Adapter Plate

""" Parametric ADAPTER PLATE generator =================================== Circular plate that bolts to the existing spreader housing and carries the auger shaft bearing. Spec: Outer diameter 126 mm Thickness 6 mm Center (shaft) hole 20 mm Mounting holes 4 x M5, equally spaced on a 110 mm bolt circle HOW TO USE (on your own machine): pip install cadquery python adapter_plate.py Edit the PARAMETERS block and re-run for a new STEP. M5 HOLE NOTE: BOLT_HOLE = 5.5 -> clearance hole, bolt passes THROUGH (default here). For TAPPED M5 threads instead, set BOLT_HOLE = 4.2 (tapping drill) and thread them after machining/printing. """ import cadquery as cq # ----------------- PARAMETERS (edit these) ----------------- OD = 126.0 # mm outer diameter THK = 6.0 # mm plate thickness CENTER_HOLE = 20.0 # mm center hole for shaft BOLT_CIRCLE = 110.0 # mm diameter of the mounting bolt circle BOLT_HOLE = 5.5 # mm M5 clearance (use 4.2 to tap M5 threads) N_BOLTS = 4 # number of mounting holes START_ANGLE = 45.0 # deg angular position of first hole (45 = diagonals) # ----------------------------------------------------------- plate = ( cq.Workplane("XY") .circle(OD / 2.0).extrude(THK) # disc .faces(">Z").workplane() .hole(CENTER_HOLE) # center shaft hole (through) .faces(">Z").workplane() .polarArray(radius=BOLT_CIRCLE / 2.0, startAngle=START_ANGLE, angle=360.0, count=N_BOLTS) .hole(BOLT_HOLE) # 4x mounting holes (through) ) cq.exporters.export(plate, "adapter_plate.step") cq.exporters.export(plate, "adapter_plate.stl") # optional, for printing/preview print("Wrote adapter_plate.step and adapter_plate.stl") print(f"OD={OD} THK={THK} center={CENTER_HOLE} " f"BC={BOLT_CIRCLE} {N_BOLTS}x M5 (hole {BOLT_HOLE})")

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.