameters outlined in Chapter 4 2 2 A CAUTION While working in maintenance mode do not put your hand into the range of the rotating tools 3 2 2 2 Fixing Devices Always ensure and check that the tool and frames are tightly fastened before starting to mill Due to the high forces that act on the frame improperly fixed rods and frames may loosen In general you should start with a relatively small cutting depth and increase it in small steps A higher abrasive rate in milling works lead to stronger forces acting on the work piece If these forces exceed the fixing power of the fastening device the work piece may come loose 3 3 Ma
12. mm drill for tool changer inserts 6 foot USB connection cable USB dongle with CNC software Preciso M200 Manual Quick start manual Chapter 2 Installation 2 1 Placement The Preciso M200 requires a source of clean dry compressed air The environment must be free of dust oil and moisture The surface must be sturdy and even The room temperature should be between 64 F and 77 F as this is the best range for the gliding lubricants used in the mill The air requirements are a minimum of 80 liters per minute non condensing The Preciso M200 has a voltage switching power supply For connecting the Preciso M200 a power supply with 80 240 VAC and 50 60 Hz is needed Please exercise caution and DO NOT connect the Preciso M200 to the same circuit with other insufficiently shielded devices as these could electrically interfere with the mill s controller and cause a system failure 2 2 Setting Up The Machine Carefully open and unwrap the box and remove the foam inserts on each side of the Preciso M200 Remove mill from box and place in predetermined location See paragraph 2 1 Connect the included service unit to your compressor using the standard compressed air connection plug and to the machine using the 6mm connection hose Mount the service unit at the side of the mill housing Connect the existing or providing manufacturing computer to the mill using USB cable The Preciso M200 packaged with a 6 foot USB cable USB conn
13. nal power under continuous load S1 170 Watt Maximal power P maximum 240 Watt Rotational speed range 5 000 60 000 RPM Collet chuck 3mm Precision shaft with double bearing Quick chucking device for manual tool change A CAUTION The high frequency Jager Spindle is a high precision device that should never be subject to any unnecessary movement 4 1 2 Manual Tool Change Manual tool change is done through the control software Please note that only Jensen authorized tools may be used in your M200 Procedure Start the control software and choose the control panel In order to execute a manual tool change click on the Spindle Maintenance button The spindle will move into a position that is easily accessible The system will prompt you about opening collet click ok If system doesn t open collet click on the collet chuck button to open Place tool in collet and click collet chuck button again to close 4 1 3 Maintenance and Cleaning To guarantee a safe and precise operation of the high frequency Jager Spindle the collet chuck has to be cleaned regularly No grease or oil may enter inside the collet chuck The inside cone of the spindle shaft collet and the tool shafts must be free from oil grease and dust to ensure optimal tension force DO NOT use compressed air to clean the spindle as dust could be blown into the sensitive bearing area Tool Clean and soft cloth soft brush spindle maintenance set
14. om your vacuum supplier 2 6 Installing the CNC Application Connect and start your manufacturing computer Insert the dongle into the USB port of this computer Start setup exe and follow the instructions in the installation program For additional information please reference your CAM software manual For additional information please reference the Software Manual A CAUTION e Installing and operating the software and the Preciso M200 is only possible with the CNC Dongle which is separate from your CAM application Please contact Jensen Technical Support to install the CAM software on your PC if it has not been installed already For additional information please visit www PrecisoEducation com Chapter 3 Running The System 3 1 Operation 90 240VAC After you have ensured that all cables have been connected and TE the front cover is closed you can turn on the Preciso M200 by using s the power switch on the left side of the housing 5 The Preciso M200 machine is equipped with a safety contact and safety interlock at the front cover During milling the front cover must remain closed The Preciso M200 front cover comes locked Before proceeding you will need to unlock Remove the blind plug at the left side of the housing unlock the door by turning the Yellow Emergency Key counterclockwise Now you can open the front cover Reattach the blind plug The Preciso M200 is already calibrated on delivery As long as yo
15. uirements External vacuum cleaner Under pressure sensor for monitoring the dust extraction milling is only possible with activated dust extraction Weight 99 2lbs Integrated frame holder for 3M ESPE Lava and Jensen Materials 6 automated tool change stations 1 2 3 High Frequency Jager Spindle e Look ahead feature for continuous e Four axis microstep controller velocity along milling path e Simultaneous interpolation of 4 axes e Speed limitations e Micro step operations ensures reliability and accuracy during the milling process e Minimal feed rate 0 3 mm s e High processing speed due to e Maximum feed rate 55 mm s exponential acceleration ramps and automatic change over to full step mode 1 3 CAM Software The Preciso M200 CAM Software is designed to make the importation of your CAD design files effortless For operations specific to the CAM design software such as file importation and nesting please reference the software instructions for your specific CAM 1 4 Package Contents The Preciso M200 110V power supply cord 2 Yellow Keys for emergency release of the front cover Service unit for compressed air connection plus 6mm hose Spindle service set for collet chuck maintenance Hose connection for external vacuum cleaner 2 5mm hexagon socket screw key for exchanging Frames Calibration plate and measuring pin Replacement tool measuring plate 1 pair of rubber tool changer inserts 12 8
16. ur milling results are correct there is no need for a further calibration If your results should become inaccurate a calibration could become necessary In such a case please contact a Jensen Technical Support Team for remote assistance at 800 528 5531 before recalibrating the machine 3 2 Safety 3 2 1 Intended Use of The Preciso M200 The Preciso M200 has been designed for milling crown and bridge restorations inlays onlays and veneers The Preciso M200 is calibrated and warrantied for processing zirconia wax nanocomposites and most synthetic plastics e g PMMA It is important to note that you should NOT use too high values for the cutting depth and the rate of feed Doing so could lead to the work piece ripping loose or the tool becoming jammed This can cause irreversible damage to the machine and or the high frequency Jager Spindle By using the Preciso CAM Software the software automatically calculates the optimal parameters 3 2 2 Safety and Protective Regulations All operators of the Preciso M200 must be trained in the proper handling of the machine and in the following safety and protective regulations The working place must be kept clean and orderly A clean and orderly working environment will help to minimize accidents Keep children and animals away from the Preciso M200 Only mill with activated dust extraction Please keep in mind that your vacuum cleaner must be suitable for this application mi
17. ut automatically using the mill s 6 tool magazine A frequency converter is integrated in the CAM Impression thus all spindle features are controlled by the production software Only tools with a shank diameter of 3mm should be used The cutting edge diameter may be 3mm maximum Tool Dimensions For storing the tool in the tool changing station a 3mm shank with a length of at least 6mm is required All tools should have a stop ring installed on shank A CAUTION Install only retaining rings according to DIN 471 A3 4 3 Tool Parameters In the Preciso M200 CAM software all processing and tool parameters are already preset Jensen reserves the right to void your warranty on the mill and materials used if you use another CAM software It is important to follow all safety and protective regulations outlined in this manual Get a Team Preciso support strategy customized for you by calling 1 800 243 2000 or visit precisodental com 800 243 2000 www jensendental com J E N S E N DENTAL REV 0
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