dental milling machines and dental tools - · pdf filedental milling machines and dental tools...

Dental Milling Machinesand Dental Tools

For Stable Bridges

Lava™ Ultimate

CoCr

Glass Ceramics

PMMA

ZrO2

Com- posites

5Axes

8Blanks

DryWet &

vhf camfacture AGSince 1988, vhf camfacture AG has been a manufactur-er of highly precise, fast and robust CNC milling ma-chines. Possible fields of application extend from micro-machining to large-volume mould making. Since 2008, vhf has successfully taken part in the dental market with its micro-machining systems of the Impression line.

The company has its seat in Ammerbuch which is ap-proximately 30 kilometres southwest of Stuttgart. At the moment vhf has a staff of more than 170 employees and has a manufacturing capacity of 1,500 machines per year.

Distribution via resellers onlyvhf milling machines for dental technology are exclusively available via OEM partners and the specialised trade. vhf does not directly sell to end customers – hence we are not competing with you. As vhf reseller you sell the machines in the classic vhf look in your respective sales area. As OEM partner you sell the machines in your own design and can distribute them world-wide.

The OEM machines are real masters of disguise: Depending on the pur-chase quantity, OEM systems either get a different-coloured coating or even an individual housing construction. Furthermore, in an OEM partner-ship individual agreements are possible. In any case, confidentiality is very important for us in such a partnership – each OEM partner may decide whether their company is indicated on the vhf reseller list or not.

Out of the boxvhf’s dental milling machines impress by their ex-tremely compact construction. Packed in a stable carrier box you deliver the machine to your customer. The necessary accessories are also inside the box. At the customer’s place you only have to unpack every-thing and set it up – no complex installation or as-sembly works are necessary. You connect all cables of the machine and the computer, install the software and you are ready to start. And in case of service this process also works the other way round.

2 Dental Milling Machines

Made inGermany

The secret of success...With more than 25 years of experience in machine-building and the development of CAM software as well as with the competence of our partners from the vhf group, we achieve a high in-house production depth. So the complete electron-ics originate from the vhf elektronik GmbH and all milling tools are developed and produced by the vhf tools AG.

The vhf camfacture AG does not only all (technical) design works, we also manufacture the machine parts for the dental systems on vhf industrial milling machines. In our final assem-bly, the machines are built together and tested extensively. It is this high in-house production depth that makes the sensational market price of the vhf machines possible – and you as our partner can realize top profit margins though.

Service friendlinessAs our reseller you are responsible for the technical support of the end customers. In order to facilitate your work, the ma-chines are service-friendly constructed. Moreover they have some features which reduce the service effort. One example is the integrated working area sealing air concept, which pro-tects the mechanics against dust and chippings and thus also the investment of your customer. So we are able to give a 24 months bring-in warranty even on machines which mill zirco-nium every day.

Your technicians get comprehensive instruction and training courses by vhf. Of course we offer you excellent second level support and help your technicians with words and deeds in the case that they feel at a loss.

Efficient operationDue to the Direct-Mill function which is integrated in the DentalCAM software, you save plenty of time. While the calculation of the milling paths is still run-ning, the milling process will be started. All further calculations will proceed in the background.

Additionally, the machining comfort can be consid-erably increased by different degrees of automatiza-tion, for instance with an automatic blank changer for up to eight blanks. And finally a special highlight: Due to the rock-solid construction and their high manufacturing quality, you can process non-pre-cious alloys on CoCr basis with all vhf dental milling machines!

3Dental Milling Machines

Your advantages

Four-axis machining system CAM 4-K4 Impression with auto-matic tool changer for six tools.

