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Step 3Make it...
Put the knife in a vise or use clamps to hold it down firmly. Once secure, begin cutting the arc using the tool of your choice. I used a Dremel and was surprised that one cutting blade made the entire cut.
WARNING: Be sure to wear safety goggles and gloves.
Then using a grinder or file, flatten out ALL of the blade edges and corners. Carefully test it with your finger to make sure it is not sharp. We don't want to draw real blood.
Using hot glue, secure the tubing to the blade. You may want to test the blade on your arm for the best location of the tubing so the 'blood' squirts out at the right spot.
WARNING: Be sure to wear safety goggles and gloves.
Then using a grinder or file, flatten out ALL of the blade edges and corners. Carefully test it with your finger to make sure it is not sharp. We don't want to draw real blood.
Using hot glue, secure the tubing to the blade. You may want to test the blade on your arm for the best location of the tubing so the 'blood' squirts out at the right spot.
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