Beginner's Guide to Woodturning a Bowl
Step-by-step guide made from Bob's Woodshop Bob Amarant's YouTube video.
This video provides a step-by-step guide for a beginner to turn their first wooden bowl on a lathe. Guided by an expert instructor, the project covers shaping the exterior, hollowing the interior, sanding, and applying a food-safe oil finish to a piece of tiger maple.
- Difficulty: beginner
Safety
- Always wear a face shield or safety glasses when operating the lathe.
- Ensure the wood blank is securely mounted before turning on the lathe.
- Keep hands and loose clothing away from the spinning workpiece.
Tools
- Wood Lathe (Laguna)
- Bowl Gouge
- Scraper (Shear scraper)
- Drill with Forstner Bit (Power drill) (optional)
- Power Sander (Drill-mounted sanding pad)
- Face Shield (Personal protective equipment)
Materials
- Tiger Maple Wood Blank (1, Tiger maple)
- Walnut Oil Finish (Food-safe oil, Mahoney's, 8 fl. oz.)
Step by step
Step 1: Shaping the Bowl Exterior
The instructor shapes the outside of the bowl blank using a bowl gouge and then smooths the surface with a scraper.
- Rough Shape the Exterior. Using a bowl gouge, remove material from the spinning wood blank to create the initial curved shape of the bowl's exterior and define the foot.
- Smooth with a Shear Scraper. Use a shear scraper to refine the exterior curve, removing any tool marks left by the gouge and creating a very smooth surface.
- Tip: Take light passes to gradually form the curve. You can always remove more wood, but you can't add it back.
- Common mistake: Digging the tool in too aggressively can cause a 'catch,' which can damage the bowl or be dangerous.
Step 2: Drilling the Center
After remounting the bowl, a drill with a Forstner bit is used to establish the depth and remove the center material.
- Drill the Center Hole. With the lathe spinning, use a drill equipped with a Forstner bit to bore a hole in the center of the bowl. This sets the final depth of the bowl's interior.
- Clear Chips and Repeat. Stop the lathe and reverse the drill to clear out the packed wood chips from the hole. Repeat the drilling process to reach the desired depth.
Step 3: Hollowing the Interior
A bowl gouge is used to hollow out the inside of the bowl, working in stages from the center to the rim to create a consistent wall thickness.
- Make Initial Hollowing Cuts. Using a bowl gouge, begin removing material from the inside, starting from the center hole and working outwards towards the rim.
- Widen the Interior. Continue making sweeping cuts from the center to the rim to gradually widen the bowl's interior and establish the wall thickness.
- Refine the Interior Curve. Take lighter finishing passes with the bowl gouge to smooth out the interior surface and achieve a consistent, even wall thickness all the way down to the bottom.
- Tip: Periodically stop the lathe to check the wall thickness with your fingers or calipers.
- Common mistake: Making the walls too thin, especially near the bottom, can weaken the bowl or cause it to break during turning.
Step 4: Sanding the Bowl
The bowl is sanded smooth on the lathe using a power sanding attachment on a drill.
- Power Sand the Bowl. While the bowl spins on the lathe, use a drill with a sanding pad attachment to smooth both the inside and outside surfaces.
- Tip: Start with a lower grit sandpaper and work your way up to a higher grit for a smoother finish.
Step 5: Applying the Oil Finish
The completed bowl is removed from the lathe, and a food-safe walnut oil finish is applied by hand to both the interior and exterior, revealing the wood's grain.
- Apply Oil to the Interior. Pour a generous amount of Mahoney's Walnut Oil Finish into the bowl and spread it evenly across the entire interior surface with your hand.
- Apply Oil to the Exterior. Turn the bowl over and apply the walnut oil to the exterior and the foot, ensuring all surfaces are coated.
- Tip: Let the oil soak in for a few minutes, then wipe off any excess with a clean cloth.