■ 4 simultaneously working axes ■ the compact table housing finds place eve-

rywhere, its footprint only amounts to 400 x 385 mm

■ protection of the danger zone during the machining process due to an automatic safe-ty interlock at the front cover

■ protection of the mechanics against dust and chippings as well as reduced wearing and maintenance effort due to integrated work-ing area sealing air concept

■ underpressure sensor for monitoring the air

extraction ■ top-quality Jäger high frequency spindle

with 170 W nominal power under continu-ous load

■ fixing device: for round universal blanks with a diameter of 98.5 mm with step and a thick-ness of 10 to 25 mm

■ tool change: CAM 4-K3 Impression by quick chucking device; CAM 4-K4 Impression by automatic tool changer with 6 stations

■ highest accuracy due to automatic axis meas-urement and axis compensation

■ worldwide applicable due to switching mode power supply for 100 – 240 V and 50/60 Hz

■ certification according to ANSI/UL 61010-1 for exports to the USA and Canada

■ very easy operation via provided CAM soft-ware DentalCAM with Direct-Mill function – no previous knowledge in milling necessary (see page 12)

■ machining wax, plastics, zirconium oxide and composites up to non-precious alloys on cobalt-chrome basis

■ on request the machine can also be con-trolled by an external CAM software

■ machine and software made by vhf in Ger-many

■ extremely affordable price ■ technical data compared with Impression

S models – see page 10

Impression K modelsMost obvious is the extremely compact design of the K models. Upon closer examination, the uncompromis-ingly rigid construction of the machines leaps to the eye. So it is ensured that you will achieve first-class results – even in extremely hard non-precious alloys on cobalt-chrome basis.

Two extremely affordable dental specialists

High-class drive and measuring units are also essential for producing perfect objects. Here, vhf relies for instance on integrated Harmonic Drive® rotary axes. On top of that an automatic axis measurement and compensation ensure a consistently high machining precision – and thus top-qual-ity results.

Also the operation is easy: With our model CAM 4-K4 Impres-sion you get an automatic tool changer with six stations which enables a complete machining of the workpiece – from the initial rough machining up to the ultimate finishing – without manual intervention of the operator. However, if it should for instance not be possible to provide compressed air, we recommend CAM 4-K3 Impression where the tools can be exchanged thanks to a convenient quick chucking device also by hand within seconds.

1Blank

CoCr4Axes

Dry6Tools


Scope of delivery

Order numbers

Detail view of a CAM 4-K3 Impres-sion. The high frequency spindle SF 170 is equipped with a quick chuck-ing devce.

Detail view of the interior of a CAM 4-K4 Impression.

The high frequency spindle SF 170P is equipped with a pneumatic collet

chuck for the auto-matic tool change.

The changing station for six tools is located on the fixing

device.

Generally ■ Impression compact system ■ complete cable set ■ keys for emergency release of the front cover ■ service set for spindle maintenance ■ hose connection for external vacuum cleaner ■ 2.5 mm hexagon socket screw key ■ calibration plate and measuring pin ■ replacement tool measuring plate ■ USB dongle ■ powerful and comfortable software package

DentalCAM with control software ■ manuals in German or English

Additionally for CAM 4-K4 Impression ■ tool changer for 6 tools integrated in fixing

device ■ service unit for compressed air plus hose

Ø 6 mm ■ 1 pair of tool changer inserts of rubber in-

cluding 1 drill 2.8 mm

CAM 4-K3 Impression incl. DentalCAM➯ article no. CM08-I4-K3-DENTAL-CAM

CAM 4-K4 Impression incl. DentalCAM➯ article no. CM08-I4-K4-DENTAL-CAM

Machine accessories page 11

Information on tools page 15

vhf resellers and OEM partners can find all prices on our reseller price list Impression Dental.

PMMAWax ZrO2 CoCr


Your advantages

Milling machine CAM 5-S1 Impression with five simultaneously working axes and a tool change station for 16 tools.

Impression S ModelsCAM 5-S1 Impression and CAM 5-S2 Impression are dental milling machines with five simultaneously working axes. Due to the second rotary axis (B axis) with a rotation range of up to ± 30 degrees undercuts can be milled without any difficulty. Thus, these machines are a perfect addition to the very successful K models with their four axes. Advance into new dimensions

While developing this new machine series it had been im-portant for us to maintain the successful characteristics of the K models: the easy operation, the compact high-quality construction and the very favourable price! Furthermore, we wanted to offer new machining possibilities to the user and make the new machines more comfortable.

