How To Make A DIY Belt Sander

Belt sanders are one of those tools that almost every woodworker has stored somewhere in their tools boxes, and for a good reason. This tool simplifies one of the most tiresome activities that woodworking requires, which are finishing and polishing wood.

Unfortunately, most belt sanders can cost hundreds of dollars. So, it’s not surprising that some people have no choice but to keep using traditional woodworking tools like chisels and sandpapers. Luckily, Mr. NK, a Youtube channel more with almost 400,000 followers, posted a video on how to solve this problem on your own. Now you can make your own belt sand with something as simple as a handheld drill.

Things You’ll Need For Your DIY Belt Sander

Before you get started assembling your sander, here’s a checklist of the things you’ll need according to Mr. NK. Make sure to print this list so as not to forget anything. The fast-moving, mechanical nature of a belt sanders means a single missing piece can be catastrophic.

  • 1 Pc. 42 cm x 36 cm x 2 cm plywood (can be thicker)
  • 6 Pcs. 5 cm (diameter) x 5 cm (thickness) cylindrical wood blocks
  • 4 Pcs. 5.4 cm (diameter) x 1 cm (thickness) wood discs
  • Wood glue
  • 2 Pc. 25 cm iron rods, one should have a screw groove at one end
  • 80 cm x 15 cm heavy-duty sandpaper of your desired grit
  • 1 Pc. 10 cm x 10 cm x 1 cm plywood
  • Nuts and bolts
  • Hand-Held Drill

How To Build A Belt Sander

Step 1: Apply wood glue on each side of your wood blocks. Also, apply some glue on your iron rods to prevent the woods books from rolling free once we turn on the machine.

Step 2: “Barbeque” three woodblocks with each iron rod. Make sure to leave equal spaces on each side of your iron rods. Afterward, insert a wood disc on each side of your iron rods. Your output should look something like this:

Step 3: To assemble the base for your belt sander, create four L-shaped wood pieces. Each piece should have a hole where your iron rods can fit. Drill two holes on the base of the L-shaped wood pieces. These holes are where the pieces will be bolted down on your wood base.

Step 4: Overlap the two ends of your sandpaper and cut both ends simultaneously at a 30-degree angle. Connect the two ends using a heavy-duty cloth and a generous amount of glue.

Take Caution From This Point Forward!

Step 5: Insert your iron rods with wood blocks into the sandpaper belt that you just made. Insert the four ends of the iron rods into each L-shaped wood piece that you made. Stretch the two ends just enough without putting too much strain on the sandpaper. Afterward, bolt down the four L-shaped wood pieces onto your wood base using eight nuts and bolts.

Step 6: Cut a hole in your 15 cm x 10 cm x 1 cm plywood that’s enough to secure the non-moving end of your handheld drill. This hole would be around 5 centimeters in diameter.

Step 7: Insert your drill into the hole of your wood piece. Then, secure it to the end of the rod with a screw groove. Then, screw the wood piece on the plywood base. Wait at least 24 hours to thoroughly dry all glued pieces. Congratulations! You now have a fully functioning DIY belt sander.

Your DIY belt sander can save you hundreds of dollars and dozens of hours with your woodworking business. However, as always, use extreme caution when building and using your homemade belt sander. Make sure to wear proper protective gears and avoid skipping any steps that are crucial for the integrity of the machine. If any of these steps are unclear, make sure to watch Mr. NK’s video on Youtube!

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