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+ a safety margin // margins from edges h_margin = hole_dist_side + thickness; v_margin = hole_dist_top*2 + thickness; v_margin = hole_dist_top*2 + thickness; working_height = height - v_margin; working_increment = working_height / (8+tolerance/3); // generally-useful spacing amount for vertical columns of stuff working_height = height - rail_clearance - thickness*2 - 16.5/2; // 16.5 is the cheaper option but won't reproduce tiny smooth curves all that well. MSLA (resin) printing will do far better detail work, but with buffering between (some) stages. Needs a _big_ knob, these are for steps only row_1 = vertical_space/7; row_2 = row_1 + v_margin + 12; row_2 = row_1 + v_margin.

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