News Categories
(549)Articles (187)News (43)Events (88)Press Releases (71)BobCAD-CAM (385)CAD-CAM (4)Nesting (5)cad-cam training (1)cnc software training (1)online training (48)Case Studies (11)Seminars (87)bobcad (46)cnc milling (50)machine shop (3)cnc plasma (6)cnc router (372)cnc software (42)production machining (8)Machine Setup (6)Wire EDM CAD-CAM Software (5)cnc nesting (6)cnc router software (4)cnc sheet optimization (2)nesting cad-cam (6)plasma software (9)bobart (17)cad/cam (1)IMTS 2016 (33)cad-cam programming (4)cam system (4)cad-cam simulation (5)cnc simulation (9)software (21)Manufacturing Technology Training (4)Training Classes (8)Training seminar (354)CAD-CAM Software (18)Manufacturing Industry (1)section 179 tax deduction (1)Tax Savings (8)Artistic Manufacturing (19)3 Axis CNC Machining (11)4 Axis CNC Machining (18)5 Axis CNC Machining (1)Haas UMC 750 (1)Robey Tool and Machine (12)BobCAM for SOLIDWORKS (1)Brokklyn Custom Metal Fabrication (1)Design CAD (2)Gold Partner CAM Add-in (1)Inc. (7)SOLIDWORKS (1)Tormach CNC (1)WAX RAX (347)CAM Software (1)Architectural Renaissance Techniques (1)CAM Simulation (1)CarveTech (1)Engravimng (1)Mold Making (1)Texas Injection Molding (1)Copeland Racing (1)High Speed CNC Machining (1)racing (79)CAD-CAM Quick Tips (42)Tutorials (6)BobCAM (2)CAD Design (1)SOLIDWORKS Design Software (1)SOLIDWORKS Gold Partner (2)3D machining (1)3D Parts (2)3D Programming (1)3D Toolpaths (1)2D Machining (1)2D Toolpath (1)BobCAD AfterDark (4)CNC (1)Thread Milling (7)3D Toolpath (2)Boundaries (4)CAM (2)Check Surfaces (4)Milling (3)Toolpath (1)CNC Machine Simulation (1)2D Pockets (1)3D Milling (1)3D Surfacing (1)Plunge Roughing (1)2 Axis Lathe (1)2 Axis Lathe Software (2)CNC Lathe (1)CNC Turning (4)Lathe (2)Mill Turn (1)computer aided design (1)4 Axis Machining (1)4 Axis Rotary (1)CNC Mill (1)CNC Mill Turn (3)Indexing (2)Machine Simulation (1)Rotary Toolpath (1)Wrapping and Rotary (1)DXF Files (1)Sign Making (1)New Product Releases (1)Sign Expert Training Videos (1)Training Professor Videos (1)Embossing (1)Engrave on a surface (3)Engraving (1)V-Carving (1)5 axis programming (1)Live C (1)MultiAxis CNC Machining (1)Training Video Professor Series (3)CAD CAM (1)Mill 3 Axis (5)CAD (1)Guitar Manufacturing (1)Network Licensing (1)CAD-CAD (2)Plasma (1)Martin Sprecher BobCAD-CAM Successful Customer (1)Post Processor (2)Training Videos (1)Blackfin Manufacturing LLC (1)Customer Review (5)Customer success (1)R & D Machining (96)Tech Tuesday (1)IMTS (1)cam softwware (3)cnc terminology (2)advanced pocketing (1)advanced toolpaths (2)pockets (1)3 axis (1)case study (1)vertical milling (3)5 axis (1)5 axis indexing (1)5 axis swarf (1)swarf (2)CAD Tree (1)Cad tree V31 (1)multiaxis sorting (1)multiaxis sorting options (51)v31 (1)bobcad-cam software (1)multi passes (1)multiaxis multi passes (1)toolpath points (1)advanced rough (2)advanced roughing (2)mill pro (1)mill pro v31 (1)bobcad wireframe (1)wireframe to solid (1)cartesian Coordinate system (34)quick tip (1)title blocks (2)shape library (1)offsets (1)orientation (1)work offsets (1)extract edges (1)v31 cnc (1)section view (2)project curves (1)imprint (1)spun profile (1)arcs (2)planes (6)tech tuesday (1)drill multi depth holes (2)drilling (2)user interface (1)hole pattern (1)drill