Besides the additional fifth axis, the S models distinguish themselves from the K models above all by their more pow-erful and more precise synchronous spindle and by the au-tomatic tool changer for 16 tools. In addition to the cur-rently required tools, you can equip the tool changer with replacement tools. Thus you can continue working without interruption if a tool is worn out or broken. In order to create a solid basement for the highly precise five-axis mechanics, the machine bed of the S models consists of one single mas-sive cast part. This makes these machines extremely stable with minimal exterior dimensions. Moreover, vibrations are reduced and the mechanics is optimally protected.

■ 5 simultaneously working axes

A

± 30°B

360° ■ compact design, its footprint only amounts

to approx. 490 x 445 mm (CAM 5-S1) and approx. 692 x 445 mm (CAM 5-S2)

■ machine bed of massive aluminium cast ■ protection of the danger zone during the

machining process due to an automatic safe-ty interlock at the front cover

■ protection of the mechanics against dust and chippings as well as reduced wearing and maintenance effort due to integrated work-ing area sealing air concept

■ underpressure sensor for monitoring the air

extraction ■ powerful and precise spindle with cone

cleaning and 4-fold hybrid ceramic ball bear-ings with a nominal power of 300 W under continuous load

■ fixing device for round universal blanks with a diameter of 98.5 mm and step and a thick-ness of 10 to 30 mm

■ high-grade automatization due to automat-ic tool change for up to 16 tools – several blanks can be milled in a row without having to exchange worn out tools

■ usage of diamond-coated tools possible due to tool measurement via pressure key

■ highest accuracy due to automatic axis meas-urement and axis compensation

■ controller with optional Ethernet interface ■ CAM 5-S2 Impression with automatic blank

changer for 8 blanks ■ machining wax, plastics, zirconium oxide

and composites up to non-precious alloys on cobalt-chrome basis

■ prepared for machining glass ceramics with wet grinding option (see page 8); liquid nozzles already integrated into the spindle block

■ greatest flexibility regarding applications and materials

■ worldwide applicable due to switching mode power supply for 100 – 240 V and 50/60 Hz

8Blanks

CoCr5Axes

16Tools

DryWet &


CAM 5-S1 Impression Dental incl. DentalCAM ➯ article-no. CM08-I5-S1-DENTAL-CAM

CAM 5-S2 Impression Dental incl. DentalCAM ➯ article no. CM08-I5-S2-DENTAL-CAM

Machine accessories page 11

Information on tools page 15

vhf resellers and OEM partners can find all prices on our reseller price list Impression Dental.

Order numbers

Detail view of the interior of a CAM 5-S1 Impression with rotated B axis.

Generally ■ Impression compact system ■ complete cable set ■ keys for emergency release of the front cover ■ service set for spindle maintenance ■ service unit for compressed air plus hose

Ø 6 mm ■ hose connection for external vacuum cleaner ■ 3 mm or 2.5 mm hexagon socket screw key ■ calibration set ■ 1 pair of tool changer inserts of rubber in-

cluding 1 drill 2.8 mm ■ USB dongle ■ powerful and comfortable software package

DentalCAM with control software ■ manuals in German or English

Additionally for CAM 5-S2 Impression ■ a u t o m a t i c

blank changer with 8 blank frames: It can be equipped with up to 8 blanks, which can be loaded auto-matically into the fixing device for machining.

If you like it even more comfortable, we recommend the model CAM 5-S2 Impression, which is supplementary equipped with a blank changer for eight blanks. You fit the changing station with blanks via a smaller additional front cover. The proper blank for your milling job is inserted into the fixing device automatically when required.

Both machines are prepared for connecting the wet grind-ing module (see the following page for more details). There are liquid nozzles already mounted at the spindle so that the cooling liquid can be applied straight to the tool tip. Thus you can process approved glass ceramic types.

CAM 5-S2 Impression: the blank changer for eight round universal blanks is located behind the additional smaller front cover on the left side.


