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/* |
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* Astro Parts -- Canon EF 70-300 on Vixen Dovetail Plate |
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* |
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* Copyright (c) 2021 Steve Cross <flip@foxhollow.cc> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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|
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include <_split_ring.scad>; |
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|
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// This is designed for Canon EF 70-300 lens |
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// mount with standard bar offset (as defined by the EOS 60D and EOS |
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// 600D measurements)... |
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|
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// This lens has a has a 76mm diameter and is round when measured near the |
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// EOS mounting flange, which is the only location on this lens that doesn't |
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// rotate when focusing or |
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mounting_point_diameter = 76; |
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|
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// The camera allows for 13mm mounting width, but this doesn't provide enough |
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// room for a 1/4" nut, so we need to make it a little wider and it can just |
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// hang over a bit |
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ring_w = 15; |
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|
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|
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// This is standard for a vixen dovetail plate |
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dovetail_width = 35; |
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/* |
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* Astro Parts -- ASI178MC on Vixen Dovetail Plate |
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* |
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* Copyright (c) 2021 Steve Cross <flip@foxhollow.cc> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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|
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include <_split_ring.scad>; |
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|
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// This is designed for Rokinon 16mm ED AS UMC CS lens for Canon EOS |
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// mount with standard bar offset (as defined by the EOS 60D and EOS |
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// 600D measurements)... |
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|
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// This lens has a has a 80mm diameter and is round when measured near the |
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// objective lens |
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mounting_point_diameter = 80; |
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|
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// The camera allows for 13mm mounting width, but this doesn't provide enough |
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// room for a 1/4" nut, so we need to make it a little wider and it can just |
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// hang over a bit |
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ring_w = 15; |
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|
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|
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// This is standard for a vixen dovetail plate |
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dovetail_width = 35; |
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/* |
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* Astro Parts -- Camera Shim |
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* |
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* Copyright (c) 2021 Steve Cross <flip@foxhollow.cc> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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// [unit: mm] |
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width = 35; |
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// [unit: mm] |
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height = 31; |
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// height = 5; |
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// [unit: mm] |
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length = 40; |
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// [unit: mm] |
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bolt_shaft_d = 6.75; |
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// [unit: mm] |
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alignment_pin_d = 6.5; |
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// [unit: mm] |
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alignment_pin_h = 5; |
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// [unit: mm] |
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// distance from the outside of the bolt hole to the alignment pins |
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alignment_pin_offset = 2; |
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$fn = 360; |
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difference() { |
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cube([width, length, height]); |
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translate([width/2, length/2, -1]) |
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cylinder(h=height+2, d=bolt_shaft_d); |
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} |
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// pin 1 |
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translate([width/2, length/2+(alignment_pin_offset+bolt_shaft_d/2), 0]) { |
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difference() { |
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cylinder(h=height+alignment_pin_h, d=alignment_pin_d); |
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translate([-alignment_pin_d/2, -alignment_pin_d/2, -1]) |
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cube([alignment_pin_d, alignment_pin_d/2, height+alignment_pin_h+2]); |
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} |
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} |
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// pin 2 |
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translate([width/2, length/2-(alignment_pin_offset+bolt_shaft_d/2), 0]) { |
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difference() { |
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cylinder(h=height+alignment_pin_h, d=alignment_pin_d); |
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translate([-alignment_pin_d/2, 0, -1]) |
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cube([alignment_pin_d, alignment_pin_d/2, height+alignment_pin_h+2]); |
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} |
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} |
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