hole sort pattern (2)quick tips (1)tapping (2)thread library (2)Articles @es (1)cutter comp (1)lead-in/out (1)counterbore (1)holes (8)2 axis (1)open profile (1)machine inside pocket (2)bobcad-cam cnc (1)direction of cut (1)profiling (1)demo mode (3)2d (1)qyuick tip (1)ramp slot (1)slots (2)side rough (1)2 axis tabs (2)bobcadcam (1)tabs (1)haas rs 232 (1)depth of cut (1)solid fillet (1)cylinder (2)pocketing (3)chamfer (1)solid chamfer (1)view normal (1)bobcad facing (1)edge breaking (1)mill (1)mill premium (1)morph (1)roughing (1)tapered pockets (2)tapered walls (1)art cnc (1)success (1)3d (1)counter bore slot (1)counterbore slot (1)tapered pocket (1)facebook groups (2)press release (2)3d control (1)v31 quick tip (1)3d geometry (1)boundary (1)depth options (1)angle range (2)operation stock (8)BobCAM for SOLIDWORKS Quick Tips (1)face milling (1)facing (7)v7 (1)minimize retracts (1)contour ramping (1)profile tabs (1)extend (1)trim (1)open pocket (2)docking panes (1)calculator (2)data entry (1)tips (1)select geometry (1)shading off (1)boolean add (1)center pocket (1)filet (1)manufacturing milestones (1)constraints (1)custom (1)geometry (2)ID (2)OD (1)stock (1)Private (1)2d to 3d (3)design (1)part print (1)wireframe (1)workflow (1)feature types (1)region (2)turning (1)finish patterns (1)carpet (1)loopers (1)tufting machine (1)sketching (1)bobcad technicians (1)support (1).stl (2)simulation (3)cam tree (1)manager (1)artistic cnc (1)bobart manager (1)UCS (1)boolean (1)cone (1)solids (3)new release (21)v32 (1)new software (1)installation (1)installing v32 (1)upgrade migration (1)current settings (1)default settings (1)cam tree settings (2)tool library (1)v32 tool library (1)material library (1)v32 cad tutorial (1)v32 mill (1)v32 mill tutorial (1)ribbon bar (1)lathe tutorial (1)wire edm (1)wire edm tutorial (1)laser (1)tutorial (1)waterjet (1)posting (1)work offset (1)work offset pattern (2)Surface Modeling (1)Surfacing Features (1)wireframe creation (1)Lathe Training Professor (1)Mill Training Professor (1)Service Pack Release (1)2D Drilling (1)depth settings (1)T-Cutter (1)BobCAD-CAM V32 Service Pack 2 (1)software updates (1)BobCAD-CAM software version (16)V33 (1)V33 Release (2)BobCAD Service Pack (1)bobcad updates (1)BobCAD V33 new version (1)V33 updates (1)BobCAM Updates (1)BobCAM V8 (1)BobCAM V8 new version (1)CAM software for solidworks (1)General News (1)BobCAM for Rhino (1)CAM modules (1)Rhino CAD (1)rest machining (1)Peck Drilling (1)Side Roughing (1)CNC Machining (1)Hole Feature Recognition (3)Probing (1)V9 (1)Corner Slowdown (3)V33 Features (1)BobCAD V33 Service Pack 2 (1)Drill Tip Positions (3)V33 CAM Features (1)Barrel Mill Tool Support (1)BobCAM for SOLIDWORKS V9 (1)Adaptive Feedrate (1)Advanced Feedrates (1)G code (1)Radial chip thinning (1)MachiningCloud (1)XML Import and Export (1)CAM Tree Flyout (1)Gouge and Collision Reports (1)Reporting (1)Setup Sheets (1)Tool Assignment (1)CAM Libraries (1)Stock Material Library (1)Tool Holder Library (1)BobCAD V33 (1)5 Axis Milling (1)Center of Rotation on a 5-AxisTable-Table Milling (1)4 Axis Milling (1)Avoid Fixture Geometry (1)Better Target Material (1)BobCAD-CAM V33 (1)Cross Drilling (1)Hole Recognition (1)Reduce part handling (1)Toolpath Patterns (1)Wrapping Groups
RSS Feed
News
Jul
15