■ very easy operation via provided CAM soft-ware DentalCAM with Direct-Mill function – no previous knowledge in milling necessary (see page 12)

■ on request the machine can also be con-trolled by an external CAM software

■ machine and software made by vhf in Ger-many

■ technical data compared with Impression K models – see page 10

Continuation advantages

Scope of delivery


Wet Grinding OptionThe wet grinding option opens up new machining possi-bilities to the CNC milling machines CAM 5-S1 Impression and CAM 5-S2 Impression. So materials like glass ceramics which can only be wet ground complete the list of machin-able materials.

However, you do not need a new machine for wet grinding – just an external module and appropriate holders for the glass ceramics blocks (see page 11) for the Impression S models. The wet grinding module which regulates the liq-uid circulation is connected with two hoses for supply and drainage with the machine. From three liquid nozzles that are already integrated into the spindle block, cooling liquid will be directly targeted to the tip of the tool. Thus an efficient cooling is ensured during the whole grinding pro-cess.

The external wet grinding module has an integrated mem-brane pump and a refined system for air and liquid treat-ment. It dries the extracted air and filters the cooling liq-uid from grinding particles. The regularly used dry vacuum cleaner simply has to be connected to the wet grinding module instead of to the machine.

■ wet grinding module ■ external power adaptor: input 100 – 240 V

and 50/60 Hz, output 24 V DC; with cables ■ connection hoses and -cables ■ replacement filters and ph

testing strips ■ mounting wrench for fine

filter container ■ roller set, 60 mm height ■ 1 litre cooling lubricant vhf

Tec Liquid (see image) in-cluding measuring cup

■ software extension for DentalCAM

Scope of delivery

■ new machining options for the Impression S models: glass ceramics can now be ground – the result is a combination of good surface quality and fast grinding times

■ innovative, user-friendly operation ■ no machine changeover necessary when

switching between wet and dry machining due to patent pending intelligent air circula-tion system by labyrinth air guiding system (see scheme)

■ Liquid treatment with triple filtering by inte-grated coarse filter, flat folded filter and fine filter; a contact-less ultrasonic sensor meas-ures the exact liquid level (see scheme)

■ integrated, very silent membrane pump, automatically controllable by DentalCAM software

■ 32 bit microcontroller for coloured backlit graphics display with 128 x 64 pixels which optically indicates liquid level and operating hours counter


■ extension of the DentalCAM software with machining strategies especially for grinding

■ removable liquid container (15 litres) ■ size with housing feet (W/D/H): 382 x 455 x

510 mm (with rolls 60 mm higher), empty weight: approximately 31 kg

■ quality made by vhf in Germany

Your advantages

Wet grinding of glass ceramics on a CAM 5-S1 Impression: three nozzles lead liquid to the tool tip.

CAM5-S1

Glass CeramicsWetCAM

5-S2


15% SN 00000 V40C 0hPC 00PS pump off



Best surface quality – short grinding times

Due to the rigid construction of the Impression S models and the highly precise spindle you will achieve high-class results by using the cooling lubricant vhf Tec Liquid and the appropriate vhf grinding tools. For instance, it is pos-sible to grind a fully anatomic crown of the materials IPS e.max® or VITABLOCS® Mark II within approximately 25 min-utes.

For wet grinding vhf’s range of tools includes a torus grinding tool with coarser grain size for roughing, as well as a fine-grained radius grinding tool for finishing the surface after-wards. These tools are also available as starter set. Please see page 15 for more informa-tion about the grinding tools.

Liquid treatment

Air guiding system

The suction mixture of air and liquid is divided into two circuits. Due to the intelligent labyrinth air guiding system, a large part of the humidity will be separated from the extracted air. So the wet grind-ing option can be operated with a dry vacuum cleaner, there is no additional device required.

The liquid is pumped through the fine filter con-tainer where it will be separated from fine grinding particles. Afterwards the liquid will be pumped back to the CNC milling machine. The contact-less ultrasonic sensor constantly measures the liquid level and shows it on the graphics display.

Wet grinding module in high-quality stainless

steel housing.

The display shows among others the liquid level. Its colour additionally indicates whether the liquid level is in a critical state.

