Version 4.0 Release 8, to be shipped in early December, offers many new and improved functions. The key words are indexed collision avoidance, the extended machine unit library, the simplified feature scanner, improved 5-axis simultaneous avoidance milling, convenient machine simulation and much more. There have also been updates in CAD: Reverse engineering is now easier and faster with more automation.
We’re offering three webinars on Tebis Version 4.0 Release 8. Learn from our product managers Franziska Siegrist and Fabian Jud about how you can benefit from the new features and improvements in our software.
As the basis for reverse engineering, you create a wire-frame model from scanned data, which in turn is used to create a surface model. The surface model can now be generated automatically and conveniently with the new Tebis Version 4.0 Release 8. You can use the new "BRep/Top/Approx" function if the surface model needs to reference the original scanned data. If you only want to reference the wire-frame model, you can use the "BRep/Top/Fill" function.
Select the wire-frame model, and then the surfaces are automatically calculated in the background.
If you select the new "Display/Compact" option, in addition all surfaces are displayed in a single color as a preview. This enables evaluation of the surface quality at a glance. You can specify this color in advance.
If design curves should not be changed in reverse engineering, you can fx these curves with the "Confgure edges" function.
From wireframe to surface model.
The new release provides variable drill bushes and drill bush holders as machine components in the unit library. All components of state-of-the-art deep drilling machines can now be stored as digital twins in the system. This enables the highly automated generation of NC programs for 5-sided deep-hole drilling using the "MDeep2" NCJob function with no restrictions .
Integrated simulation ensures collision detection before NC output. Travel behavior and switching of drill bushes and drill bush holders are simulated with absolute precision in the virtual CAM environment.
Features that are already connected to the part – because they were imported via interfaces, or because the part has already been scanned – are accounted for during scanning and don’t have to be inserted again.
The new “Auto” function is also very convenient: The part is completely scanned with no interruptions, and clearly evident features are automatically inserted. If several different features are possible for a machining operation, you can select the appropriate areas after scanning and choose the desired feature.
The process in the video
Profile contours for turning can now be derived with absolute precision from the 3D part contour using the revised "Profle" function. Moreover, circles are mapped one-to-one. The subsequent blanks are more precise with no need for design preparation of the profile contour.
A new substrategy in the "NC2ax/MCont" function for downward machining lets you machine highly efficiently along curves and contours. Machining time is significantly reduced. This method also provides very good protection of your machine tools: The machine spindle is subject to lower loads due to machining in the axial direction. Side milling and downward machining can be easily combined, so you can fully benefit from the advantages of both strategies.
The function „NC3ax/RFill“ for the residual stock machining offers a new, very comfortable strategy for collision avoidance with the indexed tilt direction calculation: This strategy automatically detects and connects milling areas that can be machined collision-free with the same tilt direction. The corresponding tilt direction is also calculated. Areas that can’t be machined without collisions are deactivated and can be selected in the continuation job. Of course, you remain completely flexible and can also manually subdivide the milling areas as desired.
Indexed collision avoidance therefore shortens machining time and improves surface quality. It’s recommended, for example, for multi-axis machines that are unsuitable for 5-axis simultaneous machining because of their dynamics.
Video: Indexed manufacturing with automical and manual division of areas.
The function for 5-axis simultaneous avoidance milling has been comprehensively improved. Specific milling areas are automatically deactivated if they cannot be machined collision-free in an NCJob calculated with the "3to5-axis" collision avoidance strategy.
To left in image: All areas are calculated and checked for collisions.
To right in image: Areas that can be manufactured collision-free with 3-axis or 5-axis simultaneous avoidance milling are machined. Areas that can’t be manufactured collision-free can be processed in the continuation job.
The pivoting behavior of the tool has also been optimized. The tool doesn’t perform 5-axis simultaneous avoidance unless a collision would actually occur in 3-axis machining.
All new functions regarding the 5-axis simultaneous avoidance milling in the video.
Edges that don’t lie on the same plane can now also be processed by automatic multi-axis simultaneous deburring with tapered cutters using the "NC5ax/MBurring" function. You can specifically select whether you want to machine the part in climb cut, conventional cut or lace cut mode. Machining of sharp edges and corners has also been optimized.
A real highlight for the machine operator is the extended NC output. If the "Planes uniform" selection box is activated in the "NC2AX/Mill/MPlan” function, the machine operator can manually edit the depth of cut, total depth or the reference point after NC output, thereby matching them to the depth of cut and position of the tool. Of course, this function is only available to a limited extent for reasons of collision prevention:
Nothing can be changed that could result in a collision.The ability to edit the NC program is especially useful in part manufacturing when the stock allowance and material properties of the blanks are not precisely known.
In the "NC3ax/RPlan” function, you can now select the desired feed rate for helical stepover between the machining planes. This "re-roughing mode" accelerates roughing and ensures longer tool life. If desired, the connection length that should not be exceeded can be specified for this special roughing operation.
You can now easily determine the insert length for tool assemblies at the click of a button. A line at the diameter of the cutter is drawn parallel to the tool axis. The intersection point between this line and the shank contour yields the insert length.
Do you want to simulate your entire machining operation without the simulation stopping at every possible conflict? Then simply accept these conflicts in the contact list for the completely tested NC program. Accepted conficts are no longer accounted for during the simulation.
Of course, you can also easily go back to the confict list during the simulation and accept conficts that are found This means that you always have an overview.
View the entire process – accept conficts, simulate, accept conficts – in the video.
For parts in multiple setups, the blanks of adjacent components are now also fully accounted for when collision checking with the CNC simulator.
Images from comments in the Job Manager can now be conveniently resorted using drag and drop. The sequence is transferred to the NC documentation.
You can now specify radii and angles for reliefs right in stanchion design. This ensures that sharp corners on relieved stanchions, base plates and ribs are avoided. This has two significant advantages: On the one hand, the entire device can be manufactured more quickly due to the more homogeneous travel. And on the other hand, the machine operator can remove waste pieces with no risk of injury.
The parameters can be individually optimized depending on the requirements. For example, the best results can be achieved using small radii and flat angles for laser cutting. In contrast, the cutter requires sufficient space for trimming plastics: The better choice may be large radii and a steeper angle.
Have a look at our Release 8 Flyer