The advantage of the bowl sander is that the rotating head does not leave straight abrasive marks around the work like hand held sandpaper. Mandrels come in three sizes: 1" Mandrel 2" Mandrel 3" Mandrel. Now add another rubber band closer lathe bowl sanders edition the washer to bend the leaves inward [ Fig34 ]. You could also use a collet chuck or a drill lathe bowl sanders edition with a draw bar to hold the Foam Ball Sander. Now stop the lathe again and remove the protective tape. The soft sponge on the Bowl Sander allows the sandpaper sold separately to conform to the shape you are sanding. Spot sanding a defect on the inside of a bowl with the Foam Ball Sander.

I took several versions in Lathe Bowl Sanders Linkedin for an extended show and tell at a Baltimore Area Turners meeting. There seems to be an unavoidable trade-off between convenience and durability. Which approach is best depends on the application.

Figure The sanding pattern left by a foam backed grit disc sander when the lathe is turning. The sanding pattern left by a grit Foam Ball Sander when the lathe is turning. Figure The sanding pattern left after spot sanding with a foam backed disc with the lathe stopped. The sanding pattern left after spot sanding with a Foam Ball Sander with the lathe stopped. I deliberately started sanding the interior after a rough gouge cut.

Nine easy minutes later I had a better surface than I usually get. I used a Foam Ball Sander with , , and grit, and hand sanded with 3M non-woven abrasive. I skipped grits because this was done with an early version where it only made sense to make a separate Foam Ball Sander for each grit. This article will show how to make a Foam Ball Sander, how to modify abrasive discs to fit the ball, and three different ways to attach the abrasive.

Where ease of changing abrasive is paramount, Velcro is used to attach modified loop backed discs. If you want to be more aggressive or bought cheap loop discs that delaminate easily you can add Lathe Bowl Sanders 2020 mechanical holding power by pinning the ends of the abrasive leaves between washers. If durability is paramount you can use modified cloth backed abrasive discs held between washers.

For sanding the inside of a vessel the length you need depends on the maximum depth of vessel. The size washer depends upon the size ball you want to make. Prepare the washers. If you are making a Reinforced Velcro ball, cover one side of one washer with adhesive backed Velcro hook material. Cover the other washer with coarse 60 to grit abrasive. You could use PSA backed abrasive or spray adhesive with plain abrasive.

If you are making a Mechanical Attachment ball, cover both washers with coarse abrasive. Now assemble the mandrel. Spin a nut onto the all-thread about 2 inches. Drop the abrasive covered washer onto the all-thread with the abrasive away from the nut. Now add the other washer, so that the hook or abrasive side faces the abrasive of the first washer. Now spin two more nuts onto the all-thread. The last two nuts will be locked in place by using two wrenches to tighten them against each other.

Snug the other nut against the two locked nuts, holding the washers in place as in [Fig08]. You can cover the edges of the washer and last nut with a strip of masking tape to keep stray adhesive away [as in Fig08 ].

You can also use 1 jaws on a 4-jaw chuck, or remove the top jaws from a 4-jaw chuck. Spread some newsprint over your lathe bed to protect the ways, and spray adhesive on the mandrel while turning the lathe slowly by hand [ Fig09 ]. If you are using the Mechanical or Reinforced Velcro mandrel you will need to apply some foam to the center of the mandrel before winding the rest of the foam on. Spray adhesive on the strip.

Then wind the strip onto the exposed all thread until the level of the foam is equal to the diameter of the nuts [as in Fig12 ]. Note that the foam extends past the end of the all-thread.

Figure 12 After finishing winding on the filler foam to the mandrel in Fig Now cut a strip of foam to form the bulk of the ball. For the Mechanical or Reinforced Velcro, this strip should be the width of the distance from the washer to the end of the filler foam you just applied. Take a coffee break now to let the adhesive cure a bit. Starting to wind foam on a mandrel. Starting to wind self-stick on a mandrel.