Order numbersDescription Article No. Wet grinding option CM08-I5-ZB-NOCooling lubricant vhf Tec Liquid ET-NO-TL

Block holders for glass ceramics page 11

Information on grinding tools page 15

■ VITABLOCS® Mark II ■ VITA ENAMIC® ■ VITA SUPRINITY®

Machinable materials

■ IPS Empress® ■ IPS e.max®

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Comparison of technical data

CAM 4-K3 and CAM 4-K4 Impression CAM 5-S1 and CAM 5-S2 ImpressionFields of application dental technology dental technology

Machinable materials plastics, wax, zirconium oxide, composites, CoCr plastics, wax, zirconium oxide, composites, CoCr, approved glass ceramic types

Basic systemConstruction basic structure of aluminium precision plates machine bed of massive aluminium castx/y/z pos. range 100 x 98 x 40 mm 140 x 98 x 76 mm

Drives precise ball screw spindles for the 3 linear axes · motor resolu-tion < 1 μm · ground steel precision guide rails · 4 mm lead

precise ball screw spindles for the 3 linear axes · motor resolu-tion < 1 μm · ground steel precision guide rails · 4 mm lead

Repetition accuracy ± 0.005 mm ± 0.003 mm

Axis measurement automatic axis measurement and compensation for abso-lutely exact results

automatic axis measurement and compensation for abso-lutely exact results

Housingcomplete encapsulation of working area with closable front cover · automatic safety interlock at the front cover during the machining process

complete encapsulation of working area with closable front cover · automatic safety interlock at the front cover during the machining process

Working area illumina-tion yes yes;

CAM 5-S2: with additional illumination of the blank changer

Dimensions (W/D/H) approx. 400 x 385 x 410 mm CAM 5-S1: approx. 490 x 445 x 540 mmCAM 5-S2: approx. 692 x 445 x 540 mm

Weight approx. 45 kg CAM 5-S1: approx. 75 kg, CAM 5-S2: approx. 95 kgRotary axes

FeaturesA axis: rotary axis with highest true running accuracy for processing workpieces on their full circumference of 360 de-grees · Harmonic Drive® free from backlash

A axis: rotary axis with highest true running accuracy for processing workpieces on their full circumference of 360 de-grees · Harmonic Drive® free from backlashB axis: rotary axis with highest true running accuracy · rota-tion angle of ± 30 degrees · Harmonic Drive® free from back-lash

Fixing device round universal blanks with a thickness of 10 to 25 mm and a diameter of 98.5 mm with step

round universal blanks with a thickness of 10 to 30 mm and a diameter of 98.5 mm with step; for wet grinding option specific three-fold block holders available

Exchange of workpieces manual exchange of blanks CAM 5-S1: manual exchange of blanksCAM 5-S2: automatic blank changer for eight blanks

Controller

Features

type CNC 300 · synchronic interpolation of 4 axes · great smoothness of running, powerful and accurate due to mi-crostep operation · high processing speed due to exponential acceleration ramps · look-ahead feature for continuous veloc-ity along the path · 6 digital inputs, 2 digital outputs · 4 motor end phases · Chopper controller · cooling via 3 fans

type CNC G12D · synchronic interpolation of 5 axes · great smoothness of running, powerful and accurate due to mi-crostep operation · high processing speed due to exponential acceleration ramps · look-ahead feature for continuous veloc-ity along the path · 8 digital inputs, 8 digital outputs · 5 motor end phases · four quadrant controller · no fan necessary for cooling · optional Ethernet interface

Spindle

Features

CAM 4-K3: asynchronous high frequency spindle SF 170 · nominal power under constant load (S1): 170 W · maximum power output (Pmax): 240 W · rotational speed range up to 60,000 RPM · double steel ball bearings · radial deviation at internal cone of the precision shaft < 1 μmCAM 4-K4: like CAM 4-K3, however as type SF 170P with sealing air against entering of foreign substances

synchronous spindle SFS 300P · nominal power under con-stant load (S1): 300 Watt · maximum power output (Pmax): 600 W · rotational speed range up to 60,000 RPM · 4-fold hy-brid ceramic ball bearings · radial deviation at internal cone of the precision shaft < 1 μm · sealing air prevents entering of foreign substances in the bearing area · cone cleaning

Collet chuck

CAM 4-K3: manual for tools with 3 mm shank diameter and max. 35 mm total lengthCAM 4-K4: pneumatic for tools with 3 mm shank diameter max. 35 mm total length

pneumatic for tools with 3 mm shank diameter max. 40 mm total length

Tool change

Features

CAM 4-K3: manual with quick chucking device · tool length detection and tool breakage monitoring via electric contactCAM 4-K4: automatic tool change station for 6 tools with tool length detection and tool breakage monitoring via elec-trical contact · compressed air monitoring

automatic tool change station for 16 tools · tool length de-tection and tool breakage monitoring via pressure key · dia-mond-coated tools can be used · compressed air monitoring

Wet grinding

Features – 3 liquid nozzles at the spindle for wet grinding · external wet grinding module (optional)

Air extraction

Features

openings in the rear panel of the working area for air extrac-tion · connector for hose at the side of the housing · under-pressure sensor for monitoring the air extraction · 24 Volt output for connecting the switching unit

opening at the housing side for air extraction · underpressure sensor for monitoring the air extraction · 24 Volt output for connecting the switching unit

Other

Accessories switching unit PSW 01-RSV for automatically switching a vac-uum cleaner · administrated tool board

switching unit PSW 01-RSV for automatically switching a vac-uum cleaner · wet grinding option · administrated tool board · blank operation board · block holders for glass ceramics

Special feature certification according to ANSI/UL 61010-1 for exports to the USA and Canada

certification according to ANSI/UL 61010-1 for exports to the USA and Canada


Additional equipment for Impression dental milling machines

Dental suction unit with fine filter

For machining zirconium oxide and other materials where fine dust particles are being pro-duced, we recommend to use a suction unit with fine filter. For instance the Renfert Silent TS with its space-saving tower housing.➯ article no. CM08-I5-ZB-RE-TS

Switching unit PSW 01-RSV

This small unit allows to switch a vacuum cleaner with a connection power of up to 230 V/10 A automatically by the control electronics of your Impression machine on and off and thus automatize your operational procedures. The PSW 01-RSV just has to be connected via the appropriate 24 Volt output. ➯ article no. CM08-I4-ZB-SE230

Cabinet

The stable cabinet offers much space for your blanks, tools and accessories. Its massive gran-ite plate underlines the high-value appearance of your system. Its dimensions are: 950 x 600 x 1,160 mm (W/D/H). An additional shelf plate is mounted on the side of the cabinet for the S Series.➯ for K models: art. no. CM08-I4-ZB-USK ➯ for S models: art. no. CM08-I4-ZB-US0

Tool sets starter edition | Administrated tool board (ATB)

We have assembled frequently required tools as a starter set with 30 items. Due to the espe-cially cheap introductory price, the order quantity is limited to one piece per new machine. With this set, you get the practical administrated tool board for free along with the tools. Its numbered slots will be administrated by the DentalCAM software. So all information remains linked with each tool and you can dispose in total of a much larger active pool of tools. ➯ Set K models: art. no. CM08-I4-WZ-K30 ➯ ATB single: art. no. CM08-ZB-ATB➯ Set S models: art. no. CM08-I4-WZ-S30

Blank operation board (BOB | CAM 5-S2 Impression)

This device consists of a elegant granite base-plate and an eloxed fixing plate of aluminium. Thus you can easily and safely insert new blanks or remove the already milled ones from the blank frames which are used in the automatic blank changer of CAM 5-S2 Impression. You do not risk that a valuable blank will fall down when working freehand and your table surface will be protected.➯ article no. CM08-ZB-BOB

Block holder for glass ceramics (Impression S models)

Threefold block holders for glass ceramics blocks with round shanks, each as specific type for CAM 5-S1 Impression for manually clamping in the fixing device (above) or for CAM 5-S2 Impression for usage with the automatic blank changer (below).➯ for CAM 5-S1: art. no. CM08-I5-ZN-BHS1➯ for CAM 5-S2: art. no. CM08-I5-ZN-BHS2


DentalCAM at a glance

Well-arranged overall view of a fully equipped blank with all bars and drops. DentalCAM helps with many convenient editing functions to ensure an efficient and comfortable nesting of the blank. The different colours of the single elements show their machining status at a glance.

