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#18897
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Fermata
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The Thing is the Rod saw, with Rotary Tool Flex dremel 225.

I have attached some other shots of it as I used it.

The holders for the tubes (25mm OD) I just whipped up in OpenSCAD.

Here is the source for it if you want it as well.
——— Start ————
$fn = 60;

tube_r = (25.5) /2; //the .5 is slop
thickness = 7.5;
outer_r = tube_r + thickness;
outer_length =10;

top_gap = 2;

bottom_from_base = 15;

mounterZ=5;
mounterY= outer_r*2;
mounterX= 40;

screw_hole_r = 3/2;
counter_sink = 2.5;
counter_sink_r = 6.2 /2;

difference(){
union(){
translate ([0,0,outer_r – thickness + bottom_from_base])
rotate ([0,90,0])
cylinder(d=outer_r*2, h=outer_length);

translate([0,-outer_r,0])
cube([outer_length,outer_r*2,outer_r – thickness + bottom_from_base]);
translate([0,-outer_r,0])
cube([mounterX, mounterY, mounterZ]);
};

translate ([-outer_length/2,0,outer_r – thickness + bottom_from_base])
rotate ([0,90,0])
cylinder(d=tube_r*2, h=outer_length*2);

translate([-outer_length/2,-top_gap/2,bottom_from_base + tube_r + thickness ])
cube([outer_length*2,top_gap,thickness*2]);

translate([((mounterX – outer_length )/2) + outer_length,0,-mounterZ + 0.01])
union()
{
cylinder(d=screw_hole_r*2, h=mounterZ * 2);
translate([0,0,mounterZ +counter_sink ])
cylinder(h= counter_sink, r2 = counter_sink_r, r1 = screw_hole_r);
}
};
——— end ————