|
Introduction to Surface Modeling and Machining
|
 |
|
|
Familiarization with Windows the desktop start button my computer recycle bin Windows Explorer
Moving files and file structure right mouse click functionality copy/paste within the hard drive and inverse copy to the desktop drag and drop creation of new folders keyboard shortcuts control key + the letter "X" = cut control key + the letter "C" = copy control key + the letter "V" = paste
Multitasking applications moving among multiple copies of Explorer switching among multiple copies of SURFCAM minimizing / maximizing / closing applications
Machining procedure geometry creation creation of tool paths producing CNC code (post processing) DNC machine tool functions
Part generation setting goals creating a plan to achieve goals
File organization (how to create and locate files) SURFCAM program files on the C drive explanation of DSN files explanation of NCD files explanation of ICD files
Basic geometry creation creation of lines and rectangles circles fillets chamfers
Applying tool paths contour pocketing
SURFCAM 2-Axis Beginning and Advanced
2-Axis Beginning (first day of two-day class)
Windows NT 4.0 desktop close maximize minimize
SURFCAM system pull downs DDB (device dependent bitmap) DIB (device independent bitmap) help
View port control with the tool bar control buttons masking, yes or no in the status menu menu level heading prompt line menus with pop-ups status bar color view cview scale depth masking drawing window / view port axis gnome / cview gnome
Geometry creation construction view, cviews view planes, the way the user sees the part
Contouring multiple path contouring removing material from the sides of a contour contouring with taper angle pocketing with taper angle geometry settings top bottom top Z bottom Z side clearance none on all with cutter comp on islands amount
2-D Rest machining as a secondary operation on an existing tool path need to rechain the geometry following the prompt line as a predetermined strategy on a current tool path machine left-over material button no need to rechain the geometry method of cutting contouring the rest material pocketing the rest material remaining stock overlap avoidance of widows peaks
Thread milling orientation internal / external direction right / left hand threads number of starts direction of cut thread over-run top / bottom threads or inches number of rough / finish passes plunge selection speed / centering lead moves radial line tangent arc tangent helix start point orientation
SURFCAM utilities import / export file types tool path transformation utility .ICD extract to .INC .ICD to text .INC extract to geometry layers, supports up to 256 layers colors, drawing with colors depth, z-depth of the cursor scale, scale of the view port window image size deleting geometry editing geometry
Trim Break functionality trim 1 / break 1 trim 1 . break 2 modal command
2-D Geometry geometry selection options single chain auto multi-select on/off chaining examples pockets pockets with multiple islands multiple contour profiles direction of chaining for climb or conventional cutting pocketing straight pocket pockets with islands contouring straight contour multiple path contouring drilling cycles selection mass selection lead-ins arc on all / final line on all / final lead-outs arc on all / final line on all / final plunges helical ramp plunge peck
Files and tool path management .DSN geometry design files .ICD tool path information .INC SURFCAM internal G-code .NCC posted numerical control code
2-Axis Advanced (second day of two-day class)
Contouring multiple path contouring removing material from the sides of a contour contouring with taper angle pocketing with taper angle geometry settings top bottom top Z bottom Z side clearance none on all with cutter comp on islands amount
2-D Rest machining as a secondary operation on an existing tool path need to rechain the geometry following the prompt line as a predetermined strategy on a current tool path machine left-over material button no need to rechain the geometry method of cutting contouring the rest material pocketing the rest material remaining stock overlap avoidance of widows peaks
Thread milling orientation internal / external direction right / left hand threads number of starts direction of cut thread over-run top / bottom threads or inches number of rough / finish passes plunge selection speed / centering lead moves radial line tangent arc tangent helix start point orientation
SURFCAM utilities import / export file types tool path transformation utility .ICD extract to .INC .ICD to text .INC extract to geometry import .NCC file
Wire frame geometry creation cview orientation world coordinate system view coordinate system cview trim and break functionality multi-plane filleting
View Machining machinig multiple sides of a block Z-level orientation
Fixture machining
Clamp avoidance
Open lab work
Introduction to Surface Modeling and Machining
Beginning surface construction cross section sections grid drive curve revolution primitive surfaces filleted surfaces extruded surfaces
Basic surface spline creation Surface intersection spline fillet edge spline projected spline spline creation tolerance settings boundary curves single spline broken into multiple splines all boundaries boundary picked segment picked
3-D Tool pathing individual surface tool pathing edit surfaces for tool pathing direction "D" side "S" Corner "C" machine settings stock to leave tool containment spline patch both none multiple planar spline containment gouge checking against surfaces none single multiple step type increment scallop scallop value surface tolerance retrace type bi-directional relative plane relative setting feed between distance setting rapid setting top plane minimum Z- setting lead-in lead-out plunge type
NC Mode switching on the same part surface machine a part create edge splines on the surface model using edge splines, contour an edge of a surface model in 2-D
Open lab for discussion and trial
Z-Level roughing lead-in off the material selection of plunge points
Flow surface machining
Corner clean out using cutter intersection splines
Clean out using flow surface containment
Projection text on a 3-D part
Invalid surface detection turns color to red places surface on separate layer
Enhanced surface spline creation boundary curves single spline broken into multiple splines all boundaries boundary picked segment picked flow curves rest curves cview "top" construction only tolerances comparison surface model curve smoothness overlap save curves original boundary normals for tools intermediate curves final offset boundary steep / shallow curves angular tolerances minimum angle maximum angle grid tolerance overlap surface tolerance
Multiple planar spline containment
3-D Rest machining cutting method planar Z-level stock selection comparison surface normal machine axis tolerances comparison model curve smoothness overlap save curves
Steep / slope detection planar cutting shallow cutting option minimum / maximum angles grid tolerance overlap save curves optimized feed between more efficient tool path / less rapid moves Z-level cutting steep cutting option minimum / maximum angles grid tolerance overlap save curves
Advanced surface creation drive curve with direction curve drive curve options cross section surface review sections grid cross section synchronization connecting lines dialog box points / line mesh offset surface creation set mount toward / away from arrow filleted surface creation surface side auto intersect splines auto trim functions rolling ball fillets variable radius fillets reference curve setting for bled linear blended extruded surfaces blended surfaces two surface edges or splines three surface edges or splines four surface edges or splines trim plane surface creation cap chain auto
Drafted surface creation surfaces can overlap if radi are too small or angle is too small
Trimming of composite surfaces now supported
Variable radius fillets auto trim now supported
Invalid surface detection turns color to red places surface on separate layer
Enhanced surface spline creation boundary curves single spline broken into multiple splines all boundaries boundary picked segment picked flow curves rest curves cview "top" construction only tolerances comparison surface model curve smoothness overlap save curves original boundary normals for tools intermediate curves final offset boundary steep / shallow curves angular tolerances minimum angle maximum angle grid tolerance overlap surface tolerance
Surface options display curves "U" and "V" settings max. 99 setting minimum 0 showing control points surface generation tolerance tolerance within which surface deviates from cross sections cross section drive curve blend cross section orientation 2-D 3-D directing curve selection yes no constant between cross sections yes no
Parting surface creation planar
Parting surface creation non-planar
Splitting models apart for cavity and core
Extracting electrode detail from a surface model
|
||