■ suitable for 4 axis and 5 axis simultaneous machining; thus maximum accessibility of undercuts

■ comfortable choice of materials for new blanks, respectively selection of a suitable used blank via the material archive with search and filter functions and preview im-ages

■ operation via self-explaining icons and key-board shortcuts for the most common func-tions; rotation of objects via scroll wheel

■ the automatic blank height optimization can rotate the object within the blank in such a way that the blank height will be optimally utilised by an appropriate twist of the rotary axis – so you can use flatter blanks

■ sintering bars and sintering drops can be at-tached to your objects

■ automatic recognition of prepline, divergen-cies of fits, drillings and undercuts

■ extensive auxiliary functions for placing and editing bars; additionally the bars can be ei-ther reduced or fully removed – this means a considerable reduction of reworking

■ machining strategies are adapted to any kind of object (crowns/bridges, abutments, models, temporary dentures etc.); special strategies for prepline and cavity; the kind of object and its machining quality and the machining status (to be machined now, al-ready machined, to be machined later) can be freely combined

■ fully anatomic objects or inlays will be ma-chined with an extra small tool where neces-sary

■ usage of cylindrical tools for drillings ■ grinding strategies for glass ceramics can be

added via software extension ■ a residual material detection makes it pos-

sible that an object will only be machined at such points with a smaller tool where it is necessary

■ intelligent tool changer: usage of replace-ment tools if main tool is worn out or broken is possible

■ different functions for automatic and manual determination of the milling order

■ the Direct-Mill function enables an imme-diate start of the milling process while the milling paths of other objects or the finishing processes are still being calculated

■ the blanks can be automatically marked so that you can exactly re-chuck them

■ automatic buffering of current milling out-put – very useful for instance in case of an interrupted machining process due to power failure

■ output of a manufacturing protocol in spread sheet form for a better assignment of the milled objects

■ decoupling of the CAM and CNC modules for the independent creation of new milling jobs

DentalCAM version 5This CAM software for the dental technology is especially adapted to the CNC milling machines of the Impression line. Its operation does not demand any previous knowledge due to the clearly structured user guidance. At first, the soft-ware lets you choose the required blank of different materi-als. Then you can import your earlier modelled CAD data via the standardized STL format into this open program. The software supports you with comfortable placement aids in an optimal utilisation of space on the blank.

There are just a few mouse clicks necessary until you can mill your bridgeworks. You place the bars which connect the framework to the blank. If necessary, you can also place drops for the sintering process. It is also possible to ma-chine a blank in several stages; the teeth which have al-ready been milled in a previous pass will be displayed in a different colour and establish a protected area.

Finally, the milling paths of the different tools will be cal-culated fully automatized and highly optimised. Due to the four or five axis path calculation, milling undercuts is no problem any longer. While the milling paths of other objects or the finishing processes are still being calculated, the machine already starts – thanks to the Direct-Mill func-tion – the roughing process. All relevant data concerning blanks, fixing devices and tools have been stored in the CAM software – you do not have to bother about such technical details any more. The user workflow is speed-optimised to such an extent that the whole preparation for a regular crown takes less than one minute from switching on the ma-chine up to the start of the machining process.

Thanks to new machining strategies, it is now possible to mill non-precious alloys on cobalt-chrome basis with all current vhf dental milling machines.


Start screen: easy definition of the charac-teristics (material, height, etc.) of a new

blank at the left side of the window as well as overview of the archive of already exist-ing blanks with various filter functions on

the right side of the window.

blank arch

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After five simple steps your object is ready for milling:1. Choose the object in the file browser.2. Preview of the object and possibility to view the file from all sides using the STL viewer.3. If necessary, the vertical alignment of the object in the blank can be adjusted here.4. Determine the machining strategies by choosing the type of object and the quality, by (de-)activating the blank height optimiza-

tion as well as the possibility to disable the automatic search for divergent insertion angles and drillings in the objects.5. Finally check the objects in the import list and import the complete list to the nesting window. There you just need to place bars

and, if necessary, drops and the milling output can be started.

