Oven control knob for D-shaft
A cracked oven knob slips on its shaft and makes setting temperature a guess. Most cookers use a 6 mm D-shaped shaft, so a replacement knob is a 40 mm diameter, 25 mm tall dome with a D bore 6.2 mm across and 4.7 mm to the flat, a pointer mark on the rim and finger grips around the skirt. A 3 mm wall plus a 10 mm deep boss keeps it rigid. Print it upside down in ABS, ASA or PETG, since the panel gets warm.
SpeakCAD builds the knob around your shaft profile and matches the diameter and height of the knobs still on the appliance so the set looks uniform. Ask for a chrome-style ring recess or a longer boss and see it instantly. The preview is free in the browser.
Create an oven knob 40 mm diameter and 25 mm tall with a domed top, twelve finger grooves around the skirt, 3 mm walls, a central boss 10 mm deep with a D bore 6.2 mm diameter and 4.7 mm across the flat, and a 2 mm pointer line.