In the BobCAD-CAM system when using the multi-axis features your machine must be properly defined. The calculations that must be performed for proper G-Code creation depends on an accurate definition of your machine’s kinematics. This document covers how to find the center of rotation for a 5-axis Table-Table machine with a tilt rotary unit so the machine parameters can be correctly defined.

There is a simple test you can use to find the necessary values and we will walk you through this process here in this document.

Overview of the required steps:

  • Locate 2 point locations on the rotary platter in 2 orientations of the tilt/rotary unit 90 degrees apart.
  • Using the CAD system, draw the 4 points and create the geometry that will show the center of rotation.

 

Step 1 –Locate the X Axis and Z Axis Positions of the 1st Point (P1)

The 1st point we need to locate is at the center of the face of the rotary platter. The following image shows the location of the point we are looking for.

Important Note: This document shows a tilt/rotary unit that when at Zero-Zero (both rotation angles at zero), location has the tilting axis sitting where the rotary is aligned to rotate around the X axis. If your zeroing your assembly at a different location, simply apply what you see here to your orientation.

To find this location on your machine, use a tool to touch the face of the platter to find your X axis component. Use the bottom of the tool to touch off the edge of the rotary platter then account for the radius of the platter to get the point at the center. We will call this P1

Locate the X Axis and Z Axis Positions of the 1stPoint

Note the X axis and Z axis positions of this point. (X, Z).

 

Step 2 – Locate the X Axis and Z Axis Positions of the 2nd Point(P2)

To find the 2nd point leave the tilting axis in the same position and locate the edge of the rotary platter making sure to stay in the same Y axis planeand X axis planeas shown in the following image. The Z coordinate should be the only difference.

find the 2nd point leave the tilting axis in the same position

Note the X axis and Z axis positions of this point. (X, Z).

 

Step 3 – Locate the X Axis and Z Axis Positions of the 3rd Point(P3)

To find the 3rd point you need to rotate the tilting axis to a position that will hold the rotary platter,so it is facingthe Z axis of the machine tool. The following image shows the location we are looking for.

find the 3rd point you need to rotate the tilting axis to a position that will hold the rotary platter

 

Step 4 – Locate the X Axis and Z Axis Positions of the 4th Point(P4)

Find the edge of the platter in the X+ direction so you are finding the same platter location as in Step 2 but now in this rotated position as shown in the image below.

find the 2nd point leave the tilting axis in the same position

Note the X axis and Z axis positions of this point. (X, Z).

 

Step 5 – Use the CAD system to find the center of rotation

Create 2 lines using the following point locations in the CAD system.
Line 1 –Use point P1 and point P3
Line 2 –Use point P2 and Point P4

These points represent the same two locations on your tilt rotary unit when the unit is in the two different positions. The following image shows an example of these points from a FRONT view. Your point locations will vary.

 Use the CAD system to find the center of rotation

 

Next we need to create lines that are perpendicular from these two entities at their midpoint. The lines should extend in the direction of the center of rotation.

create lines that are perpendicular from these two entities at their midpoint

 

Use the Trim Two option to trim the two perpendicular lines to each other. The intersection point of these two lines is the center of rotation. The following image shows the result of these steps.

Use the Trim Two option to trim the two perpendicular lines to each other

 

You can now measure the X dimension and Z dimension from a known point. In this example we have taken measurements from point P1 to the center of rotation.
Center X:________
Center Y:________

Try BobCAD-CAM V33 today!
 
BobCAD-CAM has provided CAD-CAM CNC Software products to the global manufacturing industry for over 30 years. BobCAD-CAM software can be found to increase CNC productivity for many applications in aerospace, automotive, production manufacturing, mold making, general machining, woodworking as well as the medical manufacturing industry, consumer products, musical instruments, custom fabrication, defense industry and many others due to the products ability to automatically generate NC programming code for such a wide variety of CNC controllers. BobCAD-CAM software is also found in educational institutions throughout the world as well as independent hobby home use. Products include machining technology for 2, 3, 4 & 5 Axis CNC Milling, Routing, Waterjet, Plasma and Laser machines as well as 2 Axis CNC Lathe. BobCAD-CAM is modular allowing shops to start off at a reduced technology level and add technology as it is needed including an add-on, BobART, for artistic machining. Unique technology includes adaptive high-speed machining multiaxis milling and routing which is a first in the world of CAD-CAM software. BobCAD-CAM also provides a variety of quality training products that include regional and online training classes or private sessions tailored to specific applications. Professional certification and multi-tiered support solutions are available. Contact BobCAD-CAM directly for more information at 877-262-2231 or 727-442-3554


Read more »