1.

5.

4.

3.2.

You can comfortably switch between the differ-ent program windows by clicking the icons.


vhf dental toolsOur tool experts have developed sophis-ticated cutting edge geometries for ma-chining the different dental materials from wax to cobalt-chrome. Thus the optimum balance between a best possible surface quality of the machined material and a preferably long endurance of the tool is ensured. All dental milling cutters are manufactured by vhf on modern six-and seven axis precision grinding centres.

Dental milling cutters from vhf consist of a super finest grain carbide mixture of Ger-man origin. It is characterized by its high edge strength with high resistance to wear and ductility at the same time. This additionally improves the workpiece qual-ity and the endurance.

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Fields of applicationWith vhf dental milling tools you can machine the established dental materials. The tools are available with variously optimized cutting edge geometries and with accordingly adapted coat-ings if this is reasonable for the respective mate-rial: wax and plastics (PMMA), zirconium oxide, composites, LavaTM-Ultimate materials as well as non-precious alloys on cobalt-chrome basis. In addition we offer grinding tools for machining glass ceramics. The tools have different-col-oured stop rings, so that you can easily distin-guish them.

all cutting edge geometries in the vhf Shop . . . shop.vhf.eu . . . only for registered vhf resellers and OEM partners . . . shop.vhf.eu . . . detailed tool specifications

We make it easy for you

In the DentalCAM software developed by vhf, all machining and tool param-eters for different materials and objects are already set – the users do not have to bother about such technical details. The machine only has to be equipped with the material and the tools required for the re-spective job and there you go...

14 Dental Tools

Flat ground single tooth cutterThe cutting edge of this cutter is extremely sharp and faceted. Thus the milled edges are very smooth even at high feed rates and the risk of clogging is very low – even for plastics which tend to smear.

This tool is available with a cutting edge diameter of 2.5 mm; it is exclusively used for roughing PMMA and wax. Roughing with a flat ground cutter reduces the milling time.

Radius cuttersThis special dental radius cutter has a semi-circular rounded tip. It is available with cutting edge diameters of 0.6 mm, 1.0 mm and 2.0 mm. As the 2.0 mm tool is mainly used for efficiently roughing, tools with the small diameter of 0.6 mm are mainly used for finely finishing or carving out fissures. Due to the especially long free grinding of these tools, also undercuts can be reached easily.

The tools for plastics/wax and for Lava™-Ultimate are uncoated, for zirconium ox-ide they are uncoated and coated, the tools for composites and CoCr are always coated.

Flat ground double tooth cuttersA double tooth cutter with flat face grinding and a cutting edge diameter of 1.2 mm. It is used when 90° angles have to be milled, e. g. in drillings and abut-ments.

For machining non-precious alloys on cobalt-chrome basis, this tool is available as torus cutter with a small edge radius which protects the cutting edges. So a higher endurance is guaranteed.

The tools for plastics/wax and for Lava™-Ultimate are uncoated, for zirconium ox-ide they are uncoated and coated, the tools for composites and CoCr are always coated.

Grinding tools for glass ceramicsvhf offers two tools for grinding glass ceramics with the Impression S models: a torus grinding tool with coarser grain size for roughing and a fine-grained ra-dius grinding tool for the later finishing process.

Both tools distinguish themselves by a good abrasion and break resistance, and their endurance is very long. A diamond grit with especially good binding to the shank avoids microfissures and reduces the sensitivity for thermal impact.

all cutting edge geometries in the vhf Shop . . . shop.vhf.eu . . . only for registered vhf resellers and OEM partners . . . shop.vhf.eu . . . detailed tool specifications

15Dental Tools

vhf camfacture AGLettenstraße 1072119 Ammerbuch/GermanyPhone +49 (0) 7032 97097-000Fax +49 (0) 7032 97097-900Internet www.vhf.euE-Mail [email protected]

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