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added an epsilon to the inside diameter of the rings to prevent bolts through holes resulting in 'WARNING: CSG normalisation resulted in empty tree'; switched to using cubes for hexagons; added 626 bearing size; #16

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Generally okay except for the comments I left

@@ -194,36 +231,38 @@ function motorLength(model=Nema23, size=NemaMedium) = lookup(size, model);

module motor(model=Nema23, size=NemaMedium, dualAxis=false, pos=[0,0,0], orientation = [0,0,0]) {

length = lookup(size, model);
motorDef = NemaDefinitions[model];

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It looks like this changes the format of the model parameter from the motor definition structure to an array index. This isn't acceptable because it'll break many designs floating around the internet that use this module.

@@ -194,36 +231,38 @@ function motorLength(model=Nema23, size=NemaMedium) = lookup(size, model);

module motor(model=Nema23, size=NemaMedium, dualAxis=false, pos=[0,0,0], orientation = [0,0,0]) {

length = lookup(size, model);
motorDef = NemaDefinitions[model];
echo(NemaDefinitions[14]);

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This echo shouldn't be here, I think.

module nutHole(size, units=MM, tolerance = +0.0001, proj = -1)
{
//takes a metric screw/nut size and looksup nut dimensions
radius = METRIC_NUT_AC_WIDTHS[size]/2+tolerance;
height = METRIC_NUT_THICKNESS[size]+tolerance;
radius = METRIC_NUT_AC_WIDTHS[size]+2*tolerance;

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Suggested change
radius = METRIC_NUT_AC_WIDTHS[size]+2*tolerance;
width = METRIC_NUT_AC_WIDTHS[size]+2*tolerance;

This isn't really a radius any more.

if (proj == -1)
{
cylinder(r= radius, h=height, $fn = 6, center=[0,0]);
translate([0,0,(height/2)-tolerance]) hexagon(height=radius, depth=height);

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Suggested change
translate([0,0,(height/2)-tolerance]) hexagon(height=radius, depth=height);
translate([0,0,(height/2)-tolerance]) hexagon(height=width, depth=height);

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3 participants