After winding the foam on a mandrel. Now prepare to shape the ball. Remove the newsprint from the lathe bed so turning on your dust collector will be less exciting. Wrap masking tape or a narrow ripped strip of duct tape all the way around the tailstock third of the foam [ Fig16 ]. Turn on the lathe at a moderate to fast speed and also turn on your dust collector. Use coarse abrasive 80 or grit backed up with a wood scrap to shape the back half of the ball [as in Fig17]. First bring the un-taped portion of the ball to round, then shape the back of the ball [ Fig18 ].

After taping the front of the ball to keep it from unwinding while shaping the back of the ball. Underneath the ball is coarse abrasive taped to a scrap of wood that will be used to shape the ball. Shaping the back of the ball. After shaping the back of the ball. Stop the lathe. Gently remove the strip of tape protecting the tailstock end of the ball. Apply another strip around the headstock end of the ball.

Now stop the lathe again and remove the protective tape. After shaping the front of the ball. You can see the pretty blue foam dust coating on the abrasive. For the Velcro only mandrel, just make sure that a disc bent around the ball covers most of it [as in Fig21 ]. For a Mechanical only ball, check that the disc can extend over the washer on both sides of the disc.

Learn more about Amazon Prime. Get free delivery with Amazon Prime. Back to top. Get to Know Us. Amazon Payment Products. English Choose a language for shopping. Amazon Music Stream millions of songs. Amazon Advertising Find, attract, and engage customers.

Amazon Drive Cloud storage from Amazon. Alexa Actionable Analytics for the Web. Sell on Amazon Start a Selling Account. AmazonGlobal Ship Orders Internationally. ComiXology Thousands of Digital Comics. DPReview Digital Photography. Woodworking Plans. PDF Instructions. Free Product Videos. Store Directions. Read Prop 65 Info. Master Bowl Sander Kit Includes: 1 ea. Bowl Sander Mandrels Our Bowl Sander Mandrels are perfect for getting in those tight radius that regular sanders cannot.

Bowl Sander Backing Pads These backing pads protect your disc holder by mounting between the holder and sanding disc. Wavy Edge Sanding Disc Designed as a non-aggressive finishing system, the wavy edge design of the Wave sanding discs eliminates the ridges frequently caused by traditional round discs while producing an excellent finish.

New Wave Abranet Disc Abranet is a revolutionary product for vacuum-assisted sanding operations. Hook and loop design. Aluminum Oxide - durable and long lasting. Resin over resin bonding. Thousands of small holes for dust free sanding with vacuum assist. Better work environment.

Sandmaster Watch Video. Heavy Duty Contour Sander Sanding bowls on your lathe doesn't have to be difficult or tedious. System Includes: 1 ea. Heavy Duty Handle 1 ea. Comes with 10 assorted disc. Previous Page. Gwinnett Woodworkers Association Meets Here.

Shipping Information. Ordering Information. The Ultimate Sanding System. Watch Video. Package Includes: 1 ea. Intermittent 10mm thick soft sanding pad holders - add for tight curves 5 ea. Note: We suggest using a Sharpie marker to write the Spencer Sanders Bowl Game Kit grit on the side of a holder, so when mounted on wall or however you decide to store them it will be easily identified when you need them.

Bowl Sander Kits. Each Size Bowl Sander Kit includes: 1 ea. Mandrel 1 ea. Bowl Sanding Disc - 80 grit 1 ea. Bowl Sanding Disc - grit 1 ea. Bowl Sanding Disc - grit. Master Bowl Sander Kit. Includes: 1 ea. Master Platinum Bowl Sander Kit. Bowl Sander Mandrels. Mandrels come in three sizes: 1" Mandrel 2" Mandrel 3" Mandrel.

Butler Tray Hinges Uk Name Best Vintage Woodworking Vise Keyboard Cnc Sign Router Machine Error Best Bench Players Nfl Fantasy 2020