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Initial commit for new branch with reversed brake arm direction on y-axis so that mechanical shocks at the wheel cause brakes to ease off, rather than jolting onto application.

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Teddy Middleton-Smith
2025-02-25 15:49:37 +00:00
parent 659001351e
commit cd60aff3e5
10 changed files with 18 additions and 9 deletions
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6
config.scad
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@@ -47,14 +47,14 @@ X_POS_AXLE_LEG_REAR = min(X_POS_WHEEL_CENTRE - T_WHEEL / 2 - SPACING_WASHER_AXLE
D_BEAM_BRAKE = 40;
T_BEAM_BRAKE = 5;
D_BRAKE_BALLSCREW_AXLE = 16; // M16 pitch 1.5
L_BRAKE_BALLSCREW_AXLE = 700;
L_BRAKE_BALLSCREW_AXLE = 450;
D_BRAKE_BALLSCREW_POWER_WHEEL = 120;
T_BRAKE_BALLSCREW_POWER_WHEEL = get_metric_bolt_head_height(D_BRAKE_BALLSCREW_AXLE);
D_WASHER_BRAKE_BALLSCREW_POWER_WHEEL = 50; // get_metric_bolt_washer_diameter_safe_working_clearance(D_BRAKE_BALLSCREW_AXLE);
T_WASHER_BRAKE_BALLSCREW_POWER_WHEEL = 3;
Z_OFFSET_BALLSCREW_AXLE_TO_BED_BASE = 125; // D_BRAKE_BALLSCREW_POWER_WHEEL / 2 + 25;
Y_OFFSET_BALLSCREW_LEG_REAR_FIXING_FROM_END = 100;
Y_OFFSET_BALLSCREW_LEG_FRONT_FIXING_FROM_END = Y_OFFSET_BALLSCREW_LEG_REAR_FIXING_FROM_END + 100;
Y_OFFSET_BALLSCREW_LEG_REAR_FIXING_FROM_END = 75;
Y_OFFSET_BALLSCREW_LEG_FRONT_FIXING_FROM_END = 200;
// L_BEAM_FIXING_BALLSCREW_TO_BED = D_BRAKE_BALLSCREW_AXLE + D_WASHER_FIXING_BALLSCREW_TO_BED * 2; // beam lying along bed, not perpendicular to bed
R_BASE_PLATE_FIXING_LEG_BRAKE_BALLSCREW_TO_BED = get_R_plate_square_base_plate_132(D_BEAM_BRAKE);
L_LEG_FIXING_BRAKE_BALLSCREW_TO_BED = Z_OFFSET_BALLSCREW_AXLE_TO_BED_BASE - R_BASE_PLATE_FIXING_LEG_BRAKE_BALLSCREW_TO_BED[2] + D_BEAM_BRAKE / 2;