Chamber volume over one rotor revolution, with port connection per chamber (green = inlet, red = outlet, pink = both = short circuit, grey hatched = sealed while volume changes)
Axial section (schematic, through the shaft axis)
Type values directly, drag the sliders, or paste from a spreadsheet. Paste a column of numbers into a cell to fill downward, or paste “name ⇥ value” rows (the parameter key or its label) to set them by name. Values outside the slider range are allowed. The current parameters are also stored in the page address, so a bookmark or link reopens this exact design.
Exported in mm at the current shaft angle. Housing at z = 0…depth, side plates outside it, rotor and fixed gear between the side gaps. Peripheral ports are exported as cylinder bodies and relief grooves as slot bodies (one per side plate): subtract them from the housing or plates in your CAD tool. Gear teeth are schematic trapezoids (correct counts, pitch radii and module), not involutes.