• Ratioboxes (which basicly work as low-tier axle bends) need a plywood gear
• Plywood gears need the Quern to craft, which means some sawdust must be made manually

Possible solutions:

• Ratioboxes don't need gears (bad because they're clearly gearboxes)
• Some other way to get some sawdust? (bad because manual crafting)
• Plywood can be made in hand at lower efficiency