| 1 | # Sample: creation of milling cutter |
| 2 | #Category: Modeling |
| 3 | #Title: Milling cutter |
| 4 | |
| 5 | pload MODELING VISUALIZATION |
| 6 | |
| 7 | # parameters |
| 8 | dset R 10. ;# outer radius |
| 9 | dset H 20. ;# height of the spiral part |
| 10 | dset a 0.5*pi ;# total angle of spiral rotation |
| 11 | |
| 12 | # make profile |
| 13 | |
| 14 | circle outer 0 0 0 0 0 1 R |
| 15 | circle inner 0 0 0 0 0 1 R-2 |
| 16 | circle round 3 6 0 0 0 1 5 |
| 17 | polyline cut -2 0 0 -2 R+1 0 0.5 R+1 0 -1 0 0 -2 0 0 |
| 18 | |
| 19 | proc _curvetoface {name} { |
| 20 | uplevel #0 mkedge $name $name |
| 21 | uplevel #0 wire $name $name |
| 22 | uplevel #0 mkface $name p0 $name |
| 23 | } |
| 24 | |
| 25 | plane p0 |
| 26 | _curvetoface outer |
| 27 | _curvetoface inner |
| 28 | _curvetoface round |
| 29 | mkface cut p0 cut |
| 30 | |
| 31 | bcommon teeth cut round |
| 32 | bcommon teeth teeth outer |
| 33 | |
| 34 | tcopy inner profile |
| 35 | set nbteeths 25 |
| 36 | for {set i 0} {$i < $nbteeths} {incr i} { |
| 37 | fuse profile profile teeth |
| 38 | trotate teeth 0 0 0 0 0 1 360./$nbteeths |
| 39 | } |
| 40 | |
| 41 | # sweep profile along curved shape |
| 42 | |
| 43 | polyline sp 0 0 0 0 0 H |
| 44 | cylinder ss 0 0 0 0 0 1 1 0 0 R |
| 45 | vertex v1 R 0 0 |
| 46 | vertex v2 R 0 H |
| 47 | line ll 0 0 a H |
| 48 | trim ll ll 0 sqrt(a*a+H*H) |
| 49 | |
| 50 | trotate v2 0 0 0 0 0 1 180.*a/pi |
| 51 | mkedge ee ll ss v1 v2 |
| 52 | wire gg ee |
| 53 | |
| 54 | donly profile sp gg |
| 55 | explode profile w |
| 56 | tcopy profile_1 profile_2 |
| 57 | tcopy profile_1 profile_3 |
| 58 | tscale profile_1 0 0 0 1./(R-2) |
| 59 | ttranslate profile_2 0 0 H/2 |
| 60 | tscale profile_2 0 0 H/2 4./(R-2) |
| 61 | ttranslate profile_3 0 0 H |
| 62 | tscale profile_3 0 0 H 3./(R-2) |
| 63 | |
| 64 | mksweep sp |
| 65 | setsweep -G gg 0 0 |
| 66 | addsweep profile_1 |
| 67 | addsweep profile_2 |
| 68 | addsweep profile_3 |
| 69 | vclear |
| 70 | |
| 71 | buildsweep base -S |
| 72 | |
| 73 | # make a shank |
| 74 | plane p1 0 0 H 0 0 1 |
| 75 | pcylinder shank p1 1.4 H |
| 76 | plane p2 0 0 H+1 0 0 1 |
| 77 | pcylinder sh2 p2 1.5 H-1 |
| 78 | bfuse shank shank sh2 |
| 79 | bfuse cutter base shank |
| 80 | |
| 81 | # check result |
| 82 | checkshape cutter |
| 83 | |
| 84 | # show result |
| 85 | incmesh cutter 0.01 |
| 86 | vdisplay cutter |
| 87 | vsetdispmode cutter 1 |
| 88 | vrenderparams -msaa 8 |
| 89 | incmesh profile_1 0.01; vdisplay profile_1 |
| 90 | vfit |