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sprockets.rb
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sprockets.rb
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model :Sprocket_GT2_20_5mm do
attr_reader bore_diameter: 5.mm
attr_reader diameter: 16.mm
attr_reader length: 16.mm
attr_reader belt_width: 6.mm
attr_reader gear_diameter: 12.mm
attr_reader flange_thickness: 1.5.mm
attr_reader hub_diameter: 16.mm
attr_reader hub_length: length - 2*flange_thickness - belt_width
# Hub
extrude length:hub_length do
annulus inner_diameter:bore_diameter, diameter:hub_diameter
end
translate z:hub_length do
# Bottom Flange
extrude length:flange_thickness do
annulus inner_diameter:bore_diameter, diameter:diameter
end
translate z:flange_thickness do
# Geared portion
extrude length:belt_width do
annulus inner_diameter:bore_diameter, diameter:gear_diameter
end
# Top Flange
extrude length:flange_thickness, origin:[0,0, belt_width] do
annulus inner_diameter:bore_diameter, diameter:diameter
end
end
end
end
model :Sprocket_GT2_36_5mm do
attr_reader bore_diameter: 5.mm
attr_reader diameter: 26.mm
attr_reader length: 16.mm
attr_reader belt_width: 7.mm
attr_reader gear_diameter: 22.5.mm
attr_reader flange_thickness: 1.5.mm
attr_reader hub_diameter: 14.mm
attr_reader hub_length: length - 2*flange_thickness - belt_width
attr_reader belt_bottom: hub_length + flange_thickness
attr_reader belt_top: belt_bottom + belt_width
# Hub
extrude length:hub_length do
annulus inner_diameter:bore_diameter, diameter:hub_diameter
end
translate z:hub_length do
# Bottom Flange
extrude length:flange_thickness do
annulus inner_diameter:bore_diameter, diameter:diameter
end
translate z:flange_thickness do
# Geared portion
extrude length:belt_width do
annulus inner_diameter:bore_diameter, diameter:gear_diameter
end
# Top Flange
extrude length:flange_thickness, origin:[0,0, belt_width] do
annulus inner_diameter:bore_diameter, diameter:diameter
end
end
end
end
model :Sprocket_GT2_36_10mm do
attr_reader bore_diameter: 10.mm
attr_reader diameter: 26.mm
attr_reader length: 16.mm
attr_reader belt_width: 7.mm
attr_reader gear_diameter: 22.5.mm
attr_reader flange_thickness: 1.5.mm
attr_reader hub_diameter: 14.mm
attr_reader hub_length: length - 2*flange_thickness - belt_width
attr_reader belt_bottom: hub_length + flange_thickness
attr_reader belt_top: belt_bottom + belt_width
# Hub
extrude length:hub_length do
annulus inner_diameter:bore_diameter, diameter:hub_diameter
end
translate z:hub_length do
# Bottom Flange
extrude length:flange_thickness do
annulus inner_diameter:bore_diameter, diameter:diameter
end
translate z:flange_thickness do
# Geared portion
extrude length:belt_width do
annulus inner_diameter:bore_diameter, diameter:gear_diameter
end
# Top Flange
extrude length:flange_thickness, origin:[0,0, belt_width] do
annulus inner_diameter:bore_diameter, diameter:diameter
end
end
end
end