From 7a960c8f2a2d478b77b1c1a4d78db69c7a9c00a0 Mon Sep 17 00:00:00 2001 From: Adrian Mariano Date: Thu, 13 Apr 2023 17:35:08 -0400 Subject: [PATCH] doc tweaks to threading --- threading.scad | 31 +++++++++++++++++++++++-------- 1 file changed, 23 insertions(+), 8 deletions(-) diff --git a/threading.scad b/threading.scad index f790c5e..f9baab0 100644 --- a/threading.scad +++ b/threading.scad @@ -51,7 +51,7 @@ // https://patents.google.com/patent/US447775A meant to address these limitations. // Instead of beveling the end of the screw, Higbee said to remove the partial thread. // The resulting screw might look like this: -// Figure(3D,Med,NoAxes,VPR=[71.4,0,292.8],VPT=[2.47443,0.356302,-1.41819],VPD=43.9335): +// Figure(3D,Med,NoAxes,VPR=[72,0,294],VPT=[0,0,0],VPD=44): // $fn=48; // threaded_rod(d=13,pitch=2,l=10,blunt_start=true,lead_in_shape="cut",end_len=.2); // Continues: @@ -71,23 +71,23 @@ // the bevel is sized to the full outer diameter of the threaded rod. // With blunt start threading, the bevel appears on the unthreaded part of the rod. // On a threaded rod, a bevel value of `true` or a positive bevel value cut off the corner. -// Figure(3D,Med,NoAxes,VPR=[73.2,0,53.7],VPT=[2.47443,0.356302,-1.41819],VPD=43.9335): +// Figure(3D,Med,NoAxes,VPR=[72,0,54],VPT=[0,0,0],VPD=44): // threaded_rod(d=13,pitch=2,l=10,blunt_start=true,bevel=true,$fn=80); // Continues: // A negative bevel value produces a flaring bevel, that might be useful if the rod needs to mate with another part. // You can also set `bevel="reverse"` to get a flaring bevel of the default size. -// Figure(3D,Med,NoAxes,VPR=[73.2,0,53.7],VPT=[2.47443,0.356302,-1.41819],VPD=43.9335): Negative bevel on a regular threaded rod. +// Figure(3D,Med,NoAxes,VPR=[72,0,54],VPT=[0,0,0],VPD=44): Negative bevel on a regular threaded rod. // threaded_rod(d=13,pitch=2,l=10,blunt_start=true,bevel=-2,$fn=80); // Continues: -// If you set `internal=true` then bevels are reversed: positive bevels flare outward so that when you subtract +// If you set `internal=true` to create a mask for a threaded hole, then bevels are reversed: positive bevels flare outward so that when you subtract // the threaded rod it gives a beveled edge to the hole. In this case, negative bevels go inward, which might be useful to // create a bevel at the bottom of a threaded hole. -// Figure(3D,Med,NoAxes,VPR=[73.2,0,53.7],VPT=[2.47443,0.356302,-1.41819],VPD=43.9335): Threaded rod mask produced using `internal=true` with regular bevel at the top and reversed bevel at the bottom. +// Figure(3D,Med,NoAxes,VPR=[72,0,54],VPT=[0,0,0],VPD=44): Threaded rod mask produced using `internal=true` with regular bevel at the top and reversed bevel at the bottom. // threaded_rod(d=13,pitch=2,l=10,blunt_start=true,bevel2=true,bevel1="reverse",internal=true,$fn=80); // Continues: // You can also extend the unthreaded section using the `end_len` parameters. A long unthreaded section will make // it impossible to tilt the bolt and produce misaligned threads, so it could make assembly easier. -// Figure(3D,Med,NoAxes,VPR=[73.2,0,53.7],VPT=[2.47443,0.356302,-1.41819],VPD=43.9335): +// Figure(3D,Med,NoAxes,VPR=[72,0,54],VPT=[0,0,0],VPD=48): Negative bevel on a regular threaded rod. // threaded_rod(d=13,pitch=2,l=15,end_len2=5,blunt_start=true,bevel=true,$fn=80); // Continues: // It is also possible to adjust the length of the lead-in section of threads, or the @@ -95,7 +95,7 @@ // to specify a length or the `lead_in_ang` arguments to specify an angle. For general // threading applications, making the lead in long creates a smaller thread that could // be more fragile and more prone to cross threading. -// Figure(3D,Med,NoAxes,VPR=[51.5,0,303.4],VPT=[4.98906,1.63966,-0.141486],VPD=35.5861): +// Figure(3D,Med,NoAxes,VPR=[52,0,300],VPT=[0,0,4],VPD=35.5861): // threaded_rod(d=13,pitch=2,l=10,lead_in=6,blunt_start=true,bevel=false,$fn=80); // Continues: // To change the form of the thread end you use the `lead_in_shape` argument. @@ -112,7 +112,7 @@ // of zero, but it is usually best if the thread width scale does not go to zero, // because that will give a sharply pointed thread end. If `x>1` the function must // return `[1,1]`. -// Figure(3D,Med,NoAxes,VPR=[74.6,0,338.4],VPT=[-0.829811,-2.56647,2.54868],VPD=28.8248): The standard lead in shapes +// Figure(3D,Med,NoAxes,VPR=[75,0,338],VPT=[-2,0,3.3],VPD=25): The standard lead in shapes // left_half()zrot(0){ // up(2) threaded_rod(d=13,pitch=2,l=2,blunt_start=true,bevel=false,$fn=128,anchor=BOT); // up(4) threaded_rod(d=13,pitch=2,l=2.5,blunt_start=true,bevel=false,$fn=128,lead_in_shape="cut",end_len2=.5,anchor=BOT); @@ -132,6 +132,7 @@ // Module: threaded_rod() // Synopsis: Creates an UTS/ISO triangular threaded rod. +// SynTags: Geom // Topics: Threading, Screws // See Also: threaded_nut() // Usage: @@ -271,6 +272,7 @@ module threaded_rod( // Module: threaded_nut() // Synopsis: Creates an UTS/ISO triangular threaded nut. +// SynTags: Geom // Topics: Threading, Screws // See Also: threaded_rod() // Usage: @@ -387,6 +389,7 @@ module threaded_nut( // Module: trapezoidal_threaded_rod() // Synopsis: Creates a trapezoidal threaded rod. +// SynTags: Geom // Topics: Threading, Screws // See Also: trapezoidal_threaded_nut() // Usage: @@ -538,6 +541,7 @@ module trapezoidal_threaded_rod( // Module: trapezoidal_threaded_nut() // Synopsis: Creates a trapezoidal threaded nut. +// SynTags: Geom // Topics: Threading, Screws // See Also: trapezoidal_threaded_rod() // Usage: @@ -659,6 +663,7 @@ module trapezoidal_threaded_nut( // Module: acme_threaded_rod() // Synopsis: Creates an ACME threaded rod. +// SynTags: Geom // Topics: Threading, Screws // See Also: acme_threaded_nut() // Usage: @@ -753,6 +758,7 @@ module acme_threaded_rod( // Module: acme_threaded_nut() // Synopsis: Creates an ACME threaded nut. +// SynTags: Geom // Topics: Threading, Screws // See Also: acme_threaded_rod() // Usage: @@ -857,6 +863,7 @@ module acme_threaded_nut( // Module: npt_threaded_rod() // Synopsis: Creates NPT pipe threading. +// SynTags: Geom // Topics: Threading, Screws // See Also: acme_threaded_rod() // Usage: @@ -979,6 +986,7 @@ module npt_threaded_rod( // Module: buttress_threaded_rod() // Synopsis: Creates a buttress-threaded rod. +// SynTags: Geom // Topics: Threading, Screws // See Also: buttress_threaded_nut() // Usage: @@ -1079,6 +1087,7 @@ module buttress_threaded_rod( // Module: buttress_threaded_nut() // Synopsis: Creates a buttress-threaded nut. +// SynTags: Geom // Topics: Threading, Screws // See Also: buttress_threaded_rod() // Usage: @@ -1179,6 +1188,7 @@ module buttress_threaded_nut( // Module: square_threaded_rod() // Synopsis: Creates a square-threaded rod. +// SynTags: Geom // Topics: Threading, Screws // See Also: square_threaded_nut() // Usage: @@ -1274,6 +1284,7 @@ module square_threaded_rod( // Module: square_threaded_nut() // Synopsis: Creates a square-threaded nut. +// SynTags: Geom // Topics: Threading, Screws // See Also: square_threaded_rod() // Usage: @@ -1372,6 +1383,7 @@ module square_threaded_nut( // Module: ball_screw_rod() // Synopsis: Creates a ball screw rod. +// SynTags: Geom // Topics: Threading, Screws // Usage: // ball_screw_rod(d, l|length, pitch, [ball_diam], [ball_arc], [internal=], ...) [ATTACHMENTS]; @@ -1476,6 +1488,7 @@ module ball_screw_rod( // Module: generic_threaded_rod() // Synopsis: Creates a generic threaded rod. +// SynTags: Geom // Topics: Threading, Screws // See Also: generic_threaded_nut() // Usage: @@ -1804,6 +1817,7 @@ module generic_threaded_rod( // Module: generic_threaded_nut() // Synopsis: Creates a generic threaded nut. +// SynTags: Geom // Topics: Threading, Screws // See Also: generic_threaded_rod() // Usage: @@ -1953,6 +1967,7 @@ module _nutshape(nutwidth, h, shape, bevel1, bevel2) // Module: thread_helix() // Synopsis: Creates a thread helix to add to a cylinder. +// SynTags: Geom // Topics: Threading, Screws // See Also: generic_threaded_rod() // Usage: