The question is unclear. "Plain door" can mean a door that is unadorned or it could be a misspelling of "plane a door." Here are two possible answers depending on the intended meaning:
1. Using a Standard, Unadorned Door
A plain door, meaning a standard, unadorned door, is used like any other door:
- Opening: Turn the doorknob or handle (if present). Push or pull the door to swing it open.
- Closing: Pull or push the door to swing it closed. Ensure the latch engages the strike plate to secure the door.
- Entering/Exiting: Walk through the doorway created when the door is open.
- Security: If equipped with a lock, use the key or locking mechanism to secure the door.
Essentially, a plain door serves the basic function of providing entry and exit to a space and can be secured for privacy and safety.
2. Using a Hand Plane to Plane a Door
If the question intended to ask how to plane a door (using a hand plane to shave off wood), here's how:
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Preparation: Ensure the door is securely supported. Identify the areas needing planing (e.g., rubbing against the frame). Mark the area to be planed with a pencil.
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Tool Setup: Adjust the hand plane blade for a shallow cut. The blade should be sharp and properly set.
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Planing Technique:
- Hold the plane firmly with both hands.
- Start with the front of the plane on the door, applying pressure as you push forward.
- Maintain a consistent angle and pressure throughout the stroke.
- Ensure the plane glides smoothly against the door's surface.
- Avoid tilting the plane, which can result in uneven cuts.
- Plane in the direction of the wood grain whenever possible.
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Checking Progress: Regularly check the fit of the door against the frame. Continue planing until the door opens and closes smoothly without sticking.
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Finishing: After planing, sand the planed area to create a smooth surface.
